English 
Instant Quoting
Rapid Prototyping
High-Volume Production
Instant Quoting for Your Plastic Injection Mold Needs
JS offers quick and accurate quotes for your plastic injection mold projects. With a wide selection of mold materials, surface treatments, and high-precision mold-making capabilities, our instant quoting system ensures a tailored and competitive quote to meet your tooling needs.
Multiple Mold Materials: Choose from high-quality mold steels like P20, H13, and 718, or aluminum, to meet specific durability and molding requirements.
20+ Mold Surface Treatments: From texturing, polishing, to nitriding, we offer a variety of surface treatments with lead times averaging 3-7 days to enhance mold performance and lifespan.
High Precision Up to ±0.005mm: Achieve extremely tight tolerances in mold making to ensure accurate and repeatable part production.
Get an instant quote today.
Get instant pricing, project lead times, and DFM feedback
STEP | STP | SLDPRT | STL | DXF | IPT | X_T | X_B | 3DXML | CATPART | PRT | SAT | 3MF | JT files
File size: ≤15MB
ITAR Registered
ISO 9001:2015,ISO 13485:2016,AS9100D and lATF 16949:2016 Certified
Trusted by Engineers and Purchasing Leaders at the World’s Most Successful Companies
Plastic Injection Molds
Service
Product Showcase
Discover our Plastic Injection Molds, offering precise, high-quality components with fast production cycles. Ideal for industries like automotive, consumer products, and electronics.
Tolerances
JS offers plastic injection mold services with tolerances from ±0.01 mm to ±0.05 mm, ensuring high-quality, durable molds for a variety of applications. Our molds meet industry standards for both precision and long-lasting performance.
Feature
Description
Maximum Part Size
Milled parts up to 80” x 48” x 24” (2,032 x 1,219 x 610 mm). Lathe parts up to 62” (1,575 mm) length and 32” (813 mm) diameter.
Standard Lead Time
3 Business days
General Tolerances
Tolerances on metals will be held to +/- 0.005" (+/- 0.127 mm) in accordance with ISO 2768 unless otherwise specified. Plastics and composites will be +/- 0.010”.
Precision Tolerances
JS can manufacture and inspect to tight tolerances, including sub +/- 0.001" tolerances, per your drawing specifications and GD&T callouts.
Minimum Feature Size
0.020” (0.50 mm). This may vary depending on part geometry and chosen material.
Threads and Tapped Holes
JS can accommodate any standard thread size. We can also machine custom threads; these will require a manual quote review.
Material Selection
At JS, we provide a broad selection of high-performance plastics for injection molding. Carefully chosen for their strength, durability, and precision, our materials cater to specific needs like heat resistance, chemical stability, and flexibility—ensuring your products perform under diverse conditions.
Metals
- Titanium
- Steel
- Stainless Steel
- Zinc Alloy
- Chromium-Nickel Alloy
- Brass
- Copper
- Aluminum
- Bronze
- Cold Rolled Steel
- Nickel
- Silver-Tin Oxide
- Cast Iron
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 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
Surface Finishing
Improve the lifespan and performance of your plastic injection molds with our specialized surface finishing services. From polishing and texturing to coatings, we provide solutions that reduce wear, enhance mold precision, and ensure high-quality molded parts.
Natural Gloss
Mechanical/chemical polishing creates reflective mirror finish without coating. Ideal for decorative metal parts.
Matte
Sandblasting/etching creates uniform non-reflective texture with anti-fingerprint properties. Used on electronic enclosures.
Electropolish
Electrochemical process removes micro-protrusions for ultra-smooth, corrosion-resistant surfaces. Common in medical/food-grade stainless steel.
Electrophoresis
Electric field deposits paint particles uniformly on complex shapes. Offers strong adhesion and eco-friendly process.
Chromeplate
Electroplated chromium layer provides mirror-like finish (800-1000HV hardness). Used in automotive trim & bathroom fixtures.
Gold Plating
Depositing 0.1-5μm gold layer enhances aesthetics and oxidation resistance. Ideal for electronic contacts/jewelry.
Black Oxide
Chemical oxidation creates black Fe3O4 layer to reduce glare and improve rust resistance. Used on tools/machinery parts.
Black Glossy
High-gloss black coating via spray/plating combines aesthetics and weather resistance. Applied to consumer electronics.
