How To Use Pipe Polishing Machine

Introduction of the centerless pipe polishing machine - Working theory of tube polishing machine

1. The polishing wheel driven by the main motor belt will rotate to polishing the surface of the pipes. The minimum diameter of pipe can be 3mm, while the maximum diameter of pipe is 100mm. The speed of main polishing wheel motor is 1420rpm, while the no-load polishing wheel speed is 2840rpm.

2. Guide wheel is driven by a DC motor 1700rpm connecting with a belt and a reducer becoming 200-500rpm. The rubber guide wheel are rotating in same direction but slower speed than abrasive wheel to keep the pipe rotating. In the new design, the guide wheel is not vertical to the tray, but inclined (in the old design the wooden tray is inclined) so that the pipe can move forward.

3. The speed of the pipe feeding is adjustable. For big diameter pipe such as 100mm the speed can be 3 meters/min, while for small diameter such as 25mm tube the speed can be 8 meters/min. There is a speed regulation knob on the electrical cabinet.

4. The right side hand wheel is set before shipment, there is no need to rotate this hand wheel.

Wiring on the pipe polishing machine - How to connect electricity to the polishing machine

Please connect input power Live wire and Neutral wire to this 2 terminals.
Prepare 2.5mm² and 4mm² electricity wire as input power cord.

How to use pipe polishing machine

1. Make sure the wheel are in correct position. Check if every screw is firm on guide wheel and buffering wheel.

2. Turn on the machine. Make sure the abrasive wheel are rotating as the indicated direction. Wrong direction are now allowed. You must stop the machine immediately if wrong direction.

3. By adjusting the screw besides the wooden supporting tray, we can adjust the position of the tray, to fit various diameter pipes.

4. The center of pipe should be just at the middle center of wooden tray, in the meantime the pipe should touch the rubber guide wheel. By adjusting the front hand wheel we can have the guide wheel touching the pipe. The position of polishing wheel is set before shipment, basically there is no need to adjust it.

5. Turn on the machine and run the polishing. You can adjust the working speed and polishing effect by rotating the knob on cabinet. Pls only adjust speed when the power are on.

6. After long period of polishing work, if the polishing effect becomes not good(due to the wheel size reduce), you can rotate the wheel handle and move the wheel more close to the pipe side.

How to change the abrasive wheel

Loose the nut and take out the washer and pad to change the polishing wheel.

Maintenance of pipe buffing machine

Add #45 machine oil about 560ml to the reducer gearbox case.
The main belt will be aging after 3 month, the speed will be slower and sometimes skidding, then please replace the belt.
Add lubricant grease to the front hand wheel screw rod, polishing machine main shaft bearing case (after 2-3month)and guide wheel bearing, a 30# grease will be ok.
Clean the machine inside the white dust shell, clean the motor to ensure longer life.
Every one year replace the carbon brush on the DC guide wheel motor.

Trouble shooting of pipe grinding machine

If the pipe do not move forward, pls adjust the gap of guide wheel to the same.
Irregular grain appear on the surface of pipe, the guide wheel distance is too small or too big.
Regular grain appear on the surface of pipe, pls check the abrasive wheel.
Black color appear, pls check and replace the guide wheel.
The pipe are not smooth as expected, pls check if the grade of abrasive wheel correct and pipe placed in right position.
If there is noise, please change the two bearings installed on both side of the main shaft.
If the guide wheel rotation is weak or stopped, please replace the two bearings on the main shaft bearing case.