Metallkraft MRA 2 User manual

MRA 2
Instruction Manual
MRA 2
MRA - SERIES
Manual Pipe notcher
MRA 3

2 MRA - Series | Version 1.07
Imprint
Product identification
Pipe notcher Item number
MRA 2 3772 2
MRA 3 3772 3
Manufacturer
Stürmer Maschinen GmbH
Dr.-Robert-Pfleger-Str. 26
D- 6103 Hallstadt
Fax: [phone] - 55
E-Mail: [email protected]
Internet: www.metallkraft.de
Original operating instructions
Original operating instructions
Edition: 03.0 .2021
Version: 1.07
Language: English
Author: MS
Indications regarding the copyright
Copyright © 2021 Stürmer Maschinen GmbH, Hallstadt,
Germany.
The contents of these operating instructions are the only
ones property of the company Stürmer Maschinen
GmbH.
Forwarding and copying of this document, utilization and
communication of its contents are prohibited unless ex-
pressly permitted. Infringements oblige you to pay dama-
ges.
Technical changes and errors reserved
Contents
1 Introduction ............................................. 3
1.1 Copyright ............................................................ 3
1.2 Costumer service................................................ 3
1.3 Limitation of liability............................................. 3
2 Safety ....................................................... 3
2.1 Symbol explanation ............................................ 3
2.2 Qualification of the staff ...................................... 4
2.3 Personal protective equipment ........................... 4
2.4 General safety instructions ................................. 5
2.5 Safety signs on the machine............................... 5
3 Intended use ............................................ 5
3.1 Misuse ................................................................ 5
3.2 Residual risks ..................................................... 5
4 echnical Data......................................... 6
4.1 Table................................................................... 6
4.2 Type plate........................................................... 6
5 ransport, Packaging and Storage........ 6
5.1 Delivery............................................................... 6
5.2 Packaging........................................................... 6
5.3 Storage ............................................................... 7
6 Description of the device ....................... 7
7 Set up ....................................................... 7
8 Operation ............................................... 8
8.1 Workflow............................................................. 8
9 Care, Maintenance and Repair............... 8
.1 Cleaning and lubrication of the machine............. 8
.2 Maintenance of the machine...............................
10 Disposal, Recycling of old Equipment 9
10.1 Decommission .................................................
10.2 Disposal of lubricants.......................................
11 Spare parts ............................................ 9
11.1 Ordering spare parts........................................
11.2 Spare part drawing ........................................ 10
12 Explanation.......................................... 11

Introduction
MRA - Series | Version 1.07 3
1 Introduction
With the purchase of the Manual Pipe notcher you have
made a good choice.
horoughly read the operating instructions before
commissioning the Manual Pipe notcher.
It informs you about the proper commissioning, the in-
tended use as well as the safe and efficient operation
and maintenance of your device.
The operating instructions are part of the Manual Pipe
notcher. It must always be stored at the place of use of
the device. In ad-dition, the local accident prevention re-
gulations and ge-neral safety regulations apply to the
area of application of the device.
The illustrations in these operating instructions serve the
general comprehension and may deviate from the actual
type.
1.1 Copyright
The contents of these instructions are copyright. Their
application is admissible in the frame the device utilisa-
tion. An application beyond the described application is
not allowed without written approval of the manufacturer.
For the protection of our products, we shall register tra-
demark, patent and design rights, as this is possible in
individual cases. We strongly oppose any infringement
of our intellectual property.
1.2 Costumer service
Please contact your dealer if you have any questions
about your machine or technical information. There you
will be happy to help with expert advice and information.
Germany:
Stürmer Maschinen GmbH
Dr.-Robert-Pfleger-Str. 26
D- 6103 Hallstadt
Repair-Service:
Fax: [phone]
E-Mail: [email protected]
Spare part orders:
Fax: [phone]
E-Mail: [email protected]
We are always interested in valuable experience and
knowledge gained from using the application which then
could be shared and be valuable to develop our products
even further.
1.3 Limitation of liability
All information and notes in these operating instructions
were summarised taking the applicable standards and
rules, the state-of-the-art and our long-term knowledge
and experiences into consideration.
In the following cases the manufacturer is not liable for
damages:
- Non-observance of the operating instructions,
- Inappropriate use,
- Use of untrained staff,
- Unauthorised modifications,
- Technical changes,
- Use of not allowed spare parts.
The actual scope of delivery may deviate from the expla-
nations and presentations described here in case of spe-
cial models, when using additional ordering options or
due to latest technical modifications.
The obligations agreed in the delivery contract, the gen-
eral terms and conditions as well as the delivery conditi-
ons of the manufacturer and the legal regulations at the
time of the conclusion of the contract are applicable.
2 Safety
This paragraph will give you an overview of all important
safety packages for the protection of persons as as well
as for the safe and undisturbed operation. Other taskba-
sed safety notes are included in the individual chapters.
2.1 Symbol explanation
Safety instructions
The safety notes in these operating instructions are high-
lighted by symbols. The safety notes are introduced by
signal words which express the concern of the risk.
DANGER!
This combination of symbol and signal words indi-cate
an imminently dangerous situation which may lead to
death or severe injuries if they are not avoi-ded.

