Huvema HU 350 DC User manual

HU 350 DC / HU 420 SAI
SEMI-AUTO BAND SAWING MACHINE

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Caution:
Please read and understand the manual, warnings and risks to avoid injuries and
damage of machine. This manual consists of the necessary information and
instructions how to operate the machine and maintaining, adjustments and repairing
the machine. We firmly advice not to alter or make changes to the machine.
Improper use or changes made to the machine is not allowed. We are not
responsible of damages or injuries that occur doing so.
The descriptions in this manual is are under reservation of typing mistakes and changes

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TABLE OF CONTENT
•Cover sheet
•Caution page 1
•Table of content page 2
•General and preface page 3
•Noise level of the machine page 4
•Health and Safety requirements page 7
•Warranty terms page 8
•Technical details page 10
•Installation and minimum requirements page 11
•Reloading and transport page 12
•Optional accessories and tools page 16
•Selection of the saw blade page 18
•Intended use and contraindications page 23
•Description of the machine page 29
•Preparation before use page 30
•Blade tension page 35
•Function and description of controls page 36
•Settings page 48
•Maintenance of the machine page 52
•Breaking of the saw blade page 57
•Entering of the machine page 58
•Disposal of residues used or generated page 58
•Fault detection page 58
•Disposal of the machine page 64
•Spare parts list hydraulic and hydraulic diagram page 64
•Exploded view drawing page 65
•Spare parts list page 76

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GENERAL:
First our gratitude purchasing our band sawing machine.
Models: HU 350 DC & HU 420 SAI
Although both models are similar there are certain passages are specifically for one
of the models. Options or differences will be clearly stated throughout the manual. This
operating, instruction and maintenance manual provides the necessary information to make the
utmost of the life span of your machine.
We have put much effort composing this manual and understand some imperfections in this
manual may emerge. The manual is always subject for improvements and we appreciate your
feedback if you have any.
PREFACE:
Our products are continuously subject to future changes and development. Please keep this
manual with the machine for the entire life of the machine. Refer to the manual along with the
serial number and year of manufacture, when contacting customer support for service. The serial
number and year of manufacture is located on the side of the machine (machine plate).
Reading the manual carefully ensures you to fully understand the purpose and how to operate,
maintain the machine for a its lifetime. Only use saw blades that are suitable for this machine as
well as appropriate coolant (emulsion), consult your supplier if you have any doubts.
Our machine is constructed and design according the European Directive and related Standards.

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Noise level of the machine:
The machines noise level is preformed during various operating conditions. Meaning, idle
running, hydraulic unit, various movements of the machine and during cutting.
We conducted our measurement at 3 points; left side / front / right side of the machine. Each
measurement is expressed in dB(A). Measure position is 1 meter from the machine. During the
cut of solid steel (St12 = ~C20 80mm diam) the average measured sound level was 75 dB(A). The
conditions of the cut were at suitable rotation speed, type saw blade, cutting fluid and descent
of the saw arm. The sound level during idle running was 63dB(A). However, cutting other
material types and profiles, may have other values. We recommend using sound barrier when
sound levels exceed 80dB(A) and it’s mandatory when the sound level exceeds 85dB(A).
The use of wrong blades, material (profile) and other values that decreases the quality of
cutting will increase the sound level significant. These unfavorable conditions of operating are
not in compliance of the European Directive 89/392 and 86/188/EG
Measurements of both machines mentioned in the manual differs +/- 2dB(A)

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3. HEALTH ADDITIONAL REQUIREMENTS FOR SAFETY
Operation chattering generated .Before highlighted all must fulfill the
instructions of the value of the machine during prescribed the fourth item
of Article 2.2, Annex I of the European Directive 89/392 with the following
changes need some more health and safety requirements, as in the models
from operator be done manually in all phases of work, vibrate. this
machine does not generate more than the value of 2.5 m/s2 lying will be
enhanced by its dimensions and its position (clamping) during cutting
vibrations generated can also depend on the material, work. this value,
hurts the health of the staff and the good success of using, wrong tools
caused a significant change the use.
the machine under unfavorable conditions or machines standardize. The
applicable here applied measurement process follows the general, for this
type

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4. WARRANTY
Specialized accessories for customers who as part of a commercial or
professional
4.1
The manufacturer warrants that this product has been subjected to strict
control, and production materials used are error-free. This warranty applies
to the User 12 months from the date of the delivery or the distributor /
dealer 18 Months.
If the manufacturer during the warranty period reported damage of this
type will be replaced the parts that turn out to be damaged.
If the manufacturer will not be able to have a component within a
reasonable time to replace appropriate arrangements are made,
The above warranty does not cover damage caused by accident, misuse,
Use of the machine, improper service, any changes or its operation in an
environment corresponding instructions are not caused.

