Optimum OPTimill MH 25 SV User manual

Operating Manual
Version 1.0.4
Milling machine
Item no. 333 8160

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Table of contents
1 Safety
1.1 Rating plate...............................................................................................................................................6
1.2 Safety instructions (warning notes)...........................................................................................................7
1.2.1 Classification of hazards...........................................................................................................................7
1.2.2 Other pictograms ......................................................................................................................................7
1.3 Intended use .............................................................................................................................................8
1.4 Reasonably foreseeable misuse...............................................................................................................9
1.4.1 Avoiding misuse........................................................................................................................................9
1.5 Possible dangers caused by the milling machine ...................................................................................11
1.6 Qualification of personnel .......................................................................................................................11
1.6.1 Target group ...........................................................................................................................................11
1.6.2 Authorized personnel..............................................................................................................................12
1.6.3 Obligations of the operating company ....................................................................................................12
1.6.4 Obligations of the operator .....................................................................................................................12
1.6.5 Additional requirements regarding the qualification................................................................................13
1.7 Operator positions ..................................................................................................................................13
1.8 Safety measures during operation..........................................................................................................13
1.9 Safety devices ........................................................................................................................................13
1.9.1 Emergency stop mushroom button.........................................................................................................14
1.9.2 Lockable main switch..............................................................................................................................14
1.9.3 Stored charge .........................................................................................................................................14
1.9.4 Separation guard ....................................................................................................................................15
1.10 Safety check ...........................................................................................................................................15
1.11 Personal protective equipment ...............................................................................................................16
1.12 For your own safety during operation .....................................................................................................16
1.13 Switching-off and securing the milling machine......................................................................................16
1.14 Using lifting equipment ...........................................................................................................................16
1.15 Icons on the milling machine ..................................................................................................................17
1.16 Electrical system.....................................................................................................................................17
1.17 Inspection deadlines ...............................................................................................................................17
2 Technical data
2.1 Electrical connection...............................................................................................................................18
2.2 Milling capacity .......................................................................................................................................18
2.3 Spindle seat ............................................................................................................................................18
2.4 Drill-mill head ..........................................................................................................................................19
2.5 Cross table..............................................................................................................................................19
2.6 Dimensions .............................................................................................................................................19
2.7 Working area ..........................................................................................................................................19
2.8 Speeds....................................................................................................................................................19
2.9 Environmental conditions........................................................................................................................20
2.10 Operating material ..................................................................................................................................20
2.11 Emissions ...............................................................................................................................................20
3 Delivery, interdepartmental transport, assembly and commissioning
3.1 Notes on transport, installation, commissioning .....................................................................................21
3.1.1 General risks during internal transport....................................................................................................21
3.2 Scope of delivery ....................................................................................................................................22
3.3 Installation and assembly .......................................................................................................................22
3.3.1 Requirements regarding the installation site...........................................................................................22
3.3.2 Load suspension point............................................................................................................................22
3.3.3 Assembly ................................................................................................................................................22
3.4 Dimensions .............................................................................................................................................23
3.5 First commissioning ................................................................................................................................24

