Rapid Prototyping Vacuum Casting Silicone Molds with Custom Tolerance and Surface Finish

Brand Name:ABS-like Polyurethanes
Certification:ISO9001 Certificate of quality system/16949
Model Number:Customized
Minimum Order Quantity:10 piece
Delivery Time:9-15 works day
Payment Terms:T/T, Western Union,Paypal
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Location: Shenzhen China
Address: Building 9, first floor,Hengmingzhu Science,Shajing Street shenzhen
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Rapid Prototyping Vacuum Casting Silicone Molds with Custom Tolerance and Surface Finish


Rapid prototyping 3d vacuum casting silicone molds


Vacuum casting, also known as silicone mold, needs to be applied to silicone mold. That is, the product prototype is processed

using 3D printing or CNC, and then the silicone mold is made under vacuum conditions, and PA, POM, ABS and other materials

are poured under vacuum conditions, so as to copy the same parts as the prototype. It can achieve the strength and hardness

of ABS and other materials, and can also be equipped with colors according to customer requirements.


Advantages and disadvantages of vacuum casting


  • Shapes with smooth surfaces can be produced
  • Quality of the samples comparable to mass-produced injection molded parts
  • Inexpensive and short-term mold production
  • High reproduction accuracy
  • Various casting resins available that simulate series plastics
  • Integration of molded and standard parts such as threaded bolts into the plastic parts possible during casting
  • The processing temperature of the casting material must be realizable through the silicone mold

The vacuum casting production process is relatively manual and includes several steps.


Master Pattern Manufacturing

The master pattern is usually manufactured by SLA 3D printing or CNC machining The choice of method depends on the properties and shape of the part to be produced.


Creation of the silicone mold

The master pattern is used to create the imprint in the silicone mold, which will be used to duplicate the parts in the selected material and color. It is also possible to create different types of surfaces by polishing the mold impressions.


Material preparation and vacuum casting

The polyurethane material will be prepared and dyed in the selected color if necessary. Then the silicone mold is placed in the vacuum casting machine and the material is injected into it.


Demolding and solidification

Once the part is cast, the silicone mold is removed and the part is demolded manually. The piece is then put in the oven (a few minutes to a few hours depending on the size of the piece) and the casting operation is repeated several times.


Polishing and application of finishes

During this last step the piece will be deburred and hand finished, before applying the desired finishes (polishing, painting, marking etc.)



The benefits of 3D printing technology


  • Possibility of using flexible, transparent or rigid materials, with mechanical and thermal characteristics similar to those of mass-produced materials;
  • Numerous finishes ;
  • Possibility of overmolding and adding inserts;
  • 3D part tinted in the mass;
  • Wide range of technical resins;
  • Soft/rigid bi-material moldings.

Vacuum Casting Tolerances



Description



Tolerance Notes


Distance Dimensions

+/- 0.15 mm or +/- 0.45 mm per mm, whichever is larger, is typical. Irregular or overly-thick geometries may cause deviances or deflection due to shrinkage


Shrink Mitigation

A shrinkage rate of +0.15% can be expected due to thermal expansion of the liquid, and the response of the flexible mould


Surface Quality

Surface finish is externally smoothed to a satin or matte surface. Grow lines may be present on internal or difficult-to-access features. Polishing or custom finishes must be clearly defined and agreed upon at the point of order


Feature Definition

Sharp corners and text may appear slightly rounded



The choice between vacuum casting and 3D printing depends on the specific application and requirements of the part being produced.

For small to medium-sized production runs, vacuum casting may be more cost-effective and efficient, especially when using 3D printing

to create the master model. However, for one-off or highly customized parts, 3D printing may be the better option.


Our Vacuum Casting Services


Experience high-quality production parts with Vacuum Casting, also known as Urethane or Polyurethane casting.

At JYH, we offer a vast selection of plastic materials and can cast parts ranging from small headphones to large 2-meter car bumpers. Skip the lengthy lead times and tooling costs – choose Vacuum Casting for efficient solutions.



Our Capabilities



Description


Maximum build size



1.9 x 1.6 x 1.5 m


Typical mould life


15 – 25 parts



Materials



Wide range of thermoplastics, rubbers, transparent resins, etc.



Lead time



From as fast as 5 days


Why Choose JYH- precision for Vacuum Casting Rapid Prototyping ​ Services?


In the realm of vacuum casting, a multitude of manufacturers are available for selection. Opting for the correct one holds

paramount importance to achieve your anticipated outcomes.


  • Outstanding Quality and Rapid Performance

At JYH Precision, we believe that quality and speed should go hand in hand. Our approach combines extensive industry expertise with cutting-edge tools and technologies, enabling us to provide top-notch vacuum casting services within tight timelines (usually 5 to 7 days).

  • Enhancing Your Product with Finishing Services

Vacuum casting is just a part of our capabilities. we provide an array of supplementary finishing services that contribute to bringing your product to its full potential. These services encompass machining, media blasting, printing, painting, and beyond.

  • Smart Quotes Tailored to Your Every Project

We recognize that your requirements are distinct, and unnecessary expenses are undesirable. Hence, we refrain from imposing minimum order volumes or dollar values for our vacuum casting services. we ensure swift and precise quotes within 1 hours or less for almost all projects.

  • Supporting Design for Manufacturing and Remote Flexibility

Vacuum casting is frequently utilized for prototyping, we understand that many of the products . To facilitate their refinement, we extend comprehensive design for manufacturing assistance to our clients.



Vacuum Casting Materials



Acrylic-Like


Acrylic-Like is a rigid and uncomplicated polyurethane plastic designed to mimic acrylic (PMMA). It's used to craft components that need some level of translucency, such as light panels, safety screens, and automotive taillights.



ABS-Like


ABS-Like is a versatile polyurethane plastic that imitates ABS thermoplastic. Widely used, it's a reliable option suitable for various parts.



Opaque Elastomer


Opaque Elastomer is a polyurethane plastic designed to replicate diverse rubber-like substances such as TPE, TPU, and silicone rubber.



FAQ:


Q: Are you a trading company or a factory?

A:We are a factory.


Q: How do I get a quote?

A: Please send us your 3d drawing (STEP/IGS, PDF/STP/ etc) and tell us the material, finish and quantity and we will quote within 2 hours.


Q: Can I order one for testing?

A: Yes.


Q: What is your lead time?

A: 5 to 10 working days


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Vacuum Casting Rapid Prototyping Of Small Production Runs For ABS Polyurethanes,JYH is your best injection mold supplier!

Injection Moulding is highly repeatab.


China Rapid Prototyping Vacuum Casting Silicone Molds with Custom Tolerance and Surface Finish supplier

Rapid Prototyping Vacuum Casting Silicone Molds with Custom Tolerance and Surface Finish

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