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    Instant Quoting

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    Rapid Prototyping

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    High-Volume Production

Instant Quoting for Your insert-molding Needs

JS provides fast and accurate quotes for your insert-molding projects. With a variety of material options, surface treatments, and precision molding capabilities, our instant quoting system is designed to provide you with a tailored and competitive offer to meet your production requirements.

  • Access a wide range of thermoplastics and elastomers, including ABS, PC, PP, and TPE, suitable for various product applications and industry requirements.Access a wide range of thermoplastics and elastomers, including ABS, PC, PP, and TPE, suitable for various product applications and industry requirements.
  • From texturing, polishing, to painting, we offer a range of finishing options with an average lead time of 2-5 days, ensuring the right look and feel for your parts.From texturing, polishing, to painting, we offer a range of finishing options with an average lead time of 2-5 days, ensuring the right look and feel for your parts.
  • Achieve tight tolerances and consistent part quality, perfect for intricate designs and functional components.Achieve tight tolerances and consistent part quality, perfect for intricate designs and functional components.

Get an instant quote today.

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  • 证书.pngISO 9001:2015,ISO 13485:2016,AS9100D and lATF 16949:2016 Certified

Trusted by Engineers and Purchasing Leaders at the World’s Most Successful Companies

Insert-Molding

JS offers innovative insert molding services, ideal for integrating metal or other components with plastic to enhance product strength and functionality. Our ISO 9001:2015 certified processes, coupled with advanced equipment, ensure precision and durability in every part. Whether you're working on complex designs or custom applications, our expert engineers collaborate with you to select the best materials and achieve the highest quality results. From rapid prototypes to large-scale production, we provide fast, efficient, and cost-effective solutions tailored to your specific project needs.
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Service

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Product Showcase

JS provides insert molding solutions that seamlessly combine metal or other materials with plastic to create robust, high-performance parts. This process ensures strong, precise components that are ideal for applications requiring integrated assemblies and enhanced functionality.

Tolerances

JS specializes in insert molding, combining metal and plastic components with tolerances from ±0.01 mm to ±0.05 mm. This ensures durable, high-strength bonds with exceptional precision.

Feature

Description

  • Maximum Part Size

    1200×1000×500 mm

  • Minimum Part Size

    5×5×5 mm

  • Part to Part Repeatability

    +/- 0.1 mm

  • Mold Cavities

    Single-cavity molds, multi-cavity molds, family molds

  • Available Mold Types

    Steel and aluminum molds. Production levels below 1000, 5000, 30000, and over 100000 uses

  • Mold Cavity Tolerances

    +/- 0.05 mm

  • Secondary Operations

    Mold texturing, pad printing, laser engraving, threaded inserts, and basic assembly

  • Undercuts

    Y-type, L-type undercuts

  • Wall Thickness

    0.5 mm to 5 mm

  • Draft

    0.5° to 2°

  • Ribs/Gussets

    0.5 mm to 3 mm thick

  • Bosses

    Diameter 3 mm to 10 mm

  • Production Options

    Domestic and international

  • Lead Time

    Starts at 5 business days, including fast quote responses with design-for-manufacturing (DFM) feedback

  • Materials

    Most plastics, including custom sourcing and matching; see materials list below

  • Machines Available

    Single, multi-cavity, and family molds; 50 to 1,100+ press tonnage; side actions including hand-loaded cores.

  • Inspection and Certification Options

    Includes FAI and PPAP. ISO 9001, AS9100, ISO 13485, UL, ITAR, and ISO 7 and 8 Medical Clean Room molding.

  • Tool Ownership

    Customer-owned with mold maintenance

  • Standard Lead Time

    3 Business days

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Get a free quote today and discover how our insert molding services can support your project.

Material Selection

JS provides insert molding to produce strong, functional parts using ABS, PLA, and PETG. Ideal for industries like consumer products, automotive, and education, this method is perfect for low to medium volume production, offering precision and durability in every design.

Metals

  • Titanium
  • Steel
  • Stainless Steel
  • Zinc Alloy
  • Chromium-Nickel Alloy
  • Brass
  • Copper
  • Aluminum
  • Bronze
  • Cold Rolled Steel
  • Nickel
  • Silver-Tin Oxide
  • Cast Iron
Titanium

Titanium is known for high strength, low weight, and corrosion resistance. We process grades like Ti-6Al-4V, Ti-5Al-2.5Sn, Ti-6Al-4V ELI, and Ti-Grade 2, which are widely used in aerospace, medical implants, and sports equipment.