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3.6 Electrical connection .............................................................................................................................. 24
3.6.1 Current in the Protective Earth Ground Wire.......................................................................................... 24
3.7 Cleaning and lubrication ......................................................................................................................... 25
4Operation
4.1 Safety ..................................................................................................................................................... 26
4.2 Control and indicating elements ............................................................................................................. 26
4.2.1 Control panel .......................................................................................................................................... 27
4.3 Switching on the milling machine ........................................................................................................... 27
4.4 Switching off the milling machine ........................................................................................................... 27
4.5 Resetting an emergency stop situation .................................................................................................. 28
4.6 Power failure, Restoring readiness for operation ................................................................................... 28
4.7 Speed setting ......................................................................................................................................... 28
4.8 Feed speed ............................................................................................................................................ 28
4.8.1 Resetting the automatic feed.................................................................................................................. 28
4.8.2 Automatic feed of an axis ....................................................................................................................... 29
4.8.3 Rapid feed .............................................................................................................................................. 29
4.9 Insert tool................................................................................................................................................ 29
4.9.1 Quick-change clamping system ............................................................................................................. 29
4.9.2 Removal ................................................................................................................................................. 29
4.9.3 With draw bar - until version 1.0 ( Building year to 10/2015).................................................................. 30
4.9.4 Removal ................................................................................................................................................. 30
4.9.5 Use of collets.......................................................................................................................................... 31
4.10 Clamping the workpieces ....................................................................................................................... 31
4.11 Swivelling the milling head ..................................................................................................................... 31
4.12 Selecting the speed................................................................................................................................ 32
4.12.1 Standard values for cutting speeds ........................................................................................................ 32
4.12.2 Standard values for speeds with HSS – Eco – twist drilling ................................................................... 33
4.13 Operation DRO5..................................................................................................................................... 34
4.13.1 Keyboard (eight keys) ............................................................................................................................ 34
4.13.2 Operations.............................................................................................................................................. 34
4.13.3 Menu ...................................................................................................................................................... 34
4.13.4 The main menu ...................................................................................................................................... 35
4.13.5 LCD display parameter setting ............................................................................................................... 35
4.13.6 Parameter setting of X Y Z-axis and speed axis .................................................................................... 36
4.13.7 Parameter setting of X-axis .................................................................................................................... 36
4.13.8 Parameter setting of speed axis ............................................................................................................. 36
5 Maintenance
5.1 Safety ..................................................................................................................................................... 37
5.1.1 Preparation............................................................................................................................................. 37
5.1.2 Restarting ............................................................................................................................................... 37
5.2 Inspection and maintenance .................................................................................................................. 37
5.3 Repair..................................................................................................................................................... 42
5.3.1 Customer service technician .................................................................................................................. 42
6 Ersatzteile - Spare parts
6.1 Ersatzteilbestellung - Ordering spare parts ............................................................................................ 43
6.2 Hotline Ersatzteile - Spare parts Hotline ................................................................................................ 43
6.3 Service Hotline ....................................................................................................................................... 43
6.4 Elektrische Ersatzteile - Electrical spare parts ....................................................................................... 43
6.5 Schaltplan - Wiring diagram ................................................................................................................... 43
6.6 Ersatzteilzeichnungen - Spare part drawings......................................................................................... 44
6.7 Schaltplan, Einzelplatinen - Wiring diagram,single boards ....................................................................58
6.8 Schaltplan, zusammen gefasste Platinen - Wiring diagram,merged boards .......................................... 61
7 Malfunctions
7.1 Malfunctions on the milling machine ...................................................................................................... 64

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8 Appendix
8.1 Copyright ................................................................................................................................................65
8.2 Terminology/Glossary.............................................................................................................................65
8.3 Change information operating manual....................................................................................................65
8.4 Liability claims for defects / warranty ......................................................................................................66
8.5 Advice for disposal / Options of reuse: ...................................................................................................66
8.6 Storage ...................................................................................................................................................67
8.7 Dismantling, disassembling, packing and loading ..................................................................................67
8.7.1 Decommissioning ...................................................................................................................................68
8.7.2 Dismantling .............................................................................................................................................68
8.7.3 Disassembly ...........................................................................................................................................68
8.7.4 Packing and loading ...............................................................................................................................68
8.8 Disposal of new device packaging..........................................................................................................68
8.9 Disposal of lubricants and coolants ........................................................................................................68
8.10 Disposal via municipal collection facilities ..............................................................................................68
8.11 Product follow-up ....................................................................................................................................69

