Die Casting

Metal Alloys Die Casting Manufacturer in China

— Die casting is a metal casting process that is characterized by forcing molten metal under high pressure into a mold cavity. The mold cavity is created using two hardened tool steel dies which have been machined into shape and work similarly to an injection mold during the process. Die castings are characterized by a very good surface finish and dimensional consistency.

Die casting is commonly used for producing a wide range of metal parts, including components for the automotive industry (such as engine blocks, transmission housings, and steering components), consumer electronics, appliances, and industrial machinery. The process offers several advantages, including high precision, repeatability, and the ability to produce complex shapes with tight tolerances. Additionally, die casting can be a cost-effective method for high-volume production due to its efficiency and minimal material waste.

At GEMS-MFG, we seamlessly integrate cutting-edge metal die casting techniques with Lean production principles to expedite the introduction of your products to the market—enhancing efficiency, speed, and intelligence. Acknowledged for our operational prowess and commitment to quality, especially in highly regulated sectors, we assist in materializing your vision. Our expertise spans from the initiation of new product launches to the meticulous assembly of high-level systems and the seamless handling of ultra-high volume automated assembly processes through metal die casting. Additionally, we are dedicated to optimizing productivity, elevating quality standards, enhancing responsiveness, and refining the precision of decision-making at every stage of the product lifecycle.

Die Casting Manufacturing Processes

Our Advantages of Custom Die Casting Services in China

Material Options And Applications

With the natural properties of metal, parts produced by die casting are stronger, more rigid and have a longer life period than parts made by other processes like 3D printing and injection molding. When it comes to material choices and considerations, GEMS team will gladly discuss your specific application and assist you in determining whether die casting is the best casting process for you. And, if that’s the case, which method of die casting will supply you with the best result.

Dimensional Accuracy and Tight Tolerance

When you cast a part, you can achieve complex net shapes with variable wall thicknesses and tight tolerance, including external threads and internal features with minimal draft angle that reduce secondary operations to the minimum. CNC machining is also often applied to high dimensional accuracy for instances where a part is crucial to performance and functionality.

Complex Part Design With Integrated Features

Die casting operations accept complex shapes and geometries that you can combine multiple parts into a single part, eliminating assembly operations and lowering labor costs, with the added benefits of simplified stock control and greater component consistency. 

Efficiency And Repeatability

Once the die has been created, you can cast it over and over again, allowing you to easily build hundreds of thousands or even millions of identical individual parts. Die casting is also preferred because of its precision and repeatability, which are critical for many metal items to fulfill mass production demands.

Varied Surface Finishes

Whilst it’s not always required, the surface finishing for die casting components can be tailored in a variety of options to improve part functioning and product needs, allowing you to finish your piece to your exact specifications. It might include anything from adding a decorative touch to improving chemical resistance, and it’s the last stage in making sure your finished product exceeds expectations.

Reliable, High-Performance Assembly Capabilities

We offer assemblies of Die Casting parts with or without plastic, electronic component and more, so you don’t have to juggle multiple vendors managements, sufferring from various timelines and thousands of moving parts. We aim to simplify the supply chain and increase your profitability.

Request A Die Casting Quote from GEMS MFG

    Custom Die Casting Components Manufacturer

    As a professional die casting company, our customers expect — and we deliver — parts that exhibit the highest caliber of quality. GEMS Manufacturing specialize in turnkey production solutions of high-quality aluminum, zinc, and magnesium die castings. Our comprehensive lineup of services incorporates prototyping and mold making, short and long production runs, CNC machining, finishing, and coating. Our die casting processes are computer-controlled and closely monitored to ensure the highest level of accuracy and repeatability.

    To support end-to-end production, we operate a machining department and offer an extensive selection of finishing and coating options. Serving customers in the medical, electrical, energy, automotive, and consumer products, we accept orders from 100 to 1,000,000. Throughout the entire production cycle, our technically skilled specialists utilize high-tech measuring and test equipment as well as conventional tools to ensure parts conform to specifications.

    Metal Die Casting Materials

    Die casting materials are precisely formulated metal alloys which offer the mechanical properties of medium-strength metals. They are generally several times as strong and many times more rigid than plastics, and their mechanical properties compare favorably with powdered iron, brass, and screw machined steel.

    Designing for proper strength in a product depends on two main factors: strength of the material selected and configuration of the part. GEMS offers the designer material choices in all of the major non-ferrous alloy categories: aluminum, magnesium and zinc.

    • Aluminum Alloy 

    Die casting alloy Al 380 is the most widely used of the aluminum die casting alloys, offering the best combination of properties and ease of production. If offers significant benefits including best combination of casting, mechanical and thermal properties, excellent fluidity, pressure tightness and resistance to hot cracking. It is used for a wide variety of products including but not limited to lighting, automotive, housing and agricultural industries Other alloys including but not limited to A360, A383, A384, A390 and A413 are also used frequently based on the applications.

    • Magnesium Alloy

    Magnesium is the lightest commonly used structural metal. Its use in die cast parts has grown dramatically, often replacing plastic parts with greater strength and rigidity at no weight penalty. Mg alloy AZ91D is the most widely-used magnesium die casting alloy, offering high-purity with excellent corrosion resistance, excellent strength and excellent castability. Corrosion resistance in AZ91D is achieved by enforcing strict limits on metallic impurities. Magnesium’s high cost limits it to weight sensitive applications in aerospace and automotive industries.

    • Zinc (ZAMAK) Alloys

    Zinc alloys used in die casting development possess properties that make production simple, while providing an end-product that is durable. Zinc’s strength and hardness administer high impact strength and stability that make assembly uncomplicated. The high ductility of zinc alloys is ideal for the die casting process with a strong ability to be cast without fracturing under pressure. Zinc offers unmatched electrical and thermal conductivity while maintaining physical strength, strong stability and corrosion resistance. Most common grades include Zamak 2, Zamak 3, Zamak 5, Zamak 7.

    Exploring Die Casting: Precision, Applications, and the Path to the Future

    Why GEMS MFG?

    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.

    Industries We Serve

    Being a professional die casting company, we provide our customers metal parts exhibiting the highest caliber of quality. GEMS Manufacturing specializes in custom manufacturing solutions for aluminum, zinc, and magnesium die casting. Prototyping and mold manufacturing, short and long production runs, CNC machining, finishing and coating are all part of our comprehensive service offerings. To maintain the highest level of accuracy and repeatability, our die casting processes are strictly controlled and closely monitored. We have further CNC machining facilities and a large array of finishing and coating choices to facilitate end-to-end production. We accept orders ranging from 1000 to 1,000,000 pieces from customers in the medical, electrical, energy, automotive, and consumer products industries. Throughout the whole manufacturing cycle our skilled quality inspectors use high-tech measuring and testing equipments as well as conventional tools to verify whether items meet the engineering specifications.

    Die Casting Capabilities

    Magnesium Die Casting

    Aluminum Die Casting

    Zinc Die Casting

    CNC Machining

    Optional surface finishes

    Multi-piece Assemblies w/ or w/t Plastic Parts

    Fixtures & Test Jigs For Quality Control

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