Custom Plastic Injection Molding Service
Jeek runs precision plastic injection molding for automotive, medical, and consumer products.
Each part is molded under stable process conditions to maintain uniform dimensions and surface quality.
Tooling, materials, and molding parameters are reviewed by engineers before production starts to ensure part consistency and repeatability.
Jeek supports both prototype validation and steady production runs with controlled cycle time and clean molding environments.
If required, Jeek can sign an NDA before project discussion！
What is Plastic Injection Molding Service
Plastic injection molding forms thermoplastic parts by heating pellets and injecting the melt into a closed steel mold under pressure.
Once cooled, the part solidifies with the same precision and surface texture defined by the cavity.
The process is suitable for producing a wide range of components—from thin-wall housings to structural parts—with repeatable tolerances down to ±0.05 mm.
ABS, PC, PA, and POM are commonly used for parts requiring mechanical strength, heat resistance, or dimensional stability.
Jeek maintains process traceability for every batch and verifies part accuracy through in-line dimensional inspection.
Injection Molding Process Overview
Melt Preparation
Plastic pellets are heated and melted in the barrel, forming a uniform molten mixture before injection.
Injection Molding
The molten plastic is injected into the closed mold cavity under high pressure to fill all features of the part.
Pressure Holding and Cooling
Holding pressure prevents shrinkage as the plastic cools and solidifies, forming its final dimensions.
Demolding and Part Removal
After cooling, the mold opens and ejects the finished part for inspection or downstream assembly.
Why Choose Jeek for Plastic Injection Molding
Jeek operates advanced CNC machining centers and precision injection molding systems, covering every stage from rapid tooling to volume production.
Each part is molded and inspected under controlled conditions to ensure consistent quality and dimensional accuracy.
With strict process control and experienced engineers, Jeek delivers repeatable, high-precision molded parts that meet global manufacturing standards.
Rapid mold fabrication within 7–10 days
Mold tolerance up to ±0.001 mm
Part tolerance within ±0.005 mm
Two-shot and insert molding supported
RoHS & REACH certification and full dimensional inspection available
Available Plastic Materials
| Material Type | Key Properties | Typical Applications |
|---|---|---|
| ABS | High strength, excellent moldability | Automotive housings, electronic enclosures |
| PC (Polycarbonate) | High transparency, impact resistance | Light covers, medical device housings |
| PA (Nylon) | Wear resistance, toughness | Gears, brackets |
| POM (Acetal) | Excellent self-lubrication | Sliding components, mechanical connectors |
| PMMA (Acrylic) | High transparency, UV resistance | Display panels, optical parts |
| PEEK | High strength, heat resistance | Medical instruments, aerospace components |
Jeek Plastic Injection Molding Advantages
Flexible & Scalable Production
✅ Prototype-to-production flexibility
✅ 72-hour mold turnaround
✅ 60 + engineering-grade resins available
✅Direct DFM and design optimization support
Precision, Stability & Repeatability
✅ ± 0.001 mm mold precision capability
✅ Shrinkage tuning for dimensional consistency
✅ 1 000 000 + validated molding cycles
✅ Moldflow simulation applied to every tool
Strict Quality Management System
✅ ISO 9001 / ISO 13485 certified operations
✅ Real-time inspection data logging
✅ 100 % dimensional & visual verification
✅ Full traceability across production
Engineering Expertise & Technical Support
✅ 20 + years industry experience
✅ Early-stage DFM / feasibility review
✅ 70 % reduction in design iterations
✅ Continuous improvement culture
| Capability | Capability | ||
|---|---|---|---|
| Max Part Size: | 1600 × 1400 × 500 mm | Min Part Size: | 1 × 1 × 1 mm |
| Material Options: | 200+ engineering resins including PC-ABS, Nylon-GF, TPU, PEEK, PPS, PMMA, etc. | Injection Tonnage: | 60T – 1900T clamping force |
| Typical Cycle Time: | 15–20 s per shot for standard geometry | Mold Lead Time: | 7–15 days depending on complexity |
Plastic Injection Molding
200+ resins, textures; 60T–1900T scalability.
3D Printing
Fast iterations; complex features; post-finish required.
CNC Machining
Structural parts; wide finishes & materials.
Full comparison
| Criteria | Plastic Injection Molding | 3D Printing | CNC Machining |
|---|---|---|---|
| Best Use Case | Mass production & low unit cost (>5k pcs). | Rapid prototypes; complex geometries. | Medium batches; high precision. |
| Typical Lead Time | Tooling 7–15 days. | 1–5 days. | 3–10 days. |
| Material Options | 200+ plastics. | 10–20 polymers. | 100+ metals & plastics. |
| Tolerances | ±0.05 mm typical. | ±0.10–0.25 mm. | ±0.01–0.05 mm. |
| Surface Finish | Textured or SPI A–D. | Layer lines visible. | Anodize, bead blast, polish. |
Plastic Injection Molding Service FAQs
What is the typical lead time for injection molding production?
Lead times vary based on project complexity. Mold manufacturing typically takes 7-15 days, followed by molding production based on part quantities. Of course, once the mold is finalized, production moves quickly.
What materials are available for plastic injection molding?
Jeek supports over 200 engineering plastics, including ABS, PC, PA, POM, PMMA, PEEK, TPU, reinforced composites, and medical-grade materials.
Can you handle small-batch production?
Yes. We support the entire process from prototyping and trial production to mass production (up to millions of parts).
Do you provide DFM support and engineering advice?
Yes. Our engineers review your design for manufacturability, tolerances, draft angles, and material selection to reduce costs and enhance reliability.
How do you ensure part quality?
Rigorous quality inspections, including dimensional measurement, visual inspection, and material traceability—all meeting ISO standards.
Can we tour your factory?
Absolutely! We can arrange production line tours, quality system presentations, and on-site discussions. Simply schedule an appointment with our sales team in advance.