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Preface
Dear customer,
Thank you very much for purchasing a product made by OPTIMUM.
OPTIMUM metal working machines offer a maximum of quality, technically optimum solutions and convince
by an outstanding price performance ratio. Continuous enhancements and product innovations guarantee
state-of-the-art products and safety at any time.
Before commissioning the machine please thoroughly read these operating instructions and get familiar with
the machine. Please also make sure that all persons operating the machine have read and understood the
operating instructions beforehand.
Keep these operating instructions in a safe place nearby the machine.
Information
The operating instructions include indications for safety-relevant and proper installation, operation and main-
tenance of the machine. The continuous observance of all notes included in this manual guarantee the safety
of persons and of the machine.
The manual determines the intended use of the machine and includes all necessary information for its eco-
nomic operation as well as its long service life.
In the paragraph "Maintenance" all maintenance works and functional tests are described which the operator
must perform in regular intervals.
The illustration and information included in the present manual can possibly deviate from the current state of
construction of your machine. Being the manufacturer we are continuously seeking for improvements and
renewal of the products. Therefore, changes might be performed without prior notice. The illustrations of the
machine may be different from the illustrations in these instructions with regard to a few details. However,
this does not have any influence on the operability of the machine.
Therefore, no claims may be derived from the indications and descriptions. Changes and errors are reserved!
Your suggestion with regard to these operating instructions are an important contribution to optimising our
work which we offer to our customers. For any questions or suggestions for improvement, please do not hesi-
tate to contact our service department.
If you have any further questions after reading these operating instructions and you are not able to
solve your problem with a help of these operating instructions, please contact your specialised
dealer or directly the company OPTIMUM.
Optimum Maschinen Germany GmbH
Dr.- Robert - Pfleger - Str. 26
D-96103 Hallstadt
Mail: [e-mail]
Internet: www.optimum-maschinen.com

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1 Safety
Glossary of symbols
This part of the operating instructions
explains the meaning and use of the warning notes included in these operating instructions,
defines the intended use of the milling machine,
points out the dangers that might arise for you or others if these instructions are not
observed,
informs you about how to avoid dangers.
In addition to these operation instructions, please observe
the applicable laws and regulations,
the statutory provisions for accident prevention,
the prohibition, warning and mandatory signs as well as the warning notes on the milling
machine.
When installing, operating, maintaining and repairing the milling machine, it is necessary to
observe the corresponding standards.
If European standards have not yet been incorporated in the national legislation of the country
of destination, the specific applicable regulations of each country must be observed.
If required it is necessary to take the corresponding measures to comply with the country-spe-
cific regulations before putting the milling machine into operation.
Always keep this documentation near the milling machine.
If you would like to order another operating manual for your machine, please indicate the serial
number of your machine. The serial number is located on the type plate.
1.1 Rating plate
provides further instructions
calls on you to act
enumerations

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INFORMATION
If you are unable to rectify an issue using these operating instructions, please contact us for
advice:
Optimum Maschinen Germany GmbH
Dr. Robert-Pfleger-Str. 26
D-96103 Hallstadt
Email: [e-mail]
1.2 Safety instructions (warning notes)
1.2.1 Classification of hazards
We classify the safety warnings into different categories. The table below gives an overview of
the classification of symbols (pictograms) and the signal words for each specific danger and its
(possible) consequences.
1.2.2 Other pictograms
Symbol Signal word Definition / consequence
DANGER! Impending danger that will cause serious injury or death to people.
WARNING! A danger that can cause serious injury or death.
CAUTION! A danger or unsafe procedure that can cause personal injury or damage to
property.
ATTENTION!
Situation that could cause damage to the milling machine and products
and other types of damage.
No risk of injury to people.
INFORMATION
Practical tips and other important or useful information and notes.
No dangerous or harmful consequences for people or objects.
In case of specific dangers, we replace the pictogram with
or
general danger with a warning of injury to hands, hazardous electrical
voltage,
rotating parts.
Warning: danger of
slipping!
Warning: risk of stumbling! Warning: hot surface! Warning: biological hazard!

