Parts Manufacturer Since 2002

Rapid Prototyping and Parts Manufacturing Service

  • No MOQ, as fast as 3 days lead time.
  • Factory Direct Cheap Price
  • ISO 9001:2015 Certified
  • 50+ Materials Options
  • Instant Free Quote in 24H
CNC Machining Service

CNC Machining

High-precision prototypes and Low-volume parts are quickly manufactured, suitable for 1-1000 parts. Tolerance up to 0.005mm. No MOQ. Fastest 1-5 days Lead time.

Sheet Metal fabrication Service

Sheet Metal

Rapidly process metal plates into sheet metal structures and products through cutting, bending, welding, stamping, etc. Suitable for 1-10,000 pieces sheet metal parts.

3D Printing Service

3D Printing

The best choice for rapid manufacturing of complex structures. SLS, SLA, MJF and FDM services are suitable for 1-500 pieces of parts or samples.

Mold and die Service

Other Solutions

Provide vacuum casting, plastic injection molding, die casting, wire cutting, EDM, surface treatment, assembly and other solutions

Manufacturer Since 2002

–We are a 20+ Years Professional Custom Metal & Plastic Parts Manufacturer in China.

Rapid Protos (RPS) is a one-stop prototype and parts manufacturing expert, providing a full range of services including CNC machining, 3D printing, sheet metal fabrication, vacuum casting and surface treatment.
RPS has more than 100 senior engineers and more than 80 advanced machines capable of processing more than 50 metals and plastics. We work with more than 50 ISO9001 certified factories, and conduct strict quality control from raw materials to delivery to ensure on-time delivery of products and quick response to customized needs. RPS is your trusted partner in industrial manufacturing!

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Our Latest Projects

Focusing on precision manufacturing, RPS has cooperated with customers in different fields around the world for many years. Whether it is precision aerospace parts or innovative consumer electronics components, we can deliver them accurately. With professional technology and efficient services, we help customers’ projects to advance steadily and achieve success.

Why Rapid Protos ?

A Manufacturing Partner You Can Trust

Rapid Protos for Awesome Project Creations

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Our Capability

We have comprehensive capabilities from rapid prototyping to low-volume manufacturing. Using advanced manufacturing technologies and high-precision equipment from Japan, the US, Germany, etc., we offer fast manufacturing of high-quality precision parts. We meet prototyping needs (1-50 pcs, 3-7 day lead time) and on-demand low-volume production (50-10,000 pcs, 7-30 day lead time, no MOQ), support various materials and customization, help customers speed up product development, cut costs, and provide global logistics services.

Surface Finishing Options

After the parts are processed, the surface treatment is carried out to form a unique surface layer to meet the hardness, corrosion resistance, and appearance requirements of the product. The choice of surface treatment depends on the material properties and application of the part. RPS offers the following surface treatment options for CNC-machined metal parts:

anodizing parts 600x400

Anodizing can improve the corrosion resistance of aluminum alloys, increase the surface hardness and wear resistance, and have a good appearance after the coloring surface treatment.

powder coating parts 600x400

Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike traditional liquid paint, which is applied with an evaporating solvent, powder coating is typically applied electrostatically and cured with heat or ultraviolet light.

Black oxide parts 2

Black oxide, or blackening, is a conversion coating for ferrous metals, stainless steel, copper and copper-based alloys, zinc, powdered metals, and silver solder. It produces an oxide film on the metal surface to add modest corrosion resistance, improve appearance, and reduce light reflection. Black oxide must be treated with oil or wax to provide maximum corrosion resistance.

bead blasting parts 600x400

Bead blasting produces a smooth, matte-textured surface, and sharp edges can be broken and deburred for safe handling. Bead blasting can also improve the mechanical strength, wear resistance and corrosion resistance of parts.

electroplating parts 600x400

Electroplating is the process of coating an object in a layer of metal using electrodeposition. Electroplating is widely used to improve the surface qualities of metals, such as resistance to abrasion and corrosion, lubricity, reflectivity, and electrical conductivity. Electroplating can also make metals look better.

