High-Precision Custom Injection Molding & Tooling Solutions

Eliminate supply chain friction with our custom injection molding services and vertically integrated tooling. As a leading injection molding manufacturer in China, JUCHENG provides high-quality custom plastic parts from 15T to 3000T with a 7-10 day lead time.
Injection Molding with In-House Tooling

Our Core Manufacturing Pillars

In-house mold manufacturing powered by 5-axis machining, combined with reliable low-volume injection molding under one roof.
Custom Mold Making

Custom Mold Making

In-house 5-axis CNC and EDM tooling for micron-level precision and rapid turnarounds.
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Standard Molding

Standard Molding

High-volume production utilizing 35+ advanced presses ranging from 50T to 650T.
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Insert Molding

Insert Molding

Seamlessly encapsulating metal threads and electronic components into plastic parts.
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Cleanroom Molding

Cleanroom Molding

ISO Class 8 particle-controlled production for sterile medical and optical devices.
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Scalable Injection Production

Two-Shot (2K) Molding

Simultaneous molding of two materials in a single cycle to eliminate assembly steps.
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Professional-surface-finishing-options-for-custom-injection-molded-parts

Surface Finishes

Post-molding surface treatments, including texturing, polishing, and shielding.
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About

Jucheng Injection Molding specializes in low-volume injection molding and in-house mold manufacturing for demanding applications. By controlling tooling, molding, and inspection under one roof, we help customers reduce development risk, shorten lead times, and achieve consistent quality—especially for automotive and medical plastic parts.
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Global Certifications

Our core manufacturing pillars are built for precision injection molding. Whether you need standard molding services or complex insert injection molding, we ensure every part meets IATF 16949 standards.

Quality & Inspection

Quality is embedded into every stage of our process—from mold manufacturing to injection molding and final inspection.
Supported by a structured quality management system and advanced inspection equipment, we ensure dimensional accuracy, traceability, and reliable part performance for critical applications.
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Quality & Inspection

Your Path from Concept to Global Delivery

DFM & Quoting

Submit your CAD files. Our engineers provide a free DFM analysis and a detailed quote within 24 hours to optimize part geometry and reduce costs.

Precision Tooling

Utilizing 25+ in-house 5-axis CNC machines, we build your mold with micron-level accuracy. Rapid bridge tooling is completed in as fast as 10-15 days.

T1 Sampling & QC

We perform the first trial (T1) and conduct rigorous Zeiss CMM inspection. Samples and full dimensional reports are sent for your final approval.

Mass Production

Once approved, we launch automated mass production across our 35+ presses, followed by secondary operations and secure global logistics.

Industries Served

Precision-molded plastic components for automotive, medical, industrial, and electronics applications, engineered for reliability, accuracy, and consistent performance.
Automotive

Automotive

Precision-molded plastic components designed for durability, dimensional stability, and consistent production performance.
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Medical Devices

Medical Devices

High-accuracy injection molding solutions supporting reliability, cleanliness, and tight tolerance requirements.
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Robotics

Robotics

High-precision skeletal components and lightweight mechatronic housings engineered for structural rigidity and peak operational agility.
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Aerospace

Aerospace

Mission-critical components molded from high-performance polymers, optimized for extreme weight reduction and maximum reliability in harsh flight environments.
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Expertise in 200+ Engineering Resins

Wide range of materials and surface treatments to meet your specific requirements.

Engineering

High-strength POM, Nylon (PA6/66), PC, and PBT for robust industrial parts.
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High-Performance

Expert processing of PEEK, Ultem (PEI), and PPS for metal replacement in extreme heat.
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Elastomers

Advanced TPE, TPU, and Liquid Silicone (LSR) for seals, gaskets, and ergonomic grips.
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Reinforced

Glass-filled (GF) and Carbon-filled (CF) resins for maximum structural rigidity and stiffness.
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Commodity Plastics

High-volume, cost-effective solutions utilizing PP, PE (HDPE/LDPE), PS, and ABS for everyday consumer and industrial products.
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Why Partner With Jucheng Injection Molding?

In-House Tooling Mastery

We do not outsource our molds. Our dedicated tool room features 25+ high-end 5-axis CNC machines, guaranteeing total control over quality and delivery speed.

Dual Industry Certifications

Operating under strict IATF 16949 (Automotive) and ISO 13485 (Medical) standards, we provide the traceability and quality required for high-stakes industries.

Certified “Zero-Defect” Quality

From material verification via spectrometer to final Zeiss CMM validation, our quality system is engineered to eliminate defects at the source.

Rapid Market Entry

Our agile manufacturing process allows us to deliver T1 samples in as fast as 7 business days, helping you outpace the competition and launch faster.

Frequently Asked Questions

For rapid/bridge tooling, we deliver T1 samples in 10-15 business days. For full-scale production steel molds (Class 101), the lead time ranges from 3-6 weeks depending on complexity.

Yes. As an IATF 16949 certified manufacturer, we provide full PPAP Level 3 documentation, including FMEA, control plans, and Zeiss CMM dimensional reports.

Our 35+ injection presses range from 50T to 650T clamping force, allowing us to mold parts from tiny micro-components up to large structural housings and panels.

We maintain 100% lot traceability. Every material batch is verified by our in-house spectrometer, and we provide material COAs (Certificate of Analysis) with every order.

From Our Technical Blog

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Start Your Injection Molding Project with Confidence

Looking for a reliable partner for low-volume injection molding or rapid mold manufacturing?
Our engineering team is ready to support your project.
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