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1.3 Intended use
WARNING!
In the event of improper use, the milling machine
will endanger personnel,
the milling machine and other material property of the operating company will be
endangered,
the correct function of the milling machine may be affected.
The milling machine is designed and manufactured to be used for milling and drilling cold met-
als or other non-flammable materials or materials that do not constitute a health hazard by
using commercial milling and drilling tools.
The milling machine must only be installed and operated in a dry and well-ventilated place.
If the milling machine is used in any way other than described above, modified without the
approval of the company Optimum Maschinen Germany GmbH, the milling machine is being
used improperly.
We will not be held liable for any damages resulting from any operation which is not in accord-
ance with the intended use.
We expressly point out that the guarantee or CE conformity will expire, if any constructive, tech-
nical or procedural changes are not performed by the company Optimum Maschinen Germany
GmbH. It is also part of intended use that you
the maximum values for the milling machine are complied with,
the operating manual is observed,
the inspection and maintenance instructions are observed.
 Technical data on page 18
Warning: automatic start-
up!
Warning: tilting danger! Warning: suspended loads! Caution, danger of
explosive substances!
Activation forbidden! Read the operating
instructions before
commissioning!
Disconnect the mains plug! Wear protective glasses!
Wear protective gloves! Wear safety shoes! Wear a protective suit! Use ear protection!
Only switch when stopped! Protect the environment! Contact address

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WARNING!
Severe injuries due to non-intended use.
It is forbidden to make any modifications or alternations to the operation values of the
milling machine. They could endanger the personnel and cause damage to the milling
machine.
1.4 Reasonably foreseeable misuse
Any other use other than that specified under "Intended use" or any use beyond the described
use shall be deemed as non-intended use and is not permissible.
Any other use has to be discussed with the manufacturer.
It is only permissible to process metal, cold and non-inflammable materials with the milling
machine.
In order to avoid misuse, it is necessary to read and understand the operating instructions
before the machine is placed into operation for the first time.
The operators must be qualified.
1.4.1 Avoiding misuse
Use of suitable cutting tools.
Adapting the speed adjustment and feed to the material and workpiece.
Clamp workpieces firmly and free of vibration.
Risk of fire and explosion due to the use of flammable materials or cooling lubricants.
Before processing inflammable materials (e.g. aluminium, magnesium) or using inflamma-
ble auxiliary materials (e.g. spirit), you need to take additional preventive measures in order
to avoid health risks.
When processing plastics the operating company of the machine must ensure that static
electricity generated during the machining process can be discharged easily.
When processing carbons, graphite and carbon-fibre-reinforced carbons, the machine is no
longer being used as intended. The warranty is void. When processing carbons, graphite
and carbon-fibre-reinforced carbons and similar materials, the machine can be damaged
quickly, even if the dust generated is completely evacuated during the work process.
ATTENTION!
The workpiece must always be anchored in a machine vice, jaw chuck or other
appropriate clamping tool, such as clamping claws.
WARNING!
Risk of injury caused by flying workpieces.
Clamp the workpiece in the machine vice. Make sure that the workpiece is firmly clamped in
the machine vice and that the machine vice is firmly clamped onto the machine table.
Use cooling and lubricating agents to increase the durability of the tool and to improve the
surface quality.
Clamp the cutting tools and workpieces on clean clamping surfaces.
Sufficiently lubricate the machine.
Correctly adjust the bearing clearance and the guidings.
Recommendations:
Insert the drill in a way that it is positioned exactly between the three clamping jaws of the
drill chuck.
Clamp end mills (or shank cutters) in a collet chuck using the corresponding collets.
Clamp end face mills using shell end mill arbors.
When drilling, make sure that