4 MRA - Series | Version 1.07
Safety
ips and recommendations
It is necessary to observe the safety notes quoted in
these operating instructions in order to reduce the risks
for personal injuries and damages to property.
2.2 Qualification of the staff
This manual is intended for:
- the operators,
- the staff for maintenance work.
Only persons who are expected to carry out this work re-
liably are permitted for all work. Persons whose reactivity
z. As influenced by drugs, alcohol or drugs are not allo-
wed.
This manual identifies the qualifications of the persons li-
sted below for the different tasks:
Operator:
The operator has been instructed in a briefing by the
operator about the tasks assigned to him and possible
dangers of improper behavior. The operator may only
carry out tasks that go beyond normal operation if this is
specified in this operating manual and the operator has
expressly entrusted this to him.
Personnel:
Due to their technical training, knowledge and experi-
ence as well as knowledge of the relevant standards and
regulations, qualified personnel are in a position to carry
out the work assigned to them and to recognize potential
dangers independently and to avoid hazards.
Manufacturer:
Certain work may only be carried out by specialist per-
sonnel of the manufacturer. Other personnel are not au-
thorized to carry out this work. To carry out the work,
contact our customer service.
2.3 Personal protective equipment
The personal protective equipment serves to protect per-
sons against impairments of safety and health while wor-
king. The staff has to wear personal protective equip-
ment while performing different works on and with the
device which are indicated in the individual paragraphs
of these instructions.
The personal protective equipment is explained in the
following paragraph:
WARNING!
This combination of symbol and signal words indi-
cate a possibly dangerous situation which may lead
to death or severe injuries if they are not avoided.
CAU ION!
This combination of symbol and signal words indi-
cate a possibly dangerous situation which may lead
to minor or light injuries if they are not avoided.
NO E!
This combination of symbol and signal words indicate
a possibly dangerous situation which may lead to
property and environmental damages if they are not
avoided.
ips and recommendations
This symbol highlights useful tips and recommenda-
tions as well as information for an efficient and trou-
ble-free operation.
ips and recommendations
All persons involved in operation and maintenance
must
- have the required qualifications.
- Pay close attention to these operating instructions.
Eye protection
The goggles protect the eyes from flying parts and
liquid splashes.
Protective gloves
The protective gloves serve to protect the hands
against sharp components as well as against fric-
tion, abrasions or deep injuries.