Plastics

  • Polycarbonate (PC)
  • Polyoxymethylene (POM)
  • Polyphthalamide (PPA)
  • Polyphenylene Sulfide (PPS)
  • Teflon (PTFE)
  • Polyvinyl Chloride (PVC)
  • Ultra High Molecular Weight Polyethylene (UPE)
  • Polyether Ether Ketone (PEEK)
  • Nylon (PA)
  • Glass-Filled Nylon
Polycarbonate (PC)

Polycarbonate is a transparent, highly durable plastic known for its superior impact resistance. We offer different grades suitable for eyewear lenses, medical devices, and protective equipment.

We offer customization based on your specific material requirements, if you need a material not listed here, our team can source and process ito meet your exact needs

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The materials listed are just a few we offer. If you have specific material needs, feel free to reach out, and we'll guide you in selecting the best fit for your project.

Surface Finishing

Enhance your insert molded parts with our surface finishing services. By polishing, coating, and texturing, we improve both the aesthetics and functionality of your components, ensuring they meet the highest quality standards.

Natural Gloss

NaturalGloss

Mechanical/chemical polishing creates reflective mirror finish without coating. Ideal for decorative metal parts.

Matte

Matte

Sandblasting/etching creates uniform non-reflective texture with anti-fingerprint properties. Used on electronic enclosures.

Electropolish

Electropolish

Electrochemical process removes micro-protrusions for ultra-smooth, corrosion-resistant surfaces. Common in medical/food-grade stainless steel.

Electrophoresis

Electrophoresis

Electric field deposits paint particles uniformly on complex shapes. Offers strong adhesion and eco-friendly process.

Chromeplate

Chromeplate

Electroplated chromium layer provides mirror-like finish (800-1000HV hardness). Used in automotive trim & bathroom fixtures.

Gold Plating

GoldPlating

Depositing 0.1-5μm gold layer enhances aesthetics and oxidation resistance. Ideal for electronic contacts/jewelry.

Black Oxide

BlackOxide

Chemical oxidation creates black Fe3O4 layer to reduce glare and improve rust resistance. Used on tools/machinery parts.

Black Glossy

BlackGlossy

High-gloss black coating via spray/plating combines aesthetics and weather resistance. Applied to consumer electronics.

Black Sand Texture Powder Coating

BlackSandTexturePowderCoating

Textured powder coating mimics sand grains for scratch-resistant surfaces. Used in outdoor equipment.

Black Tabby Powder Coating

BlackTabbyPowderCoating

Matte black powder coating with smooth finish for corrosion protection. Used in appliances/industrial machinery.

Black Yarn Pattern Powder Coating

BlackYarnPatternPowderCoating

Interwoven fiber-like texture improves grip and wear resistance. Ideal for tool handles.

Anodize Type II Matt

AnodizeTypeIIMatt

Matte black anodized aluminum with high hardness and fingerprint resistance. Common in electronics.

Gold Chromate

GoldChromate

Chromate coating dyed gold for corrosion resistance and aesthetics. Applied to zinc alloy parts.

Paint Coating Black

PaintCoatingBlack

Thermally cured matte black paint with scratch resistance. Used in automotive interiors.

Brush True Color Chromate

BrushTrueColorChromate

Brushed texture with chromate coating maintains metallic look and rust prevention. For aluminum signs.

Brush Passivate

BrushPassivate

Brushed stainless steel passivated to remove iron ions and improve corrosion resistance. Used in cutlery/medical tools.

Brush Red Copper

BrushRedCopper

Mechanically brushed red copper with linear grain for decorative applications like artworks.

Polish Red Copper

PolishRedCopper

Hand/machine polished red copper with enhanced oxidation resistance. Used in sculptures/jewelry.

Polish Brass

PolishBrass

High-gloss polished brass for vintage-style lighting fixtures and hardware.

Bead Blast 304 Steel

BeadBlast304Steel

Abrasive blasting creates uniform satin finish on 304 stainless steel. Hides minor scratches in architectural panels.

Bead BlastRed Copper

BeadBlastRedCopper

Sandblasted red copper with matte texture to slow oxidation. Common in artistic metalworks.

