Rapidtool CRB-25 Industrial Rebar Bender and Cutter User Guide

June 1, 2024
RapidTool

Rapidtool CRB-25 Industrial Rebar Bender and Cutter

Product Information

  • Specifications
    • Power Supply: 220-240V AC ~50Hz*
    • Input Voltage – Single Phase: 220-240V
    • Rated Input Power:
    • CRB-25: 1050W – 4.4A
    • CRBC-25: 1050W – 4.4A
    • CRB-32: 1550W – 6.5A
    • CRBC-32A: 2400W – 10A
    • Net Weight:
    • CRB-25: 91kg
    • CRBC-25: 136kg
    • CRB-32: 175kg
    • CRBC-32A: 225kg
    • Dimensions (cm):
    • CRB-25: 45L x 50W x 44H
    • CRBC-25: 50L x 45W x 79H
    • CRB-32: 60L x 58W x 47H
    • CRBC-32A: 60L x 58W x 98H
    • Bending Range: 6-32mm**
    • Cutting Range: 4-25mm to 6-32mm

Product Usage Instructions

  • Safety
    • This machine is a high-performance industrial machine. Failure to follow safety instructions may result in serious injury or death.
    • Take note of all warning signs on the machine.
    • Keep the work area clean and free from obstruction.
    • Mount the machine on an even surface capable of carrying the weight of the machine.
  • Transporting Machine
    • Do not lift here.
    • Forklift from the base. Lift via the base with a forklift rated for the machine’s weight. Ensure the load is balanced before lifting.
  • Operating Machine
    • Do not operate the bender and cutter at the same time.
    • General notes:
    • The machine is equipped with an emergency stop button.
    • Ensure pedal switch cords are securely fastened to inputs (if a pedal switch is required).
    • Always ensure the point 1 angle is set at least 5 degrees higher than the point 2 angle.
    • Ensure angle control dials are securely fastened.
    • Wait until the bending cycle is completed before starting a new cycle.
    • If pedal switches are not required, press the start switch to bend to point 1 angle.
  • Pre-use Checks
    • Check the power supply is properly earthed.
    • Check that the power cord is undamaged, and the plug is not loose (also applies for extension leads).
  • Bending Procedure
    • Secure the required fixed bending pin and gyre bending pin combination as per the table below.
    • Modify the adjustment block to suit the required bar size.
    • Securely fasten pedal switch cords to machine inputs (if required).
    • Connect to the power source and observe the power indicator light on the machine face indicating..

FAQs

  • Q: Can I use this machine for commercial rebar production?
    • A: No, this machine is not rated for commercial rebar production purposes. It is for industrial use only.
  • Q: What should I do if the power indicator light does not turn on?
    • A: If the power indicator light does not turn on, first check the power supply connection and ensure it is properly connected. If the issue persists, contact customer support for assistance.

WARNING:

  • READ ALL SAFETY WARNINGS, INSTRUCTIONS, ILLUSTRATIONS AND SPECIFICATIONS PROVIDED WITH THIS POWER TOOL.
  • Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.
  • Save all warnings and instructions for future reference.
  • The machine is not rated and should not be used for commercial rebar production purposes.
  • Do not operate the bender and cutter at the same time. FOR INDUSTRIAL USE ONLY.

Rebar Bender Models

Safety

This machine is a high-performance, industrial machine. Failure to follow safety instructions may result in serious injury or death.

  1. Take note of all warning signs on the machine.
  2. Keep the work area clean and free from obstruction. Mount the machine on an even surface capable of carrying the weight of the machine. The machine must be mounted so supply disconnecting device, actuators, and emergency stop button are at least 600mm above the servicing level. The machine should not vibrate on the surface during operation.
  3. Ensure the power supply is properly earthed.
  4. Keep body parts well clear of moving parts and protected areas when the machine is switched on.
  5. Authorized personal protective equipment must be worn when operating the machine (minimum requirement – safety glasses (when operating cutter), protective gloves and class 2 hearing protection).
  6. Indoor use only – never operate the machine in wet conditions.
  7. Stand well clear of the machine when in use (opposite the direction of the bend).
  8. Use away from others, particularly children.
  9. Ensure power & pedal switch cords are securely fastened before switching on the machine.
  10. Use emergency stop button immediately if issues arise during operation.
  11. Only lift via marked locations on base.
  12. Never attempt to bend rebar outside of the model’s prescribed diameter range (refer to the table in Specifications & Parts section).
  13. Do not bend short lengths.
  14. Clean machine of loose debris after use.
  15. Never attempt to service the machine (other than general maintenance procedures outlined in the Maintenance section). Contact the supplier if an issue arises.
  16. Only use RAPIDTOOL-approved spare parts and accessories with the machine.
  17. Keep away from sparks and naked flames.
  18. Always check power cords for damage and safe placement before use.
  19. Disconnect the machine from the power outlet when not in use.
  20. Inspect the machine before each use. Do not use it when quality has been compromised.
  21. Do not cover the air vents on the machine.
  22. Store out of reach of children.

