Automotive Injection Molding
JUCHENG provides IATF 16949 certified automotive injection molding services, delivering high-performance components for the global supply chain. As a strategic automotive plastic part manufacturing partner, we specialize in precision injection molding for both interior aesthetics and critical under-the-hood systems.
IATF 16949 / ISO 13485 / ISO 14001 VALIDATED

3,000T
Max Tonnage
2,500mm
Max Part Length
50% GF
Reinforced Cap
CPK>1.67
Process Index
Specialized Solutions for Vehicle Systems
We utilize advanced molding technologies to meet the automotive industry's demands for lightweighting, durability, and aesthetics.
2K & Overmolding
Combining rigid structures with soft-touch elastomers for integrated seals, ergonomic controls, and vibration dampening components that survive extreme vehicle lifecycles.
learn more →Insert Injection Molding
Precisely encapsulating metal lead frames, bushings, and electronic pins into high-strength housings for sensors, connectors, and mechatronic modules.
learn more →Gas-Assisted Molding
Optimized for large, thick-walled parts like exterior door handles and interior grabs, eliminating sink marks while reducing component weight by up to 40%.
learn more →Why Tier-1 Suppliers Partner with JUCHENG
Our infrastructure is engineered to solve the complex supply chain challenges of the automotive sector.
01
IATF 16949 Certified Quality
Our facility operates under the highest automotive quality standard. We focus on defect prevention, reduction of variation, and full PPAP Level 3 documentation support.
02
In-House 5-Axis Tooling
We do not outsource automotive molds. Our 25+ 5-axis CNC machines enable us to build complex tools in-house, ensuring T1 samples in as fast as 10-15 business days.
03
Zeiss CMM Verification
To meet automotive tolerances, every part is verified in our metrology lab using Zeiss CMMs, ensuring absolute accuracy for safety-critical components.
04
One-Stop Post-Processing
From ultrasonic welding for hermetic seals to precision laser etching and assembly, we manage the entire production cycle under one roof.
Common Automotive Applications

Interior Dashboard Components
Aesthetic/Functional
Exterior Door Handles & Grilles
Class-A Finish
HVAC Sealing & Ducting
2K/LSR
Under-the-Hood Sensor Housings
High-Temp Resins
EV Battery Connectors
Lighting Bezels & Lens Housings
Interior Dashboard Components
High-Gloss
Automotive Grade Materials Guide
Meeting the zero-defect standards of automotive injection molding services requires rigorous process control. We support car interior trim molding and automotive sensor enclosures with full PPAP Level 3 documentation and dimensional repeatability verified by Zeiss CMM.
| Resin Type | Automotive Application | Key Benefit |
|---|---|---|
| PA66 + GF30 | Engine Covers, Brackets | High mechanical strength & heat resistance |
| PBT | Electrical Connectors, Sensors | Excellent insulation & chemical resistance |
| PC / ABS | Interior Trim, Consoles | Superior impact strength & surface finish |
| PPS | Fuel Systems, Cooling components | Extreme chemical & thermal stability |
| TPV / LSR | Weather Seals, Gaskets | Long-term sealing & NVH reduction |
Automotive Molding FAQs
Do you support PPAP documentation?
Yes. As an IATF 16949 certified manufacturer, JUCHENG provides full PPAP (Production Part Approval Process) support up to Level 3, including FMEA, Control Plans, and Dimensional Results.
How do you ensure zero-flash on complex automotive parts?
Zero-flash is achieved through our in-house tooling precision. Our 25+ 5-axis CNCs machine mold shut-offs to micron tolerances, and we use Zeiss CMMs to verify mold fitment before injection.
Can you mold high-temperature materials for engine components?
Absolutely. We have extensive experience molding PPS, PEEK, and glass-filled Nylon (PA66+GF30) for under-the-hood applications requiring extreme heat and chemical resistance.
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