Polyurethane Molding

Since 1988 as Alshin Tire and 2000 as CEW, we have been supplying micro-cellular polyurethane tires and products to varied sectors of medical, manufacturing, and industrial markets. As the most trusted custom flat free tire manufacturer, we strive to provide innovative and high preforming SHOX® and AERO-FLEX® PU tires that perform for the people who rely on them.


Custom Injection Molding ServicesSpecifications
General Capabilities:Assembly Design Engineering Production Prototype
Product Capabilities:Large Components Multi-Component Small Parts
Mold Process Type:Reaction Injection Moulding (RIM)
Material:Aeroflex Polyurethane Shox® High Performance Polyurethane Flexible Polyurethane Foams Rigid Polyurethane Foams
Part Weight:Max: 11 lbs. / 5 Kg Min: 1.76 oz / 50g
Part Length:Max: 36in / 914.4 mm Min: 2in / 50.8 mm
Part Width:Max: 5in / 127 mm
Additional Services:Mold Making Mold Making Rapid Prototyping (SLA, 3d printing)
Intended Applications:Tires Headrests Arm pads Shoe Pads PU Seats
Quality Assurance:ISO 9001:2008


We possess a combination of rich engineering knowledge, advanced manufacturing technique, and quality tested raw materials to promptly manufacture and supply tires that match customers’ expectations.  We also have the capabilities to provide a vast range of custom polyurethane solutions. Our low-pressure PU system coupled with our experience in flexible and rigid polyurethane foams allows us to tackle many non-wheel solutions such as:

  • PU Seat pads
  • PU Arm rests
  • PU Headrests
  • PU Shoe pads
  • And more

We can also include metal inserts and brackets into your design.  Secondary operations including trimming and painting ensure you are provided with a complete product.  Please feel free to explore our website and the various product offerings.

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