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One of the most exciting modern applications of spin casting technology is its use in rapid prototyping and product development. It is ideal for quickly and economically producing numerous fully functional, fragile parts in high-strength metal or plastic from computer-generated RP models.

Product designers can then subject multiple parts to thorough testing and evaluation in their intended applications. With the new rubber mold materials now available, molds can be made and prototypes or development parts cast in as little as three hours.
Even complex parts usually take less than one day. Thus, design changes in size, function, fit or appearance can be quickly reproduced without requiring a large investment in tooling or machine time.

Spin Cast Advantages

• Achieve a competitive edge with faster "time to market" capabilities
• No costly metal tooling required
• Same-day results with in-house control
• Simple to use technology
• Increase productivity – provides 30-50% more casting cycles per hour, per operator
• No heavy mold cover plate – to handle each cycle
• No lift-over of molds
• Automatically adjusts for mold height – no manual adjustments needed
• All mold handling done at waist level

Maximum Part Size
The maximum part size that can be cast using spin cast technology is 100 x 50 x 35mm (L x W x H) with nominal wall thickness 
of 2.5mm (min.) to 6.5mm (max.).

Metals that can be Cast
ZINC: Commercial grade zinc-based alloys, derived and modified from standard zinc pressure die cast alloys. Zinc alloys are often used as direct replacements for aluminum, iron, copper and low grade steel-based alloys to provide similar strength and/or reduced cost on the same application.

Zinc alloys readily accept a wide variety of decorative and corrosion-resistant surface finishes. They can be painted to match adjacent parts, externally dyed in a variety of colors or chrome plated for a hard, durable finish. They can also be fully electroplated to take on the appearance of brass, bronze, stainless steel, silver, chrome or gold, etc.

High tin, white metal & lead alloys Containing no lead or cadmium. Lightest tin-based alloy for jewelry casting. Highest degree of strength, whiteness and brightness. Castings do not need to be plated. Suitable for intricate shapes, filigree, textured surfaces and for pronging and model making. Normal casting temperatures range from 274 – 330˚C.

Special grade, ready to use zinc-aluminum-copper alloy
This is the most popular spin-casting zinc alloy, ideal for medium-sized parts up to 1kg each, with wall thickness of 16mm or under. Produces a very fine-grain, smooth-surfaced finish with excellent detail and very low porosity. Has high strength and hardness and is fully electroplatable. Normal casting temperatures range from 400 – 420˚C. Provides a very long mold life, usually 30% longer than other commercial grade zinc alloys.

About Objet:

Objet is the technology and market leader in jetting polymer materials to produce high-quality 3-Dimensional models and parts. With our PolyJet™-based systems and FullCure® family materials, even the most complex geometries can be built - easily, quickly and cost effectively - in an office environment.

Please click on the links to the right for more information or contact Objet today!