Top Vacuum Casting/ Urethane Casting Services

Vacuum Casting is a casting process in which a liquid material like plastic or rubber is drawn into a silicone mold to create complex prototypes in vacuum machine. Vacuum casting is also called Polyurethane casting or Urethane casting, which uses silicone moulds to make plastic and rubber components under vacuum. Vacuum casting can be extremely cost-effective in rapid prototype injection moulding parts and worth considering when select rapid prototype services for your plastic or rubber parts. We have been working in the field of customized auto parts for 18 years. Our extensive experience and production capacity will ensure the smooth progress of your project, and our factory in Shenzhen China will reduce your cost.

What type of product is suitable for vacuum injection?

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How does Urethane /Vacuum Casting work?

1. Drawings: Customers need to provide 3D drawings in common formats such as STP and PRT, as well as the production requirements of the prototype.

2. Discussion: Discuss with customers, provide quotation, delivery time, delivery method, etc., to be confirmed by customers.

3. Programming: The programmer analyzes the 3D drawings and type the G code to control the CNC machining center.

4. We put the CNC or 3D printing, SLA, SLS processing prototypes in the center of the simple mold.

5. Then pour liquid silicone into it, divide the silicone mold into two parts with a sharp blade, take the prototype out of the cured silicone mold, and empty out the same cavity as the prototype.

6. Finally, inject the liquid compound molding material into the mold, and wait for the material to solidify in the mold to form the same product as the prototype.

Typical technical specification of vacuum casting

About the minimum wall thickness, we usually recommend wall thickness of 1.5 mm when we discuss with designers. But if it can’t be achieved. In order to ensure the mould is filled properly, a wall thickness of at least 0.75 mm is much necessary.
Accuracy, it’s generally about ±0.3% (with a lower limit of ± 0.3 mm on dimensions smaller than 100 mm).
Maximum part dimensions, It’s about 600*600*400 mm for your parts.
Quantities: Up to 40 parts per mould, it depends on the structure of your parts and the product complexity.
Surface finish: Glossy to matt surface finish can be obtained. You can also choose the color of material you prefer.
Time: Within 24 hr – 5 working days for up to 30-50 parts. More parts, more time.

modo rapid Vacuum Casting Urethane Casting Services

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What is vacuum casting?

Vacuum casting is a fabrication method that uses silicone molds to produce production-quality plastic parts, which also called silicone molding, cast urethane, RTV molding. We need a master pattern by 3D printing/ CNC machining. If we need a silicone mold, then we have to pour platinum silicone around master. Next step is pour liquid polyurethane resin into mold, create polyurethane casting under vacuum situation.

Vacuum casting as a good choice for new product development- low cost and short cycle of small batch processing, has many advantages.

Vacuum casting materials

The wide range of vacuum casting materials needs designers know the mechanical, thermal and physical properties which their parts must display. Materials used in vacuum casting include rubbers , thermoplastics, and resins, all of which can emulate specific characteristics and properties including degrees of: Our design engineer partners come from a spectrum of sectors including automotive and aerospace, telecommunications and engineering, pharmaceutical and medical, to food production and consumer goods. Hence the material we use should accurately simulate a similarly vast range of industrial materials including ABS, polycarbonate, polypropylene, glass filled nylon, and elastomer rubber.Materials we usually used can simulate the following production materials and properties:

Top 10 vacuum casting plastic manufacturer China

ABS – high strength & rigidity
Filled ABS – fire resistance and retardance
Polyamide(PA) and glass filled nylon – high rigidity
Polypropylene(PP) and HDPR – high elasticity
Polycarbonate(PC) and PMMA – shock resistance, translucence, high temperature resistance

Surface texture/finish
Flexibility
Transparency/translucence
Hardness
Color

Physical appearance quality
Rigidity
Strength
Temperature resistance
UV stability

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Custom vacuum casting prototypes products

Rapid plastic prototypes of cunsumer products

Vacuum casting for VR glasses frame prototype

Among consumer electronic products, VR glasses are one of the most popular electronic products in recent years. We help customers reduce costs and reduce risks in product development through vacuum casting. Most customers from Europe love our cost-effective prototype solutions.

How about talking with Modo Rapid? An expert prototyping factory in Shenzhen China

Vacuum casting prototypes for medical devices

The material can be ABS, acrylic, PC, PA, silicone, soft rubber, etc. Assembly accuracy 0.1mm. Avoid mold costs, save costs, fast delivery, support small batch customization. Vacuum casting refers to the use of 3D printed/CNC machined templates to make silicone molds in a vacuum state, we usually use ABS, acrylic, PC, PA, silicone, soft rubber and other materials for casting in a vacuum state, so as to clone out the same as the original. Identical copy of the template. A silicone mold can be used about 20 times. It also depends on the structural complexity of your product. It can also be combined with the color according to the customer’s requirements. The vacuum complex molding technology has fast speed, low cost, greatly reduces the development cost, cycle and risk of the product, and is widely used in many fields.

Prototype for Custom Sweeper

The appearance requirements of the sweeper are relatively high, we paint it in semi-glossy white. After the surface of ABS is sprayed with metallic paint, it shows the unique luster of metal, which is the same as the real metal prototypes. Help customers win the favor of customers at the exhibition.

If you are going to attend CES, please do not hesitate to contact us for prototypes.

Electronic instrument housing prototype

The dashboard cover is generally made of plastic PC. PC plastic has low molding shrinkage and good dimensional stability; in addition, PC plastic has good fatigue resistance and heat resistance.

For more custom enclosure/case prototypes, please contact Modo Rapid for free quote.