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Die Casting

Similar to injection moulding
but for metals

Use die casting to create higher volumes of complex-shaped
metal parts efficiently and cost-effectively.

Lead times from 3 weeks
Industrial grade materials
From 10 to 100,000+ parts
ISO and IATF certified

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Home Office: 116 Cardigan Road, Office M2.
Headingley, Leeds UK, LS6 3BJ
VAT Number: GB393458263

Factory: Building A, Hongfa Industrial District
Houda Road, Daling Shan, Dongguan,
Guangdong, China

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Hot Chamber Die Casting

Also known as gooseneck casting, hot chamber is the most popular die casting process. A chamber of the injection mechanism is immersed in molten metal and a "gooseneck" metal feed system brings the metal into the die cavity.

Cold Chamber Die Casting

Cold chamber die casting is often used to minimize machine corrosion. The molten metal is ladled into the injection system directly, eliminating the need for the injection mechanism to be immersed in the molten metal.

Export Tooling

Sometimes it makes sense to bring production back closer to home and when it does, HLH is on hand to support with our export metal mould tooling service.

Our Pressure Die Casting Services

HLH offer pressure die casting services which is great for manufacturing higher volumes of metal parts in aluminium, zinc or magnesium. HLH manufactures high quality die cast tools, offer precision die casting and post process machining and finishing options.

Die casting is the manufacturing process of choice when producing high volumes of relatively complex metal parts.

Die Casting Materials


Magnesium metals are extremely light and have excellent stiffness & strength-to-weight ratio. It is commonly used make automotive components and electronical devices.
Magnesium Die Casting

Zinc Alloy

Zinc alloy has high strength and hardness, excellent electrical conductivity, high dimensional accuracy and stability. It can be used to make a variety of jewelry, art casting and mechanical applications.
Zinc Alloy Die casting


Aluminum is strong, light, cost-efficient and has great machinability, making it a popular choice in the aerospace and aviation, automotive, and consumer electronics industry.
Aluminium Die Casting
Magnesium Zinc Alloy Aluminium

How It Works

A mould tool is first manufactured by HLH’s highly skilled toolmakers and engineers. It is then installed on a die casting press and molten metal is injected under high pressure into the tool cavity. The parts can then be finished in a range of ways including powder coating and anodizing.

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Why Choose Die Casting

Die Casting vs Metal Injection Moulding
Metal injection moulding, or MIM, is intricate and requires several steps to create parts. It is well suited for small intricate parts and large volume manufacturing. In comparison, die casting, has fewer steps and is economically feasible for smaller and larger runs when compared with MIM. It is used for creating larger geometrically complex components.

Die Casting is Used For
Producing (up to 100,000+) complex-shaped, industrial grade metal parts from real materials. Die casting is commonly used for making automotive components and decorative hardware.

Advantages of Die Casting

  • Lower cost per part
  • Accurate and repeatable
  • Good surface finish and range of treatments
  • Good for larger and more complex parts


Die cast parts are made in steel moulds, similar to those used in injection moulding, but use low melting point metals such as aluminum and zinc instead of plastics. More metal parts are made by die casting than by any other casting process.

To create the die cast part, molten metal is forced into a mould via high hydraulic or pneumatic pressure. These steel moulds, or dies, produce extremely complex, high tolerance parts in a repeatable process.

Due to its versatility, reliability and accuracy, die casting is widely used for many applications across different industrial sectors, including the automotive, medical, and electronics industries.

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