Black Sand Texture Powder Coating
Textured powder coating mimics sand grains for scratch-resistant surfaces. Used in outdoor equipment.
Black Tabby Powder Coating
Matte black powder coating with smooth finish for corrosion protection. Used in appliances/industrial machinery.
Black Yarn Pattern Powder Coating
Interwoven fiber-like texture improves grip and wear resistance. Ideal for tool handles.
Anodize Type II Matt
Matte black anodized aluminum with high hardness and fingerprint resistance. Common in electronics.
Gold Chromate
Chromate coating dyed gold for corrosion resistance and aesthetics. Applied to zinc alloy parts.
Paint Coating Black
Thermally cured matte black paint with scratch resistance. Used in automotive interiors.
Brush True Color Chromate
Brushed texture with chromate coating maintains metallic look and rust prevention. For aluminum signs.
Brush Passivate
Brushed stainless steel passivated to remove iron ions and improve corrosion resistance. Used in cutlery/medical tools.
Brush Red Copper
Mechanically brushed red copper with linear grain for decorative applications like artworks.
Polish Red Copper
Hand/machine polished red copper with enhanced oxidation resistance. Used in sculptures/jewelry.
Polish Brass
High-gloss polished brass for vintage-style lighting fixtures and hardware.
Bead Blast 304 Steel
Abrasive blasting creates uniform satin finish on 304 stainless steel. Hides minor scratches in architectural panels.
Bead BlastRed Copper
Sandblasted red copper with matte texture to slow oxidation. Common in artistic metalworks.
Bead Blast Brass
Blasted brass surface reduces glare and improves wear resistance. Used in door handles.
Oil-Sprayed White Matte
White matte oil-based coating with soft touch and easy cleaning. Applied to appliance control panels.
Temper
Heating/cooling process modifies metal hardness (e.g. aluminum T6). Critical for load-bearing components.
Carbonization
High-temperature carbon infusion boosts surface hardness (up to 60HRC). Used in gears/cutting tools.
Harden Oxide
Hard anodizing creates thick oxide layer (50-100μm) with insulation/heat resistance. For aerospace components.
Harden Glossy Anodize Type II
Glossy black hard anodizing with ceramic-like finish. Provides extreme wear resistance for cameras/optics.
True Color Chromate
Chromate conversion coating retains base metal color, improves corrosion resistance and conductivity. Used on aluminum/zinc substrates.
Advantages & Features
At JS, we blend advanced technology with a deep understanding of the industry to provide high-quality plastic injection mold solutions tailored to your specific needs. Here’s why we stand out as your preferred partner:
High Precision & Durability
We utilize state-of-the-art machines and advanced tooling techniques to achieve exceptional precision, with tolerances as tight as ±0.02mm. Our molds are engineered for long-term durability, ensuring that your parts are consistently high-quality throughout extensive production runs.
Fast Lead Times
We prioritize efficiency without compromising quality. Our streamlined mold-making process allows us to provide molds within 1-2 weeks, and we offer expedited services to meet urgent deadlines, ensuring your production schedule remains on track.
Wide Material Selection
With access to over 100 materials, including thermoplastics like ABS, PP, Nylon, and engineering plastics, we can select the ideal material for your specific application. Whether you're working on consumer products or high-performance components, we have the material solutions to meet your needs.
Custom Mold Designs & Finishes
We specialize in custom mold designs to accommodate complex geometries and functional requirements. Our wide range of surface finishes, such as polishing, texturing, and coating, ensures that your molds not only perform well but also have the desired aesthetic qualities for your final product.
Scalable Production
Whether you need a single prototype or full-scale mass production, JS has the flexibility to handle projects of any size. We can efficiently manage orders from as few as one mold to as many as one million, ensuring scalability throughout the lifecycle of your product.
Strict Quality Control
As an ISO 9001 certified company, we implement rigorous quality control measures at every stage of the mold-making process. From material verification to dimensional inspections and comprehensive production trials, we ensure that your molds meet the highest industry standards for performance and longevity.
Case Studies
JS excels in producing high-precision plastic injection molds that cater to the needs of various industries. Below are some examples of how our molds have been successfully applied to meet industry-specific requirements:
Automotive Industry
Project Background:A leading automotive manufacturer needed high-precision injection molds for producing lightweight plastic parts used in electric vehicles.
