Products Categories

Automotive Door Interior Trim Injection Mold — BYD Tier 1 Supplier Manufacturer

Jinlong Electric has manufactured molds for a wide range of automotive interior and exterior trim components — serving leading automotive brands including BYD (as a certified Tier 1 supplier) and other major international automotive manufacturers.

Based on our production experience, automotive interior and exterior trim molds cover components such as door panel trims, instrument panel components, center console parts, bumper trims, fender trims, lamp housings, mirror housings, water troughs, and air filter covers. These components require precise dimensional control, excellent surface quality, and long mold life to withstand high-volume automotive production demands.

This case showcases Jinlong's capabilities in manufacturing automotive interior and exterior trim injection molds — from design optimization through to mass production delivery.

product details

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

Back to Automotive Molds

Automotive Door Interior Trim Injection Mold — BYD Tier 1 Supplier Manufacturer

Technical Specifications

Technical Process

Step 1: Inquiry & Automotive Drawing Review

Step 2: Automotive DFM Analysis

Step 3: Mold Design — Automotive Grade

Step 4: Large-Format Precision Machining

Step 5: Assembly & Automotive Trial

Step 6: Sample Approval & Documentation

Step 7: After-Sales & Engineering Support

Customization Capabilities

Quality Assurance

Home Appliance Equipment Mold — OEM/ODM Molding Services

Washing Machine & Air Conditioner Mold — Home Appliance Injection Mold Manufacturer

2K Two-Shot Injection Mold Dual-Color Molding for Automotive & Power Tools

Medical Diagnostic Equipment Injection Mold

Precision Medical Components Injection Mold — Medical-Grade Precision Molding