Intended use
MRA - Series | Version 1.07 5
2.4 General safety instructions
Please note the following:
-Keep the machine and its working environment always
clean. Ensure adequate lighting.
- In principle, secure your workpiece when working with
suitable clamping devices. Make sure there is sufficient
contact surface.
- The notching machine shall not be modified in its de-
sign and shall not be used for purposes other than
those foreseen by the manufacturer.
- Never work under the influence of concentration-distur-
bing illnesses, fatigue, drugs, alcohol or medicines.
- Keep children and persons unfamiliar with the notching
machine away from their working environment.
- Eliminate disturbances that affect safety immediately.
- Before each use of the notching machine, make sure
that no parts are damaged. Damaged parts must be re-
placed immediately to avoid any danger.
- Do not overload the notching machine! You work better
and safer in the specified performance range.
- Only use original spare parts and accessories to avoid
possible dangers and accident risks.
2.5 Safety signs on the machine
The machine has safety markings and instructions (Fig.
1) which must be observed and followed.
Fig. 1: Safety labels
Damaged or missing safety symbols on the machine can
lead to malfunctions with personal injury and material da-
mage. The safety symbols attached to the machine must
not be removed.
Damaged safety symbols must be re-placed immedi-
ately. From the moment the signs are not immediately
recognizable and comprehensible, the ma-chine must be
taken out of service until the new signs are fitted.
3 Intended use
The notching machine is designed exclusively for un-
latching pipes made of steel, stainless steel, non-ferrous
metals (aluminum, copper, brass) with the diameters
specified in "Technical data" up to a maximum wall thick-
ness of 3 mm (for S235JR steel). The notching takes
place at a fixed angle ( 0 °).
The machine must not be operated in potentially explo-
sive environments.
Proper use also includes compliance with all information
in this manual. Any use beyond the intended use or
otherwise is considered misuse.
For structural and technical changes to the notching ma-
chine, the company Stürmer Maschinen GmbH assumes
no liability.
Claims of any kind due to damage due to improper use
are excluded.
3.1 Misuse
3.2 Residual risks
Even if all safety regulations are observed and the ma-
chine is used correctly, there are still residual risks listed
below:
- There is a risk of injury to the upper limbs (e.g., hands,
fingers).
- Danger from falling workpieces.
1234 5
WARNING!
Danger in case of misuse!
Misuse of the notching machine can lead to dange-
rous situations.
- Only operate the notching machine within the per-
formance range specified in the technical data.
- Never bypass or override the safety devices.
- Only operate the notching machine in a technically
perfect condition.

6 MRA - Series | Version 1.07
echnical Data
4 echnical Data
4.1 able
* Performance data based on material with tensile strength 400 N / mm²;
** for stainless steel (VA): factor 0.67
4.2 ype plate
Fig. 2: Type plate
5 ransport, Packaging and Sto-
rage
5.1 Delivery
Check the notching machine after delivery for visible
transport damage. If the notching machine is damaged, it
must be reported immediately to the transport company
or the dealer..
ransport
Improper transport of individual devices, packaged or
unpacked unsecured devices that are stacked on top of
or next to each other is prone to accidents and can
cause damage or malfunctions for which we do not pro-
vide any liability or guarantee.
Transport the scope of delivery secured against shifting
or tipping with an adequately dimensioned industrial
truck to the installation site.
General hazards during internal transport
The transport may only be carried out by authorized and
qualified persons. Act responsibly when transporting and
always consider the consequences. Refrain from daring
and risky actions.
Inclines and slopes are particularly dangerous (e.g.
driveways, ramps and the like). If it is unavoidable to
drive on such passages, special care is required.
Before starting the transport, check the transport route
for possible hazards, unevenness and imperfections as
well as sufficient strength and load-bearing capacity.
Hazardous areas, bumps and imperfections must be in-
spected prior to transport. The removal of hazardous
areas, bumps and obstructions at the time of transport by
other employees leads to considerable dangers.
Careful planning of internal transport is therefore essen-
tial.
5.2 Packaging
All packaging materials and packaging aids used in the not-
ching machine are recyclable and must always be recy-
cled.
Cardboard packaging components are shredded and sent
to the waste paper collection.
The foils are made of polyethylene (PE) and the upholstery
parts are made of polystyrene (PS). These materials are to
be handed in to a recycling center or to the responsible wa-
ste disposal company.
echnical Data MRA 2 MRA 3
Pipe diameter*
[mm]
28 / 34 / 43 50 / 61
Max. Wall thick-
ness*
construction steel
aluminium
copper
brass
stainless steel**
3 mm
4,5 mm
4 mm
4 mm
2 mm
3 mm
4,5 mm
4 mm
4 mm
2 mm
Notcher dimensi-
ons without lever
LxBxH [mm]
1 5x160x80 205x160x105
Notcher dimensi-
ons with lever
LxBxH [mm]
1060x160x80 10 0x160x105
Weight 8 kg 15 kg
NO E!
Protect the Manual Pipe notcher from moisture.
CAU ION!
Risk of injury from devices fall over and falling down-
from forklifts, pallet trucks or transport vehicles.
Only use means of transport and load attachment
means that can take the total weight.
CAU ION: RISK OF OPPING OVER
The device may not be lifted more than 2cm unsecu-
red.
Employees must be outside the danger zone, the
reach of the load.
Warn employees and make employees aware of the
risk.

