Shanghai Pepsen manufactures polyurethane spring tube as per customer requirements including hardness, dimensions and applications. Hardness is normally 50A-95A, but can vary as well as color.

What is polyurethane spring tube?

It is called so because of excellent resilience, just like spring.

Spring tubes are usually used in applications where there are vibration, corrosion and magnetism, polyurethane spring tubes are used to replace steel springs. Also, urethane springs have proven to be safest, most efficient and reliable compression material for punching and stamping.

Urethane spring tube material is a polyether based polyurethane that can be made by increasing or decreasing the diameter, wall thickness and hardness while keeping the same amount of compression.

What are advantages of polyurethane spring tube?

Abrasion resistance

Great resilience

High load capacity

Protection from marring/galling

Longer service life

Noise abatement

Vibration damping and shock absorbing

Why you choose PEPSEN polyurethane spring tube?

In-house prepolymer manufacturing

Custom hardness, dimensions and formulations

Hardness ranging from Shore 5A to 98A to 80D. Ester or Ether based

Little or no mold fee is required as we have most of them in stock.

Over 30 stocked color options and customized colors available.

In House Machining Services to hold tight tolerances after casting.