IMET BS400 GH Instructions For Use Manual

TRADUCTION OF THE ORIGINAL INSTRUCTIONS FOR USE

BS350 GH, BS400 GH autocut ED.2010 rev.01

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IMET Spa

Loc. Tre Fontane - Cisano Bergamasco

Tel. 035/4387911 - Fax. 035/787066

Web site: www.imetsaws.com

E -mail: imet@imetsaws.com

Band Sawing Machine

BS 350 GH , BS400 GH -autocut-

INSTRUCTIONS FOR USE

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We recommend to read carefully the information here included in order to install, use and maintain correctly

and safely this machine.

Please refer always to this instruction manual in case of assistance service need (in Italy : +39 035 4387818

or +39 035 4397828) and keep it carefully for all the machine life. The reference number is shown on the

cover.

A consequence of the continuous improvement of the product is that some images/descriptions here included

could not correspond to the improved features of the machines.

Your kind collaboration would help us in intevening asap.

In the enclosed Compliance Declaration you will find the Safety and Reference Norms applied during the

planning and construction of this machine.

The choice and the use of the parts have been made by considering the conditions of use and the long

machine life.

The identification plate, with the serial number, is fixed on the front right angle of the base or on a side of

control box.

1.1 - ATTACHED DOCUMENT FOR E.M.C. ( INDUSTRIAL ENVIRONMENT)

The user is responsible for the installation and use of this machine in compliance with the manufacturer's

instructions shown in this manual. This equipment meets the protection requirements in accordance with the

Directives 2006/42/EEC, 2004/108/CE for Electromagnetic Compatibility (EMC). In particular, it follows the

technical guidelines of the Directives EN55011, EN50082-2 and it has been made for industrial and not for

household use.

In the event of electromagnetic interferences the user is responsible for solving the problem with the help of

the technical assistance by the manufacturer. Before installing the machine the user must take into account

possible electromagnetic problems of the working area. In particular, we suggest to install the machine away

from:

-signalling, control and telephone cables;

-radio-television transmitters and receivers;

-computers or controlling and measuring instrument;

-safety and protection devices.

The electric supply cable must be kept as short as possible, without any twists.

Covers, doors and the frame must be suitably closed when the saw is operating.

Under no circumstances the machine must be modified except for adjustments and changes specifically

approved by the manufacturer. Follow the maintenance schedule.

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===========================================================================

CE DECLARATION OF CONFORMITY (encl. II A DIR 2006/42/CE) / 01

===========================================================================

THE MANUFACTURER : IMET S.p.A

Località Tre Fontane

24034 - CISANO BERGAMASCO –BG- ITALIA

HEREBY DECLARES THAT

in designing and manufacturing the machine described here below , we have considered the most important

requirements of safety and health dictated by the European Directives of the Machine Security. Remember

that this declaration loses its validity if machine is modified without our agreement.

Trade name BAND SAWING MACHINE FOR METALS

Code / Model / Type

Manufacturing year

Serial number

IT IS IN COMPLIANCE WITH THE DIRECTIVES

DIRECTIVE 2006/42/CE OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF THE

17TH/05/2006 REGARDING THE MACHINES AND THAT MODIFIES THE DIRECTIVE 95/16/CE;

DIRECTIVE 2004/108/CE OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF THE

15/12/04 REGARDING THE ELECTROMAGNETIC COMPATIBILITY -EMC-

DIRECTIVE 2006/95/CE OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF THE

12/12/06 REGARDING ELECTRICAL EQUIPMENT FOR USE OF LOW VOLTAGE -LVD-

HARMONIZED STANDARDS REFERENCE EN.12100-1,EN12100-2; EN 55011, EN50082-2, EN

13898, EN 60204 LEGISLATIVE DECREE N.17 OF THE 27TH OF JANUARY 2010.

AND AUTHORIZING THE PERSON LISTED BELOW TO ISSUE THE TECHNICAL FILE.

Date : 01.01.2010

The signatory identification The manager

Angelo Meroni

--------------------------------------------------------------------------------------------------------------------------

File : Machine no. Delivery note no Dated

…………………….

ORIGINAL WITHIN THE MACHINE...

………………..

INSTRUCTIONS FOR USE

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INSTRUCTIONS FOR USE

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3 - MACHINE NOISE

The noise level of the working area - given the conditions described below - is determined by the

simultaneous working of several parts of the machine in motion (according to the working cycle), in addition

to the tool when cutting the material.

The noise level is detected in different moments, corresponding to different working phases. The proper

device is placed about 1 meter near the machine and about 1,60 m above the floor. The results of

each test is in dBA and they are the average of 3 tests made from the left side, opposite side and

right side.

