Vacuum Casting Service

we deliver fast, cost-efficient parts that closely replicate injection-molded quality—ideal for validation, pilot runs, and pre-production.

  • Cost-effective for prototypes and small-batch production

  • No hard tooling required, reducing upfront investment

  • Fast silicone mold production with short lead times

  • Good detail reproduction and reliable surface finish

  • Ideal for bridge production before mass manufacturing

Vacuum Casting Service

Vacuum Casting Company from China

Holly specializes in precision vacuum casting, providing rapid prototyping and small-batch production solutions for industries such as automotive, electronics, medical, and industrial equipment. Our advanced process ensures high-quality parts with fine details and smooth surface finishes.

We start by creating a master model using CNC machining or 3D printing, which can be completed in as fast as one day. After tolerance checks and approval, our team produces a high-precision silicone mold within 3-4 days. The vacuum casting process takes another 2-3 days, allowing us to deliver your final parts within 7-14 days.

Holly offers a wide range of materials, from rigid plastics to flexible rubber-like resins, and can produce parts ranging from small components to 2-meter-long automotive bumpers. We use only the highest quality resins from top international brands, ensuring excellent durability and performance.

Explore Vacuum Casting Parts We Manufactured

Holly specializes in Vacuum Casting solutions, delivering high-quality prototypes and low-volume production for various industries. Our product categories include automotive parts, medical device housings, consumer electronics prototypes, industrial enclosures, and custom precision components. With superior surface finish, high accuracy, and material versatility, our vacuum-cast products meet stringent design and performance requirements, ensuring cost-effective and rapid production for your business needs.

Vacuum Casting Engineering & Production Support

We support the key steps that affect vacuum cast part quality, from master model preparation to silicone mold making, material selection, and small-batch replication. Our team helps you achieve prototype parts that closely match final production intent in appearance, function, and feel.

Vacuum Casting Capabilities

Our vacuum casting capabilities focus on fast silicone mold production, production-like material simulation, and consistent small-batch replication for prototype validation, market samples, and pilot production.

Capability Details
Casting Type Silicone Mold Vacuum Casting
Production Volume 1 – 1000+ parts (Low-volume production & Prototyping)
Lead Time Mold Fabrication: 3-7 Days; Production: 5-10 Days
Part Size Part Size Range: 10mm – 1000mm
Tolerance Accuracy ±0.05mm – ±0.2mm (Depending on part complexity)
Mold Life 20 – 50 Castings per Silicone Mold

All vacuum casting projects are reviewed based on part geometry, material simulation needs, mold life, surface finish, and production quantity to ensure stable replication, reliable appearance, and functional prototype performance.

Vacuum Casting Capabilities
thermoplastic materials for injection molding

Vacuum Casting Materials Available

We support a wide range of polyurethane casting materials for vacuum casting, helping simulate the look, feel, and performance of common production plastics for prototypes, market samples, and low-volume parts.

  • PU-like ABS
  • PU-like PP
  • PU-like PC
  • PU-like PMMA
  • PU-like POM
  • PU-like TPU
  • PU-like Rubber
  • PU-like Silicone
  • Transparent PU (PC-like)
  • Transparent PU (PMMA-like)
  • High-Temp PU
  • Flame-Retardant PU
  • Chemical-Resistant PU
  • UV-Resistant PU
  • Color-Matched / Painted PU

Vacuum Casting Finishing Options

We offer a range of finishing options for vacuum cast parts to improve appearance, surface feel, transparency, and product presentation for prototypes, samples, and low-volume production.

Finish Description
Painting & Coating Improves color, gloss, protection, and final appearance
Polishing Improves smoothness and transparency for clear parts
Sandblasting Creates matte or frosted texture with reduced glare
Surface Texturing Adds grip, tactile feel, or visual texture
Tinting Adds color while keeping transparency
UV Coating Improves UV resistance, wear resistance, and gloss
Screen Printing Adds logos, symbols, labels, or product information
Laser Marking / Etching Provides permanent branding or identification marks
Plating / Metal Coating Creates metallic appearance for selected applications
Hot Stamping Adds metallic branding or decorative effects
Vacuum Casting Finishing Options

Industries We Serve with our Vacuum Casting

Vacuum casting is widely used for functional prototypes, market samples, and low-volume plastic parts across different industries.

Vacuum Casting Services FAQ

Vacuum casting is a more economical alternative, especially in small batches. It also provides unique advantages such as an excellent surface finish.

Vacuum casting is the best way to make visually impressive prototypes, but it can also be used for non-mechanical end-use parts such as chassis and covers.

Silicone molds used in vacuum casting have a short life span, generally around 20, so we dispose of them after use.

  • Gray cast iron, nodular cast iron
  • Carbon steel: low carbon, medium carbon, high carbon steel
  • Cast steel alloy: low alloy steel, high alloy steel, special alloy steel
  • Aluminum and its alloys
  • Brass and copper.

As the advantages of vacuum casting mentioned above, vacuum casting can be applied in a wide range of industries. Especially suitable for large and medium-sized castings, vacuum casting can be used for both single-piece and batch production, whereas thin-walled castings are better suited for vacuum casting. Therefore, vacuum castings are mainly used in agricultural machinery, hydraulic systems, rail trucks, cranes and shipbuilding industries.

During vacuum casting, since the surface of the model is covered with plastic film, there is no need to vibrate or beat when drawing the die. Suction and negative pressure make the sand compact, and the sand mould has high hardness and uniformity. Under the heating of molten metal, the cavity is not easily deformed. The existence of negative pressure is conducive to filling the model with molten metal. V process castings have a surface roughness of Ra = 25*2.5*m. The dimensional tolerance of castings can reach CT5 ~ CT7. The negative pressure casting has good appearance and reliable internal quality.

Our preference is the 3D CAD files, such as STP, STEP, X-T, IGS.

Send us CAD files (such as STEP format), and tell us the quantity, material, surface finish, color, or other requirements you need, then we will check and evaluate, and give you a suggestion for the part design and quote you.

Are You Looking For China Vacuum Casting Suppliers?

Contact us for design assistance, a free quote, and expert advice today. We will reply to you in 24 hours.