https://ghmmachinery.com/product-category/rebar-threading-machine/
- Pre-Operation Checks:
- Inspect electrical parts for damage and ensure the machine body is well-grounded.
- Verify that the power supply voltage matches the machine’s working voltage. Ensure the distribution box is within 3 meters of the motor.
- Ensure the machine is installed smoothly with complete and reliable safety protection components.
- Initial Setup:
- Run the machine without load to test the forward and reverse functions of the motor. Ensure the machine and water pump are functioning properly.
- Preparing Steel Bars:
- Select steel bars with good longitudinal linearity. Ensure the cut end face is perpendicular to the axis of the steel bar. If not, cut and polish the end face before threading.
- Loading Steel Bars:
- With the help of two people, lift the steel bar onto the workbench. Clamp it securely and adjust the concentricity to prevent loosening and potential injuries.
- Threading Process:
- Start threading slowly, then gradually increase speed, maintaining a uniform threading speed. Ensure thread teeth remain intact to prevent equipment damage.
- Handling Semi-Finished Products:
- After processing the first thread, lift it onto the semi-finished material rack with the help of two people. Use the appropriate sleeve to connect and lock it. Observe and feel for proper locking and threading quality.
- Quality Inspection:
- Sample threaded connectors under the supervisor’s witness and send them to the laboratory for quality inspection.
- If the laboratory inspection is qualified, continue processing threaded joints of the same specification.
- Troubleshooting:
- If the machine operates poorly or the knife gets stuck, stop the machine immediately for inspection and repair.
- Do not clean debris from the blade while the machine is operating.
- Safety Measures:
- Operators must wear goggles. Avoid touching rotating parts when wearing gloves.
- Post-Processing Care:
- Clean the processed threaded interface and protect it from rain and corrosion.
- Ensure coolant is clean and free of impurities. Replace coolant monthly.
- Add and replace gear oil in the reducer every three months.
- Maintenance:
- Maintain and repair the machine according to regulations.
- End of Operation:
- Turn off the power, lock the distribution box, and clean the work area before leaving.
- Standard Sleeve Geometric Dimensions:
Specifications Sleeve Length (mm) Thread Length (mm) Thread Number Pitch (mm) 16 45 22.5 9 2.5 18 55 27.5 11 2.5 20 60 30 12 2.5 22 65 32.5 13 2.5 25 70 35 12 3.0 28 80 40 13 3.0 32 90 45 15 3.0 - Minimum Tightening Torque for Straight Thread Joint Installation:
Rebar Diameter (mm) Tightening Torque (N·mm) ≤16 100 18~20 200 22~25 260 28~32 320 36~40 360 50 460 Note: The exposed threads on one side after installation should not exceed 2P.
