RpProto provides rapid prototyping and low-volume manufacturing services for customers all over the world.
Our services include CNC Machining, 3D printing, Vacuum Casting / Urethane Casting, Rapid Tooling, Plastic Injection Molding.
We specialize in low-volume manufacturing for automotive, medical, robotics and consumer-electronics industry.
Our cutting-edge rapid prototyping capability will ensure you get high-quality parts fast with competitive pricing.
Manufacturing Solutions
Rapid Prototyping
RpProto has over 20 years of rapid prototyping experience. We produce high-quality prototypes, and quickly turn your designs into real products. We help you to select the process that best meets your requirements. It accelerates development and reduce production costs.
Low-volume Manufacturing
We also provide low-volume manufacturing services for various industries, such as automotive, medical, aerospace, consumer electronics, industrial equipment etc. Our low-volume production processes include CNC machining, 3D Printing, rapid tooling, pressure die casting, and sheet metal fabrication.
Turn your design real product
Vacuum Casting
Advanced vacuum moulding equipment and professional finishing process can quickly provide low-volume production services for small and medium-sized workpieces.
Plastic Injection Molding
We provide a full range of injection moulding services, including rapid mould manufacturing and high-volume injection moulding production.
Sheet Metal Fabrication
Fast and cost-effective sheet metal prototyping services for your projects. Bending, punching, and cutting standard gauge metal for prototypes and manufacturing.
CNC Machining
High-speed, five-axis CNC machining for conceptual models, prototype parts, and low-volume manufacturing
A Reliable
Manufacturing Partner
Companies Served
Parts Manufactured
Years in Business
Countries Served
Upload your CAD files and provide further project details.
We will analyze your design and send you pricing.
We will begin the manufacturing process after you accept our quote. We also offer finishing options.
RpProto will finish the manufacturing process and ship your custom parts to you soon.
Applications of Rapid Prototyping
RpProto’s rapid prototyping services are widely used in all industries to support product development. It is fast and cost-effective. It helps designer validate product designs quickly and efficiently. RpProto delivers high-accuracy prototypes for functional testing, design verification, and low-volume production. Our rapid prototyping solutions reduce development time, minimize risk, and accelerate your path from concept to market-ready product.
Making a prototype of the car, test the appearance and structure. Common parts include: Headlights, Dashboard, Bumper, Interior parts, Engine Parts, Engine Covers etc.
Electronic Product
Plastic functional prototypes made by 3D printing, urethane casting, or CNC machining are the most common and economic way to review the appearance and function of your design
Rapid prototyping is widely used to produce implants, monitoring systems, and many other medical device prototypes. It is also useful in craniocerebral surgery, neurosurgery, oral surgery, plastic surgery, and head and neck surgery to help surgeons in surgical planning.
Robotics Industry
5-axis CNC machining is widely used to make robotic component, since robotics components such as articulated arms and reducer housings require complex geometries, tight tolerances.
Why You Should Choose RpProto
RpProto is an ISO 9001:2015 certified manufacturer committed to strict quality management at every stage of production. Our advanced manufacturing technologies ensure exceptional precision and consistency. With fully equipped in-house measuring and testing facilities, we guarantee that every material and part meets your exact specifications.
Rapid Response
We will review your design and specifications and reply soon when we receive your CAD files.
Tight Tolerances
We make precise prototypes with tight tolerances for all industries, such as lighting, automotive, aerospace and medical.
Quality Assurance
We have a strict quality control and management system throughout the manufacturing process.
Lower Cost
The costs are around 20% to 40% cheaper than in Europe and America because of our highly automated facility and lower running costs.
One-Stop Service
From rapid prototyping and low-volume manufacturing to finishing/assembly, we will provide all the services you need.
Samples of Parts we made
What is Rapid Prototyping?
Rapid prototyping is a set of manufacturing technologies to quickly produce products from CAD data. We use rapid prototyping to validate product designs, test functionality, and evaluate form, fit, and material performance before moving to full-scale production.
The most common processes includes 3D printing, CNC machining, urethane casting, and rapid injection molding, and sheet metal fabrication.
Compared to traditional manufacturing, rapid prototyping significantly reduces lead time, lowers development costs, and allows fast design iteration. It is widely used in industries such as automotive, aerospace, medical devices, consumer electronics, and industrial equipment to accelerate product development and minimize risk.
What Is Low Volume Manufacturing
Low volume manufacturing is a rapid production method that precedes full-scale production. Low-volume manufacturing is ideal for those who need small quantities of finished parts, varying from thousands to hundreds of thousands.
