An edgebander runs board through a line of hold-down and pressure rollers, and every one of them is a wear part. Poly Tube is how WRC supplies them: urethane tube in a range of diameters and hardnesses, cut to the width your machine takes.
What you choose
- the outside diameter — the roller face that touches the board
- the inside diameter — the bore that goes over your shaft, bushing or core
- the width, in quarter inches, up to 12"
- the durometer, which is the hardness of the urethane
Nothing is held on a shelf in your size. The piece is cut when you order it, which is why any length in the range costs the same per inch and why nothing has to be a compromise.
Reading the hardness off the machine
A durometer is the hardness of the urethane on the Shore A scale — 40 is soft and rubbery, 95 is nearly rigid. WRC casts each hardness in its own color, so you can read a roller on the machine without a gauge:
| Durometer |
Color |
| 40A |
Clear |
| 50A |
Blue |
| 60A |
Green |
| 70A |
Yellow |
| 85A |
Orange |
| 95A |
Red |
Softer grips more and conforms to an uneven edge; harder lasts longer and marks less. On edgebanders the softer end of the range usually wins, because the roller is holding the board rather than driving it — but the roller that came off the machine is the best guide you have, and its color tells you what it was.
Wider than 12 inches
Poly Tube is cut to a 12" maximum. For a longer roller, order more than one piece and stack them on the shaft — that is how WRC spans multiple feet, and it is why a long roller is not a special order.
Before you order
Measure the roller you are replacing, not the machine's specification sheet: bushings, shafts and keyed cores vary between build years and after any repair. If the size you need is not offered, call 800-541-2317 — WRC pours tube that is not listed online, and can often match a part from the one you have.
