Vacuum Casting / Urethane Casting Service at SuNPe

Owns 10 sets of vacuum casting machines

The typical lead time is 7 working days for 10 parts, can expedite if needed

Maximum casting dimension is 2200mm*1200mm *1000mm

Rapid replication of 1-50 pieces of functional prototypes

Close the gap between prototype and production

Vacuum Casting

Direct suction casting

Vacuum casting, also called urethane casting or silicone molding, it is a fast and low-cost technology to create a prototype when you need multiple parts or multiple colors, it also to be used to closely simulate final molded parts or finished products.

sunpu

How Does Vacuum Casting Work?

Generally, using CNC machining or SLA part as a master pattern first, and then create a mold which made from silicone material. The mold duplicate intricate details and textures from the master pattern. Then pour liquid casting material under precise vacuum into the mold, take the copy parts out of the mold and remove excess materials, finally get fine texture and colored parts one by one.

How Does Vacuum Casting Work?

SuNPe Vacuum Casting

Take you into our Vacuum Casting factory

    SuNPe Vacuum Casting

    Welcome to visit the production workshop of sunpe Vacuum Casting online, which will show you the entire production process of Vacuum Casting.

    Vacuum Casting Advantages

    Here are several advantages with Vacuum Casting. High productivity, various PU materials for selection, colorful tinted vacuum casting, multiple texture for options, over-molding and cost effective.

    Vacuum Casting Workshops

    There are 4 vacuum casting workshops at SuNPe.The maximum size that our machine can make is 2200mm*1200mm*1000mm. At present, the maximum weight we can do is 7 kilograms. There are 3 steps to do vaccum casting, let's check.

The Capability For The Vacuum Casting

SuNPe owns 10 sets of vacuum casting machines, which can cast prototypes with the max dimension up to 2200mm*1200mm *1000mm.

We can accurately reproduce the prototypes with original color,over-mold, texture and geometries from the master model and components. These plastic castings will closely represent the mechanical properties of the intended production parts from a steel mold. One silicone mold can cast about 15 to 20 pieces of parts, depends on complexity, painting or original color, size and other factors in different parts. The typical lead time is 7 working days for 10 parts.

Vacuum casting is widely used in various industries at SuNPe, such as Scientific, consumer, medical and automotive industries.

The Capability For The Vacuum Casting
The Capability For The Vacuum Casting

SuNPe vacuum casting material and texture samples

SuNPe has made own vacuum casting material card base on the materials we have, which were made by different hardness(shore 30-90A) and colors we can make,meanwhile we made own surface texture code, which includes 10 basic textures-SP001A to SP010A, also offer custom painting service in house, if you are interesting, please contact us to get the material samples and texture sample .

SuNPe vacuum casting material and texture samples
SuNPe vacuum casting material and texture samples

Vacuum Casting Commonly Used Material Including (Similar PU)

Transparent PU, Soft plastic PU, ABS PU, PP/PE PU, Polycarbonate PU. We purchase PU material from Hei-Cast company, Axson and BJB company.
Vacuum casting polyurethanes resins
Material
Supplier Material Simulation Strength Shore Flexion(MPA) TC  Max Product color description Advantage  Disadvantage Shrinkage
 ABS TYPE
PU8150 Hei-CAST ABS 80-85 shD 1790 85℃ Ivory/white/black/Match any color(90~95%) Good resistance 1
PU8150 DPI ABS 82 shD 1790 85℃ Amber/white/black/Match any color(90~95%) Good resistance 1
NYLON TYPE(GF can be added)
DPI 2180 DPI PA6 87 shD 1950 135℃ White/Black/Match any color(90~95%) High TG 135℃; Corrosion /acid and alkali resistance 1.002
 POLYPRO TYPE
8550 Hei-Cast PP 75-83 shD 600--1300 70℃ Match any color(90~95%) Good resistance 1
COLORABLE ELASTOMERS TYPE
PU8400 Hei-CAST Elastomer 30-90shA / / Milky white/Black/Match any color(90~95%) Good Bend 1
T0387 Hei-CAST Elastomer 30-90shA / / Clear(Tint any color, the transparency is adjustable) Good Bend 1
HIGH TEMPERATURE TYPE
PX 527 DPI PC 80 shD 2600 90℃ White/Black/Match any color(90~95%) High TG 90℃ 1
PX223HT DPI PS/ABS 80 shD 2300 120℃ Black//Match any color(90~95%) except white Ideal TG 120℃, Light fades easily 1
6160 DPI PS/ABS 80-81 shD 2100-2200 220℃ Black Ideal TG 220℃ 1
UL-VO Material TYPE
PU8263 Hei-CAST ABS 83 shD 1800 85℃ Milky white/Match any color(90~95%) 94V0 flame retarding 1
CLEAR Material TYPE
PX521HT DPI PMMA 87 shD 2100 100℃ Clear(Tint any color, the transparency is adjustable) Coloration TG100° 0.996