It is becoming a more common choice for many product categories, as it allows for a lower initial investment in tooling and materials while also allowing for fast market entry.
FAQ
How quickly can I receive a prototype?
Lead times vary by process: CNC machining prototypes typically ship in 3–5 business days, 3D printing in 1–3 days, and vacuum casting in 7–10 days depending on quantity. Injection molding with rapid tooling generally takes 25–35 days. Rush orders are available upon request. Once we receive your CAD files, we’ll confirm the exact lead time in our quote within 24 hours.
Which file formats do you accept?
We accept all major 3D CAD and 2D drawing formats, including STEP (.stp), IGES (.igs), STL, SolidWorks (.sldprt/.sldasm), Parasolid (.x_t), CATIA, and Pro/E files. For 2D drawings, we accept PDF, DWG, and DXF. If you’re unsure about compatibility, simply send your file and our engineers will confirm.
What materials are available for rapid prototyping?
We work with a wide range of engineering-grade materials across processes:
- Plastics (CNC/3D Printing): ABS, PC, Nylon (PA6/PA12), PEEK, POM, PMMA (Acrylic), PP, HDPE
- Metals (CNC Machining): Aluminum (6061, 7075), Stainless Steel (304, 316), Titanium, Brass, Copper, Tool Steel
- Urethane Casting: ABS-like, PP-like, rubber-like (Shore A 20–90), transparent resins
- Injection Molding: ABS, PC, PP, PE, TPU, and most standard thermoplastics
Not sure which material is right for your application? Our engineers can advise on the best material for your functional and budget requirements.
What prototyping technologies do you offer?
RpProto offers a full spectrum of rapid prototyping technologies:
- CNC Machining – Best for high-accuracy metal and plastic parts with tight tolerances (±0.01mm)
- 3D Printing (FDM, SLA, SLS) – Fastest option for concept models and complex geometries
- Urethane / Vacuum Casting – Ideal for 10–200 production-like plastic parts without hard tooling
- Rapid Injection Molding – Cost-effective for 100–10,000+ parts with consistent quality
- Sheet Metal Fabrication – For enclosures, brackets, and structural components
Each process differs in accuracy, material options, surface finish, and cost.
Can you help me select the right prototyping method?
Yes — our engineering team provides free DFM (Design for Manufacturability) analysis with every quote. We evaluate your part geometry, tolerances, functional requirements, and target volume to recommend the most suitable process. Whether you need a single concept model or 500 production-ready parts, we’ll guide you toward the fastest and most cost-effective solution.
Do you offer finishing services?
Yes. We offer comprehensive post-processing and finishing services to meet both functional and cosmetic requirements, including:
- Surface treatments: Sanding, bead blasting, polishing, brushing
- Coatings & painting: Spray painting, Pantone color matching, texture coating, clear coating, primer
- Metal finishes: Anodizing (clear, black, color), electroplating (nickel, chrome, gold), powder coating, passivation
- Assembly: Insert installation, hardware fitting, sub-assembly
All finishing work is done in-house to ensure quality consistency and faster turnaround.
Can I scale from prototyping to production?
Absolutely. RpProto is a one-stop partner for the full product development lifecycle:
- Stage 1 – Concept Prototyping: 3D printing or CNC machined models for design validation
- Stage 2 – Functional Prototyping: CNC or vacuum casting parts for fit, form, and function testing
- Stage 3 – Low-Volume Production: 50–5,000 parts via rapid tooling, vacuum casting, or small-batch CNC
- Stage 4 – Full Production: High-volume injection molding with production-grade steel tooling
Our scalable infrastructure means you won’t need to change suppliers as you grow.
What is the minimum order quantity (MOQ) for rapid prototyping and manufacturing?
Our MOQ is flexible and depends on the manufacturing process:
- CNC Machining – MOQ is 1 piece. Ideal for single prototypes or small batches of custom metal and plastic parts.
- 3D Printing (FDM / SLA / SLS) – MOQ is 1 piece. Best for fast concept models and functional prototypes.
- Urethane Vacuum Casting – MOQ is 10 pieces per mold. Suitable for low-volume production runs of 10–200 parts without hard tooling investment.
- Rapid Injection Molding – MOQ is 50–100 pieces, depending on part complexity and tooling type. Aluminum prototype molds support lower volumes; steel production molds suit higher runs.
- Sheet Metal Fabrication – MOQ is 1 piece for prototypes; low-volume production typically starts from 10 pieces.
There is no large minimum order requirement for prototyping services — we specialize in small-batch and one-off parts. If you need just one prototype or a production run of several thousand, we can accommodate both.