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Zinc Die Casting and Pressure Die Casting Products - An Overview

Zinc die casting and pressure die casting are popular manufacturing processes used to produce high quality, precise metal components and products. In these processes, molten metal is injected with force into reusable steel molds, where it cools and solidifies into the desired shape before being removed from the mold. The resulting castings have excellent dimensional consistency and surface finish, making them ideal for a wide range of applications across many industries.

In this article, we will provide an overview of zinc die casting and pressure die casting, including the benefits and drawbacks of each process. We will also highlight some of the leading manufacturers of die cast products and components, such as Precifine Die & Casting.

Benefits of Zinc Die Casting

Zinc is a lightweight, affordable, and versatile metal that is commonly used in die casting. Some of the key benefits of zinc die casting include:

- Excellent dimensional accuracy and repeatability. Zinc castings can be produced with very tight tolerances.

- Smooth surface finishes. Zinc has fluid properties when molten, allowing it to easily flow into the fine details of a die cavity. This results in components with good surface finishes.

- High production rates. Zinc has a relatively low melting point, allowing parts to be produced quickly and efficiently.

- Lower tooling costs. Zinc molds and dies are less expensive than tool steel or aluminum tooling. This makes zinc die casting ideal for lower volume production runs.

- Good tensile strength and impact resistance. Zinc castings are stronger than plastic components and have good shock absorbing properties.

- Ability to cast intricate shapes. Complex geometries and thin walls can be produced with high accuracy in zinc.

Common applications of zinc die cast parts include automotive components, hardware, electronics housing, and consumer products. Zinc is especially suitable for producing small, thin-walled components at a relatively low per-unit cost.

Pressure Die Casting Overview

Pressure die casting is a manufacturing process in which molten metal is injected into a mold cavity under high pressure. The pressure allows the metal to better fill the die cavity, producing castings with excellent detail, dimensional consistency, and material properties.

Some key features of pressure die casting include:

- High clamping forces are applied to the mold. This prevents metal leakage and allows high injection pressures.

- Most casts are made with non-ferrous alloys, including zinc, aluminum, magnesium, and copper alloys.

- Fast cycle times. Pressure die casting can produce high volumes of components quickly.

- Excellent dimensional tolerance and surface finishes. Parts can be produced with very precise dimensions.

- Thin walls and intricate shapes can be produced. The high pressures allow the metal to flow into thin or complex contours.

- Castings have high strength and hardness. The rapid cooling under pressure creates fine microstructural grains.

Pressure die casting is widely used to produce high-performance components for the automotive, aerospace, electronics, industrial machinery, and consumer products industries. It's ideal for complex, thin-walled components that require high strength and precision.

Comparing Zinc and Pressure Die Casting

While zinc die casting and pressure die casting share some similarities, there are important differences between the two processes:

- Zinc die casting typically operates at lower clamping forces and injection pressures than pressure die casting. This allows zinc to be used for larger part sizes.

- Zinc has a lower melting point than most alloys used in pressure die casting. This means it can be molded faster, so it is better suited for high-volume production.

- Pressure die castings have better mechanical properties and material strength compared to zinc castings.

- Zinc castings have a smooth surface finish but lack the luster of pressure die castings unless polished or plated.

- Tooling costs are generally lower for zinc die casting than pressure die casting, making zinc better for prototype development or lower volume projects.

- Pressure die castings can have thinner walls and finer details than zinc castings.

So in summary, zinc die casting provides affordable, smooth castings ideal for prototypes or mid-volume production runs, while pressure die casting produces highly precise, high-strength components well-suited for large volume production in the automotive and consumer industries.

Precifine Die & Casting

Precifine Die & Casting, located in Ontario, Canada, is a leading manufacturer of zinc and pressure die cast tooling, components, and assemblies. The company specializes in producing high-quality die cast parts, with exceptional dimensional accuracy and repeatability.

Precifine serves customers across a diverse range of industries including automotive, electronics, industrial, lighting, and hardware. Their capabilities include:

- Zinc and aluminum pressure die casting with shot weights up to 24 lbs

- Vertical parting lines and unscrewing die cast tooling

- Multi-slide and unit dieInsert die cast tooling

- High cavitation tools - up to 8 impression

- Prototype and low volume production services

- Full secondary operations - CNC machining, vibratory finishing, plating, painting, and assembly

- Design and engineering support services

With over 50 years of experience, Precifine is able to deliver cost-effective solutions from design and tooling development through to final part production. They utilize the latest simulation software and proven die casting processes to ensure optimal quality, mechanical properties, dimensional accuracy, and appearance.

Precifine has been recognized with awards such as Ford's Q1 certification and the GM Supplier Quality Excellence Award. Their talented team of engineers, quality inspectors, and skilled trades workers take pride in delivering exceptional customer service throughout the die casting and manufacturing process.

Whether customers require thousands of parts per year or per week, Precifine has the expertise to deliver. They offer production and shipping capabilities tailored to each customer's unique requirements.


Zinc die casting and pressure die casting are efficient, precise manufacturing techniques ideal for producing complex, high-quality metal components and products. Both methods have their unique benefits and drawbacks. Zinc die casting typically offers affordability for mid to high-volume production runs, while pressure die casting is best suited for very-high-volume production due to superior material properties and dimensional precision.

Leading manufacturers like Precifine Die & Casting leverage decades of die casting experience to provide customers with optimal solutions from design through production. By engaging expert partners, companies can ensure their cast metal components achieve required quality, performance, and cost targets. The unparalleled accuracy, repeatability, and capabilities of die casting make it a go-to choice for critical automotive, industrial, consumer product, and other applications. CNC Milling CNC Machining