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Koike Sanso Kogyo IK-72T Operation Manual

Portable automatic gas cutter
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Portable Automatic Gas Cutter
BJA01B18
IK-72T
Three-Dimensional Cutter
OPERATION MANUAL
For every person who will be engaged in
operation and maintenance supervision, It is
recommended to read through this manual
before
any
operations,
so
as
to
permit
optimum operation of this machine.
KOIKE SANSO KOGYO CO.,LTD.

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  • Page 1 Portable Automatic Gas Cutter BJA01B18 IK-72T Three-Dimensional Cutter OPERATION MANUAL For every person who will be engaged in operation and maintenance supervision, It is recommended to read through this manual before operations, permit optimum operation of this machine. KOIKE SANSO KOGYO CO.,LTD.
  • Page 3 INTRODUCTION Thank you very much for purchasing this product. Read this instruction manual thoroughly to ensure correct, safe and effective use of the machine. Read the manual first to understand how to operate and maintain the machine. Cooperation between colleagues in the workplace is essential for safe, smooth operation.
  • Page 4 Symbol Title Meaning General General caution, warning, and danger. Be careful not to get your Possible injury to fingers if caught in the insertion fingers caught. port. Caution: Electric shock! Possible electric shock under special conditions. Ground this equipment. Operators must ground the equipment using the safety grounding terminal.

  • Page 5: Table Of Contents

    IK-72T CONTENTS 1. Safety Information ......................... 1 1.1 General machine safety precautions ................1 1.2 Gas cutting safety precautions ..................3 2. Locations of safety labels ...................... 5 3. Outline of machine......................... 6 3.1 Features of machine ..................... 6 3.2 Name and function of each section ................6 3.3 Specifications .......................

  • Page 6: Safety Information

    IK-72T 1 Safety information Operation, inspection, and maintenance that disregard the basic safety rules cause many accidents. Carefully read, understand, and master the safety measures and precautions described in this instruction manual and on the machine before operating, inspecting, and maintaining the machine.
  • Page 7 IK-72T 1.1.3 Operation and handling safety precautions 1. Read this instruction manual before operating the machine. 2. Mount and center the machine correctly and confirm correct motion before operation. 3. Before connecting the power plug to the outlet, make sure that the power switch is in the OFF position (or the normal/reverse changeover switch is in the stop position).

  • Page 8: Gas Cutting Safety Precautions

    IK-72T 1.2 Gas cutting safety precautions Strictly observe the safety rules and precautions to ensure the safety of gas cutting operations. Operators and supervisors MUST keep safety in mind. 1.2.1 Prevention of explosion 1. Never cut pressurized cylinders or hermetically sealed containers.
  • Page 9 IK-72T 1.2.6 Safety precautions for skin burns Observe the safety precautions to prevent skin burns. Ignoring heat, spatter, and sparks during operation could cause a fire or burned skin. Do not perform cutting near flammables. (Move flammables well away from the sparks.) Do not cut containers filled with flammables.

  • Page 10: Locations Of Safety Labels

    IK-72T 2 Location of safety labels Safety labels and other labels for correct operation are affixed to the machine. Carefully read the labels and follow the instructions on them when operating the machine. Never remove the labels. Keep them clean and legible at all times.

  • Page 11: Outline Of Machine

    Outline of machine 3.1 Features of machine The IK-72T (three-dimensional cutter) is a portable automatic gas cutter designed and manufactured to ensure high-precision cutting of three-dimensional structures (especially three-dimensional curves) which are conventionally cut by mechanical cutters. Three kinds of rails – 1D, 2D, and 3D – increase the range of operation and greatly help to rationalize and reduce the cutting work.

  • Page 12: Specifications

    IK-72T 3.3 Specifications Weight : 11 Kg (incl. rail) Body: 4.5 Kg Rail: 6.5 Kg Machine size : 190 x 195 x 140 mm Rail size : 30H x 42W x 1500L (mm, extendable rail) ・1D (straight AL rail with 4 magnets) 30H x 42W x 1000L ・2D (two-dimensional rubber rail with 5 magnets)

  • Page 13: Preparation For Operation

    IK-72T 4.3 Preparation for operation 4.3.1 Connecting the power cable 1. Connect the power cable to the body. 2. Before plugging the metal plug on the cabtyre cord side into the socket on the machine side, check there is no dust inside.
  • Page 14 IK-72T Rail may fall with machine depending on the operating conditions such as workpiece thickness, condition of absorption surface, thermal effect and others. Especially, since the surface of 1D rail is flat, the magnetic force may get weak depending on the condition of the workpiece such as rust, paint, deflection and others.
  • Page 15 IK-72T ■Rail connection method ・1D rail (straight AL rail) 1.Turn OFF the magnet on the connection rail. 2.Align the connecting direction as shown in the figure. 3.Insert the fixed rail. 4.After positioning, fix the rail with the magnet. ・2D rail (two-dimensional rubber rail) ・3D rail (three-dimensional rubber rail)

  • Page 16: Cutting Operation

    IK-72T 5 Cutting operation 5.1 Safety measures prior to operation 5.1.1 Grounding the machine The cable of this machine is equipped with a grounding wire. For safety, be sure to ground the wire as follows, in addition to checking the connection of the power cable.

