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MANUAL METAL BANDSAW
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Information contained in this manual < ORIGINAL INSTRUCTIONS > is produced by the manufacturer.
User's Manual – Mod. Zip 32 (2020
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA
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Rev.2 dd. 01.06.2021 (updated "DA" system)
Rev.1 dd. 26.11.2018 (updated to regulations)
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Figura 1 showing Zip 32 in the manual version
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Page 1
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Related Manuals for Thomas ZIP 32
Summary of Contents for Thomas ZIP 32
- Page 1 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA ’ ’ MANUAL METAL BANDSAW – – Figura 1 showing Zip 32 in the manual version Rev.2 dd. 01.06.2021 (updated “DA” system) Rev.1 dd. 26.11.2018 (updated to regulations) Information contained in this manual <...
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Page 2: Table Of Contents
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA CONTENTS INFORMATION ON USER’S MANUAL ......................4 SIGNS ON THE MACHINE ..........................4 MANUFACTURER, MACHINE DETAILS and DECLARATIONS ..............4 MANUFACTURER ............................4 DISTRIBUTOR ..............................5 MACHINE DETAILS ............................5 ‘CE’... - Page 3 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 11.1 GENERAL ADVISES ............................ 38 11.2 CHECK EFFICIENCY OF SAFETY DEVICES ................... 39 11.2.1 EMERGENCY PUSH-BUTTON......................40 11.2.2 INTERLOCKING ON THE SAWFRAME COVER ................40 11.3 ADJUSTMENTS ON THE MACHINE ......................41 11.3.1...
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Page 4: Information On User's Manual
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA INFORMATION ON USER’S MANUAL This manual is to be regarded as integral part of the Thomas Bandsawing Machine “ZIP 32” (further named “machine”) built by STHEMMA SRL (further named “manufacturer”). -
Page 5: Distributor
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA DISTRIBUTOR Name: _____________________________________________ Address: _____________________________________________ Tel.: _____________________________________________ Fax: _____________________________________________ MACHINE DETAILS Machine Type: METAL BANDSAWING MACHINE Model: ZIP 32 Year of Construction: 2016 ... -
Page 6: Contents Of "Ce" Certificate Of Conformity
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA CONTENTS of “CE” CERTIFICATE OF CONFORMITY STHEMMA SRL Via Monte Cimone 1 36010 ZANE’ (VI) - ITALIA Partita I.V.A. IT03753910243 We declare under our own responsibility that the machine... -
Page 7: Acoustic Emission
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Metal Bandsawing Machine Thomas Model: ZIP 32 Blade Speed: 70 m/min. Material being cut during the test: Steel Bar UNI C40 Ø 50 mm Place: manufacturer’s factory ACOUSTIC EMISSION... -
Page 8: Guarantee And Spare Parts Request
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA GUARANTEE and SPARE PARTS REQUEST GENERAL CONDITIONS The machine is guaranteed through 12 months counting from the delivery date. In any case, a registered letter is to be sent to the manufacturer within 8 days from the fault finding. The manufacturer has the right to assess the fault and agree or disagree on any claim. -
Page 9: Service Intervention Request Under Guarantee
See Chapter SPARE PARTS. GENERAL DESCRIPTION OF THE MACHINE Bandsawing machine Thomas Mod. ZIP 32 is a manual horizontal bandsaw with swing sawframe for easy mitre cutting. Double mitre 45°-0-60°. Optional ‘DA’ hydraulic controlled sawframe downfeed. The machine is made up of the following assemblies: Sawframe, Vice, Base, Electric Box and Control Panel. -
Page 10: Sawframe
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 4.4.1 SAWFRAME Part of the machine holding operating parts (gear-box and flywheels), blade tension ans blade guides. Refer to fig. 2-4. 1) Sawframe. 2) Motor and Gear-box. 3) Lock Lever for mobile blade-guide. -
Page 11: Vice
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 4.4.2 VICE Material clamp during cutting by hand wheel and quick lock lever. The Vice can be moved sideways right and left allowing mitre cutting. Refer to fig. 3-4. - Page 12 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA User’s Manual – Mod. Zip 32 (2020 Page 12...
