ISO 9001:2015 Certified
Standardized Quality Management
- +86-173 9807 5880
- quote@rallyplastic.com
Your China vacuum casting service supplier delivers plastic parts manufacturing, Support ABS, NYLON, PP, PC parts and enclosures with vacuum casting silicone molds.
ISO 9001:2015
Certified
Strict NDA
Compliance
RoHS & REACH
Compliant
10+ Years
Manufacturing Experience
Rally Plastic offers custom silicone vacuum casting molds designed for small-batch plastic parts. We guarantee product quality and precision while providing you with fast delivery times.
We specialize in highly flexible, on-demand low-volume manufacturing batches ranging from 10 to 500+ units. Experience true supply chain agility with zero rigid minimum order quantities, making this service the ultimate solution for specialized market distribution, customized product lines, and bridge manufacturing.
Request a Quote
Receive polyurethane vacuum casting parts in just 7 to 10 working days. Our streamlined manufacturing workflow accelerates your time-to-market, empowering your supply chain to respond aggressively to urgent client demands, tight deadlines, and unexpected order surges with total confidence.
Request a Quote
Custom silicone molds cost up to 90% less than traditional hard tooling. By eliminating expensive steel molds, your business can launch short production runs without massive upfront capital. This drastically reduces financial risks while maintaining healthy profit margins for new product rollouts.
Request a Quote
Silicone tooling perfectly captures complex geometries, intricate textures, and ultra-fine details. Your finished polyurethane components seamlessly mirror the cosmetic appearance, structural integrity, and mechanical performance of authentic injection-molded plastics, ensuring premium quality that easily passes stringent industry standards.
Request a Quote
Rally Plastic supplies certified, high-performance casting resins carefully engineered to match your exact mechanical, thermal, and cosmetic requirements.
Rally Plastic provides premium, high-impact ABS materials that deliver exceptional structural rigidity and dimensional stability. Our certified formulations seamlessly integrate with precision silicone molds, allowing you to launch durable, market-ready enclosures and rugged end-use components at a fraction of traditional injection costs.
Electronic housings, medical equipment enclosures, industrial brackets, and consumer appliance panels.
We supply industrial-grade NYLON polyurethanes engineered for high toughness, superior wear resistance, and low friction coefficients. Tailored for dynamic, high-stress components, Rally Plastic guarantees robust mechanical performance that meets stringent B2B quality standards.
Heavy-duty gears, structural hinges, snap-fit fasteners, and internal mechanical sliders.
Rally Plastic offers certified flexible PP resins featuring remarkable fatigue resistance and lightweight characteristics. Engineered for parts undergoing repeated bending and chemical exposure, our reliable materials ensure flawless low-volume production performance.
Living hinges, automotive interior trims, fluid handling components, and flexible packaging clips.
Engineered for high optical brilliance and extreme impact strength, Rally Plastic’s crystal-clear PC materials exhibit outstanding heat resistance and optical clarity. We manufacture transparent components ready for demanding industrial, automotive, and medical applications.
Transparent protective covers, optical lenses, light pipes, and medical device displays.
We deliver top-grade PMMA materials featuring high-gloss surface finishes, brilliant light transmission, and exceptional UV resistance. Rally Plastic ensures your cosmetic parts achieve flawless optical performance and long-term weatherability.
Automotive lighting bezels, clear display panels, decorative exterior trims, and light guides.
Rally Plastic offers a wide range of surface finishing and post-assembly services, enabling even small-batch injection-molded parts to achieve a premium appearance and a customized style.
Rally Plastic offers precise Pantone and RAL color matching, delivering flawless glossy, semi-gloss, matte, or premium soft-touch finishes for market-ready components.
We apply durable chrome, nickel, gold, and sleek metallic finishes, elevating your cast plastic parts with high-end, cosmetic premium aesthetics.
Enhance brand identity with our high-precision logo printing. We flawlessly apply instructional symbols, safety markings, and custom graphics onto any surface.
Our advanced laser engraving services provide permanent serial numbers, compliance labels, and ultra-fine graphical patterns for seamless product tracking and branding.
Rally Plastic delivers complete mechanical assembly, including robust brass threaded insert installation, secure ultrasonic welding, and final multi-part product integration.
Our standard vacuum casting process is outlined below; it takes just four steps to transform your product from concept to physical reality.
01
SLA 3D print an accurate master pattern from your CAD file for precise dimensions.
02
Encapsulate the pattern in liquid silicone, cure it, and remove to form the exact cavity.
03
Inject resins under vacuum to perfectly replicate ABS, NYLON, PP, PC, and PMMA properties.
04
Demold the parts and oven-cure them to maximize mechanical strength, thermal resistance, and durability.
Standardized Quality Management
Eco-Friendly & Safe Polymers
Verified China Factory
Your IP & CAD Drawings are Safe
Certified Engineering Plastics
Upload your 2D/3D files for a fast, competitive quote. Turn your designs into reality.
At Rally Plastic, we implement a strict quality assurance protocol to ensure every low-volume batch meets injection-grade engineering standards and precise cosmetic requirements.
We utilize high-precision Coordinate Measuring Machines (CMM) to verify critical dimensions and tight tolerances on cast components. Every low-volume batch is thoroughly measured against your CAD model to guarantee exact mechanical fitment and alignment.
Our advanced 3D optical scanning equipment captures complex surface contours and fine geometric features with extreme precision. This allows Rally Plastic to perform complete 3D surface deviation analysis, ensuring full visual and geometric compliance before shipping.