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the suitable speed is set depending on the diameter of the drill,
the pressure must only be such that the drill can cut without load,
if there is too much pressure, the drill will wear quickly and may even break or jam in the
borehole. If the drill jams, immediately stop the main motor by pressing the emergency stop
button,
for hard materials, e.g. steel, use commercial cooling / lubricating agents,
generally always back the spindle out of the workpiece while it is still turning.
ATTENTION!
Do not use the drill chuck as a milling tool. Never clamp a milling cutter into a drill chuck. Use a
collet chuck and the corresponding collets for end mills (or shank cutters).
When milling make sure that
the appropriate cutting speed is selected,
for workpieces with normal strength values, e.g. steel 18-22 m/min,
for workpieces with high strength values, 10-14 m/min,
the pressure is selected in a way that the cutting speed remains constant,
for hard materials, use commercial cooling / lubricating agents.
INFORMATION
The milling machine MH25SV is built according to the standard EN 61800-3 EMC class C2.
WARNING!
This machine is not intended for use in residential buildings, in which the power supply
is provided via a public low voltage supply system. In these areas it may possibly be
difficult to guarantee electromagnetic compatibility due to lead bound as well as emitted
interferences.
Overview of the EMC categories:
Categorie C1
required limit values Class B Group 1 according to EN 55011
Categorie C2
Required limit values class A Group 1 according to EN 55011, Installation by EMC experts
and warning: “This is a product of category C2 according to EN 61800-3. This product may
cause radio interference in a residential area. In this case, it may be necessary for the ope-
rator to take appropriate action.“
Categorie C3
Required limit values class A group 2 according to EN 55011, whereby these limit values
are below those of class A group 1, plus warning: „This type is not suitable for connection to
a public low-voltage network supplying residential buildings. When connecting to a public
low voltage network, radio frequency interference is expected. "
This machine
Categorie C1 C2 C3 C4
Environment
Residential area
Business area
Industrial area
Industrial area
Voltage / Current < 1000 V > 1000 V
EMC knowledge no requirement Installation and commissioning by an EMC expert

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1.5 Possible dangers caused by the milling machine
The milling machine was built using the latest technological advances.
Nonetheless, there remains a residual risk because the milling machine operates at
high speeds,
with rotating parts and tools,
electrical voltage and currents.
We have used construction resources and safety techniques to minimize the health risk to per-
sonnel resulting from these hazards.
If the milling machine is used and maintained by personnel who are not duly qualified, there
may be a risk resulting from incorrect or unsuitable maintenance of the milling machine.
INFORMATION
Everyone involved in the assembly, commissioning, operation and maintenance must
be duly qualified,
and strictly follow these operating instructions.
Always disconnect the milling machine from the electrical power supply when performing clean-
ing or maintenance works.
WARNING!
The milling machine may only be used with functional safety devices.
If you detect a failure in the safety devices or if they are detached, disconnect the milling
machine immediately!
All additional devices installed by the operator must be equipped with the prescribed
safety devices.
As the operating company, this is your responsibility!
 Safety devices on page 13
1.6 Qualification of personnel
1.6.1 Target group
This manual is addressed to
the operating companies,
the operators,
the maintenance personnel.
Therefore, the warning notes refer to both the operation and maintenance of the milling
machine.
WARNING!
Disconnect the milling machine always from the electrical power supply. This will prevent it from
being used by unauthorized persons. The qualifications of the personnel for the different tasks
are mentioned below:
Operator
The operator is instructed by the operating company about the assigned tasks and possible
risks in case of improper behaviour. Any tasks performed beyond operation in standard mode
may only be performed by an operator if they are described in these instructions and if the oper-
ator has been specifically trained to perform them by the operating company.
Electrical specialist
Due to their professional training, knowledge and experience as well as knowledge of respec-
tive standards and regulations, qualified electricians are able to perform work on the electrical

