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    Plastic Injection Mold Manufacturing Process — LONGXIANG GROUP LIMITED

    Jul 13,2026

    Plastic Injection Mold Manufacturing Process — LONGXIANG GROUP LIMITED

    Turning Your Ideas Into Precision Plastic Injection Molds

    From concept to production — LONGXIANG GROUP LIMITED delivers professional plastic injection mold manufacturing with decades of expertise, minimizing risks and turning your vision into reality.

    Get Your Free Mold Consultation 

    Complete Plastic Injection Mold Design & Manufacturing Solutions

    At LONGXIANG GROUP LIMITED, we specialize in producing high-quality plastic injection molds and custom plastic products for clients worldwide. Our comprehensive mold-making process covers every stage from initial concept and engineering design to precision machining, assembly, trial runs, and mass production. With state-of-the-art equipment and a team of seasoned engineers, we ensure that each mold meets the highest standards of accuracy, durability, and performance.

    Whether you need simple plastic parts or complex multi-cavity molds, our expertise guarantees that your project is executed with precision and delivered on time.

    Explore Our Plastic Mold Products 
    Plastic Injection Mold Factory Workshop - LONGXIANG GROUP LIMITED
    Plastic Injection Mold Design Engineering - 3D CAD Modeling
    Step 01

    Precision Mold Design & Engineering for Custom Plastic Parts

    Our engineering team uses advanced 3D CAD/CAM software to create detailed mold designs tailored to your specific plastic product requirements. Every aspect — from gate placement and cooling channel layout to ejection system design — is meticulously planned to ensure optimal part quality and cycle efficiency.

    • DFM (Design for Manufacturing) analysis
    • Mold flow simulation for defect prevention
    • Material selection guidance for plastic parts
    • Cavity layout optimization
    Step 02

    High-Precision CNC Machining & EDM for Plastic Injection Molds

    Our workshop is equipped with advanced CNC machining centers, EDM (Electrical Discharge Machining) machines, and wire-cut equipment to manufacture mold components with exceptional precision. With tolerances as tight as ±0.005mm, we ensure that every cavity, core, and insert is machined to the exact specifications required for flawless plastic part production.

    • High-speed CNC milling and turning
    • Mirror-finish EDM for complex cavities
    • Wire-cut EDM for precision inserts
    • Surface grinding and polishing
    Precision CNC Machining for Plastic Injection Molds - LONGXIANG
    Professional Injection Mold Assembly and Fitting - LONGXIANG
    Step 03

    Professional Mold Assembly, Fitting & Trial Run Services

    After machining, our skilled mold makers meticulously assemble and fit every component of the injection mold. The mold undergoes a comprehensive try-out process on our injection molding machines to verify part quality, cycle time, and dimensional accuracy. We fine-tune all parameters to ensure that the mold performs flawlessly in production.

    • Precision fitting and alignment
    • Mold try-out and sample testing
    • Cycle time optimization
    • Part dimensional verification
    Step 04

    Advanced Plastic Injection Molding for Custom Plastic Products

    Once the mold is validated, we move to full-scale plastic injection molding production. Our modern injection molding machines range from 80T to 1000T, capable of producing plastic parts of various sizes and complexities. We work with a wide range of thermoplastics including ABS, PP, PC, PA, POM, and more, ensuring the right material for your application.

    • 80T to 1000T injection molding machines
    • Multi-material and insert molding capabilities
    • Consistent quality with SPC control
    • Custom finishing and secondary operations
    Custom Plastic Injection Molded Products - LONGXIANG

    Rigorous Quality Control & Risk Management in Mold Manufacturing

    At LONGXIANG, we understand that mold-making risks can lead to costly delays and defects. That is why we implement a comprehensive risk management system at every stage of the process, ensuring your project stays on track and within budget.

    Design Review & DFM

    Thorough design review and DFM analysis identify potential issues before steel is cut, eliminating costly redesigns.

    Mold Flow Simulation

    Advanced simulation predicts filling, cooling, and warpage behavior, optimizing the mold design for first-shot success.

    In-Process Inspection

    Every machining step is verified with precision measuring instruments including CMM, microscopes, and gauges.

    Sample Testing & Approval

    First-article inspection reports with full dimensional data ensure the mold meets all specifications before shipment.

    Risk Mitigation Plan

    Proactive identification and mitigation of potential mold-making risks — from material selection to production timeline.

    Full Documentation

    Complete documentation package including 2D drawings, 3D models, inspection reports, and material certificates.

    Why LONGXIANG Is Your Trusted Partner for Plastic Injection Molds & Plastic Products

    Years of Mold Making Experience

    Our team brings decades of combined expertise in plastic injection mold design and manufacturing, serving clients across automotive, electronics, medical, and consumer goods industries.

    Global Project Delivery

    We have successfully delivered thousands of molds to clients worldwide, with a proven track record of on-time delivery and customer satisfaction.

    End-to-End Manufacturing

    From mold design and manufacturing to plastic injection production, we offer a complete one-stop solution, saving you time and coordination effort.

    Competitive Pricing

    We provide high-quality molds and plastic products at competitive prices, backed by efficient manufacturing processes and strategic material sourcing.

    Custom Plastic Products Across Industries — Versatile Injection Solutions

    Our injection molds and plastic products serve a diverse range of industries, delivering precision, reliability, and performance.

    Automotive

    Interior and exterior plastic components, under-hood parts, lighting housings

    Electronics

    Enclosures, connectors, switches, and precision electronic components

    Medical

    Medical device components, diagnostic equipment parts, laboratory consumables

    Consumer Goods

    Household products, kitchenware, storage solutions, and daily-use items

    Industrial

    Industrial equipment parts, mechanical components, packaging solutions

    Packaging

    Custom plastic packaging, containers, closures, and dispensing systems

    Get Your Custom Mold Project Started — Request a Free Manufacturing Consultation

    Ready to turn your idea into reality? Contact LONGXIANG GROUP LIMITED today for a free consultation. Our engineering team will review your requirements, provide expert recommendations, and deliver a competitive quote within 48 hours.