TPU Injection Molding at Production Scale
TPU injection molding puts elastomeric feel where the user actually touches. Grips, seals, and wheels rely on TPU because it flexes, resists abrasion, and survives oils that would destroy softer rubbers.
TPU behaves like a flexible solid, not a free-flowing resin, so fill and packing need care. Too cold and it shorts; too hot and it degrades. The process window is narrower than for rigid plastics, and we lock it on validation.
What the Capability Numbers Mean for Your Program
The specifications define the envelope in which tpu injection molding stays predictable. A press range of 50T - 800T covers parts from small precision features to larger functional components without splitting the program across vendors. Tolerances of ±0.03 mm describe where critical features are controlled rather than left to chance.
Mold life rated at 300,000 - 1,000,000 shots is a maintenance plan, not a sales figure. Tools are serviced by shot count so wear never surprises a shipment. Tooling lead time of 20 - 40 days reflects complexity and validation, and an annual capacity above 30,000,000 parts signals a floor built for sustained volume.
How a Program Runs
- Design for manufacturability. Geometry, gate location, and draft are reviewed so the part molds predictably and meets function.
- Material and tool selection. Resin grade and tool steel are chosen for the performance, volume, and life the program requires.
- Tool fabrication. The mold is machined, with hot-runner or multi-cavity features where the program specifies them.
- Molding and process setup. Parameters are developed and locked so fill, pack, and cooling stay inside the validated window.
- In-process verification. Critical dimensions are checked with gauges and CMM; results are recorded for traceability.
- Packaging and shipment. Parts are inspected, packed, and shipped against the agreed quality and delivery plan.
Material and Application Fit
Material hardness and grade are matched to flex, abrasion, and regulatory needs. For overmolded grips we validate the TPU-to-substrate bond before production.
Related capabilities
- Overmolding
- Medical Plastic Injection Molding
- Consumer Electronics Injection Molding
- Industrial Plastic Injection Molding