Die Casting Tool

Die Casting Mold Making

GEMS is a global contract manufacturer of die cast molds to generate precision Magnesium products, Aluminum parts and Zinc components. When our engineers are involved early in the project, they can help design a tool and part specifically for mass production in consistent quality manner. All of our customers receive insight and expertise throughout all stages of the project. Our tool and die making services include thorough and diligent inspections using high caliber instruments and devices to ensure a quality controlled level of processing accuracy. We will submit engineering samples for evaluation & testing and provide quality reports as necessary till the approval of mass production. Throughout the life of the tooling, we carry out ongoing inspection and maintenance, and we keep complete tool history documentation. Our engineers offer die casting mold making solutions for a variety of industries including consumer electronics, automotive, healthcare, and more. For more information about our company or our tool and die design services, contact us directly.

A quality die casting begins far before the die is ever built. Tooling design is one of our strengths. Working with customer specifications, we consider all aspects of the product design and how the metal will flow within the tool to build dies that produce geometrically complex parts to near net shape. We can help your organization to finalize a casting part design that meets your requirements and expectations while optimizing manufacturability to keep costs and defects to a minimum. We build molds from high-quality tool steel implementing strategies such as predictive wear analysis, and these molds are well checked and maintained before/ after every production run. This means fewer disruptions to your organization and longer life on your tooling investment. 

Types of Die Casting Dies – Die Casting Molds Types

  • Single cavity die– straight forward, has only one cavity
  • Multiple cavities die– has more than one cavity but they are all identical
  • Family die– also has more than one cavity but they are of different shapes
  • Unit die – completely separate dies (also called exchangeable inserts) can be assembled into a master holding die to make varied components

Types of metal materials we use for Die Casting: 

  1. Magnesium Alloy 
  2. Aluminum Alloy
  3. Zinc Alloy

They are normally non-ferrous and their mechanical properties vary greatly to fit almost every type of application a manufacturer may need. 

The Common Properties of Die Casting Alloys:

  • Good corrosion resistance
  • High strength and hardness
  • High thermal conductivity
  • High electrical conductivity
  • Outstanding EMI/RFI shielding properties
  • Good finishing characteristics
Magnesium Die Casting / Aluminum Die Casting / Zinc Die Casting

For the die casting process, your metal material is melted and then transferring into a steel mold- also known as a tool or a die. These die casting molds or die casting tool or casting steel dies allow us to form the metal into the shape of each component with accuracy and repeatability that you need for your project . Once the mold is filled it has a brief cooling off period to allow the metal to harden. With our history of innovation to die casing manufacturing processes, we design and build tools for richly-featured parts with variable wall thickness, holes, threads, internal features, and other necessary elements to avoid secondary operations. 

Contact GEMS-Manufacturing


+86 1392 653 1254




Integrated Factory Resources

We are your one-stop manufacturing solution provider for customized products with the joint effort & support from our 120 partnership subcontractors mainly for the production of metals & plastics. We can expand much faster but the top management decide to keep GEMS a compact, dedicated and professional company, which allows our team to really focus and deliver on your projects without any excuse or compromise. We strive to be a long-term, reliable and trustworthy partner of our customers rather than just being a contractor, and look forward to growing the company with customers’ success.

Manufacturing Veteran Team

With the passing years, we are proud to build up a manufacturing veteran team with rich experience and full expertise to fulfill your specific demand. From mold making, injection molding, die casting, stamping and sheet metal, to 2nd processes like CNC machining, oil spraying, powder coating and chrome plating, and then assembling and packaging and related, we always have someone in house to be an expert to resolve the issues in different stages of product development. We also specialize in providing charger, cable and hub, plus other electronic accessories that support a complete set of product.

Strong Project Management

“Think global, execute local” is the principle of our work. Time, quality and cost are the three key elements to be considered throughout the product development from concept design to mass production. A detailed plan with weekly conference call update is a critical gateway to ensure these three key elements are successfully implemented, also assuring that all parties are on the same page. Communication is the Secret to Success . Everyone works independently to take care his own job, but together we are a team to get things done and are your daily eyes and ears onsite in China.

Flexible Operation & Customization

We offer a wide variety of products, such as mold, component and assembly product, and certain value-added services. For logo or branding product, we have in house resources to complete a color mix that can perfectly match a brand’s unique colors in fast and cost-effective way. Understood the client needs production parts but having a hard time to find a vendor since the order quantity is as low as 1000 or lower. GEMS is well set up for low volume injection molding or die casting projects. Surely our team is also capable of building SPI Class 101 mold that is designed & made for 1 million cycles or more of producing the same high quality parts consistently.