Die Casting

NGR specializes in delivering top-notch custom die casting parts and components across a diverse array of industries, which encompass automotive, food processing, dairy, machinery, medical equipment, plumbing, irrigation, mining, petrochemicals, electrical systems, energy, aerospace, submarines, and many others.

Our state-of-the-art die casting machines span a range from 180 to 2,000 metric tons, allowing us to manufacture die casting parts with weights ranging from mere grams to well over 100 pounds. These parts are crafted with exceptional quality, primed for seamless assembly. Additionally, for die casting components that demand aesthetic, functional, or protective coatings, we provide an extensive selection of surface finishing options, including powder coating, e-coating, shot blasting, chrome plating, and high-gloss finishes.

What Is Die Casting?

Die casting is a metal casting method distinguished by the injection of molten metal into a mold cavity under high pressure. This mold cavity is shaped using two rigid tool steel molds that are meticulously machined during the manufacturing process, functioning in a manner akin to injection molds. The majority of die-cast products are crafted from non-ferrous metals, with a particular emphasis on materials such as zinc, copper, aluminum, magnesium, lead, tin, and tin-based alloys. The choice between thermal or cold machines for die casting hinges on the specific metal being cast.

What does the Die Casting process entail?

Steel dies, capable of producing numerous castings in rapid succession, must be fabricated in a minimum of two sections to facilitate the removal of castings. These sections are securely affixed within the machine and positioned so that one remains fixed (referred to as the fixed die half), while the other is movable (known as the syringe half-mold). To initiate the casting cycle, a die-casting machine tightly clamps together the two mold halves. Molten metal is then injected into the mold cavity and swiftly solidifies. Subsequently, the mold half is opened, and the casting is ejected. Die-casting molds can vary in complexity, featuring movable slides, cores, or other components, contingent upon the intricacy of the casting.

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Thus far, the die casting process represents the swiftest method for producing precision nonferrous metal parts when considering the entire production cycle. This stands in marked contrast to sand casting, which necessitates fresh sand molds for each casting. While the permanent mold process employs iron or steel molds instead of sand, it remains notably slower and less precise when compared to die castings.

Advantages of Die Casting

• Basic or intricate forms

• Minimal wall thickness

• Low weight

• Rapid production rates

• Resistance to corrosion

• Unified - consolidating multiple functions into one

• Effective and cost-efficient substitute for alternative methods

• Minimal wall thickness - can go as low as 0.040 inch for petite castings

• Low weight - employing lightweight alloys

• Corrosion resistance - surfaces exhibit smoother characteristics compared to other casting techniques