For any machines the working conditions are the following:

When idle, at the maximum blade speed: dBA 63

During the cut, at a suited blade speed, cutting solid steel (St12=≈C20, 80mm diameter): dBA 75

(tolerance ± 2dB).

In the standard production the test is made on a machine like this, in compliance with E.C. safety norms

2006/42/CE and EN13898. Using the saw in bad conditions or using wrong tools causes significant

alterations of these tests and it jeopardizes the health of the staff and the good results of the work. Useful is

the European Guideline 2003/10/CE.

The noise depends mostly on the cutting material, on its size and on the clamping. Considering that the

above mentioned decibels could be exceeded, we recommend the operator to use personal protections

(headsets, plugs, and so on) when working for a long time with high noise levels.

 3.1 - ADDITIONAL HEALTH AND SAFETY REQUIREMENTS

The machines manually controlled by an operator during all work phases must comply to further health and

safety requirements as specified by article 2.2 of the Annexed I of the European Directive 2006/42/CE and

following integrations. In particular, the level of the machine vibrations when working must be clearly specified

in the instructions.

This machine does not produce vibrations higher than 2.5 m/s2

The measurement procedure is in compliance with the general norms applied to this type of machinery.

As in the previous paragraph, using the machine in unsuitable conditions or using the wrong tools

can cause changes affecting this value, causing a risk to the health of the working staff as well as the

quality of the production. Useful is the European Guideline 2002/44/CE.

Vibrations produced during the cut may be amplified by the material, by its dimensions and its

positioning/clamping in the vice.

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4 - GUARANTEE NORMS

I.ME.T. offers a wide range of sawing machines and accessories, destined to who buys/uses them as part of

a commercial or professional activity.

The manufacturer grants that this product has been strongly controlled and that there are no defects in the

used and working materials for a period of 12 months from the date of the delivery note.

The italian law D.L. n° 24 issued on 02/02/2002 and valid since 23/03/2002 (which carries out the European

Directive 1999/44/CE) indicates different terms only for convenience products for private use.

If the user points out some defects to the manufacturer during the warranty time, the manufacturer will

replace the components that are considered defected.

In case of reparation of the machine during the warranty time the shipment will be accepted only if the

delivery is Free Destiny (that is the freight costs are supported by the owner of the machine), and the return

of the machine to the customer is considered EX WORKS.

If the manufacturer is not able to replace a component within an acceptable time, both companies

(manufacturer and user) will reach an agreement for satisfying completely the needs of the user.

The a.m. warranty is not valid in case of accidental damages, or defects provoked by a wrong use of the

machine or maintenance, by variations made on the machine, or by the use of the machine in a place not

corresponding to the indicated environmental specifications.

4.1 - The manufacturer does not offer further warranties, written or spoken, explicit or implicit of its products

and does not offer implicit warranties on salaebility or adequacy for particular uses not foreseen by the

agreement.

The a.m. limitations and exclusions can also be not applicable in Countries, where there are no implicit limits

of warranty time on the products. Anyway each implicit warranty is limited to a time of 12 months from the

date of the delivery note.

4.2 - The date of manufacture, deducible from the serial number placed on the machine, is a very necessary

reference for the warranty, for the assistance after-sale and for the identification of the product.

Each tampering on the products, expecially the installation of safety devices, will relieve the manufacturer of

any kind of responsability.

The parts most subject to rapid and continuous wear are not included in the warranty (for example:

transmission belts, gaskets, oils, blades, and so on).

For the electrical, electronic and hydraulic equipments and for the other equipments having its own

individuality (of which there is the possibility to know the name of the constructor), the manufacturer gives to

the user the same warranty received by the primary constructor of these parts.

4.3 - The components replaced during the assistance operated by the manufacturer have a warranty of 6

months from the installation date indicated on the Technical Service paper, one copy of which is given to the

owner.

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3

5 - SUMMARY pag.

1- PREMESSA 2

2 – CONFORMITY DECLARATION 3

3 – AIR NOISE 4

4 – GUARANTEE NORMS 5

5 – Index 6

6 – Technical characteristics 7

7 – Installation – minimum requirements 9

8 – Moving and transit 8

9 – Fittings/optionals 10

10 – Blade choice 12

11 – Foreseen use and controindications 14

12 – Machine description 17

13 – Work preparation 18

14 – Band tensioning 19

15 – Functioning 20

16 – Regulations 23

17 – Maintenance – for the user 27

18 – Band running-in 28

19 – Machine running-in 28

20 – Draining of used/produced substances 29

21 – Trouble-shooting 29

22 – Machine demolition 31

23 – Spare parts 32

24 – Maintenance – for qualified technicians 33

Electrical drawings

Hydraulic diagram

Spare Parts drawings

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6 – TECHNICAL CHARACTERISTICS BS 350 GH

