UHMWPE Compression Molding - UHMW Molding

uhmw compression molding

We Provide UHMW Compression Molding Part that Match Your Needs!

UHMW does not melt and flow like typical thermoplastics due to its exceptionally high molecular weight. Compression molding become the most common process. UHMW-PE compression molding involves compacting the powder under high pressure and then heating it to a temperature where the particles fuse together without fully melting, able to create UHMW molding part with excellent wear resistance, low coefficient of friction, and high impact strength.

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What is UHMW Material

UHMW-PE (Ultra-High-Molecular-Weight Polyethylene) is an engineering thermoplastic with exceptionally long molecular chains. The molecular weight can reach to 3.1 million AMUs (atomic mass unit) which give it a unique combination of properties.

The key characteristics include:

  • Extreme wear resistance
  • Ultra-low friction
  • High impact strength
  • Excellent chemical resistance
  • Near-zero water absorption
  • Self-lubricating
  • High toughness
  • Abrasion resistant
  • Impact resistant

Common UHMW Molding Products

  • UHMW gear
  • UHMW conveyor components
  • UHMW chain guide
  • UHMW bushing
  • UHMW-PE roller
  • UHMW-PE pulley
  • UHMW-PE guide rail
  • UHMW-PE wear plate
MATERIAL

UHMWPE

ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE

THERMOPLASTIC
MATERIAL FAMILY SEMI-CRYSTALLINE POLYETHYLENE
DENSITY 0.93-0.94 g/cm³
SHRINKAGE RATE 2.0%-4.0%
TENSILE STRENGTH 20-40 MPa
WORKING TEMPERATURE -150°C to 80°C
COEFFICIENT OF FRICTION 0.10-0.22

Related UHMWPE Molding Resources

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When conventional injection molding reaches its limits due to extremely small part size, complex geometries,

Scientific injection molding is a structured, data-driven approach designed to achieve consistent part quality and