Plastic Injection Molding
Custom Injection Molding Services
Turn approved designs into repeatable plastic parts with coordinated DFM, mold tooling, resin selection, molding and inspection. Upload your drawing for a clear tooling and production quote.
Upload Your Part Drawing →Molding Process
From Tooling Review to Approved Parts
Molten resin fills a closed mold, is packed and cooled, then releases as a repeatable finished shape.
DFM and Tooling
Review wall thickness, draft, ribs, bosses, gates, ejectors, shrinkage and cosmetic requirements.
Resin Preparation
Dry and prepare the approved resin, reinforcement and color system under controlled conditions.
Molding Cycle
Control melt temperature, filling, packing and cooling to stabilize dimensions and appearance.
Inspection and Release
Trim, inspect and approve the molded parts before secondary work, assembly or shipment.
Molding Resins
Common Injection Molding Materials
Select the exact grade by load, impact, heat, chemicals, friction, appearance, flame rating and compliance requirements.
ABS
Balanced impact resistance and appearance for housings, covers, handles and consumer products.
Polycarbonate (PC)
High impact strength and optional transparency for guards, lenses and durable enclosures.
Polypropylene (PP)
Low density, chemical resistance and living-hinge performance for containers and closures.
PA / Nylon
Strong, wear-resistant grades for gears, clips, bearings and reinforced structural components.
POM / Acetal
Low friction and dimensional stability for precision gears, latches, valves and sliding parts.
Polyethylene (PE)
Chemical resistance and toughness for caps, containers, guides and fluid-handling parts.
TPE / TPU
Flexible grip, sealing and impact performance for soft components and overmolded features.
PEEK
High-temperature and chemical performance for specialized aerospace, medical and industrial parts.
Injection Molding Capabilities
| Nominal injection amount | 50–5000 g |
|---|---|
| Typical dimensional tolerance | ±0.05–0.20 mm |
| Controlled precision features | From ±0.05 mm after DFM review |
| Minimum wall reference | From 0.5 mm; resin and flow-length dependent |
| Stated mold-size range | 400–1800 mm |
| Tooling range | Prototype aluminum and production steel molds |
Design for Molding
Injection Molding DFM Guidelines
Resolve filling, cooling, ejection and cosmetic risks before mold construction begins.
Uniform Walls
Maintain consistent sections and use gradual transitions to reduce sink, warpage and uneven cooling.
Draft Angles
Add draft to vertical faces so the part releases cleanly without drag marks or ejection damage.
Ribs and Bosses
Use proportioned ribs and supported bosses instead of thick solid sections that cool unevenly.
Radii and Corners
Replace sharp internal transitions with radii to improve resin flow and reduce stress concentration.
Gates and Ejectors
Position gates and ejectors around filling, appearance and functional-surface requirements.
Shrinkage Allowance
Size the mold for the selected resin, filler content, flow direction and expected shrinkage.
Molded Part Applications
Repeatable Plastic Parts Across Industries
Injection molding is suited to detailed plastic parts that require repeat geometry, integrated features and scalable production.
Automotive
Interior components, electrical housings, clips, ducts and reinforced brackets.
Medical Equipment
Device housings, handles and controlled-material components for non-implant applications.
Consumer Electronics
Enclosures, buttons, frames, connectors and wearable-device components.
Industrial Equipment
Guards, knobs, gears, fixtures, fluid components and protective covers.
Consumer Products
Closures, handles, appliance parts, packaging components and durable accessories.
Electrical Systems
Connector bodies, insulating covers, cable-management parts and sensor housings.
Manufacturing and Inspection
From DFM Review to Final Inspection
Critical requirements are defined before tooling and verified through first-article and production controls.
DFM and Material Control
Approve geometry, resin, color, finish and critical dimensions before tooling release.
Tool and Process Validation
Confirm mold operation, filling, packing, cooling, ejection and first-article results.
Dimensional Inspection
Use suitable dimensional and optical methods for drawing-defined critical features.
Production and Delivery
Control approved process settings, appearance, protection, labeling and packing.
Injection Molding FAQ
Plan Your Injection Molding Project
What files are needed for an injection molding quote?
Send a 3D model and 2D drawing with resin, color, finish, quantity, annual demand and critical quality requirements.
Can an existing injection mold be transferred?
Yes, after reviewing mold ownership, dimensions, runner system, machine compatibility, condition and available mold records.
Can molded color and texture be customized?
Yes. Color matching, polished surfaces and molded textures can be specified before tooling release and sample approval.
What affects injection mold cost?
Part size, cavities, mold steel, side actions, inserts, runner system, texture, tool life and validation requirements drive tooling cost.
What determines injection molding lead time?
DFM changes, resin availability, mold complexity, sample revisions, testing and secondary operations determine the confirmed schedule.
Can inserts and secondary operations be included?
Yes. Projects can include insert molding, machining, printing, coating, assembly and drawing-based inspection.