- Autocut bandsaw, mitre cutting from 0° to 60° left and from 0° to 45° right

- Easy stops at 0°, 45°, 60° left and 45° right

- Adjustment of the blade tension from the front side of the sawframe, checked by an end-stroke

- Blade tension 1900 kg/cm², blade guides with hard metal pads

- Steel sawframe with tubular section, pulleys 360mm diameter

- Selector for quick motion of the sawframe toward the material, sawframe then lowers automatically

with adjustable down-feed rate and the blade stops at the end of the cut

- Manual lift of the sawframe after the cut

- Connection for loading table equipped with roller, 400mm wide

- Slide on the unloading side which can be transformed in connection for unloading table

- Adjustable bar stop, blade-cleaning brush, bi-metal blade

- Main switch with minimum tension coil, emergency button, thermic and magnetic motor

protection from 4 to 6,3 Amps, motor absorption device from 0 to 5 Amps gauge

- Floor stand with inside room and door, removable chip collector, coolant tank and electro-pump,

hydraulic unit with oil.

- Tools and user’s book

- In compliance with CEE Safety and Electro-magnetic Compatibility Norms (EMC)

- Electrics according to the Norms EN60204-1, EN55011, EN50082-2

The technical specifications indicated in the following tables give a general evaluation of the machine and of

its performances.

If not differently indicated all data reported in this manual refer to the standard version, suitable

for working at 400 V / 50 Hz THREEPHASE.

= cutting capacity ( max. dimensions on PROFILES & TUBES)

= BLADE DIMENSIONS = WEIGHT =VICE OPENING

= motor choice and blade speeds (at 50 Hz);

mm.

Kw

Mt/min

mm.

Kg.

mm.

3370x27x0,9

1.5-1,8

3~

37-74

350

606

305

250

350x200

250

230

230x200

250

230

230x200

1.5

3~

18

/100

(ESC)

350

611

175

155

170x100

Dimensions

(mm)

B

Width

L

Lenght

H

Heigth

H min.

Worktable

In use

1480

1700

1900

940

for transport

1470

1700

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6A – TECHNICAL CHARACTERISTICS BS 4000 GH

- Autocut bandsaw, mitre cutting from 0° to 60° left and from 0° to 45° right

- Easy stops at 0°, 45°, 60° left and 45° right

- Adjustment of the blade tension from the front side of the sawframe, checked by an end-stroke

- Blade tension 2000 kg/cm², blade guides with hard metal pads

- Steel sawframe with tubular section, pulleys 360mm diameter

- Selector for quick motion of the sawframe toward the material, sawframe then lowers automatically

with adjustable down-feed rate and the blade stops at the end of the cut

- Manual lift of the sawframe after the cut

- Connection for loading table equipped with roller, 450mm wide

- Slide on the unloading side which can be transformed in connection for unloading table

- Adjustable bar stop, blade-cleaning brush, bi-metal blade

- Main switch with minimum tension coil, emergency button, thermic and magnetic motor

protection from 6 to 10 Amps, motor absorption device from 0 to 10 Amps gauge

- Floor stand with inside room and door, removable chip collector, coolant tank and electro-pump,

hydraulic unit with oil.

- Tools and user’s book

- In compliance with CEE Safety and Electro-magnetic Compatibility Norms (EMC)

- Electrics according to the Norms EN60204-1, EN55011, EN50082-2

The technical specifications indicated in the following tables give a general evaluation of the machine and of

its performances.

If not differently indicated all data reported in this manual refer to the standard version, suitable

for working at 400 V / 50 Hz THREEPHASE.

= cutting capacity ( max. dimensions on PROFILES & TUBES)

= BLADE DIMENSIONS = WEIGHT =VICE OPENING

= motor choice and blade speeds (at 50 Hz);

mm.

Kw

Mt/min

mm.

Kg.

mm.

4020x34x1,1

1.5-2,2

3~

37-74

400

637

310

280

400x250

280

270

300x200

280

270

300x200

2,2

3~

18

/100

(ESC)

400

642

210

200

200x200

Dimensions

(mm)

B

Width

L

Lenght

H

Heigth

H min.

Worktable

In use

1530

1787

2240

940

for transport

1600

1850

1700

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7 – INSTALLATION

This machine can work according to the parameters provided by the manufacturer if correctly installed and if

the minimum requirements are observed, as follows:

- It must be used indoor and with temperatures from +5 to + 40 ° C.

- The relative humidity of the environment must not be over 95%.

- The nominal value of the voltage must be between ± 10% and the frequency must be between ± 2% of the

nominal value.

