'Quality first' in mind, we work closely with our customers and provide them with efficient and professional services for Composite Material Products, Composite Thrust Plates, Piston and Rod Seals. We will firmly grasp the new opportunities of global development and insist on mutual benefit and win-win development. People-oriented, good at learning is the source of our enterprise, seeking truth and pragmatic, bold innovation is our noble character.
Our back-up rings can be made from pure PTFE or filled other materials to meet different working conditions.
Product parameter
Material type | Color | Density (g/cm³) | Linear thermal expansion factor | Tensile Strength | Elongation | Compressive strength | Bending strength | Impact strength without Notch | Friction and wear properties (dry friction) | |||
Coefficient of friction | Wear scar width | Wear loss | ||||||||||
DF-101 | White | 2.1-2.2 | 10-12 | 20-30 | ＞250 | 12 | 11-14 | 16 | ＜0.1 | ≥20 | ≥254 | |
Product application
In a sealing application, backup rings provide added extrusion resistance and prevent damage to o-rings and seals when subjected to high pressures, larger extrusion gaps, and/or high temperatures.
We have been accumulating experience and actively introducing new technologies. We always believe that only by continuously satisfying the various needs of customers and providing them with excellent Gdk High Quality NBR Back up Ring 2K2961 for Cat and services can we gain a place in the future market competition! We collaborate with external partners to actively innovate products and business models, and gradually develop new high-value-added businesses. We are determined to make our own contributions to the progress of Chinese national enterprises with emphasis on honesty, reputation, and service.
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