To guarantee structural reliability, we conduct rigorous inspections to detect any internal air voids or micro-bubbles. This strict quality control ensures your polyurethane components deliver the maximum mechanical strength and durability required for demanding engineering applications.
Precise dimensional control and batch consistency are integral to our low volume vacuum casting service. Our state-of-the-art facility adheres to ISO manufacturing standards, ensuring that every cast component meets your strict engineering specifications.
| Engineering Parameter | Capability |
|---|---|
| Standard Dimensional Tolerance | ±0.15 mm per 100 mm (ISO 2768-m compliant) |
| Minimum Wall Thickness | 1.5 mm (ensures uniform resin flow & strength) |
| Maximum Part Dimensions | 1000 mm × 800 mm × 800 mm |
| Maximum Shot Weight | Up to 10 kg per single cast part |
| Surface Finish Roughness (Ra) | Ra 0.8 µm – Ra 3.2 µm (Standard matte/textured) |
| Optical Clarity (Clear Resins) | Up to 88% light transmission |
Different industries demand distinct material properties and cosmetic finishes. We don't just pour resin; we engineer custom vacuum casting solutions optimized for your industry's specific mechanical requirements, color matching, and dimensional tolerances.
Robotics require lightweight yet highly durable components for dynamic movement. We specialize in vacuum casting tough, impact-resistant ABS and NYLON polyurethanes for robotic arm joints, internal housings, and structural covers. Our robust silicone tooling ensures every batch delivers the exact mechanical reliability needed for advanced automation systems.
Request A Quote
Drone manufacturing demands ultra-lightweight materials combined with high structural rigidity. Our vacuum casting process flawlessly replicates aerodynamic drone shells, battery covers, and landing gear components using advanced PC and PP casting resins. We deliver flight-ready, low-volume batches without the heavy capital investment of traditional tooling.
Request A Quote
There is zero margin for error in medical equipment. We produce premium medical-grade equipment enclosures, handheld diagnostic device housings, and precision fluidic components. Utilizing certified polyurethane materials and strict ISO standards, we guarantee pristine surfaces and exact color matching for your critical low-volume medical batches.
Request A Quote
Automotive applications require exceptional thermal resistance and precise fitment. We utilize advanced casting resins to manufacture interior trim components, dashboard buttons, HVAC ducts, and crystal-clear PMMA lighting lenses. Get production-grade automotive parts ready for rigorous functional testing and localized market distribution in just 7 days.
Request A Quote
Consumer electronics require flawless cosmetics and precise snap-fit assemblies. Our custom silicone molds perfectly capture ultra-fine details and textures for smart home device casings, wearable tech housings, and remote control covers. We deliver market-ready finishes, including custom painting and electroplating, directly out of our facility.
Request A Quote
At Rally Plastic, our expert engineering team conducts a thorough Design for Manufacturing (DFM) review before any silicone mold is poured. This proactive analysis ensures your 3D CAD files are perfectly optimized for our vacuum casting process, eliminating potential manufacturing risks.
Our comprehensive DFM checklist includes:
Despite being located in China, our delivery speeds rival local suppliers. We partner with DHL, FedEx, and UPS to provide express air freight. Once your parts pass final QA, they reach your facility in North America or Europe within 3 to 5 business days, fully insured and safely packaged.
Find answers about lead times, minimum order quantities, IP protection, quotes, and DFM analysis.
Dimensional shrinkage happens twice: first when the liquid silicone rubber cures around the master pattern, and second when the polyurethane resin undergoes its exothermic chemical reaction. To ensure exact final dimensions, our engineers carefully calculate the combined shrinkage rate, typically ranging between 0.15% and 0.40%.
Building an industrial vacuum chamber requires heavy-duty materials designed to withstand immense negative atmospheric pressure without imploding. Engineers construct the main cylindrical body using thick, high-grade stainless steel or aluminum alloys. A transparent, shatter-resistant acrylic or tempered glass lid is carefully sealed with thick silicone gaskets to maintain absolute airtightness. Finally, an industrial rotary vane vacuum pump is connected via heavy-duty hoses to rapidly evacuate air, ensuring a precise, bubble-free polyurethane casting process every single time.
After the initial demolding phase, polyurethane components are placed inside specialized thermal ovens for secondary curing. This controlled heating process significantly accelerates the molecular cross-linking within the polymer matrix. Proper thermal treatment maximizes the ultimate mechanical strength, high-temperature resistance, and structural rigidity of the final parts. Without this critical step, engineering materials like ABS or PC polyurethanes might remain slightly pliable, failing to meet the strict dimensional stability required for rigorous applications.
Internal voids primarily occur due to moisture contamination within the liquid polyurethane resin or insufficient negative pressure during the injection phase. To prevent these defects, Rally Plastic's engineers thoroughly degas the mixed resins under deep vacuum before pouring. Additionally, pre-heating the silicone mold and maintaining optimal vacuum chamber pressure ensures trapped air is completely evacuated. This rigorous environmental control guarantees dense, structurally sound components without any micro-bubbles or cosmetic surface blemishes.
Unlike rigid steel injection molds that require expensive mechanical sliders, flexible silicone molds naturally accommodate complex undercuts. The inherent elasticity of the cured silicone rubber allows technicians to carefully stretch and peel the mold away from the polyurethane component during demolding. This unique flexibility enables the production of highly intricate internal geometries, reverse drafts, and complex threading without the need for additional tooling investments or complicated multi-part assembly processes.
We process premium engineering plastics including ABS, PC, PP, PA, etc. equipped with injection molding machines ranging from 100 to 800 tons.
Upload Your 2D/3D Files for a Fast Quote.