The floor must have a proper loading capacity and be flat.

Floor space, operator position and working area are indicated in the included drawing that concerns only the

bandsaw, without optional accessories.

The worktable must be levelled by using the screws and nuts ( not supplied) placed in the little feet holes.

The machine has to be fixed to the floor . To grant the return of the coolant that goes onto the bars to be cut,

we suggest you: level the work-table with about 5 mm height each 2 meters length to the unload side ( right

side).

The included electrical schemes reproduce the necessary details to arrange the connections, to be

suited for a 4 KW power request.

Earthing of all the electric parts with a dedicated GREEN/YELLOW wire, connected with a TN system

to the supply cable. A supplementary earthing point – indicated with PE – can be located on the

metallic structure of the machine.

At the origin of the power supply cables a device (such as fuses) to protect against overloading has

to be installed. On the models equipped with electronic variable-speed drive unit (ESC), in order to

connect the differential protection on the power supply line, switches with a threshold of interference

on the power dissipation of not less than 300 mA (size 0.3 A or higher is recommended) have to be

employed, having possibly time adjustment availability (0>1.5 sec).

E.M.C. - Electromagnetic noise

The user is responsible for installing and using this saw according to the manufacturer’s guidelines outlined in

this manual. This equipment complies with the protection requirements established by the Directives

2006/42/CE, 2004/108/CE, concerning Electromagnetic Compatibility (EMC). It is in compliance also with the

technical guidelines of the Norms EN 55011, EN 50082-2 and it is intended for industrial and not for

household use.

Before installing the machine the user must take into account possible electromagnetic problems of the

working area. In particular we suggest to install the equipment away from:

- signalling, control and telephone cables;

- radio-television transmitters and receivers;

The supply cable has to be as short as possible, with no twists. All doors, coverings and frame have to be

closed when the saw is running. Do not make any modifications to the machine except for adjustments and

replacements allowed/recommended by the manufacturer. Follow the maintenance schedule.

8 – TRANSPORT & LIFTING

To move and transport the saw the procedures described below have to be followed. In any case, make sure

that the lifting equipment and the means of transport have a suited loading capacity (about 700 kg).

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WARNING

The use of gloves by the personnel in charge of handling the transport of this equipment is highly

recommended.

WARNING

When lifting and moving around the saw, or a part of it, create a safety zone around it, in order to prevent

potential risks to persons and damages to objects located nearby.

Special packing can be supplied upon specific requests by customers.

ALL TRANSPORT AND HANDLING OPERATIONS HAVE TO BE CARRIED OUT WHILE OBSERVING

THE FOLLOWING GUIDELINES:

+ The lifting equipment has to be suited to the size and weight of the machinery to move, with an

appropriate loading capacity.

+ When using equipment such as ropes, chains or lifting belts, special attention has to be paid to their

correct use and positioning in order to not compromise safety and loading capacity.

+ In case lifting belts are in contact with parts of the machine, nylon belts or ropes/chains wrapped with iute

or a clean protection have to be used. When wrapping up and lifting the machine, special care is

recommended to prevent external damages.

+ Handling operations have always to be carried out slowly and carefully, so as to prevent dangerous

situations to persons and things.

+ The personnel in charge of handling operations must observe all local, national and company safety

norms concerning injury prevention and working place.

Transporting the machine with packing at sight

Normally the machine is shipped with a packing at sight, if the means of transport is not open. The

machinery is fixed to a wooden base then it is wrapped into thermo-plastic material to protect it. After loading

it on a truck, it has to be fixed with belts to hinder any motions. To move around the machine use a forklift

with a fork length of more than 1 meter. It must be lifted from the front side.

WARNING: cover the machine with a canvas if it’s loaded on an open truck.

+ Transport in a wooden cage or case (ON REQUEST, WITH SURCHARGE)

The machine is wrapped into a thermo-plastic covering to assure the protection of all parts, then it is packed

in a wooden cage or case to protect it from collisions and possible bad weather.

To lift it, use a forklift (see picture 1). The machine is fixed inside the wooden packing by means of screws, to

prevent it from moving during the shipment.

You need to follow the indications you find on the packing before proceeding to moving or opening it.

WARNING

The size of the packing varies according to the machine ordered and its configuration.

WARNING

The machine is fixed to the packing by means of screws, so as to hinder that it can move during the transport

(see drawing in the following page)

DO NOT USE THE MOVABLE ARM WITH THE CONTROL PANEL AS LIFTING UP POINT.

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In case of following manipulations, the machine should be displaced with the saw frame completely down and

the movable arm with control panel should turned inside just over the machine AND FIXED!.

- FITTINGS ASSEMBLING

Some of these devices are suitable for BS 350 Gh as for BS400 GH. Some other like roller tables and

connections are NOT INTERCHANGEABLES.

