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How to distinguish the rollers’specifications  for different models of roll grooving machine? How to replace the rollers?

How to distinguish the rollers’specifications  for different models of roll grooving machine? How to replace the rollers?

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The rollers of roll grooving machine are divided into upper roller and down roller,  the upper roller is  convex outward, and the down roller is  concave  inward. When grooving, the rotating down roller drove by motor makes the pipe rotate, and the upper roller moves down by shaking the pump handle and presses the pipe, then forms the groove. Well , rollers are key parts in grooving processes.

What are the specifications of the rollers?

 

The application range of roll grooving machine is different, namely the configuration of upper rollers and down rollers is different. Therefore, it is necessary to clarify the specifications of roll grooving machine and rollers before using.

 

How to distinguish the specifications of the rollers?

 

(1)Roller type: There are two types of rollers, which are upper rollers and down rollers,

 the upper roller is  convex outward, and the down roller is  concave  inward.

(2) Roller size: Check the markings on the rollers for specific size.

(3) Machine model: Different models have different roller configurations. Don't mix them up. Installing the wrong roller can not make the correct groove.

 

(The above shows the spec. of down roller 108-168 for TWG-9 machine)

 

How to choose the correct rollers when make groove on pipe in different diameter?

 

Each roller has its marking showing application ranges of pipe diameter. If the pipe diameter is out of spec of the current roller, replace the correct rollers in time.

 

How to replace the down roller?

 

1. Loosen the relief valve counterclockwise ,the upper roller will return to the initial position

2. Loosen the main shaft fastening nut counterclockwise and take out the down roller

3. Install the corresponding down roller into the main shaft

4. Turn the main shaft fastening nut clockwise into the shaft to screw up the down roller

 

How to replace the upper roller?

 

1. Loosen the relief valve counterclockwise ,the upper roller will return to the initial position

2. Loosen the screw on the side of the upper roller holder

3. Hold the upper roller with one hand, and pull out the upper roller shaft with the other

4.Put the corresponding upper roller into the upper roller holder then insert the upper roller shaft

5. Reinstall the screw

 

The above are the common problems of the rollers of roll grooving machine, Victaulic-Tuwei company has been deeply involved in the pipe tools industry. Roll grooving machines, pipe cutting machines, hole cutting machines, pipe threading machines and other products developed by Victaulic-Tuwei receive a good reputation because of its high quality and good performance. If you have any pipe tools needs, welcome to contact us for more information.

 

 

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