Bead Blast Brass

BeadBlastBrass

Blasted brass surface reduces glare and improves wear resistance. Used in door handles.

Oil-Sprayed White Matte

Oil-SprayedWhiteMatte

White matte oil-based coating with soft touch and easy cleaning. Applied to appliance control panels.

Temper

Temper

Heating/cooling process modifies metal hardness (e.g. aluminum T6). Critical for load-bearing components.

Carbonization

Carbonization

High-temperature carbon infusion boosts surface hardness (up to 60HRC). Used in gears/cutting tools.

Harden Oxide

HardenOxide

Hard anodizing creates thick oxide layer (50-100μm) with insulation/heat resistance. For aerospace components.

Harden Glossy Anodize Type II

HardenGlossyAnodizeTypeII

Glossy black hard anodizing with ceramic-like finish. Provides extreme wear resistance for cameras/optics.

True Color Chromate

TrueColorChromate

Chromate conversion coating retains base metal color, improves corrosion resistance and conductivity. Used on aluminum/zinc substrates.

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These are just a few of the surface finishing options we offer. lf you have a specific requirement, please reach out to us to discuss the best solution for your project.

Advantages & Features

JS offers a unique blend of technology and precision, making us the perfect partner for complex insert molding projects. Whether you're working with intricate designs or require high-volume production, we have the expertise to meet your specific demands. Here’s what makes us the preferred choice for your molding needs:

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Precision-Driven Integration of Materials

Precision-Driven Integration of Materials

We specialize in the integration of metal inserts into plastic components through our advanced insert molding technology. This allows for stronger, more durable parts, combining the benefits of both materials in a single, precise operation. Ideal for demanding industries such as automotive, medical, and electronics, our solution ensures reliability and superior performance.

Built to Last – Stronger and More Durable Products

Built to Last – Stronger and More Durable Products

Insert molding enhances the strength and longevity of your components by integrating metal parts with molded plastics. This method provides robust, long-lasting products that are perfect for applications where durability and performance are critical—whether in machinery, vehicles, or medical devices.

Fast and Efficient Turnaround for Your Tight Deadlines

Fast and Efficient Turnaround for Your Tight Deadlines

We know the importance of meeting project deadlines. With our streamlined production process, we can deliver your products quickly while maintaining the highest standards of quality. Whether you need small quantities or larger volumes, we ensure your production schedule is met on time, every time.

Wide Range of Materials to Fit Your Specific Needs

Wide Range of Materials to Fit Your Specific Needs

Our insert molding services offer flexibility with a wide variety of materials, including metals like brass, aluminum, and stainless steel, as well as ceramics and electronics. This adaptability means we can meet the unique requirements of your project, regardless of the industry or application.

Scalable Solutions for Both Small and Large Runs

Scalable Solutions for Both Small and Large Runs

From prototype testing to mass production, JS offers scalable insert molding solutions. Whether you need a few parts for testing or thousands for a large-scale production run, we efficiently manage both small and large orders, giving you the flexibility to scale as your project evolves.

Uncompromised Quality at Every Step

Uncompromised Quality at Every Step

Our dedication to quality is evident in every part we produce. With strict quality control processes, precision measurements, and in-process inspections, we ensure that every part meets the highest standards. Our ISO 9001 certification further demonstrates our commitment to delivering flawless parts for your needs.

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Partner with JS for your insert molding projects and benefit from our precision, efficiency, and commitment to quality. Contact us now to receive an instant quote and take the first step towards bringing your vision to life.

Case Studies

JS’s insert molding technology is designed to deliver high-performance, durable components that combine metal inserts with plastics. Our solutions are built to withstand challenging conditions and provide long-lasting results. Discover how we support a wide range of industries with tailored insert molding solutions that maximize efficiency and reliability.

Automotive Industry - Optimizing Performance and Longevity for Electric Vehicle Charging Systems

Automotive Industry - Optimizing Performance and Longevity for Electric Vehicle Charging Systems

Medical Devices Industry - Precision-Engineered Components for Safe Surgical Applications

Medical Devices Industry - Precision-Engineered Components for Safe Surgical Applications

Electronics Industry - Enhanced Performance for High-Precision Consumer Electronics

Electronics Industry - Enhanced Performance for High-Precision Consumer Electronics

Home Appliances Industry - Durable, Heat-Resistant Parts for Kitchen Appliances

Home Appliances Industry - Durable, Heat-Resistant Parts for Kitchen Appliances

Industrial Equipment Industry - Heavy-Duty Components for Harsh Industrial Environments

Industrial Equipment Industry - Heavy-Duty Components for Harsh Industrial Environments

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These case studies showcase how JS’s insert molding technology meets the specific demands of each industry, delivering high-quality, durable solutions. Get in touch today to learn how we can support your unique project requirements.