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system and recognise and avoid any possible dangers. Qualified electricians have been spe-
cially trained for the working environment, in which they are working and know the relevant
standards and regulations.
Qualified personnel
Due to their professional training, knowledge and experience as well as knowledge of relevant
regulations, qualified personnel are able to perform the assigned tasks and to independently
recognise and avoid any possible dangers.
Trained person
Trained persons have been instructed by the operating company regarding the assigned tasks
and any possible risks of improper behaviour.
INFORMATION
Everyone involved in the assembly, commissioning, operation and maintenance must
be duly qualified,
and strictly follow these operating instructions.
In the event of improper use
there may be a risk to personnel,
there may be a risk to the milling machine and other material values,
the correct function of the milling machine may be affected.
1.6.2 Authorized personnel
WARNING!
Inappropriate operation and maintenance of the machine constitutes a danger for the
personnel, objects and the environment.
Only authorized personnel may operate the machine!
Persons authorized to operate and maintain the machine should be technical personnel,
instructed and familiarized with the equipment by the operating company and the manufacturer.
1.6.3 Obligations of the operating company
The operator must instruct the personnel at least once a year regarding
all safety standards that apply to the machine,
the operation,
generally accepted engineering standards.
The operating company must also
check the personnel‘s knowledge level,
document the training/instruction,
require personnel to confirm participation in training/instruction by means of a signature,
check whether the personnel is working in a safe and risk-conscious manner and following
the operating instructions.
define and document the inspection deadlines for the machine in accordance with § 3 of the
Factory Safety Act and perform an operational risk analysis in accordance with § 6 of the
Work Safety Act.
1.6.4 Obligations of the operator
The operator must
have read and understood the operating manual,
be familiar with all safety devices and regulations,
be able to operate the machine.

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1.6.5 Additional requirements regarding the qualification
The following additional requirements apply for work on electrical components or equipment:
They may only be performed by a qualified electrician or person working under the instruc-
tions and supervision of a qualified electrician.
Before beginning work on electrical parts or equipment, the following measures must be taken
in the order listed below:
disconnect all poles.
secure against restarting,
Ensure that there is no voltage.
1.7 Operator positions
The operator’s position is in front of the milling machine.
1.8 Safety measures during operation
CAUTION!
Danger due to inhaling dust and mist that is hazardous to health.
Depending on the material to be processed and the additional resources used, dust or
mist may be generated that is hazardous to your health.
Make sure that the dust and mist generated that is hazardous to health are safely
vacuumed at their point of origin and extracted from the working area or filtered. To
accomplish this, use a suitable extraction unit.
CAUTION!
Risk of fire and explosion by using flammable materials or cooling lubricants.
Before processing inflammable materials (e.g. aluminium, magnesium) or using inflammable
auxiliary materials (e.g. chemical spirits) it is necessary to take additional preventive measures
in order to safely avoid health risks.
1.9 Safety devices
Use the milling machine only with properly functioning safety devices.
If there is a failure on the safety device or if it is not functioning for any reason, stop the milling
machine immediately.
It is your responsibility!
If a safety device has been deactivated or is defective, the milling machine can only be used
again if you
eliminate the cause of the defect,
have verified that there is no danger that could result for people or property.
WARNING!
If you bypass, remove or deactivate a safety device in any other way, you are
endangering yourself and other personnel working with the milling machine. The
possible consequences include:
Injuries due to components or workpieces flying off at high speed,
contact with rotating parts,
fatal electrocution.
WARNING!
The separation guard made available and delivered together with the machine is designed to
reduce the risk of workpieces or scraps from the tools or workpieces being expelled, but not to

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remove them completely. Always work carefully and observe the limits of your machining pro-
cess.
1.9.1 Emergency stop mushroom button
CAUTION!
The spindle continues to rotate for a
while depending on the mass
moment of inertia of the spindle and
the tool.
The emergency stop mushroom button
brings the machine to a standstill.
Turn the knob to the right to unlock and
release the emergency stop mushroom
button.
Img.1-1: Emergency stop mushroom button
CAUTION!
The emergency stop mushroom button may only be activated in an emergency. An
operational shut-down of the machine must not be executed using the emergency stop
mushroom button.
1.9.2 Lockable main switch
In the "0" position, the lockable main switch can be secured with a padlock against accidental or
non-authorised switching on.
When the main switch is turned off, the power supply is interrupted.
The exceptions are the areas marked by the pictogram in the adjacent margin.
WARNING!
Dangerous voltage even if the main switch is switched-off. The areas marked with the
pictogram in the margin may contain live voltage, even if the main switch is in the off
position.
1.9.3 Stored charge
WARNING!
The frequency converter and controls of the feed contain capacitors that remain charged to a
potentially lethal voltage after the machine has been disconnected from the power supply. If the
frequency controller was under power, it must be disconnected for at least 10 minutes from the
power supply. Before continuing to work, ensure there is no voltage. Normally, the capacitors
are discharged by an internal resistor. In certain unusual error conditions, it is possible that the
capacitors are not discharged or that the discharge is prevented by voltage in the adjacent
motor connection terminal. If the frequency converter has a technical defect, so that nothing is
shown on the display, it is possible that the capacitors are not discharged.
Emergency stop
Mushroom Switch