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Page 13: Base
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 4.4.3 BASE Metal steel plate base supporting the revolving arm, vice and bar stop. Housing for coolant liquid Tank and Electropump. Refer fig. 4-4. 1) Metal Work. 2) Coolant liquid Outlet. -
Page 14: Electric Box And Control Panel
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 4.4.4 ELECTRIC BOX and CONTROL PANEL Refer to fig. 5-4. 1) Electric Box (plastic). 2) Luminous Push-Button for machine stand-by; when lit up the machine is electric energized and ready for use. -
Page 15: Technical Details
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA TECHNICAL DETAILS TECHNICAL DATA Electric Motor controlling blade speed ........kW 0,55 – 1,1 Electropump ................kW 0,06 Blade dimensions ..............mm 2750x27x0,9 Flywheels diameter ..............mm ... -
Page 16: Interactions Between Machine And Operator
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Voltage Unbalance for three-phase voltage supply Both inverted sequence and zero sequence should not be over 2% of voltage direct sequence. Voltage Pulsations Voltage pulsations should not last longer than 1,5 ms by up and down time included between 500 ns and 500 µs with peak value not over 200% of the efficient value of nominal voltage supply. -
Page 17: Machine Working Place
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Machine Operator Qualified worker properly formed on the machine, capable to operate on the machine and carry out the following operations a) Check safety devices before starting the machine;... -
Page 18: Descripion Of The Working Place
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA DESCRIPION OF THE WORKING PLACE 6.3.1 CONTROL PLACE Control place (1 fig. 2-6) is located in front of the control panel (2 fig. 2-6), on the front side of the machine. -
Page 19: Suitable Use And Unsuitable Use
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA SUITABLE USE and UNSUITABLE USE The Use of the machine other than prescribed by the manufacturer might lead to dangerous events for people safety and risks of serious accidents. The machine itself can be damaged. -
Page 20: Technical Data
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA For the machine to be used in a proper and safety way, roller tracks should be provided to support the stock material (these can be delivered from the manufacturer’s optional accessories/equipment sales list). -
Page 21: General Advises On Safety And Prevention
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Use contrary to the local or country laws. Lack of prescribed maintenance. Modification or intervention non authorized. Use of non original or non specific parts for the model at hand. -
Page 22: Guards, Protection Devices And Signs
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA The machine should be used for the purpose which it has been designed for (see chapter SUITABLE USE AND USUITABLE USE). It is forbidden to eliminate and/or remove the guards and the devices installed on the machine. - Page 23 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA g) The electric installation makes sure the protection against electric shock, direct and indirect contacts as prescribed by the regulation EN 60204-1; also, it has been tested successfully to the examinations provided by paragraph.
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Page 24: Safety Signs Attached To The Machine
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA SAFETY SIGNS ATTACHED TO THE MACHINE Labels applied to the machine. 1) Danger : arms crushing. 2) Danger : hands cutting. 3) Danger : electric shock. 4) Attention: do not obstruct coolant liquid top drain hole. -
Page 25: Remaining Risks
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 5) Forbidden : maintenance/lubrication while parts in motion. 6) Forbidden : removal of safety devices. 7) Obligation : wear protection gloves. 8) Obligation : wear acoustic protection devices. - Page 26 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA DANGEROUS AREA “A” (Vice) 1.3 – Mechanic Danger – Appraoch of a mobile element to a stationary part Possible Consequences Danger: hands crushing as the vice locks the stock material – between mobile and fixed parts of the vice on its movement to lock the stock material –...
- Page 27 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Loading or Discharge of the stock material on the roller tracks – Stock material moving on the roller tracks. Risk Frequency Risk is there all the time during the use of the roller tracks.
- Page 28 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Danger : projection of blade parts or material being cut: in case of blade breakage or chips / swarf projection from the stock material. Danger : hands or fingers contact with hot parts caused by blade stock material overheating.
- Page 29 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Operator Dangerous event Contact with the steel brush. Risk Frequency Risk is there all the time during the machine use – cleaning or brush replacement. Operator’s Risk Hands injury.
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Page 30: Personal Protection Devices
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA After the cut is completed, particularly if stock material is a large one, material may fall off the machine or roller tracks. Risk Frequency Risk is there all the time during machine use. -
Page 31: Moving
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Obligation: wear protection helmet During moving and scrap. Obligation: wear acoustic protection plugs During machine use. MOVING GENERAL ADVISES INOBSERVANCE TO THESE ADVISES, WILL RAISE THE MANUFACTURER FROM ANY RESPONSIBILITY IN CASE of ACCIDENT, DAMAGE or MACHINE MALFUNCTIONING. -
Page 32: Moving The Machine With Fork Lift Truck
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA High Temperature alterations or minus 0° C for more than 72 hours may cause damages to electric equipment. MOVING THE MACHINE WITH FORK LIFT TRUCK Machine Status: Machine ready for moving. - Page 33 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA User’s Manual – Mod. Zip 32 (2020 Page 33...