Description of the device
MRA - Series | Version 1.07 7
5.3 Storage
Store the notching machine thoroughly cleaned in a dry,
clean and frost-free environment.
Apply protective oil to the tool to prevent it from rusting.
6 Description of the device
Illustrations in this operating manual serve the gene-
ral understanding and may deviate from the actual
design.
Fig. 3: Description of the device MRA 2
1 Release lever
2 Housings
3 Notch opening for 43 mm diameter pipes
4 Notching knives
5 Mounting hole
7 Set up
In order to achieve a good function of the notching ma-
chine and a long service life, the site should meet the
following criteria.
- The notching machine may only be set up and ope-
rated in dry and freezing conditions.
- The substrate must be suitable for the work. Pay
attention to carrying capacity and evenness of the
subsoil.
- Protruding parts, such as support tables, etc., are
to be secured if necessary by on-site measures so
that persons are not endangered.
- Provide enough space for operators and material
handling.
- Ensure adequate lighting (minimum value: 300 lux)
1
2
4
5
3
DANGER!
Before setting up the machine, check the load-bea-
ring capacity of the substrate. The installation space
must be able to bear the weight of the machine, the
workpieces and the processing pressure.
NO E!
Clean the notching machine before first use
- For this purpose use conventional solvents, for. B.
Petroleum.
- No water, no nitrolic solvents or similar use!
After the notching machine has been cleaned, all
bare parts must be lightly oiled. For this only resin u.
use acid-free machine oil!
ips and recommendations
For a secure footing, it is advisable to fasten the not-
ching machine on a firm, stable and level surface
through the holes in the machine base.

8 MRA - Series | Version 1.07
Operation
8 Operation
8.1 Workflow
Step 1: Fix the notching machine horizontally or vertically
on a suitable work table using the holes.
Step 2: Open the tool with the release lever and insert
the pipe end into the appropriate opening.
Step 3: Make the cut by operating the release lever and
remove the workpiece.
9 Care, Maintenance and Repair
9.1 Cleaning and lubrication of the ma-
chine
The notching machine should always be cleaned after
each use.
Sweep or wipe all open machine parts with a broom or
cloth at regular intervals.
Treat bare metallic work surfaces with anti-rust spray.
Lubricate all moving parts and bearings daily before star-
ting work.
WARNING!
Risk of injury!
There is a risk of injury to the operator and other per-
sons if they do not adhere to the following rules.
- The operator may not work while under the influ-
ence of alcohol, drugs or medication.
- The operator must not work when he is tired or suf-
fering from concentration-impairing illnesses.
- The notching machine may only be operated by one
person. Other persons must keep away from the
work area during operation.
DANGER!
Risk of injury!
When working on the notching machine,
- is to wear tight-fitting clothing.
- no jewelry may be worn.
- Do not wear scarves, ties or similar.
- For long hair, a hairnet must be worn.
Wear safety glasses!
Wear safety gloves
A EN ION!
Risk of crushing!
When working with the notching machine can cause
bruising of the upper limbs.
DANGER!
Always only one pipe, never work on several pipes at
the same time.
Before starting work, check that the knives of the not-
ching machine are sharp and there are no chips in
the tool.
ips and recommendations
Do some test cuts before you start production!
ips and recommendations
To ensure that the notching machine is always in
good working condition, regular care and main-
tenance work must be carried out.
WARNING!
Danger due to insufficient qualifica-
tion of persons!
Insufficiently qualified persons can not assess the
risks involved in repairing the notching machine and
expose themselves and others to the risk of serious
injury.
All maintenance work should only be carried out by
qualified persons.
DANGER!
Never use solvents to clean plastic parts or painted
surfaces. A surface release and consequential
damage may occur.
Wearing safety gloves!

