China Automotive Door Interior Trim Injection Mold - Top Suppliers and Factory for BYD Tier 1 Components
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Application | Automotive interior & exterior trim components |
| Mold Type | Single-cavity / multi-cavity injection mold |
| Mold Size | Up to 3,200 × 1,800 × 1,600mm |
| Mold Steel | S136, 718H, P20 (per requirement) |
| Cavity Layout | Single-cavity to multi-cavity |
| Surface Finish | Class-A automotive grade |
| Expected Mold Life | 100,000 – 1,000,000+ shots |
| Tolerance | ±0.01mm |
| Gate System | Hot runner, submarine gate, side gate |
| Quality Documentation | FAI report, CMM report, material certificate |
Technical Process
Step 1
Inquiry & Automotive Drawing Review
Customer submits automotive component drawings. Jinlong's team reviews the design for compliance with automotive interior/exterior trim specifications and provides a quotation within 3 business days.
Step 2
Automotive DFM Analysis
Jinlong conducts a complimentary DFM analysis — focusing on Class-A surface accessibility, structural rib design, clip feature integration, and fit-gap requirements with adjacent automotive components. Feedback delivered within 48 hours.
Step 3
Mold Design — Automotive Grade
Mold designs developed with automotive-grade engineering standards using SolidWorks, Pro/ENGINEER, UG, or CATIA. Special attention given to gate location for optimal flow on large surface areas and ejection system design for trim components. Designs submitted for customer approval.
Step 4
Large-Format Precision Machining
Molds machined in Jinlong's tool room using high-speed CNC for large cavity surfaces, Charmilles EDM for intricate trim features and texturing, and slow-speed wire-cut for core/cavity inserts. Large-format machining capabilities up to 3,200 × 1,800 × 1,600mm.
Step 5
Assembly & Automotive Trial
Mold assembled with emphasis on flatness control for large parting surfaces. Trials conducted on Jinlong's injection machines with tonnage matching component size. Samples evaluated for surface quality, dimensional fit with assembly neighbors, and Class-A surface inspection.
Step 6
Sample Approval & Documentation
Samples measured on CMM with full FAI documentation for automotive approval. Upon customer approval, mold accepted and shipped with complete quality documentation.
Step 7
After-Sales & Engineering Support
Long-term support for design changes, engineering modifications, and spare parts throughout the automotive production lifecycle.
Customization Capabilities
| Category | Options |
|---|---|
| Mold Steel | S136, 718H, P20, SKD11 |
| Cavity Layout | Single-cavity, multi-cavity, family molds |
| Surface Finish | Class-A polished, textured, soft-touch compatible |
| Gate System | Hot runner, submarine gate, side gate, direct gate |
| Cooling | Standard cooling, high-efficiency channels, conformal cooling |
| Materials | ABS, PC, PP, PA66, PC/ABS, and other engineering plastics |
| Size Range | Up to 3,200 × 1,800 × 1,600mm |
Quality Assurance
ISO 9001:2016 and IATF 16949:2016 certified
Full CMM dimensional inspection with traceable records
FAI report included with every mold
Material certificates for all mold steels
Frequently Asked Questions
What is the maximum mold size capability for automotive components?
Jinlong can manufacture large-format injection molds with sizes up to 3,200 × 1,800 × 1,600mm, making it fully capable of producing large automotive interior and exterior trim components.
Which mold steel options are available for custom automotive molds?
We offer high-quality, industry-standard mold steels including S136, 718H, P20, and SKD11. The selection depends on your project requirements and expected mold life.
How does Jinlong ensure automotive-grade design quality?
Our engineering team develops designs using industry-standard CAD software like SolidWorks, Pro/ENGINEER, UG, and CATIA. We conduct detailed DFM analyses focusing on Class-A surface accessibility, structural rib design, clip feature integration, and fit-gap requirements.
What quality documentation is provided with the mold delivery?
Every mold is delivered with a complete quality documentation package, including FAI (First Article Inspection) reports, full CMM dimensional inspection records, and traceable material certificates for all mold steels used.
What is the typical timeline for the DFM analysis and quotation?
Upon receiving your component drawings, we provide a quotation within 3 business days. A complimentary, detailed DFM analysis is delivered within 48 hours of initial engagement.
What certifications does Jinlong hold for automotive manufacturing?
Jinlong is fully certified to ISO 9001:2016 and IATF 16949:2016 standards, ensuring our mold design, manufacturing, and trial processes meet strict global automotive quality requirements.