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Page 34: Installation Of The Machine
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA INSTALLATION OF THE MACHINE 10.1 GENERAL ADVISE INOBSERVANCE TO THESE ADVISES, WILL RAISE THE MANUFACTURER FROM ANY RESPONSIBILITY IN CASE of ACCIDENT, DAMAGE or MACHINE MALFUNCTIONING. The installation of the machine should be carried out by qualified technicians only and in perfect psycho-physical conditions. -
Page 35: Anchorage Of The Machine
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 10.4 ANCHORAGE OF THE MACHINE Machine Status: Machine set up on the installation place. Operators: n. 1 mechanic worker a) Referring to the drawing (fig. 1-10), provide fastening and guys to be anchored on the floor. - Page 36 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA The manufacturer delivers the machine without any current plug: the user should connect a proper plug bearing in mind that the electric circuit of the machine is a three-phase 5 cables with neutral;...
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Page 37: Mounting Parts And Accessories Separetely Delivered
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 10.6 MOUNTING PARTS AND ACCESSORIES SEPARETELY DELIVERED Machine status: Machine installed. Operator: N. 1 mechanic worker Mount bar stop Rod (1 fig. 3-10). Mount and align the stock material support (2 fig. 3-10) to the left side of the base. -
Page 38: Use Of The Machine
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA USE OF THE MACHINE 11.1 GENERAL ADVISES The machine working area (area 1 fig. 1-6) is a dangerous area and anybody accessing the area is to be considered “exposed" to risk. Serious risk injury. -
Page 39: Check Efficiency Of Safety Devices
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA When the machine is working, parts in motion should not be touched in any way, guards should not be removed, cleaning or maintenance operations should not take place. Do not remove swarf... -
Page 40: Emergency Push-Button
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Operator: N. 1 operator. ATTENTION Every time, before starting the machine, it is compulsory to check the safety devices as follows: 11.2.1 EMERGENCY PUSH-BUTTON. Check the efficiency of the emergency push-button (1 fig. 2-11) located on the control panel. -
Page 41: Adjustments On The Machine
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA luminous push-button <READY> should turn out and and if you press the trigger switch (3 fig. 2-11) the blade should not start. To start again the machine you need to close the sawframe cover and press the button <READY> (2 fig. - Page 42 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Blade tension degree is set by the manufacturer and it is obtained by turning the hand wheel till the micro-switch button is pressed down (2 fig. 4-11 bis).
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Page 43: Adjustment Of Blade-Guide Blocks
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 11.3.2 ADJUSTMENT OF BLADE-GUIDE BLOCKS The blade runs through a set of carbide pads which are adjusted by the manufacturer according to the thickness of the blade as shown on fig. 6-11. -
Page 44: Vice Adjustment
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA ATTENTION Proper adjustment of blade-guide carbide pads will guarantee perfect cutting performance and long life blade. Keep blade-guides always clean and lubricated making sure the coolant liquid flow through the holes on the blade-guide blocks. -
Page 45: Blade Replacement
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 11.3.5 BLADE REPLACEMENT a) Raise the sawframe to the top position. b) Release the blade tension by turning the hand wheel (1 fig. 9-11) anti-clockwise. c) Open the sawframe cover (2 fig. 9-11) by releasing the black plastic knobs (3 fig. 9-11). -
Page 46: Start And Use Of The Machine
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 11.4 START AND USE OF THE MACHINE ADVISE At the beginning of each working shift, before starting the machine, it is compulsory to check the safety devices (see chapter CHECK-UP OF SAFETY DEVICES EFFICIENCY). -
Page 47: Working Cycle
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 11.4.2 WORKING CYCLE Before using the machine, make sure that all preparation and adjustment of the machine have been completed. See chapter ADJUSTMENT OF THE MACHINE. 11.4.3 DESCRIPTION OF THE CUTTING CYCLE a) Vice close by hand wheel. - Page 48 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA a) Make sure that the emergency push-button (1 fig. 12-11) is released; if it is still engaged the machine will not start. b) Turn the blade tension hand wheel (2 fig. 12-11) clockwise until the safety micro-switch button is pressed down.