Disposal, Recycling of old equipment
MRA - Series | Version 1.07
9.2 Maintenance of the machine
If the notching machine does not work properly, contact
a dealer or our customer service. The contact details can
be found in chapter 1.2 Customer Service.
10 Disposal, Recycling of old
equipment
In the interests of the environment, care must be taken to
ensure that all components of the machine are disposed
of in the proper and approved way.
10.1 Decommission
Disused devices must be taken out of service immedi-
ately in order to prevent later misuse and endangering
the environment or people.
- If necessary, disassemble the machine into manage-
able and usable components and components.
- Feed the machine components to the appropriate dis-
posal channels.
10.2 Disposal of lubricants
The disposal instructions for the lubricants used are pro-
vided by the lubricant manufacturer. If necessary, ask for
the productspecific data sheets.
11 Spare parts
11.1 Ordering spare parts
The spare parts can be obtained from the dealer or di-
rectly from the manufacturer. The contact details are in
chapter 1.2 Customer Service.
Specify the following key data when ordering spare
parts:
- Device type
- Serial number
- Lot
- Description
- Desired shipping method (post, freight, sea, air, ex-
press)
- Delivery address
Spare parts orders without above given information can
not be considered. If the shipping method is missing,
shipping will be at the discretion of the supplier.
Information on the device type, article number and year
of manufacture can be found on the type plate, which is
attached to the device.
Example
The eccentric for the Pipe notcher MRA 2 must be or-
dered. The eccentric has the number 8 in the spare parts
drawing 1.
By ordering spare parts, send a copy of the spare parts
drawing (1) with the marked part (eccentric) and marked
positon number (8) to the dealer or spare parts depart-
ment and provide the following information:
- Type of device: Pipe notcher MRA 2
- Item number: 3772992
- Drawing number:
- Position number: 8
DANGER!
- Maintenance and repair work may only be carried
out by qualified personnel.
- Only use original spare parts.
NO E!
Using non-approved spare parts voids the manufactu-
rer's warranty
DANGER!
Risk of injury due to incorrect spare
parts!
The use of incorrect or faulty replacement parts can
be dangerous to the operator and cause damage and
malfunction.
- Only use original spare parts from the manufacturer
or replacement parts approved by the manufacturer.
- In case of doubt, always contact the manufacturer.

10 MRA - Series | Version 1.07
Spare parts
11.2 Spare part drawing
Abb. 4:
Fig. 4
FIG. 4 Spare part drawing MRA 2 / MRA 3

Explanation
MRA - Series | Version 1.07 11
Manufacturer/distributor: Stürmer Maschinen GmbH
Dr.-Robert-Pfleger-Starße 26
D- 6103 Hallstadt
We hereby declare that the machine described below, due to its design and construction as well as in the version we
have placed on the market, complies with the relevant basic health and safety requirements.
A declaration of conformity according to Machinery Directive 2006/42 / EC Annex 1 does not require this machine. In the
event of a modification of the machine not agreed with us, this declaration shall lose its validity.
Product group: Metallkraft® Metal working machines
ype of machine: Manuelle Pipe notcher
Designation of the machine *: MRA 2
MRA 3
Item number *: 3772 2
3772 3
Serial number *: ____________________
Year of construction *: 20____
* please fill in according to the information on the type plate
Responsible for documentation: Kilian Stürmer, Stürmer Maschinen GmbH,
Dr.-Robert-Pfleger-Str. 26, D- 6103 Hallstadt
Hallstadt, 1 .12.2014
______________________
Kilian Stürmer
Manager
12 Explanation

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