Here the common devices or optional :

Inverter for variable blade speed - ESC - is an accessory which can be installed when manufacturing the

saw and allows the blade to have a variable speed. It can be adjusted by means of a selector located on the

control panel.

In case the maximum power supply threshold is exceeded - for example, because of an excessive cutting

pressure or because the blade remains stuck into the material - the inverter stops the motor. To restore it, the

main switch has to be turned to 0 (OFF), wait for about one minute and then turn it on I (ON).

In the meantime, try to find out the reason that caused the interruption and eliminate it.

Minimal lubrication – THE MINIMAL LUBRICATION SYSTEM APPLIED TO THE BANDSAW ALLOW TO

ELIMINATE ALMOST COMPLETELY THE TRADITIONAL COOLANT SYSTEM. THE MATERIAL IS MUCH

CLEANER AND THERE IS NO WASTE/SPILLING OF COOLANT AND WATER, CONTRIBUTING THUS

TO PRESERVING NON-RENEWABLE ENERGY SOURCES AS WELL. IT IS ACTIVE ONLY DURING THE

CUT.

IT IS COMPRISED OF A NOZZLE - 1/RI0463 – WITH 3 MICRO-HOLES TO SPREAD THE OIL ON THE

BLADE, A TANK WITH DEVICE TO ADJUST THE OIL FLOW AND ANOTHER TO REGULATE THE AIR

PRESSURE. THE 24V LOW TENSION SWITCH – ALLOWS TO STOP IT AT ANY TIME AND GO BACK

TO THE NORMAL STANDARD COOLANT SYSTEM.

Standard adjustable bar stop - it will be fixed on the right side of the vice and it is useful for doing more cuts

with the same lengts.

Voltage transformer - place it between the electric equipment of the building and the electric supply of the

machine. It allows to work with a different voltage than the standard one (that is 400V / 50 Hz).

Available voltages: 230V, 460V, 500V, 575V.

Only for BS 350 GH

Supporting roller tables: for installing these accessories in the right way it is necessary first of all to level

and fix the machine. These can be connected on both sides (loading / unloading).

The machine is equipped with a connection for the loading roller table (on the left side) - pos.1 / dr.

RI0173 -. For connecting it with the first element - type RTS - (supplied as optional) it is necessary to take

away the cover - pos. 2 / dr. RI0173 - and the roller.

For connecting the unloading roller table (on the right side) you have to take out the inclined part of the

chute - pos. 1 / dr. RI0174 -, and replace it with the connection kit “RAB 35S” - (supplied as optional);

then connect the roller table (usually the RTS type).

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These roller lines are comprised of modular steel units, each 2 meter long and equipped with 7 rollers. The

loading capacity is 700 kg. It must be fixed to the side - left and right - of the saw, to guarantee the stability

of the material that is going to be cut. To level the height of the rollers, place a bar on the worktable and

clamp it, then adjust all the screws until the table is perfectly in line with the saw.

Take as reference point the worktable and the support back jaw in order to aligne the roller tables starting

from the one that is nearest to the machine. If you need very long pieces fix the legs of the roller tables on

the ground and recycle the coolant transported by the workpieces that have to be cut.

If your working process require it, on the unloading side you can choose to use the roller table with manual

measuring system (RTM) or the one with digital measuring system (RTD) also.

Only for BS 400 GH

Supporting roller tables: The machine is equipped with a connection for the loading roller table (on

the left side) - pos.1 / dr. RI0173 – similar to the one of BS 350 GH model. For connecting it with the first

element - type RTS - (supplied as optional) it is necessary to take away the cover - pos. 2 / dr. RI0173 - and

the roller.

For connecting the unloading roller table (on the right side) you have to take out the inclined part of the

chute - pos. 1 / dr. RI0174 -, similar to the one of BS 352 GH model, and replace it with the connection

kit “RAB40S” - (supplied as optional); then connect the roller table

These roller lines are comprised of modular steel units, each 1.5 meter long and equipped with 5 rollers. The

loading capacity is 1500 kg. It must be fixed to the side - left and right - of the saw, to guarantee the stability

of the material that is going to be cut. To level the height of the rollers, place a bar on the worktable and

clamp it, then adjust all the screws until the table is perfectly in line with the saw.

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If your working process require it, on the unloading side you can choose to use the roller table with manual

measuring system with digital readout (RTL) or the one with digital measuring system and automatic

positioning of the stop (RTP) also.

This last device must be connected to the machine by a special device – ITEM 000910-01 –to sinchronize

the movement of the saw frame within the automatic backwarding of the lenght stop.