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4.2
The manufacturer provides no other written or oral, explicit
or implied warranties in relation to its products and provides no implicit
Warranties with respect to its merchantability or fitness for particular Uses
which were not provided in the agreement So the above limitations may, in
countries where a Product provided warranty period may not apply. Not be
limited However, each is conceived guarantee for a period of 12 months from
the date the delivery note limited. !
4.3
The attached to the machine serial number is for the warranty Customer
service after the sale and for their identification is essential; on the basis of
This number can also be the date of manufacture can be determined
Any changes to the machine, especially at the GUARDS
relieves the manufacturer of all liability. The warranty parts are excluded, the
rapid and ongoing
The warranty parts are excluded, and ongoing subject to wear (eg, belts,
seals, oils, saw blades, etc.).

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5. TECHNICEL DETAILS
5.1
EMC - Danger from electromagnetic fields
The user is responsible for installation and use of this machine according
to this manual!
manuals described responsible. This equipment complies with the safety
89/336/EEC, 92/31/EEC and 93/68/EEC Electromagnetic Compatibility
EMC) and the technical requirements EN 61000-6-2:2005, EN 61000-6-
4:2007+A1:2011 and is intended for use in industrial, but not provided in
residential buildings

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6. INSTALLATION, MINIMUN REQUIREMENT
The connection to a public power supply (instead of
Power network) MAY cause interference or interference during operation
We advise you to avoid the proximity with the following
elements:
- Signal, control and telephone cables,
- Radio and television stations and receivers
- The supply cable must be as short as possible and must not be twisted or
be involved.
-The flaps, covers and the frame must be closed when the
system is in operation.no changes at will, unless it is to make adjustments
or substitutions are to be specified by the manufacturer.
-The regular Perform maintenance correctly.

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7. RELOADING AND TRANSPORT
Only the systems listed below may be used for the transportation of the
be used. In each case must be secured that the transport and
Lifting means are enough to withstand the weight of the machine with its
Packaging (500 kg) to wear.
ATTENTION
The personnel responsible for the handling of the load should wear
protective gloves.
ATTENTION
Before lifting or moving the machine or its parts must
Work area to be evacuated. There must also be a sufficient safety
distance provided to persons or property in the maneuver area to avoid
On specific request of the customer special packaging can be used
FOR ALL WORK TO MOVE THE MACHINE MUST
OBSERVED FOLLOWING PRINCIPLES ARE:
Prior to the movement, a suitable means for the load to be selected. the
Rated load must be higher than the load in question.
In the selection and use of extra lifting equipment such as ropes,
Chains or belts must be particularly their final geometry during

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into account the lifting process and the resulting effective Capacity
When the lifting chains should come with machine parts in contact shall
Nylon straps used or the ropes or chains must jute.
Adequately clean rag be wrapped. Especially when you hit
and the movement is to make sure that worked or painted
surfaces are not damaged.
. The maneuvers must always be gradual to sudden movements, collisions
and avoid dangerous situations for people and things.
. The person responsible for the work must all legal requirements and
regulations on accident prevention and industrial safety, observe that
both the nationally and also apply in the local and operational framework
Transport with free machine
This kind of transport is normally for the delivery of the machines
CLOSED VESSELS, applied. In this system the Machine using the
holes on the base for this purpose machinery are prepared, mounted on
wooden boards, to protect their parts with thermoplastic material wrapped
and loaded on the truck, there must up with ropes. Fastened be, so they
do not shift.
To lift the machine you need a forklift, front of the machine, forks with
more than 1.5 meters long.

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Man, the machine can lift with a rope (see Fig.) You have to watch
that the machine is well balanced.
CAUTION: When the machine is loaded on an open truck, they must be
a tarp to be covered.
MAN SHOULD NEVER SAW ARM THAN LAST
The saw arm must always be at the bottom for transport.
Transport in wooden box or cage
(upon request - extra cost)
The machine is wrapped in thermoplastic material to protect their
constituents.
Then it is packed in a wooden box or cage to them and against shocks
Weather influences to preserve.
To raise a forklift is used (see Figure 1).
The machine is mounted in a wooden box or cage with screws so that
so that they do not move during transport.

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The saw arm has blocked in completely lowered position at subsequent
displacements of the machine must be taken into account: the ends of the
lifting means are hooked; you have free to use some versions are attached
to the four corners of the support column plates.

