Zinc door handle machine needs consider die casting machine type, machine tonnage and clamping force, mold design, productivity and cycle time,etc.

Zinc door handle machine selection
Machine type of zinc door handle machine:
- We usually use hot chamber die casting machines for die casting of zinc alloys. Because zinc has a low melting point of about 419.5°C, which makes the process efficient.
- Hot chamber die casting machines offer a high degree of automation, lower material losses and higher production efficiency. These types machines suitable for the production of low melting point materials such as zinc alloys.
Machine tonnage and clamping force:
- Select the appropriate machine tonnage according to the size and weight of the zinc alloy die casting.
- For example, for small zinc alloy die castings, machine tonnage can range from 20 to 750 tons.
- In addition, the clamping force of the machine needs to be strong enough to ensure that the mold remains stable under high pressure.
Mold design and runner system:
- The design of the mold is critical to the quality of the die casting.
- The runner system of the mold should be gradually coalesced from the gooseneck to the gate, avoiding sharp corners to ensure that the metal liquid can fill the mold smoothly.
- In addition, the lubrication treatment of the mold can reduce resistance and maintain the flow rate of the metal liquid.
Production efficiency and cycle time:
- Hot chamber die casting machines have a high production efficiency and can usually produce 400 to 1,000 castings per hour. And even for very small detail castings, certain specialized machines can achieve a production rate of 3,500 castings per hour.
- Therefore, when selecting a die casting machine, the cycle time and production capacity should be evaluated against the production requirements.
Alloy selection and surface treatment:
- Commonly used zinc alloys include Zamak 3 and Zamak 5, of which Zamak 3 is widely used because of its excellent mechanical properties, casting performance and economy.
- In addition, zinc alloy die castings are easy to carry out surface treatment. Such as electroplating, spraying and painting, which further improves the aesthetics and durability of the products.
Cost & Maintenance of zinc door handle machine:
- Zinc die casting can extend mold life and reduce maintenance costs due to its low melting point and good casting properties.
- For example, zinc alloy molds typically have a life of 750,000 to 2 million castings.
- Therefore, when selecting a die casting machine, long-term cost-effectiveness should be considered.
Haichen Zinc door handle machine

Haichen is a die casting machine factory located in Ningbo, China, mainly supplying cold chamber die casting machine and hot chamber die casting machine. Besides machines, we also supply die casting auxiliary equipments.
With over two decades of expertise in crafting “HAICHEN” brand die casting machines, we harness cutting-edge technology and a dedicated team of engineers focused on continuous technical enhancements. This commitment ensures that our customers receive superior quality machines. Our machines are designed for ease of operation, professional aesthetics, and guaranteed precision and reliability.
When selecting a zinc door handle die casting machine, factors such as machine type, tonnage, mold design, production efficiency, alloy selection and cost-effectiveness should be considered to ensure the production of high-quality and cost-effective zinc alloy door handles.