Unloading Roller Table RTL with

digital readout (Optional): it is

comprised of an RTS with the addition of

a measuring device equipped with digital

readout, powered by one size A battery.

It is available in 3- and 6-meter units. To

connect to the right side of the saw.

.

Unloading Roller Table with

motorized positioning RTP (Optional):

it is comprised of the RTS roller table

and a motorized bar-stop. The blade

movement can be synchronized with the

ongoing control of the cutting lengths.

Available in 3- and 6-meter units to be

connected to the right side of the

machine.

To rightly install the loading roller table, first of

all it is necessary to level and to adhere the

machine.

Therefore level the loading roller table to the

same level of the work table and the back

supporting jaws by beginning to that nearest

the machine.These can be connected on both

sides (loading / unloading).

The alignment of the loading/unloading tables

must begin with the one closer to the machine,

taking as reference point the worktable and the

back jaw. When cutting long bars, fix the table

to the floor and make sure the coolant, which is

carried by the bars, doesn’t drop on the

floor.To grant the return of the coolant that

goes onto the bars to be cut, we suggest you:

level the work-table with about 5 mm height

each 2 meters length to the unload side ( right

side)

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10 - BAND CHOICE -

In this paragraph we recommend the type of band to use for cutting an accordance to material that must be

worked. To get the best performance from this machine it is necessary to understand the right applications of

the used tools and what you have not to do with them.

The band you have to use must have the following dimensions (in mm.):

Standard feature for BS350 GH = 3370 x 27x 0,9

maximum length = 3380 minimum length = 3360 height = 27 max. thickness = 0,90

Standard feature for BS400 GH = 4020 x 34x 1,1

maximum length = 4030 minimum length = 4010 height = 34 max. thickness = 1,10

It is possible to use bands with a different thickness by changing appropriately the width of the pads guide “vv”

(see the paragraph ADJUSTMENTS ) and the tensioning of the band. It is also important the material of the

band; it is generally used the bi-metal band in different endurance qualities. The standard types are named

M2, M48, M42, M51.

The endurance of the teeth increases - and the fragility too - by going from the materila M2 to the M51. There

are also blades with hard metal pads or with diamond dust.

For making a right cut it is necessary to choose the pitch (t) or THE NUMBER OF TEETH PER INCH (z).

The blade must have generally the toothing as follows:

- close toothing for cutting thin materials, tubular and profiles.

- thin toothing for cutting solid materials or pieces that need a long piece of band (for example the central part

of a profile "U" ), or for cutting softer materials as aluminium, copper, soft bronze.

By choosing the right one you can avoid a lot of working mistakes and you can get a good blade penetration

and the necessary space for the chips.

If you cut more pieces at the same time, you must consider them as one piece (that is you have to

consider the global size).

The enclosed table shows the necessary information for a right choice. It can also be updated or changed

by the user according to his personal experiences.

Even if there are toothings with constant pitch, most band sawing machines allow the use of bands with

variable pitch toothing - groups of teeth having different pitch one from each other, that reduce vibrations and

noise and improve the finishing and the capacity of removal.

SUGGESTED PITCH

SOLIDS

Outer

Diameter

(mm)

BIG

PROFILES

Wall

Thickness

(mm)

PROFILES

Wall Thickness

(mm)

BUNDLE

Lenght

to Cut

(mm)

REF.

VARIABLE

CONSTANT

14 M42

-

1,5 max

-

10/14 M42

10 M42

-

1 a 2

-

8/12 M42

8 M42

20 max

-

2 a 4

-

6/10 M42

6 M42

40 max

-

4 a 8

-

5/8 or 5/7 M42

5 M42

30 a 80

6 a 12

-

50 a 100

4/6 M42

4 M42

40 a 90

10 a 20

-

70 a 120

3 / 4 M42 o M51

3 M42 o M51

70 a 150

15 a 25

-

100 a 200

2 / 3 M42 o M51

2 M42 o M51

120 a 250

Oltre 25

120 a 300

INSTRUCTIONS FOR USE

BS350 GH, BS400 GH autocut ED.2010 rev.01

16/64

These cutting recommendations are referred to 100 mm. diameter solid bar and a standard

construction machine of our range. For 2 speed machine we suggest you the motor speed to use; if it is

into bracket ( ) it is better to use a machine with ESC, that grant a continuous blade speed variation.

If material dimension decreases it is possible to increase the indicated values, considering also the

machine model and its performance and/or some optionals, for exemple ESC (Electronic Speed Control):

If material dimension increases it is necessary to decrease the indicated values, considering also the

machine model and its performance and/or some optionals, for exemple ESC (Electronic Speed Control):

MATERIAL

GROUP

i.e. DIN

denomination

DIN N°

Maximum

BLADE SPEED

m/min

Minimum

BLADE

SPEED

m/min

MOTOR

SPEED

(1or2)

FEED

FORCE

COOL

ratio

1)STRUCTURAL

STEEL

St37 St42

10037-10042

60

40

1.