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8 OPTINAL INSTALLATION OF ACCESSORIES
8.1 The short description of the installation instructions which are Supplied
with!
Supply and discharge roller conveyor
To install these components correctly, the machine has been leveled and
be attached. The stability shall be proven (we recommend the supply side
(left) for each 2m 4mm higher to install to the return of the (To favor
coolant)

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8.2 The spray clean system
Minimal lubrication
The minimal lubrication is used specifically for pipes and profiles with the minimum
lubricating device to the sawing, which is installed, the traditional coolant emulsion
can be almost completely eliminated.
The processed material is so clean and spread or waste of emulsion and water is
avoided. So, it makes a contribution to the conservation of non-renewable energy
sources. It is only during the Cutting phase in operation. The selector for the
lubrication is side of the control box.
It consists of a 2 micro holes for the distribution of the fluid on the band saw a
container with micro feeder for the regulation of sprayed amount of oil, and a
controller for the air volume. In addition, with switch the device CPL .and be

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switched off.
9. SELECTION THE BANDSAW BLADE
In this section the relationship between saw blade and will to be
cutting material explains.
To full power of the machine it is useful to apply the correct species
and the possible limitations of the tools used to understand.
The saw blade to be used must have the following dimensions (in mm):
Max length: 3840, Min Length: 3800, Standard length: 3820mm
Wild: 27 mm for YCM-350SA
Wild: 34 mm for YCM-420SA
Thickness: 0,9 mm for YCM-350SA
Thickness: 1.1 mm for YCM-420SA
Also, the tape type is very important usually bimetallic strips used as
M42 or SVGLB (which also profiles for most materials, are suitable and are
available with almost all teeth), M51 or SHL (suitable for large stainless
steel and hard steel sections, available with tooth pitch 3/4)
The tooth hardness - and also its fragility - takes of material M42 to M51
There are also saw bands with a coating of hard metal or diamond dust.
To ensure a flawless cutting the DENTAL DIVISION must (t) or tooth number
PER INCH (z) are fixed. In general, the saw band must be provided:

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* with closely spaced teeth for cutting thin materials such as tubes and
profiles
* with a wide tooth spacing for cutting solid material or work pieces,
*which a long section of channel (e.g. the centerpiece of a "U" profile) or
softer materials such as aluminum, copper, soft bronze.
Taking into account these principles, most of the machining errors a
prevented achieved good penetration and given the necessary space for
the chip
With the simultaneous cutting of Workpieces are these like a single piece
considered and their total length taken into account.
The accompanying table gives instructions for a right choice, However, from
Operator based on their own experience can be modified.
Although there are saw blades with regular tooth spacing can be obtained
through Saw blades with variable tooth spacing.
(Tooth groups with different distance from each other) is used to reduce
the vibration and noise generation and improve final product and the
chipping.

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Recommended
Gearing
Full
material
Diameter
(mm)
Large
Wall
thickne
ss
(mm)
Profile
Wall
thickness
(mm)
Bundle
section
length
Variable Teeth
14 M42
1,5max
10/14 M42
1 bis 2
8/12 M42
20max
2 bis 4
6/10M42 40max 4 bis 8
5/8 or 5/7 m42 30 bis 80 6 bis 12 50 bis 100
4/6 M42 40 bis 90 10 bis 20 70 bis 120
3/4 M42 or M51 70 bis 150 15 bis 25 100 bis 200
2/3 M42oder M51
120 bis 230
Ober25
120 bis 300
The following applications relate to the cutting of solid material with
a diameter of 80 mm with a sawing machine with default properties.
If the material is small, you can increase this parameter, where in the
type the saw and installed accessories may be taken into account, e.g.
ESC (Electronic Speed Control).
In contrast, if the material is larger, you have to reduce these parameters
wherein the type of the saw and installed accessories may be taken into
account, for example, ESC (Electronic Speed Control).

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MATERIAL
ALLOY
ASTM NO.
BAND SPEED
FT./MIN
M/MIN
Copper
Alloy
173,932
314
96
330,365
284
87
623,624
264
81
230,260,272
244
74
280,264,632,655
244
74
101,102,110,122,172
234
71
1751,182,220,510
234
71
625,706,715,934
234
71
630
229
70
811
214
65
Carbon
Steel
1117
339
103
1137
289
88
1141,1144
279
85
1141 HI STRESS
279
85
1030
329
100
Carbon
Steel
1008, 1015, 1020, 1025
319
97
1035
309
94
1018, 1021, 1022
299
91
1026, 1513
299
91
A36(SHAPES),1040
269
82
1042,1541
249
76
1044,1045
219
67
1060
199
61
1095
184
56
Ni-Cr-Mo
Alloy Steel
8615, 8620, 8622
239
73
4340, E4340, 8630
219
67
8640
199
61
E9310
174
53
Tool Steel
A-6
199
61
A-2
179
55
A-10
159
49
D-2
90
27
H-11, H-12, H-13
189
58
Stainless
Steel
420
189
58
430
149
46
410,502
140
43
414
115
35
431
95
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