Transporting Machine

Rapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1
\(1\)

Specifications & Parts

  • Power Supply:
    • Ensure the machine is connected to the correct power supply (check the machine label to confirm the power supply).
  • Extension Leads:
    • Where possible, connect the machine directly to a power outlet. If an extension lead is required, ensure the lead is under 50m in length. Minimum extension lead diameters are prescribed below:Rapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1 \(6\)

Machine Specifications

Rapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1
\(7\)

  • Check the machine label to determine the correct power supply.
  • Refer to the machine model data sheet for maximum tensile strength/grade.

Machine Parts

Rapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1
\(2\)

Note: The location of features on the machine face may vary with the machine model.

Operating Machine

  • Do not operate the bender and cutter at the same time.

General notes:

  • The machine is equipped with an emergency stop button.
  • Ensure pedal switch cords are securely fastened to inputs (if a pedal switch is required).
  • Always ensure the point 1 angle is set at least 5 degrees higher than the point 2 angles.
  • Ensure angle control dials are securely fastened.
  • Wait until the bending cycle is completed before starting the new cycle.
  • If pedal switches are not required, press the start switch to bend to point 1 angle.

Pre-use Checks

  1. Check power supply is properly earthed.
  2. Check that the power cord is undamaged and the plug is not loose (also applies for extension leads).

Bending Procedure

  1. Secure required fixed bending pin and gyre bending pin combination as per the table below.
  2. Modify the adjustment block to suit the required bar size.
  3. Securely fasten pedal switch cords to machine inputs (if required).
  4. Connect to a power source and observe the power indicator light on the machine’s face indicating the machine is ready for use.
  5. Adjust point 1 and point 2 angle control dials to required angles ensuring point 1 angle is set at least 5 degrees higher than point 2 angle. Securely fasten the angle control dial once the required angles are set.
  6. Stand well clear of the machine (in the opposite direction of the bend).
  7. Press the pedal switch connected to pedal switch point 1 input to bend to point 1 angle.
    • Note: Pressing the start switch will also bend to point 1 angle.
  8. Press the pedal switch connected to the pedal switch point 2 input to bend to point 2 angle.
  9. The bender/cutter model also has pedal switch point 3 input to operate the cutter (see Additional Instructions for Rebar Cutter section).

Note: Refer to RAPIDTOOL specifications where fixed/gyre bending pin diameters provided are not included in the tables above.

Working Conditions

Do not use or store the machine outside of the environmental conditions below:

Rapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1
\(10\)

Maintenance

  • Always ensure power is disconnected before performing maintenance.

Cleaning:

  • Always wear gloves to protect your hands from metal splinters when cleaning.
  • Wipe or brush away all dust and metal filings from the Band Table after use to prevent debris from entering the machine (can use compressed air).

Bend Table Bolts:

  • Ensure Bend Table Bolts are tightened before use.

Carbon Brushes:

  • Inspect carbon brushes monthly. Worn brushes will result in power loss and cause irreparable damage to the armature’s commutator. Check brushes immediately if a loss of power or electrical fault is experienced.

Replacing Carbon Brushes:

  1. Open the access side panel and locate the motor housing(s) with a black lid.
  2. Locate the brush caps on both sides near the top of the motor housing(s).
  3. Open the brush caps with a screwdriver and remove carbon brushes from the machine.
  4. Inspect the carbon brushes and replace them where worn or damaged.
  5. Reinstall new carbon brushes and brush caps securely.
  6. Replace the access side panel.

Lubrication:

  • Lubricant shall be checked every 2 months for heavy usage or when loss of power is experienced.
  • Always use approved lubricants with high corrosion and friction resistance properties.
  • Apply lubricant via a grease gun to the lubricant hole to ensure the lubricant chamber remains full.Rapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1 \(3\)

Additional Instructions for Rebar Cutter (Rebar Bender/Cutter Model)
Do not operate the bender and cutter at the same time.

  1. Safety
  2. Keep body parts well clear of cutting blocks when the machine is switched on.
  3. Never attempt to cut rebar outside of the model’s prescribed diameter range (refer to table in Specifications & Parts section).
  4. Do not cut short lengths.
  5. Inspect the cutter before each use (refer to the Maintenance section). Do not use it when quality has been compromised.
  6. Beware of ejected objects during the cutting process. Always wear approved safety glasses.
  7. Use protective gloves when cleaning the machine or handling cutter blocks as the edges are very sharp.
  8. Do not touch the pump housing after use as it will be hot. Wait for the machine to cool.
  9. Where available, a safety guard should be installed.
  10. Use the Allen Key to lose and activate the Release Valve function when required.
  11. Cutter PartsRapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1 \(4\)
    • Note: Cutter body varies with different models – use as a general guide.

