Large Part Injection Molding Services
Large part injection molding is used to manufacture oversized plastic components with consistent dimensional accuracy, structural strength, and repeatable production quality.
Xiamen Goldcattle provides custom large plastic injection molding services for industrial equipment, automotive, medical devices, consumer products, and electrical enclosures. We support parts up to 1500 mm, multiple engineering plastics, mold design, DFM review, and prototype to mass production.
Why Choose Goldcattle for Oversized Molding?
Manufacturing large plastic parts requires heavy-tonnage machinery and advanced thermal management to prevent warpage. Goldcattle optimizes cooling layouts, gate placements, and structural ribs, ensuring high-quality production for demanding global industries.
Our Manufacturing Capabilities
| Capability | Value |
|---|---|
| Max Part Size | 1500 mm |
| Mold Weight | Up to 25 Tons |
| Machine Tonnage | 500 – 2500 Tons |
| Mold Material | P20 / H13 / S136 |
| Mold Life | 300K – 1M Shots |
| Tolerance | ±0.05 mm |
| Surface Finish | SPI / VDI |
High-tonnage machinery ensuring structural integrity.
Supported Engineering Plastics
PC (Polycarbonate)
PC+ABS
PP (Polypropylene)
HDPE
PA6 / PA66 (Nylon)
POM
PEEK
PVC
TPE / TPU
Glass Filled Nylon
Material Selection: Glass-filled nylons are ideal for structural automotive components, while PP and HDPE are cost-effective for logistics and agriculture. PC/ABS blends provide excellent impact resistance for industrial enclosures.
Large Part Manufacturing Process
DFM Review
Optimize wall thickness, ribs, and draft angles to prevent sink marks.
Mold Design
Advanced thermal layout and gate placement for uniform filling.
Tooling
Precision CNC machining of high-strength steel molds.
Trial Samples
First article inspection and dimensional validation.
Production
Consistent, repeatable mass production molding.
Inspection
Strict quality control and final audit before shipment.
Delivery
Secure packaging and global export logistics.
Design for Manufacturability (DFM)
Manufacturing large plastic parts presents unique challenges. Our engineering team reviews your CAD files to address:
- ✔
Wall Thickness: Preventing warpage and sink marks. - ✔
Rib Design: Enhancing structural integrity without thick sections. - ✔
Draft Angle: Ensuring smooth ejection from the mold. - ✔
Gate Location: Optimizing flow to minimize weld lines. - ✔
Cooling Layout: Reducing cycle time and thermal stress.
Large Part Molding vs. Standard Molding
Industry Applications
Case Studies
Frequently Asked Questions
How large can injection molded parts be?
Large parts are typically considered to be anything over 500 mm. At Goldcattle, we can manufacture components up to 1500 mm using our heavy-tonnage machines up to 2500 tons.
What tolerances can you achieve for large parts?
We maintain strict tolerances of ±0.05 mm for critical dimensions. However, nominal tolerances may vary slightly based on material selection and overall part geometry.
How long does tooling take for large molds?
Tooling typically requires 6 to 10 weeks depending on complexity, mold material, and DFM review adjustments.
Do you provide mold flow analysis and export molds?
Yes, we provide comprehensive mold flow analysis during the DFM phase. We support export molds and can seamlessly integrate tooling transfers to your facility if required.
Can you sign an NDA and provide First Article Inspection (FAI)?
Absolutely. We strictly respect intellectual property by signing NDAs. We also provide full First Article Inspection reports before mass production begins.