BASSA

10%.

St50 St60

10050-10060

50

35

1

BASSA

10%

HARDENING STEEL

C10 C15

10301 10401

45

35

1

BASSA

15%

16MnCr5 20CrMo5

17131

17264

40

30

1

BAS/Med

10%

AUTOMATIC STEEL

9S20 10SPb28

10711

70

50

1 2

BASSA

15%

BEARING STEEL

100Cr6

13505

50

25

1

Med/ALT

5%

SPRING

STEEL

65Si7

15028

40

30

1

Med/ALT

5%

2)TOOL STEEL

UNALLOYED

GG15 GG30

--

50

30

1

Med/BAS

dry

ALLOYED

AL99.5 GalSi15Mg

--

300

50

2

Med/BAS

2%

CuSn6 CuSn6Zn

G-Cu Ke Cu

--

120

200

40

50

2 1

2

Med/ALT

BASSA

2%

HIGH SPEED

STEEL

C80W1

C125W

11525

11663

40

30

(1)

ALTA

5%

INOX STEEL

210Cr12 X155CrVMo

12080 12379

30

20

(1)

ALTA

dry

3)SPECIAL ALLOYS

X40CrMoV51

12344

30

20

(1)

ALTA

5%

S-6-5-2-2

13243

30

20

(1)

ALTA

5%

X5CrNi18 X10Cr1810

14305

30

20

(1)

ALTA

5%

TITANIUM

NiCr19NbMo

(Inconel)

24668

20

15

--

ALTA

20%

NiMo30

(Hastelloy)

24810

20

15

--

ALTA

15%

1)STRUCTURAL

STEEL

NiCr13Mo6Ti3

(Nimonic)

24662

20

15

--

ALTA

15%

Ti1

37025

30

20

(1)

ALTA

10%

G-TiAl6V4

37164

35

20

(1)

ALTA

10%

INSTRUCTIONS FOR USE

BS350 GH, BS400 GH autocut ED.2010 rev.01

17/64

 11. INSTRUCTIONS FOR USE AND WARNINGS

This machine can make automatic work cycles, however at the end of each one the operator has to remove

the material that has been cut and possibly change the cutting conditions. Therefore the saw sometimes

must be manually adjusted and then it works in automatic cycle (so the operator is not indispensable).

The working cycle ends when the machine stops; in order to begin a new cycle, the starting procedure will

have to be repeated.

This machine is designed and manufactured so as to be safely used by the operator, provided that it is

properly operated . No protections will ever suffice if the operator does not work with due

caution, does not make sure that the machine is in top operating conditions and does not

follow the instructions below.

You must remember that the machine is designed to CUT METALS with a sharp tool, and you

are responsible to see that it is operated in a SAFE and CORRECT manner.

1. make sure that the machine is properly installed and electrical installation is proper.

2. be sure you are familiar with all operating, safety, and applications information before

running this saw.

3. see that all who operate this machine are properly trained and fully aware of all safety

practices.

4. do not expose yourself or other people to any risk.

5. insist on proper personal protective equipment and practices.

6. maintain all factory-installed SAFETY DEVICES and make sure that these are never removed

or altered or restricted in any way.

7. the operator must have a safe and organized work area with suitable light and operating

room.

8. the whole equipment has to be correctly and constantly maintained and inspected on a

regular basis.

9. never use tools with different features from those for which the machine is designed for.

10.never use this machine to cut material bigger than the cutting capacity.

11. keep the cutting area clear of tools or other loose objects.

12. never operate the saw unless all protections are in place.

13. NEVER WEAR loose clothing, long sleeves, large gloves, jewelry, or any other items that

may be trapped into a part of the equipment. Confine long hair.

14. always disconnect the power at source when performing maintenance or making

adjustments.

15. never insert hands or arms into or near the cutting area while machine is running.

16. properly clamp the material in the vice and never hold it with your hands.

17. support suitably the bar on both sides of the machine to prevent falling.

We recommend to connect an unloading table in case the cutting length of the material is longer than the

distance between the blade and the right edge of the saw.

.

18. when cutting very short pieces, make sure they do not jam into the blade.

19. if the blade becomes jammed, turn immediately off the emergency locking button, then

move the cutting unit to the CUTTING START position. If this is not possible, open the vice

and move the piece, check that the blade or teeth are not broken, if so replace it.

20. never change the working conditions when cutting, with exception of those specifically

allowed (for example, changing speed with the Inverter).

