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Rapid Prototyping Factory

Precision
Rapid Prototyping
from China

Over 10 years of excellence in CNC machining, SLA, Vacuum Casting & Injection Molding. Trusted by 10,000+ clients worldwide.

Explore Our Services

About Rainbow Rapid Prototype

Rainbow Rapid Prototype Co., Ltd is a leading manufacturer in Rapid Prototyping and Molding with over 10 years of experience in China. Since 2008, we have served clients across the globe in industries such as Medical Equipment, Automotive, Electronics, and Toys.

We established a branch in the United States in 2008 to better serve our international clients. Our mission is to help innovators move from concept to production quickly, efficiently, and cost-effectively.

  • 10,000+ satisfied clients worldwide
  • Advanced prototyping machinery
  • Functional, durable prototypes
  • Full production support after prototyping
Factory Interior

Our Core Services

From concept to production, we offer end-to-end manufacturing solutions with precision and speed.

CNC Milling & Machining

High-precision CNC milling for metal and plastic parts with tight tolerances. Ideal for functional prototypes and low-volume production.

Rapid Prototyping (SLA/SLS)

Fast, accurate 3D printing using Stereolithography (SLA) and Selective Laser Sintering (SLS) for detailed visual and functional prototypes.

Vacuum Casting

Ideal for small batch production using silicone molds. High-quality replicas in urethane materials that mimic engineering plastics.

Injection Molding

From prototype tooling to full-scale production molds. We support thermoplastics and elastomers for high-volume manufacturing.

Rapid Tooling

Fast turnaround tooling solutions for injection molding, die casting, and stamping. Reduce time-to-market with agile tool development.

Precision Metal Stamping

High-speed stamping for metal components with excellent repeatability. Suitable for automotive, electronics, and industrial applications.

Featured Prototyping Solutions

Explore our most popular rapid prototyping and production services trusted by global innovators.

CNC Machined Part

CNC Aluminum Enclosure

Precision-machined housing for electronic devices with tight tolerances and smooth finish.

Material: 6061-T6 Aluminum

Tolerance: ±0.05mm

Lead Time: 5-7 days

SLA Prototype

SLA Medical Device Prototype

High-detail 3D printed prototype for medical equipment testing and validation.

Material: Biocompatible Resin

Layer Res: 25-100μm

Lead Time: 3-5 days

Vacuum Casting

Vacuum Cast Urethane Parts

Small batch production of 10–50 units using silicone molds and polyurethane resins.

Material: ABS-like Urethane

Batch Size: 10–50 pcs

Lead Time: 7-10 days

Injection Molded Part

ABS Injection Molded Housing

Durable plastic enclosure for consumer electronics with texture finish and branding.

Material: ABS

Mold Life: 10,000–50,000 shots

Lead Time: 2–3 weeks

SLS Functional Part

SLS Nylon Gear Assembly

Functional prototype with moving parts, printed in durable nylon for mechanical testing.

Material: PA12 (Nylon)

Strength: High impact resistance

Lead Time: 4-6 days

Silicone Mold

Silicone Mold for RIM

Custom silicone molds for Reaction Injection Molding (RIM) and low-volume casting.

Material: Platinum Cure Silicone

Life: 20–50 cycles

Lead Time: 5-7 days

Stamped Metal Bracket

Stainless Steel Bracket

Precision-stamped component for automotive and industrial applications.

Material: 304 Stainless Steel

Thickness: 1.5mm

Lead Time: 7-10 days

Rapid Tooling

Rapid Injection Mold

Aluminum-based prototype mold for early-stage production and market testing.

Material: 7075 Aluminum

Life: 1,000–5,000 shots

Lead Time: 2–3 weeks

Why Choose Rainbow?

Quick Lead Time

Get your prototypes in days, not weeks. Fast turnaround from design to delivery.

Advanced Machines

State-of-the-art CNC, SLA, and vacuum casting equipment for unmatched precision.

Wide Material Range

Choose from metals, engineering plastics, elastomers, and biocompatible resins.

Quality Guaranteed

ISO-level quality control with inspection reports and lifetime support.

Industries We Serve

From aerospace to kitchenware, we support innovation across sectors.

Aerospace

Medical

Automotive

Electronics

Kitchenware

Marine

Get in Touch

Have a project? Reach out to our team for a fast quote and expert guidance.

Contact Information

  • China Office:
    Tel: +86 186 2741 1834 (English Speaking)
    Email: info@china-rapidprototype.com
  • American Office:
    Tel: +1-805-693-4799
    Email: Tyse@china-rapidprototype.com
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