SERVICES
POM Injection Molding
We mold POM (Acetal) (and compatible grades) for functional, structural and aesthetic parts — from low-volume bridge production to high-volume runs.
WHAT WE OFFER
What We Offer
HOW IT WORKS
From Inquiry to Delivery
CHALLENGES
Challenges This Service Solves
FAQ
POM Injection Molding — FAQ
Can you help with product development?
Yes. From design review and material selection to prototyping, tooling and mass production — our engineers support you through the entire product lifecycle.
Do you ship internationally?
Yes. We ship worldwide via air and sea freight, with export packing, documentation and delivery tracking handled by our team.
What quality inspections do you perform?
First article inspection, dimensional measurement, material verification and surface checks — with inspection reports provided per batch. Full details are agreed before production.
What is the difference between rapid and production tooling?
Rapid tooling uses softer materials and simplified construction for fast, low-cost validation runs (hundreds to low thousands of parts). Production tooling uses hardened steel for high-volume, long-life programs.
How long does injection mold making take?
Rapid tooling prototypes can be ready in days; production tooling typically takes several weeks depending on complexity, cavity count and steel grade. We confirm a detailed schedule with your quotation.
Do you provide DFM feedback?
Yes. Every quotation includes a design-for-manufacturing review: draft angles, wall thickness, gate and weld-line locations, tolerance recommendations and cost-saving suggestions — before any tooling is cut.
What file formats do you accept?
We accept STEP, IGES, STL, X_T and 2D drawings (PDF or DWG). A 3D model lets us quote most accurately; 2D drawings are used to confirm critical tolerances and specifications.
How do I get a quote?
Upload your 3D file (STEP, IGES, STL or X_T) through the quote page, or email it directly. Our engineers review the design, run a DFM check and send you a detailed quotation — usually within one business day.
RELATED SEARCHES
What Buyers Search
* Keywords from Semrush competitor data — one page per search intent.
POM: The Plastic That Replaces Metal
POM (acetal / Delrin) is the closest plastic to metal for gears and moving parts — data per FirstMold's POM page (https://firstmold.com/pom-injection-molding/).
High rigidity and strength — metal-like stiffness in thin sections, ideal for gears, cams and levers.
Self-lubricating with low friction — runs dry against steel and other plastics with minimal wear.
Excellent fatigue resistance — survives repeated bending and impact in clips, springs and latches.
Good wear resistance and dimensional stability — FirstMold holds defect rates under 1 % in mass production.
Thermal stability — keeps properties across automotive temperature ranges.
Modified variants extend it further — toughened, wear-resistant (PTFE/oil-filled) and UV-protected grades.
Excellent spring-back — POM acts like a spring in clips and snap-fits, returning to shape after repeated deflection.
Dimensional stability — low moisture uptake keeps tolerances stable in humid environments.
Creep resistance — keeps clamp forces and preload in fasteners and press-fits over time.
Low noise — POM gears run quieter than metal in motors and actuators.
Metal-replacement economics — POM costs far less than machined brass or steel for high-volume gears.
POM Processing Parameters We Control
Shrinkage window (1.5–2.5 %) and process ranges per published POM datasheets; MOLDITQUICK runs POM on Sodick presses with in-house tooling.
| Parameter | Recommended Range | Why It Matters |
|---|---|---|
| Barrel temperature | 190–220 °C | Full plasticization without thermal degradation of the acetal chain. |
| Mold temperature | 80–100 °C | Hot molds improve surface and dimensional consistency of crystalline POM. |
| Mold shrinkage | 1.5–2.5 % | Higher than most engineering plastics — cavity sizing and gate design compensate. |
| Drying | 80–90 °C, 2–4 h | Not hygroscopic, but surface moisture must be removed for clean surfaces. |
| Gate & runner | Short, generous gates preferred | POM solidifies fast — generous gates keep hold pressure effective. |
| Venting | Short, wide vents | Processing gases must escape the cavity to prevent burning. |
| Ejection & draft | 0.5–1° draft minimum | Rigid POM needs draft to release cleanly without scuffing. |
POM Grades We Mold
Homopolymer vs copolymer and modified grades per FirstMold's POM material expertise (https://firstmold.com/pom-injection-molding/).
Where POM Injection Molding Pays
Automotive & EV
Door lock mechanisms, window lift gears and sliders, seat belt components, power steering parts and suspension bushings.
Machinery
Gears and sprockets, conveyor components, valve bodies, rollers, precision screws and nuts, sliding and guiding elements.
Electrical & electronics
Switch components, coil bobbins, light sockets, relay cases, cable clips and wire-harness parts.
Precision instruments
Optical lens mounts, analytical instrument components, surgical instruments, sealing rings and camera gears.
Consumer goods
Pen barrels and caps, zippers, toys, mascara wands and fire hydrant components in corrosion-resistant POM.
Fluid handling
Pump impellers, valve seats and fittings that hold tolerance in water and fuel contact.
Fasteners
Precision screws, nuts and inserts molded in one piece with bosses.
Office & furniture
Chair mechanisms, drawer slides and height-adjuster gears that flex and slide for years.