Our Service

Our manufacturing capabilities low-volume customization&100+ Metals and insulating materials options available

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CNC Machining

CNC Machining

Need precision parts? We provide online CNc machining services from China, combining cost efficiency with quick turnaround. As a CNC precision machining manufacturer for UsA and global markets, we deliver high-quality parts that meet strict industry standards. Simplyupload your CAD files to get an instant quote today!

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CNC Milling

CNC Milling

Rinjie is equipped with 3-axis, 4-axis, and 5-axis millingoffer professional cnc milling service from china with instant online quotations (within 8 hours), superior-qualitymanufacturing, and fast, reliable delivery.

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CNC Turning

CNC Turning

Rinjie is equipped with CNC lathes, turning centers, and conventional lathes to handle complex, custom-turned parts. We provide instant cnc turning online quote services, advanced processing for intricate shapes, and free inspection reports.

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Rapid Prototyping

Rapid Prototyping

We provide rapid prototypinginternational servicessolutions with OEM support for various industries.We help global customers speed up product development

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Laser Cutting

Laser Cutting

Fast, precise laser cutting for aluminum, acrylic, ABS plastic, foam and more. Get instant quoting and a free DFM review within 8 hours.

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Sheet Metal Fabrication

Sheet Metal Fabrication

We ofer professional online sheet metal fabrication services in the UsA, including laser cutting, bending & forming, and welding,etc. Upload your design to get a fast,custom sheet metal fabrication service quotes today!

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Plastic Injection Molding

Plastic Injection Molding

As a premium precision plastic iniection molding manufacturer in USA operating from china, we deliver end-to-engservices--from concept to finished mold,ensuring your products reach the market faster with uncompromising quality.

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Surface Finishing

Surface Finishing

Work with trusted industrial surface finishing service provider with best surface finishing process to achieve flawless quality for your parts get your quote today!

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PROTOTYPES AND PARTSMADE EASY

Get 3-day standard lead times on simple parts between 10 mm x 10 mm and 200 mm x 200 mm. Upload your part to see if it’s eligible.

  • Upload CAD file

    Upload files-Fill in your information and upload your CAD file to obtain a quotation.

  • Receive Quotation

    Engineers evaluate the quotations and delivery schedules based on your drawings.

  • Production

    We will prepare the raw materials according to your order and start the production process.

  • Quality Inspection

    Quality inspection and packaging - The quality inspection department will inspect the condition of your finished products and carefully pack them.

  • Delivery

    Delivery on time.

Application

Renjie Precision supports diverse industries with specialized CNC machining capabilities. Our ISO-certified manufacturing delivers precision components across medical, automotive, aerospace, and industrial sectors with consistent quality and compliance.

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Automotive

Automotive

Custom automotive CNC parts with tight tolerances and complex geometries. Extensive material selection, complete IP protection, and detailed quality documentation.

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Medical

Medical

Accelerate medical device development with precision CNC machining. From prototypes to production, we deliver ISO 13485-certified parts with fast turnarounds and competitive costs.

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3C Electronics

3C Electronics

Electronic products have higher requirements on appearance and structural design than other industries, and fine surface treatment can make electronic products more attractive

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Mechanical Equipment

Mechanical Equipment

Source industrial machinery components with rapid quoting and expert DFM analysis. Diverse manufacturing technologies, material selections, and flexible local or global production to meet deadlines.

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Aerospace

Aerospace

Aerospace Parts Prototyping: Trust our experienced engineers for aerospace rapid prototyping services. We utilize advanced manufacturing technologies to rapidly prototype aircraft and spacecraft components to your custom specifications.

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ABOUT US

Established in 2011, Renjie Precision has grown into a comprehensive manufacturer integrating design, production, and assembly. Our core team averages over 15 years of machining expertise. ISO 9001 and ISO 13485 certified, we serve the medical, aerospace, automotive, and semiconductor industries with precision components that meet stringent quality and regulatory standards. We are equipped with advanced machinery including 5-axis machining centers, turn-mill machines, CNC lathes, and precision testing instruments like CMM coordinate detectors to ensure dimensional accuracy and quality control.

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Material

Discover 100+ manufacturing materials for prototyping and production. From plastics to metals and more—find the right materials for CNC machining, injection molding, 3D printing, and sheet metal fabrication.

Aluminum

Aluminum

Aluminum alloys offer excellent strength-to-weight ratio, high thermal and electrical conductivity, low density, and natural corrosion resistance. Easily machined and anodized.

Brass

Brass

Brass is a metal alloy featuring excellent machinability, superior electrical conductivity, and distinctive golden appearance. Ideal for low-friction applications requiring durability.

Stainless steel

Stainless steel

Stainless steel combines high tensile strength with exceptional corrosion and temperature resistance. Easily welded, machined, and polished with excellent ductility and wear resistance.

Titanium

Titanium

Titanium offers exceptional strength-to-weight ratio, low thermal expansion, and superior corrosion resistance. Biocompatible and sterilizable for aerospace, automotive, and medical applications.

ABS

ABS

Common thermoplastic with exceptional versatility. ABS offers excellent all-around mechanical properties, outstanding impact resistance, good heat tolerance, and easy machining capabilities.

Steel Alloy

Steel Alloy

Alloy steels combine carbon with additional alloying elements for superior hardness, toughness, and fatigue resistance. Exceptional strength and wear resistance for demanding applications.

Sheet Metal Fabrication

Sheet Metal Fabrication

Sheet metal fabrication transforms flat metal sheets into precise components through cutting, bending, and forming. Cost-effective for prototypes and production with excellent design flexibility.

Carbon fiber

Carbon fiber

Carbon fiber offers exceptional strength-to-weight ratio with superior stiffness and fatigue resistance. Lightweight composite material ideal for aerospace, automotive, and high-performance applications.

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Customer Reviews

See what our satisfied customers have said about how we fulfilled their requirements.

Anna
Australia

“Renjie handled a particularly challenging project for us—a medical device component with ±0.005mm tolerances that required both precision and biocompatible certification. Not only did they nail the specifications, but their QC team provided comprehensive inspection reports that passed our regulatory review finally. A trustworthy team!”

Smith
Germany

“2-We've been working with Renjie Precision for over two years now, and they consistently exceed expectations. They do have a price advantage in manufacturing complex CNC components, which is why I chose to collaborate with them. The quality is also good, so I highly recommend it.”

David
Canada

“After cooperating with several CNC stores, Renjie Precision has some advantages of its own. Their quotation process is very fast, usually completing the quotation on the same day. The quality control is excellent - they have a dedicated QC team that provides comprehensive inspection reports for free. For our European goods, they use wooden boxes for packaging, which is much better than paper boxes. I will continue to cooperate with them.”

Lilly
America

“ very communicative team! When encountering problems, Ren Jie would promptly reply to me and work with me to discuss and propose solutions. I believe that being able to solve problems is of great significance in business cooperation, and they did it”

DELIVERY TIMEEXPLANATION
  • Rapid Prototyping
    Rapid Prototyping

    We provide rapid prototyping within 3–5 days to help you validate designs quickly.

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  • Small Batch Production
    Small Batch Production

    Small batch orders can be completed in just 2–3 weeks with guaranteed quality and precision.

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  • Mass Customization
    Mass Customization

    The production delivery cycle for large quantities needs to be determined based on specific circumstances.Based on quantity and materials, mold production can be carried out to reduce costs.

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