Operating Machine

  • Pre-use Checks: Check the condition of cutter blocks and tightness of cutter block bolts (refer to Maintenance section).
  • Warm Up: In cold weather, warm up the cutter by repeating the cut cycle for 60 seconds to ensure hydraulic oil reaches proper viscosity.
  • Stopper Adjustment: The adjustable stopper must be set in the correct position dependent on the size of the rebar.
1. Insert rebar into U-shaped support.
2. Keeping rebar at 90° to machine, screw in stopper until it is just touching the rebar.

Cutting Procedure:

  1. Securely fasten the pedal switch chord to the pedal switch point 3 input.
  2. Connect to a power source and observe the power indicator light on the machine’s face indicating the machine is ready for use.
  3. Insert rebar between the stopper and front cutter block, making sure it is horizontally seated in U-shaped support.
  4. Press the pedal switch connected to pedal switch point 3 input while the cutter rod advances and fully cuts the rebar.
  5. Release the pedal switch only once the rebar has been fully cut to allow the cutter rod to retract.
    • Note: Power will be compromised if hydraulic oil exceeds 70°C. Allow the machine to cool before resuming operation.
    • Note: Do not cut rebar on an angle. Incorrect placement of rebar may cause damage to cutter blocks and/or cutter rods, voiding the warranty.

Maintenance

Always ensure power is disconnected before performing maintenance.

To access Rebar Cutter:

  1. Open the access side panel and locate the rebar cutter with a black cover.
  2. Remove the screws to lift the cover and access the rebar cutter.
    • Cutter Blocks: Check cutter blocks for damage before each use. If the cutter block is damaged, replace the block before the next use per the following diagram:Rapidtool-CRB-25-Industrial-Rebar-Bender-and-Cutter-FIG-1 \(5\)
    • Check cutter block bolts for tightness before each use. Use protective gloves when handling cutter blocks as the edges are very sharp.

Cleaning:

Clean machine after each use. Use protective gloves when cleaning to protect hands from metal splinters. Do not use an air gun as this may cause dust and metal filings to enter vents.

  1. Extend the cutter rod and disconnect it from the power source.
  2. Wipe or brush away all dust and metal filings. Pay particular attention to lower half of the cutter rod.
  3. Connect to a power source and press the pedal switch to complete the cut cycle.

Oil Level Check:
Check oil every 2 months or if loss of power is apparent in the rebar cutter. Hydraulic oil is highly flammable; keep away from sparks and naked flame. In case of ingestion or eye contact, consult a physician immediately.

  1. Adjust the stopper and make 3-4 cuts, noting exactly the point at which the rebar is breaking.
  2. Pinch the next bit of rebar, stopping just before it breaks. Unplug the machine from the power source.
  3. Turn the unit over so the oil plug is uppermost (if the machine is hot allow it to cool down first).
  4. Remove the oil plug and seal the washer (never remove when the machine is hot).
  5. Check oil is level with the bottom of the plug hole. If the oil is too low, top up with approved ISO VG46 oil.
  6. Remove air bubbles – gently tilt cutter lengthways and return to level position. Top up and tilt the cutter in the opposite direction. Repeat this process until all air has been extracted.
  7. Replace the seal washer and oil plug.
  8. Connect to a power source and completely sever rebar.

Oil Change:
Change oil at least once a year or sooner if it appears dirty.

  1. Unplug the machine from the power source.
  2. Turn the unit over so the oil plug is uppermost (if the machine is hot allow it to cool down first).
  3. Remove the oil plug and seal the washer (never remove when a machine is hot).
  4. Turn the cutter over and drain oil into a suitable receptacle. When oil ceases to drain, tilt the machine to the rear to allow oil trapped in the piston housing to drain out. When the housing is empty, tilt the unit in the opposite direction to empty the residue in the pump case.
  5. Once all oil has been drained from the machine, turn the unit over so the oil plug is uppermost.
  6. Slowly fill the machine with fresh oil and replace the seal washer and oil plug.
  7. Connect the machine to the power source and follow the procedure for Oil Level Check.

Note: Dispose of hydraulic oil per local regulations.

  • Bolt Tightness: All bolts should be checked for tightness weekly or after every 500 cuts (whichever comes first).
  • Carbon Brushes: Inspect carbon brushes every month. Worn brushes will result in power loss and cause irreparable damage to the armature’s commutator. Check brushes immediately if a loss of power or electrical fault is experienced.

Replacing Carbon Brushes:

  1. Unplug the machine from the power source.
  2. Locate the brush caps on both sides near the back of the motor housing.
  3. Open the brush caps with a screwdriver and remove carbon brushes from the machine.
  4. Inspect the carbon brushes and replace them where worn or damaged.
  5. Reinstall new carbon brushes and brush caps securely.

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