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Page 49: Cutting Cycle With Option "Da" Controlled Sawframe Downfeed
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA “DA” 11.4.5 CUTTING CYCLE with OPTION CONTROLLED SAWFRAME DOWNFEED Vice close by hand wheel. Sawframe gravity downfeed hydraulic controlled and cut. Manual sawframe lifting. Vice opening by hand wheel. -
Page 50: Maintenance Of The Machine
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA MAINTENANCE OF THE MACHINE 12.1 GENERAL ADVISES Maintenance operations are classified in daily, weekly, monthly and biannual. Bear in mind that lack of maintenance determine a poor performance and a shorter machine life. -
Page 51: Blade Cleaning Brush
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Operators: N. 1 operator Personal protection devices: Protection Gloves Work blue overalls Protection shoes 12.2.1 BLADE CLEANING BRUSH Blade cleaning brush (1 fig. 2-12) is a very important device for the proper blade cleaning as the swarf should not stick to the blade teeth during the cutting operation. -
Page 52: Weekly Maintenance
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 12.2.4 WEEKLY MAINTENANCE Clean and remove the chips/swarf from the coolant liquid tank (1 fig. 4-12). Remove the electro-pump (2 fig. 4-12) from its housing, clean the draught filter (3 fig. 4-12). -
Page 53: Monthly Maintenance
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 12.2.5 MONTHLY MAINTENANCE Check and tight the screw (1 fig. 5-12) holding motor flywheel. Check and tight the ring nut (2 fig. 5-12) of the return flywheel. -
Page 54: Biannual Maintenance
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 12.2.6 BIANNUAL MAINTENANCE (every 2000 hours) Provide electric continuity test for the circuit of the equipotential protection. 12.2.7 OIL COOLANT LIQUID We advise to use SHELL LUTEM OIL ECO or any equivalent oil from any other reliable make. -
Page 55: Final Instructions
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA b) Lubricate the machine. c) Make the machine running idle. d) Test all the functional parts separately. e) Check the safety devices, the control panel and the efficiency of the electric components. -
Page 56: Mechanic Operations
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA N. 1 electrician. a) Remove the plug from the power cable and remove the cable from the electric board. b) Cut off all the connections between the machine and the electric board. -
Page 57: Blade Selection
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 14.2 BLADE SELECTION First of all the pitch of the teeth must be chosen, in the other words, the number of teeth per inch (25,4 mm) suitable for the material to be cut, according to these criteria: - parts with a thin and/or variable section such as profiles, pipes and plate, need close toothing, so that the number of teeth used simultaneously in cutting is from 3 to 6;... -
Page 58: Blades Type
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA 14.7 BLADES TYPE 14.7.1 TEETH FORM and GEOMETRY User’s Manual – Mod. Zip 32 (2020 Page 58... - Page 59 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA User’s Manual – Mod. Zip 32 (2020 Page 59...
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Page 60: Trouble-Shooting
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA TROUBLE-SHOOTING This chapter lists the probable faults and malfunctions that could occur while the machine is being used and suggests possible remedies for solving them. 15.1 BLADES AND CUTS TOOTH BREAK 1. -
Page 61: Electric Problems
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA BLADE BREAK 23. Faulty welding of blade 24. Too fast downfeed speed 25. Wrong cutting speed 26. Wrong tooth pitch 27. Ineffective gripping of the part in the vice 28. -
Page 62: Electric Diagram
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA ELECTRIC DIAGRAM User’s Manual – Mod. Zip 32 (2020 Page 62... - Page 63 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA User’s Manual – Mod. Zip 32 (2020 Page 63...
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Page 64: Spare Parts
Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA SPARE PARTS Electric Motor Hydraulic Cylinder “DA” (option) Sawframe return Spring Blade tension Micro-switch for “DA” only Limit Switch for “DA” only User’s Manual – Mod. Zip 32 (2020... - Page 65 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA Electric Box Light “Stand-by” START for MANUAL version only Emergency Button 2 speed Selector Main Switch Hydraulic Unit for ‘DA’ only User’s Manual – Mod. Zip 32 (2020...
- Page 66 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA User’s Manual – Mod. Zip 32 (2020 Page 66...
- Page 67 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA User’s Manual – Mod. Zip 32 (2020 Page 67...
- Page 68 Thomas Metal Bandsawing Machine - Mod. ZIP 32 / ZIP 32 DA è è User’s Manual – Mod. Zip 32 (2020 Page 68...
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