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Custom Cast Molding Services

As an industry-leading contract molding provider, Jiangzhi offers high-quality cast molding services, delivering both cost and weight savings for your projects.
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Cast Molding Capabilities

Name Detail
Size 98.42in. x 78.74in. x 39.37in.
2500mm x 2000mm x 1000mm
Mold Cavities Single or multi-cavity
Mold Life Unlimited (We will open a new mold if the old one worn out)
Mold Storage Forever
Mold Material P20 Steel
General Tolerance Normally +/- 0.008in.（0.2mm)

Cast Molding Materials

Cast molding has a limitation of material selection, the most common material are as follow

  • Polyurethane
  • TPE
  • TPU
  • Nylon

cast molding urethane material

How Does Cast Molding Work

Injection molding is a precise and versatile manufacturing process that transforms raw materials, typically plastic or rubber pellets, into intricate and custom-designed components. The process involves the following key steps:
01

Mixing of raw materials

The raw materials should be mixed well according to the formula proportion before pouring. This mixing process usually takes 2~3 days. However, granular materials can also be used as raw materials for pouring.
02

Melting equipment

The heating principle is relatively simple, as long as the heating to the melting temperature of the material. However, the temperature should be kept as constant as possible when heating, because changes or differences in temperature may lead to differences in the fluidity of the material, thus affecting the processing quality of the product (e.g. product gloss, transparency, etc.). The melting equipment can be carried out by means of an electrically heated pot or by means of a heating device similar to a screw. The material is added into the hopper and fully melted and plasticized through the heating pad device.
03

Heating and melting of materials

Pour the mixed raw materials into the above melting equipment to heat and melt. The material should be fully melted to ensure the physical properties and appearance of the finished product. Different temperatures are used for raw materials of different molecular weights, which should be adjusted gradually according to the actual processing conditions.
04

Material pouring and molding

The melted raw material is transparent and viscous liquid. To ensure its fluidity, it should be poured into the prepared mold immediately. The mold should be clean and smooth to ensure the appearance of the product. When pouring, care should be taken to prevent or minimize air from being encapsulated in the material so as to avoid air bubbles in the product.

Understanding and Preventing Cracks in Molded Parts

Cracks in molded parts are one of the most common and concerning defects that can compromise part integrity. They can lead to failures in critical applications, resulting in costly recalls, repairs, and potential safety hazards. Understanding the types, causes, detection methods, and prevention strategies for cracks is crucial for anyone ...
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Advantages of Cast Molding

From product development models and prototypes to low-volume production runs, this rapid prototyping process is capable of producing parts that are highly similar in color, texture, feel and physical properties to injection-molded parts.

  • Offers a wide variety of material choices such as rigid, flexible, durable, transparent, and high temperature resistance
  • Offers physical properties similar to injection molded parts
  • Suitable for low volume production
  • Ability to re-mold an existing part or hardware using another material

Cast Molding Application

Cast molding is a manufacturing process with broad spectrum of applications, ranging from automotive and industrial components to medical devices and consumer products.

  • Seals and gasket
  • Urethane rollers
  • Custom o-ring
  • Vibration dampers
  • Grommets and bushing

Why Choose Us

Ensuring accurate and intricate part production

Our commitment to precision ensures the flawless production of intricate parts. With advanced technology and a meticulous approach, we guarantee the utmost accuracy in every detail of your molded components.

Meeting diverse industry needs

Our injection molding services address a range of industries, meeting diverse needs effectively. Whether in medical, consumer, or automotive sectors, our adaptability ensures customized solutions tailored to unique industry requirements.

Proven track record in successful projects

Our extensive track record speaks volumes about our prowess in injection molding. Successfully completing a range of projects across various industries, we demonstrate a consistent commitment to delivering quality and meeting client expectations.

Rigorous quality checks for reliable results

Our dedication to excellence is reinforced through rigorous quality checks, ensuring consistently reliable results. Every stage of our injection molding process undergoes meticulous scrutiny, guaranteeing the delivery of top-tier and dependable outcomes.

Contract Manufacturing Cast Molding Solution

mold & tooling service

Mold & Tooling Service

In-house mold fabrication service, from tooling desing to production. Life time mold guranteed.
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design for manufacturability dfm

Design for Manufacturability

Quality manufacturing starts with good design. We develop DFM reports to eliminate defects before production begins.
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plastic surface finish chart

Surface Finishing

From smooth, glossy coating to textured or matte finishes, enhance the appearance and functionality by variours surface finishing.
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assembly service

Assembly Manufacturing

We provide customized assembly services depends on quantity and requirements, we carry out manual, semi-automatic, or fully automated assembly operations.
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FAQs of Cast Molding

What is the lead time for urethane casting?

The speed of the urethane casting process means that you can create prototypes quickly, with lead times as low as 7 days for first articles, and 2 weeks for remaining parts.

For example, under normal wear and tear, a duiability of more than 50 years can be expected for polyurethane insulation systems for buildings, more than 25 years for polyurethane used for insulation of refrigeraors or more than 20 years for the application of polyurethane in vehical bumpers.

Urethane surface temperature rapidly. This heat must be controlled. Melting can occur above 350ºF (175ºC).

If you try to use urethane material while it is too cold, it will not cure. If you suspect the urethane material is cold, allow it to reach room temperature (at least 73°F / 23°C) in the containers before opening.

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