Polished parts 2

Polishing is a technique for creating a smooth and shiny surface by rubbing it or applying a chemical treatment. The process creates a surface with significant specular reflection, but it can also reduce diffuse reflection in some materials.

brushing parts 600x400

Brushing is a surface treatment process in which an abrasive belt is used to draw marks and lines on the surface of products to achieve a decorative texture.

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Accurate Quotation, No Hidden fees

Instant, Online Quotes

How We Calculate Prices ?

After reviewing your CAD design drawings, we will select the most appropriate manufacturing process based on product structure, materials, order quantity and precision requirements, and simulate the manufacturing process, calculate material costs, processing time of each process, etc., and finally generate an accurate product manufacturing cost quotation.
No hidden fees. Our quotations are actual prices, including shipping and tariffs.

  • CAD Design Files

  • Material

  • Order Quantity

  • Surface Treatment

The Rapid Protos Quality Standard

Guaranteed quality, every time.

Threads and Tolerances

Our factories and partners adhere to industry standards* for threads and tolerances.

* ISO 2768 (m/f) for metal parts, 2768-m for plastic parts, ISO and ANSI/ASME for threads.

Finishing & Post-processing

Our factories and manufacturing partners adhere to our stringent finishing and post-processing technology requirements.

Quality Documentation

We provide quality documentation* such as first article inspection, material certificates and dimensional inspection reports upon request.

* For CNC machining and sheet metal fabrication.

Certification

Our factories are certified to ISO 9001 quality management systems and our manufacturing partners can also provide additional certifications: ISO 9001, IATF 16949.

Refunds and Reorders

Is your part not up to spec? We’ll correct it or reorder it for you free of charge.

Inspection Process

All parts are double-checked*; by a third-party quality inspection control team.

* All 3D printed parts are inspected at the manufacturing partner.

How We Work?

Start Your Prototyping & Manufacturing Process with Us in Just 4 Simple Steps

Industrial Application

Widely Application

RAPID PROTOS (RPS) is a leading provider of rapid prototyping services and low-volume manufacturing services for mission-critical applications in the Aerospace, Automotive, Medical & Life Science, Oil & Gas, Food and Beverage industries, Semiconductors, and more.

Trusted Clients

Customer Reviews

bronze Parts (24)

“The parts were received as promised, and the quality was great. Given the holidays, l appreciate your prompt follow up and services. After our trade show, we will be in touch. The new models will have your parts on them.”

Richard Jeremy–US

carbon fiber

“I want to say that all of the parts that RPS manufactured for us look perfect. In particular,l am very impressed with the weldment and its professionalism. Please let everyone at RPS that helped us out know that we are very pleased with the quality of manufacture and engineering that went into these parts.”

Evan Hoffman–Italy

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“l am very pleased with everything that RPS has produced for us. l can’t thank you all enough for the quick response and the efforts that your team has put forth to make this business relationship the best it can be.”

Alicia Regnier–UK

Frequently Asked Questions

We accept 3D CAD files in STL, STP, STEP, OBJ IGS, or IGES format and 2D drawings(jpg, png, gif, BMP, pdf) with dimensional details and specific manufacturing requirements.

We respond within 2 hours after your request. Princing quote will be send within 24 hours.

Quality parts less than 1000pcs can be made in as fast as one week if you provide complete 2D and 3D CAD models. More complex parts requiring other special features will take longer. As for shipping, most of our shipments are via air freight, which can take 5-7 days from China to Europe or North America.

We respect your intellectual property. None of your information, images, files or likenesses will be shared with any third party, and it will not be used for any advertising, marketing, or promotional use without your explicit written authorization. If you would like to sign NDA agreement, please contact our team for support.

We follow the ISO/IATF standard and guarantee that we will rework the products or refund them if there are any quality problems. The full-dimensional report, material certification, or first article inspection are provided on request before order placement.

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