  • Page 17: Cutting And Piercing Method

    IK-72T 5.3 Cutting and piercing method 1. Cut in from the end of steel plate. 2. Pierce steel plate before cutting. 3. Drill a hole before cutting. ■Piercing method 1) Ignite and adjust the flame. 2) Thoroughly preheat the cut-in point until it is white hot.

  • Page 18: Cutting Operation

    IK-72T 5.6 Cutting operation 1. Attach the rail to the cutting position, and align the tip with the cutting start point. 2. Bring a flame close to the tip for ignition and ensure sufficient preheating. 3. Simultaneously with opening the cutting oxygen valve, turn on the switch to start cutting.

  • Page 19: Troubleshooting

    IK-72T 7 Troubleshooting (1) The machine will not move. (The motor will not run.) Cause Inspection point Correction 1) Power is not supplied Check power supply. Check the connections. 2) Fuse blown Check the 1A fuse in the control box Replace the blown fuse.
  • Page 20 IK-72T (3) The machine will not move. (The motor runs) Cause Inspection point Correction 1) Malfunction Remove the speed reducer box to Disassemble and clean. check the clutch operation. 2) Idle rotation of The reduction gear is rotating idly Replacement of gears (set).
  • Page 21 IK-72T 5) The magnet of the rail comes off from the adsorbed surface of the workpiece. Inspection point Remarks Causes Correction Presence of an obstacle Adsorption surface is Remove paint and between the magnet and painted or processed. processed material.

  • Page 22: Wiring Diagram

    IK-72T 8 Wiring diagram 9 Assembly drawing －17－...

  • Page 23: Parts List

    IK-72T 10 Parts list 10.1 Main and driving units - 18 -...
  • Page 24 IK-72T Main and driving units ITEM Q’T STOCK ITEM Q’T STOCK PART NAME REMARKS PART NAME REMARKS Machine base 1 60031674 39 Hexagon bolt 1 6C030535 BC-5×35 ★ Drive shaft assembly 1 60031606 40 Washer 1 6D500050 WF-5 Clutch shaft...

  • Page 25: Distribution And Holder Units

    IK-72T 10.2 Distribution and holder units - 20 -...
  • Page 26 IK-72T Distribution and holder units ITEM Q’T STOCK ITEM Q’T STOCK PART NAME REMARKS PART NAME REMARKS Except 64 Cross feed holder ass’y 1 60031632 89 Hose for preheat oxygen 1 60030305 USA, KE 65 Handle 2 60031628 Hose for preheat oxygen 1 60030304 ※1...

  • Page 27: Rail Unit

    IK-72T 10.3 Rail unit 10.3.1 Straight rail 10.3.2 2,3 Dimension rail －22－...
  • Page 28 IK-72T Rail unit STOCK STOCK ITEM ITEM PART NAME REMARKS PART NAME REMARKS Straight rail 60038801 With Rack M5x15 with WS Screw 6C530515 1D only M5x15 with WS Screw 6C530515 2D 3D only Connector 60031694 1D only Hook bolt 60031654...

  • Page 29: Cutting Data

    IK-72T 11 Cutting data 102(STANDARD SPEED) For Acetylene OXYGEN PRESSURE FUEL GAS PLATE CUTTING KERF (kg/c ㎡) / (Mpa) PRESSURE THICKNESS SPEED WIDTH SIZE (kg/c ㎡) / (Mpa) (mm) (mm/min) (mm) CUTTING PREHEAT 1.5 / 0.15 1.5 / 0.15 0.2 / 0.02 2.0 / 0.2...
  • Page 30 IK-72T 106(STANDARD SPEED) For Propane OXYGEN PRESSURE FUEL GAS PLATE CUTTING KERF (kg/c ㎡) / (Mpa) PRESSURE THICKNESS SPEED WIDTH SIZE (kg/c ㎡) / (Mpa) (mm) (mm/min) (mm) CUTTING PREHEAT 1.5 / 0.15 1.5 / 0.15 0.2 / 0.02 2.0 / 0.2 2.0 / 0.2...
  • Page 31 ＜MEMO＞...
  • Page 32 OPERATION MANUAL Date of issue: Sep.1995 Jun.2007 May.2008 Nov.2008 Oct.2009 Aug.2010 Dec.2010 Jan.2012 Oct.2012 10th Jan.2013 11th May.2013 12th Nov.2013 13th Jun.2015 14th Jun.2018 15th Feb.2019 16th May.2020 17th Jul.2021 18th Sep.2023 KOIKE SANSO KOGYO CO., LTD. Printed in Japan...

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