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1.9.4 Separation guard
Adjust the guard to the correct height
before you start working.
To do so, detach the clamping screw,
adjust the required height and re-tighten
the clamping screw.
A switch is integrated into the fixture of the
spindle protection which monitors that the
cover is closed.
INFORMATION
You cannot start the machine if the spindle
protection is not closed.
Img.1-2: Separation guard
1.10 Safety check
Check the milling machine at regular intervals.
Check all safety devices
before each operation,
once a week (with the machine in operation),
after all maintenance and repair work.
General check
Equipment Check OK
Guards Mounted, firmly bolted and not damaged
Signs,
Markers
Installed and legible
Functional check
Equipment Check OK
Emergency stop mushroom
button
When the emergency stop mushroom button is activated, the milling
machine must switch off. It is only possible to restart the machine if the
emergency stop mushroom button is unlocked and the ON switch is
activated.
Separation guard around the
drilling and milling spindle
The milling machine should only switch on when the guard is closed.

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1.11 Personal protective equipment
For certain work personal protective equipment is required.
Protect your face and your eyes: Wear a safety helmet with facial protection when performing
work where your face and eyes are exposed to hazards.
Wear protective gloves when handling pieces with sharp edges.
Wear safety shoes when you assemble, disassemble or transport heavy components.
Use ear protection if the noise level (emission) in the workplace exceeds 80 dB (A).
Before starting work make sure that the required personal protective equipment is available at
the work place.
CAUTION!
Dirty or contaminated personal protective equipment can cause illness. It must be
cleaned after each use and at least once a week.
1.12 For your own safety during operation
WARNING!
Before you activate the milling machine, ensure that it will neither endanger other
persons nor cause damage to equipment.
Avoid any unsafe work methods:
Make sure that no one is endangered by your work.
The instructions described in these operating instructions must be strictly observed during
assembly, operation, maintenance and repair.
Wear safety goggles.
Switch off the milling machine before you measure the workpiece.
If your concentration is reduced, for example, due to medications, do not work on the milling
machine.
Remain next to the milling machine until all movement is completely stopped.
Use the prescribed personal protective equipment. Be sure to wear close-fitting clothing
and, if necessary, a hairnet.
Do not wear gloves while drilling or milling.
Disconnect the safety plug from the outlet before changing tools.
Use appropriate equipment to remove drilling and milling chips.
Make sure that your work does not endanger anyone.
Safely and firmly clamp the workpiece before switching on the milling machine.
For the specific dangers when working with and at the milling machine, we provide descriptions
about specific dangers for these types of work.
1.13 Switching-off and securing the milling machine
Disconnect the mains plug before starting maintenance and repairs.
1.14 Using lifting equipment
WARNING!
The use of unstable lifting and load suspension equipment that might break under load
may cause severe injuries or even death.
Check to ensure that the lifting and load-suspension equipment are of sufficient load-
bearing capability and are in perfect condition.

