Custom Plastic Injection Molding Services
JeekMould provides custom plastic injection molding services for housings, covers, brackets, connectors, clips, and functional plastic components. Send your CAD file or 2D drawing to get DFM review, mold trial support, and a plastic part molding quote.
If required, JeekMould can sign an NDA before project discussion！
What Is Plastic Injection Molding?
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.
JeekMould keeps batch records and checks molded part dimensions through in-process and final 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 JeekMould for Plastic Injection Molding
JeekMould supports plastic injection molding projects from DFM review and mold making to mold trial, production molding, and final inspection. Our team reviews part structure, material selection, wall thickness, gate position, tolerance requirements, and surface finish before production starts.
Each project is managed with controlled molding parameters, stable tooling, material checks, and dimensional inspection to help reduce molding defects and keep production quality consistent.
DFM review before mold manufacturing
Mold trial and sample validation support
Typical molding tolerance: ±0.05 mm, depending on part geometry and material
ABS, PP, PC, PA, POM, PBT, TPE, TPU, and other engineering plastics
Insert molding, overmolding, and two-shot molding support
Inspection reports, FAI, and PPAP available on request
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 |
JeekMould Plastic Injection Molding Advantages
Flexible & Scalable Production
✅ Prototype, low-volume, and production molding support
✅ Mold lead time based on part size and mold complexity
✅ Engineering plastics and material options for different applications
✅DFM review and design feedback before tooling
Precision, Stability & Repeatability
✅ Mold trial and process adjustment before production
✅ Shrinkage, cooling, gate, and part appearance review
✅ Typical molding tolerance: ±0.05 mm, depending on material and geometry
✅ Moldflow analysis available for selected projects when required
Quality Control and Inspection Support
✅ ISO 9001 and ISO 13485 manufacturing support
✅ Dimensional inspection and visual checks before shipment
✅Inspection reports, FAI, and PPAP available on request
✅ ngineering support from prototype validation to production runs
Engineering Expertise & Technical Support
✅ Early DFM review for plastic part structure, wall thickness, draft angles, and gate position
✅ Material, tolerance, and surface finish suggestions before mold making
✅ old trial feedback and part optimization before production
✅ Project support from prototype validation to production molding
| 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.
Metal + plastics
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. JeekMould supports prototype validation, trial production, low-volume molding, and production molding based on your part design, material, and quantity.
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?
Molded parts can be checked through dimensional inspection, visual inspection, material review, and production records. Inspection reports, FAI, and PPAP can be provided when required.
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.