Vacuum Casting Services & Manufacturing
✓ Low-Volume Production: Plastic & Rubber Parts
Advantages of Vacuum Casting Services
- Dedicated Equipment – 2 vacuum casting machines and 2 industrial ovens (max internal dimension 1200×800×500mm), with 3 senior technicians of 10+ years experience.
- Material Replication – ABS, PC, Nylon, POM, and rubber, plus custom formulations (ABS+PC blends, glass fiber reinforcement, UL94 V0).
- Precision Tolerance – GB/T1804-M standard: shrinkage controlled within ±0.3% (parts up to 200mm) and ±0.5% (up to 300mm); all finished products are bubble-free.
- Complete Post-Processing – sandblasting, painting, electroplating, screen printing, polishing, and light transmission treatment.
Overmolding for Silicone Mold Vacuum Casting
- Integrated Overmolding – hard plastic over soft rubber, plastic over silicone, and plastic with pre-embedded metal inserts.
- Adjustable Hardness – one-shot and secondary overmolding processes adjust soft rubber hardness from Shore A30 to A90.
- Cost-Effective – no costly steel mold tooling, excellent cost performance and fast lead times for low-volume production, all completed in-house.
Vacuum Casting Service Advantages
- One-Stop Service – free one-on-one drawing reviews, process planning, and quotation within 48 hours; lead times from 3 to 15 days.
- In-House Production – from prototype verification, silicone mold making, and part forming to finishing, surface treatment, quality inspection, and packaging.
- Proven Economics – ideal for low-volume production (10-500 pieces) of medical components, automotive parts, and smart home enclosures, delivering over 60% cost savings and 80% shorter lead times vs steel mold injection.
Flexible Thin & Complex & Clear PC/PU Parts
- Precision Degassing – vacuum degassing and temperature-controlled curing eliminate shrinkage, warpage, flash, and blooming.
- Thin-Wall Capability – minimum wall thickness of 0.8mm with uniform distribution, minimal deformation, and stable elasticity (Shore A30-A90).
- High Clarity – transparent parts up to 80% light transmittance, PC parts up to 92%, with full/semi/frosted/partial transmission effects rivaling injection molding.
Vacuum Casting Parts
From overmolded soft rubber parts to transparent enclosures — low-volume production with reliable quality.
Vacuum Casting Overmolded Parts
Vacuum Casting Overmolded Parts
Vacuum Casting Overmolded Parts
Vacuum Casting Shell Parts
Vacuum Casting House Sample
Transparent Vacuum Casting Parts
Finishing & Materials Capabilities For Vacuum Casting
Post-processing options and materials for silicone mold casting.
Basic Trimming & Polishing
- Flash & Gate Removal — Precise trimming of parting lines, gate residues, and flash for all cast parts
- Multi-Stage Sanding — Coarse 180#-400# to remove marks; fine 800#-2000# for matte or semi-gloss surfaces
- Ultrasonic Deburring + Hand Finishing — Removes micro-burrs with dead-angle finishing by experienced craftsmen
Surface Polishing & Sandblasting
- Matte Finish Treatment — Fine sanding + matte clear coat for low-gloss, non-reflective texture
- High Gloss Mirror Polishing — Progressive sanding + polishing wheel for mirror-like high gloss
- Tactile Matte Sandblasting — Dry fine sandblasting simulating injection-molded grain texture
Spray Painting & Coating
- Solid Color Painting — Conventional color spraying with uniform color and strong adhesion
- PU Rubber (Soft Touch) Coating — Soft rubbery matte surface with excellent grip and comfort
- UV Clear Coat — Hard protective clear coat for durability and appearance
Common Materials for Silicone Mold Casting
- ABS / PC / Nylon (PA) / POM / Rubber — standard replication materials for vacuum casting.
- Custom Formulations — ABS+PC blends, glass fiber reinforcement, and UL94 V0 flame retardant modification for enhanced rigidity and dimensional stability.
- Transparent Options — standard transparent parts up to 80% light transmittance; PC transparent parts up to 92%.
Vacuum Casting Service Quality
Our products comply with the GB/T1804-M tolerance standard with bubble-free finishes. Full inspection and assembly testing are conducted prior to delivery to eliminate fitting issues, ensuring reliable quality and delivery schedules for every vacuum casting project.
How many pieces can one silicone mold produce of vacuum casting?
Normally, one mold can make 20 to 30 items. The exact quantity depends on product structure, material, and surface treatment.
Is vacuum casting for mass production?
It is ideal for prototyping and small-batch orders (10-500 pieces), not for large-scale mass production.
Can you make products of vacuum casting with different textures and colors?
Yes. We can copy original textures precisely, and also provide custom colors, matte, or glossy finishes.
What post-processing services of vacuum casting do you offer?
We provide trimming, polishing, painting, assembly, and other finishing work as required.
What is the typical lead time for vacuum casting service?
Simple orders take 3 to 5 days. Delivery will take longer for complex parts or special processes.