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Observe the accident prevention regulations issued by your Employers Liability
Insurance Association or other supervisory authorities responsible for your company.
Fasten the loads properly.
Never walk under suspended loads!
1.15 Icons on the milling machine
Make sure that the command and warning symbols are legible.
1.16 Electrical system
Have the electrical equipment on the machine checked regularly. Immediately eliminate all
defects such as loose connections, defective wires, etc.
A second person must be present during work on live components to disconnect the power in
the event of an emergency. Immediately disconnect the milling machine if there are any anoma-
lies in the power supply!
Comply with the required inspection intervals in accordance with the factory safety directive,
operating equipment inspection.
The operating company responsible for the machine must ensure that the electrical systems
and operating equipment are inspected with regards to their proper condition, namely,
by a qualified electrician or under the supervision and direction of a qualified electrician,
prior to initial start-up and after modifications or repairs, prior to restarting the equipment
and at certain intervals.
The deadlines must be set so that arising, foreseeable defects can be detected in a timely man-
ner.
The relevant electro-technical rules must be followed during the inspection.
The inspection prior to initial operation is not required if the operator receives confirmation from
the manufacturer or installer that the electrical systems and operating equipment comply with
the accident prevention regulations.
Permanently installed electrical systems and operating equipment are considered constantly
monitored if they are continually serviced by qualified electricians and inspected by means of
measurements in the scope of operation (e.g. monitoring the insulation resistance).
1.17 Inspection deadlines
Define and document the inspection deadlines for the machine in accordance with § 3 of the
Factory Safety Act and perform an operational risk analysis in accordance with § 6 of the Work
Safety Act. Also use the inspection intervals in the maintenance section as reference values.

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2 Technical data
The following information represents the dimensions and indications of weight and the manu-
facturer‘s approved machine data.
2.1 Electrical connection MH25SV
Total connected load 230V / 50Hz / 2 KW
Milling spindle motor power 1.5 KW ; 10 Nm
2.2 Milling capacity
Size of end mill cutter max. [ mm] max. Ø25
Size of milling head max. [ mm] max. Ø50
2.3 Spindle seat
Spindle seat Taper JIS (MAS 403 BT30)
Pull stud BT30x45°
Maximum distance between spindle nose - milling
table [mm]
308
31,75
16,3 16,3
16,1
20
48,4 ± 0,2
17
46
13
M12
7
24
34
11
7
43
23
M12
45°

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2.4 Drill-mill head
Travel of Z axis [mm] 270
Throat [mm] 185
max. torque drive Z-axis 4.2 Nm
maximum movement speed Z-axis [ m/min ] 0.45
minimum movement speed Z-axis [ m/min ] 0.08
Scale on the Z-axis hand crank 4mm/rev - graduation 0.02mm
2.5 Cross table
Table length [mm] 620
Table width [mm] 180
max. Load on cross table 30 kg
T - slot size / distance / number 12mm / 50mm / 3
Travel of X axis [mm] 400
max. torque drive X-axis 2.2 Nm
maximum movement speed of X axis [ m/min ] 0.93
minimum movement speed of X axis [ m/min ] 0.15
Scale on the X axis hand crank 4mm/rev - graduation 0.02mm
Travel of Y axis [mm] 210
maximum movement speed of Y axis [ m/min ] 0.58
minimum movement speed of Y axis [ m/min ] 0.1
max. torque drive Y-axis 2.2 Nm
Scale on the Y-axis hand crank 4mm/rev - graduation 0.02mm
Distance spindle - table max. [mm] 300
2.6 Dimensions
 Dimensions on page 23
Total weight [kg] 200
2.7 Working area
Keep a work area of at least one metre around the
machine free for operation and maintenance.
2.8 Speeds
Rotation speed electronically adjustable [ min-1 ] 200 - 4000
+Z
+Y
+X

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CAUTION!
The machine operator should use hearing protection.
INFORMATION
This numerical value was measured on a new machine under the operating conditions specified
by the manufacturer. The noise behaviour of the machine might change depending on the age
and wear of the machine. Furthermore, the noise emission also depends on production engi-
neering factors, e.g. speed, material and clamping conditions.
2.9 Environmental conditions
Temperature 5-35 °C
Humidity 25 - 80%
2.10 Operating material
Bare steel parts Mobilgrease OGL 007 or,
Mobilux EP 004, acid-free oil, e.g. weapon oil, motor oil
2.11 Emissions
Maximum sound pressure level at 1 m distance from
the machine and 1.60 m above the ground.
77 to 79 dB(A) in idle running