21. do not move the saw while cutting and avoid its instability.

22. wear personal safety equipment, if required for a safe operation.

INSTRUCTIONS FOR USE

BS350 GH, BS400 GH autocut ED.2010 rev.01

18/64

ALWAYS OPERATE THE MACHINE SAFELY,

USING COMMON SENSE AND ALERTNESS

On some parts of the machine there are some stickers which warn about the safety measures that have to be

taken by the operator who runs it. Their meaning (easy to understand) is indicated in the following chart

INSTRUCTIONS FOR USE

BS350 GH, BS400 GH autocut ED.2010 rev.01

19/64

 11.1 - OPERATOR’S SAFETY

This section illustrates the safety protections applied on the saw, according to the current

legislation in the field of safety.

11.2.1. ELECTRIC EQUIPMENT – Norm EN 60204-01

. Electric board closed with screws - general switch

. Marking of the electric components used, according to the indications on the electric scheme

. Control circuit with 24V tension – Control transformer with fuses on input and output

. Earthing of all electric parts with a dedicated GREEN/YELLOW wire, connected with a TN

system to the supply cable. A supplementary earthing point – indicated with PE – can be

located on the metallic structure of the machine.

. Minimum tension coil that prevents accidental restarting after a lack of tension.

. Protection from overloads and high temperature thanks to bimetal thermo-protectors placed

directly in the blade motor

. Emergency button for interrupting immediately all the movements of the machine. In order to

restore all the functions, rotate the button half a turn.

. Sensor of the blade tension: in case the blade breaks or the tension strength diminishes, the

machine stops immediately

. Sensor of the closing of the blade protection: if it opens during the working, the machine

stops.

. The stops caused by one of the aforementioned devices needs a complete restoring of the

working cycle

11.2.2 – PROTECTION AGAINST ACCIDENTAL CONTACTS

. Complete metallic protection of the blade and the pulleys, the blade-cleaning brush and the

back blade-driving pads

. Forward metallic moving guard, fixed to the forward blade-driving pad. It assures the

coverage of the blade in every position, except for the stretch of blade which makes the cut.

Joint to the blade-driving pad, it can be opened only after the opening of the main protection

. Positioning of the saw blade thanks to 2 buttons located on the control board, in order to limit

the width of the danger area to the stretch of blade strictly necessary for the cut.

. During the cycle an automatic approaching device stops the saw blade near the material, in

order to start the cut.

. Guard extended to both sides which retains the coolant used during the cut, preventing its

spilling on the floor

. Parts of the machine with suitably chamfered or rounded angles

11.2.5. LIGHTING OF THE WORKING AREA

An inadequate lighting can cause accidents to the operator, who consequently needs a suited

lighting in the working area. In case of a lack of precise indications (for example, norm ISO

8995) for special areas, we advise to supply a lighting equal to 750 LUX.

INSTRUCTIONS FOR USE

BS350 GH, BS400 GH autocut ED.2010 rev.01

20/64

12 - MACHINE DESCRIPTION, APPLIED NORMS, USE

This machine is a manual band-saw with an electro-hydraulic device that allows the descent for cutting to be

completed autonomously (the blade bearing arch lowers through gravity, with a falling speed that can be

adjusted).

 It is not suited to cut wood and assimilated materials (see D.M. 2006/42/CE, enclosure I,

paragraph 2.3)

All the movements that can be carried out manually are: clamping material, approach and cut (autonomous ),

tool return ( LIFTING OF THE BOW), unclamping material and movement of the bar for a new cut.

Tool start-up is controlled by a push-button switch placed on the control board.

By the emergency RED&YELLOW switch you can stop the machine at any moment, particularly during the

autonomous descent cycle.

In designing and manufacturing this machine, we have considered the requirements of the Machine Directive

(2006/42/ EEC and so on..), important document valid in all E.E.C. Countries. Furthermore we have

considered the norms as type A ( EN12100-1, EN12100-2, EN60204 ) in the case that specifications of type

C are not available. The applied safety norms are mentioned in the included compliance declaration.

The choice and the use of the parts have been made by considering the conditions of use and the long

machine life.

From the position of the work, in front of the frontal vice, the operator has the possibility to actuate the

controls and to control the good working of the machine.

In the other paragraphs you will find any informations to use the machine in the best way and for a very long

time.

12.1 - APPENDIX FOR E.M.C.

The structure of this machine is complying to the protection requirements of the EEC Directives 2006/42/EEC

and 2004/108/EEC in terms of Electromagnetic Compatibility (E.M.C.).

In particular it respects the technical prescriptions of the norms EN 55011 and EN 50082-2, and it is foreseen

to be used in industrial environments and not in residential ones.

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