Quality Control

At JS, we specialize in insert molding to deliver products that excel in precision, strength, and performance. We combine innovative technology with meticulous attention to detail to create components that perfectly integrate into your final product, ensuring long-lasting durability and functionality.

In-Process Inspections

Before any part leaves our facility, it undergoes a thorough final inspection. We use advanced measurement tools to verify that every component meets required specifications and precision standards, ensuring the highest level of quality before delivery.

Final Inspections

Before any part leaves our facility, it undergoes a thorough final inspection to verify its quality and precision. We use advanced measurement tools and techniques to ensure that each part meets the required specifications and standards.

Precision Measurement Tools

To achieve the highest standards in insert molding, we utilize advanced measurement tools like Coordinate Measuring Machines (CMM) and specialized gauges. This guarantees that your parts are made to the tightest tolerances, ensuring consistent quality and performance.

Certified Quality Standards (ISO 9001, ISO 14001, IATF 16949, AS9100D)

Our commitment to quality is backed by ISO 9001 certification, which ensures our quality management system is consistently effective and continually improving. We also adhere to ISO 14001, IATF 16949, and AS9100D standards, ensuring we meet the needs of various industries while maintaining environmental sustainability and operational excellence.

Continuous Improvement

We believe in continuous improvement and regularly review our processes and practices to identify areas for enhancement. By investing in the latest technologies and training for our staff, we strive to maintain our reputation for quality and innovation.

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Choose JS for your insert molding needs and experience the perfect balance of quality, precision, and customer satisfaction. Contact us today to discuss your project and learn how we can deliver tailored solutions that exceed your expectations.

Contact Us for More Information

Should you have any additional questions or require more details, feel free to reach out to us. Our dedicated team is ready to assist you with all your precision manufacturing requirements.

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We know that choosing the right manufacturing process is crucial for your project's success. To help you make an informed decision, we've answered some of the most common questions about our insert molding services. Should you need additional information, our team is always here to support you.

Insert molding combines metal or plastic components with injected plastic to create robust, multifunctional parts in a single step. This process is perfect for parts that require embedded features like threads or electrical contacts.

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Still Have Questions? If you have any other questions or need further information, please do not hesitate to contact us. Our team is here to help you with all your

Customer Testimonials

At JS, we take pride in delivering precise and reliable insert molding solutions. Here’s what some of our clients have to say about their experience working with us:

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JS’s insert molding services were essential to the success of our automotive components. Their team ensured that the metal inserts were seamlessly integrated into the plastic parts, providing superior strength and durability. We were highly satisfied with the results.

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John Adams
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AutoParts Engineering
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The precision of JS’s insert molding was exceptional. They helped us design and produce complex medical parts with embedded metal components, ensuring tight tolerances and excellent performance. Their expertise made a significant difference to our project.

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Jane Williams
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MedEquip Solutions
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JS’s insert molding process produced consistent, high-quality parts for our consumer electronics products. Their ability to integrate metal inserts into the plastic housing with precision was impressive, and the parts performed flawlessly during assembly.

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Michael Lee
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TechInnov Plastics
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JS provided us with exceptional insert molding services, integrating metal parts into plastic components with superior precision. Their attention to detail and commitment to quality helped us maintain the high standards required for our industrial products.

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Emily Chen
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Precision Tech Components
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The insert molding services from JS allowed us to achieve high-strength components with complex designs. Their ability to meet tight deadlines while maintaining precision made them a reliable partner for our industrial equipment projects.

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David Wong
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Industrial Solutions Ltd.
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These testimonials reflect our commitment to excellence and customer satisfaction. Join our list of satisfied customers by choosing JS Manufacturing for your insert molding needs. Contact us today to discuss your project and get an instant quote.

Latest News

Stay informed with the latest updates and announcements from JS. Learn about our most recent projects.

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