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2K-Two-Shot-Injection-Mold-3.jpg
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China 2K Two-Shot Injection Molding Suppliers | Dual-Color Automotive & Power Tools Factory

Two-shot injection molding, also known as 2K molding, is an innovative manufacturing process that combines two distinct materials in a single operation. This technique produces components that offer both structural integrity and appealing functional or aesthetic surfaces. It is especially prevalent in industries such as automotive interiors and power tools, where items require a combination of a rigid foundation and soft-touch or dual-color finishes, As a leading China supplier in the field, Jinlong Electric specializes in creating high-quality 2K molds specifically tailored for automotive and power tool applications. Our extensive experience highlights that two-shot molds are ideal for producing dual-color electric tool housings and automotive parts that necessitate soft-touch surfaces alongside sturdy structural bases, This case exemplifies Jinlong's expertise as a factory dedicated to the design and manufacturing of 2K two-shot injection molds. With state-of-the-art dual-shot injection equipment and a highly skilled engineering team focused on process development, we are committed to delivering exceptional quality and performance in every product we create
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    Product Details

    Engineering Specifications

    Parameter Specification
    Product Application Automotive components, power tool housings
    Mold Type 2K / Two-Shot injection mold
    Material Combination ABS + TPE, PC + ABS, PP + TPU (custom per requirement)
    Mold Size Up to 3,200 × 1,800 × 1,600mm
    Mold Steel S136 (cavities), 718H (cores)
    Cavity Layout Single-cavity, multi-cavity
    Gate System Sequential valve gate system
    Surface Finish Class-A + soft-touch (per material combination)
    Expected Mold Life 500,000+ shots per material layer
    Tolerance ±0.01mm
    Injection Equipment Dedicated 2K dual-shot machine, 250T–360T

    Technical Process

    Step 1
    Inquiry & Requirements Analysis
    Customer submits product drawings, material specifications, and production targets. Jinlong evaluates 2K design feasibility and provides a quotation within 3 business days.
    Step 2
    2K Design Review & DFM
    Jinlong reviews material pair compatibility, interface geometry, sequential injection sequence, and temperature management. DFM feedback provided within 48 hours.
    Step 3
    Mold Design — 2K Specific
    Jinlong develops 2K mold with sequential valve gate system, isolated temperature control zones, and precision inserts for each material cavity. Designs submitted for approval.
    Step 4
    Precision Manufacturing
    Mold machined in Jinlong's tool room with specialized attention to valve gate passages, interface surfaces, and finishes on both material cavities.
    Step 5
    2K Trial & Process Development
    Trials on Jinlong's dedicated 2K dual-shot machine. Process engineers develop optimal parameters — valve gate timing, injection profiles, temperatures, cycle time. Full process documentation provided.
    Step 6
    Sample Approval & Delivery
    Samples measured on CMM with complete FAI documentation. Upon approval, mold shipped with full documentation.
    Step 7
    Ongoing Support
    Valve gate adjustments, spare parts, and engineering modifications available.

    Customization Capabilities

    Category Options
    Material Combinations ABS+TPE, PC+ABS, PP+TPU, PA66+TPE, PC+PMMA
    First Shot Materials ABS, PC, PP, PA66, PC/ABS
    Second Shot Materials TPE, TPU, silicone, soft-touch elastomers
    Cavity Layout Single-cavity, multi-cavity, family molds
    Overmold Design Full overmold, partial overmold, sealing lip
    Gate System Sequential valve gate, hot runner individual nozzle control

    Why Jinlong for 2K Two-Shot Molds?

    ✓ Dedicated 2K dual-shot injection machines (250T–360T) for in-house trials
    ✓ Sequential valve gate systems designed and manufactured in-house
    ✓ Moldflow simulation for both first-shot and second-shot processes
    ✓ Complete 2K process development and documentation
    ✓ 40+ years of precision mold manufacturing experience

    Quality Assurance

    ✓ ISO 9001:2016 and IATF 16949:2016 certified
    ✓ Full CMM inspection for both material layers
    ✓ Interface geometry and adhesion validation
    ✓ Complete documentation package with every delivery
    Back to Automotive Molds

    Frequently Asked Questions

    What is the expected mold life for Jinlong's 2K molds?
    The expected mold life is 500,000+ shots per material layer, backed by high-quality S136 cavity steel and 718H core steel.
    What material combinations can be used in your 2K injection process?
    We support a wide range of material combinations including ABS+TPE, PC+ABS, PP+TPU, PA66+TPE, and PC+PMMA, customizable to your specific application requirements.
    What is the typical tolerance accuracy for your 2K molds?
    We achieve high-precision tolerances of ±0.01mm, ensuring exact fits and high-quality finishes for automotive and power tool components.
    How long does it take to receive DFM feedback?
    Jinlong provides comprehensive Design for Manufacturability (DFM) feedback within 48 hours of initial review, analyzing material pair compatibility, interface geometry, and sequential injection sequence.
    What quality certifications does Jinlong hold?
    Jinlong is ISO 9001:2016 and IATF 16949:2016 certified, ensuring all manufacturing steps adhere to strict automotive and industrial quality standards.
    Do you have dedicated machinery for mold trials?
    Yes, we have dedicated 2K dual-shot injection machines ranging from 250T to 360T specifically for in-house trials, parameter optimization, and process development.