Challenge: The molds had to ensure perfect dimensional accuracy, reduce material waste, and handle large production volumes while maintaining cost efficiency.
Solution: We designed and manufactured multi-cavity injection molds using advanced CAD/CAM technology, optimizing the mold design for fast cycle times and minimal defects.
Results: The molds enabled efficient production of plastic parts, contributing to lighter vehicles and improved fuel efficiency. The project was completed ahead of schedule and within budget.
Consumer Electronics Industry
Project Background:A leading consumer electronics brand required precise plastic components for a new line of smart devices.
Challenge: The injection molds needed to produce highly detailed parts with tight tolerances to fit seamlessly into the sleek design of the products.
Solution: We created high-precision injection molds using steel tooling and implemented strict quality controls to ensure flawless aesthetics and functionality of the final parts.
Results: The molds produced intricate, perfectly finished parts, contributing to the successful launch of the new product line, receiving positive market feedback for both form and function.
Medical Devices Industry - Biocompatible Molds for Surgical Instruments
Project Background:A medical device company required biocompatible plastic components for a new surgical instrument.
Challenge: The molds needed to produce parts with extremely tight tolerances and flawless finishes, meeting stringent regulatory requirements for medical applications.
Solution: We designed and built custom molds using medical-grade materials, ensuring compliance with all regulatory standards while maintaining exceptional precision.
Results: The surgical instruments were produced with biocompatible materials, met all regulatory standards, and performed flawlessly during clinical trials, leading to a successful product launch.
Packaging Industry
Project Background:A packaging company needed durable molds to produce lightweight, high-volume plastic containers for food and beverage products.
Challenge: The molds had to support high-speed production without compromising the structural integrity and safety of the food-grade plastic containers.
Solution: We engineered molds with superior cooling systems and optimized runner designs to ensure rapid production cycles while maintaining part consistency and quality.
Results: The plastic containers were produced at high volumes with minimal defects, supporting the client's large-scale distribution needs and improving overall production efficiency.
Home Appliances Industry
Project Background:A home appliances manufacturer required injection molds to produce durable, high-quality plastic parts for a new line of kitchen appliances.
Challenge: The molds needed to withstand long production runs and ensure the components maintained their durability and aesthetic appeal over time.
Solution: We utilized advanced tooling materials and mold-flow analysis to design injection molds capable of high-volume production with superior durability and finish quality.
Results: The kitchen appliances were produced with durable plastic components that retained their high-quality appearance, contributing to strong sales and customer satisfaction.
Quality Control
At JS, we focus on delivering high-quality plastic injection molds that meet the highest standards for precision, durability, and reliability. With our robust quality control process, each mold we produce is carefully checked to ensure consistent results and superior performance.
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
We rely on state-of-the-art precision tools such as CMMs, optical comparators, and hardness testers to ensure that our molds adhere to strict dimensional and material specifications. These tools maintain tight tolerances and ensure optimal performance during mass production.
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.
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.
We know that making informed decisions about injection molding services can be complex. Here are some of the most common inquiries from our clients to help you get a clearer picture of our process and capabilities. If you have more questions or need tailored assistance, feel free to reach out to our team anytime.
Customer Testimonials
Our clients trust JS for precision and reliability when it comes to plastic injection molds. Here’s what some of them have to say about their experience working with us:
The plastic injection molds we received from JS were flawless. Their molds enabled us to produce automotive parts with tight tolerances and consistent quality. The entire process was smooth, from design to delivery.
We were highly impressed with JS's precision and expertise in plastic injection molds. They helped us optimize our mold designs, ensuring cost-effective production without compromising quality. Their service is reliable and timely.
JS’s plastic injection molds were key to our project’s success. The molds produced high-quality components with remarkable consistency, allowing us to meet production demands with confidence. Their attention to detail and service exceeded our expectations.
Working with JS for our plastic injection molds was a seamless process. They were proactive in ensuring that our mold designs met all specifications and delivered molds of excellent quality ahead of schedule. This was crucial for our product launch.
The plastic injection molds provided by JS allowed us to achieve high precision and durability in our industrial parts production. Their ability to meet tight tolerances and provide rapid mold adjustments made them an essential partner for us.
Latest News
Stay informed with the latest updates and announcements from JS. Learn about our most recent projects.
