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Die Casting – HJY

Custom Die Casting Services​

A top professional die casting service provider with 22 years of experience – HongJingYuan is committed to providing die casting services to all walks of life, we have an experienced team to provide solutions for your production needs.

Aluminum Die Casting Machine

What is Die Casting?

Die casting is a casting method in which the molten metal is injected into the mold cavity at the fastest speed under high pressure, and crystallizes and solidifies under high pressure to form a casting. In fact, useing die casting has high production efficiency, so it is suitable for the production of large batches of parts. Compared with other finished metal parts, the die casting process produces less waste and smaller consumables. Die casting machines are divided into hot chamber die casting and cold chamber die casting, and zinc, aluminum, copper, magnesium, lead, tin and their alloys are commonly used in die casting parts metal materials. These materials each have their own advantages. 

Our other die casting services:

Advantages of our Custom Die Casting Services

HongJingYuan, as a die casting service expert for 22 years, can bring you more precise and professional die casting service than other enterprises. At present, our die casting manufacturer has more than 15 professional die casting machines, which can meet the precise needs of various types of die casting parts in various industries. Our service objects include computers, construction, automobiles, communications, ships, and even aviation. and many more. Commonly used alloy materials for die castings are tin, lead, zinc, aluminum, magnesium, copper, etc. It has cooperated with hundreds of enterprises and is widely loved by all walks of life.

  • In terms of craftsmanship, we can manufacture various complex shapes for customers with clear outlines.
  • In terms of production, our die casting manufacturer have high production efficiency,Which are suitable for various large-scale production to quickly solve your production needs.
  • In terms of products, our die casting parts are of high quality and high precision, which are used in all walks of life.
  • In terms of service, we adhere to “the next process is the customer” and “one-stop service”, you only need to provide your production requirements and wait for us to deliver goods to the you.

Die Casting Metal Alloy Selection

Zinc alloy door Lock Parts

Zinc alloys

Zinc alloys have many advantages in die casting, such as good fluidity and durability.

cnc material,Titanium​

Titanium alloys

We provide the highest quality titanium alloy custom die castings to many companies in the medical industry, and our products have been well received.

Custom high bay light fittings|Aluminum alloy die-casting fittings factory

Aluminum alloys

Aluminum alloy is the most common material in die casting and has a wide range of applications. We only provide die-cast aluminum alloy parts with the lowest tolerances for our customers.


Copper alloys

HJY provides you with custom die-casting services for copper alloy materials, with high production efficiency and fast delivery.

Why Choose HJY?

HongJingYuan was founded in 1996, the plant area has reached 15,000 square meters,there are 15 professional die casting machines, and we have served hundreds of enterprises. We are experts in the die casting service industry, providing one-stop service for customers,HongJingYuan makes customers much cheaper and convenience.The following are the advantages of our HongJingYuan die casting service:

80% of our zinc alloy and aluminum alloy raw materials are imported from Australia and Korea。

Each batch of incoming materials has an export certificate, product composition table and SGS test report.

Import the QMS quality management system, from the design and development, production, inspection, sales, use of the whole process of quality management.

With special inspection, self-inspection and mutual inspection, there are more than 50 links in the whole production process, more than 60 quality control points, and more than 100 standards.

We always adhere to the quality concept of “the next process is the customer“, and strictly control each production link to ensure product quality.

Die Casting Process Steps

Mold Design and Manufacturing

According to the design requirements of the parts, a die-casting mold that adapts to the shape is produced.

Injection and Filling

The preheated molten metal is injected into the injection system of the die casting machine.

Part Demoulding

When the metal is fully solidified, the mold is opened and the part is removed from the cavity.


After demoulding, there may be some defects on the surface of the part, which need to be polished and treated.


Parts are inspected and quality controlled to ensure they meet specifications for size, appearance and performance.

How do We Accomplish Your Order for Custom Die Casting Parts?​

Hongjingyuan Hardware & Plastic Products Co., Ltd. was established in 1996, with 22 years of experience. During the 22-year history, our factory covers an area of 5,000 square meters. We have state-of-the-art die casting machinery and equipment, and we have many skilled engineers and die casting workers, whether it is gravity die casting, hot chamber die casting, low pressure die casting, they have mastered it all. Before we process your custom die casting, we will confirm your order with you first, then we will make the mold, the time to make the mold is about 3-5 days, then it will go into the mass production process, if your precision die casting Piece shapes are very complex, so this cycle will be longer.

Outside view of HJY china die casting factory

We Specialize In The Following Industries

New Energy






Medical devices

Machine Bearings

Robot And AI


Military industry


Electronic roduct



Lock Cylinder





Oil&Gas Control Systems

Die Casting Blog

  • die casting
Magnesium Alloys

September 21, 2023/

Magnesium die casting is a metal die casting process used to create magnesium alloy parts that are lightweight but have good strength and corrosion resistance.

Beauty instrument metal shell (3)

September 18, 2023/

In the ever-evolving world of beauty technology, the right aesthetics can make all the difference. That's where HJY comes in. As a trusted custom manufacturer based in Guangdong, China, we specialize in crafting exquisite beauty instrument metal shells that enhance your devices' functionality and elevate their visual appeal.

Aluminum alloy bathroom handle

September 15, 2023/

HJY, a trusted brand hailing from the heart of Guangdong, China, introduces the Aluminum Alloy Bathroom Handle, a stylish and functional addition that brings a touch of elegance to your bathroom decor. Crafted with precision and care, these handles are the epitome of quality, and they are produced using cutting-edge die-casting technology at our state-of-the-art handle die-casting factory.


September 14, 2023/

Die casting and injection molding are two common manufacturing processes, the main difference being the materials processed and the process principles. Die casting mainly manufactures metal parts by heating, melting, and injecting metal alloys into metal molds to create high-precision, complex parts. Injection molding is mainly used to manufacture plastic parts. It achieves efficient mass production by heating, melting, and injecting plastic particles into plastic molds.

Aluminum Alloy Lock Panel Accessories

September 11, 2023/

When you choose HJY, you're not just selecting a product; you're entrusting your security to die-casting manufacturers with an unwavering commitment to quality. Our Aluminum Alloy Lock Panels are a testament to this dedication, providing a robust foundation for your security needs.

Die Casting Parts Surface Treatment

Polishing refers to the use of mechanical, chemical or electrochemical modification of the surface of the workpiece in order to make the surface of the workpiece smooth and flat. As a method of surface treatment, polishing cannot improve the dimensional accuracy of parts, but only serves as a means to enhance specular gloss and smooth surface.

Sandblasting mainly gives a matte visual effect to the surface of the part, but can also be used to mask tool scratches and satin surface finishes.

The metal or alloy is used as the anode, and the oxide film is formed on the surface under electrolysis. This surface treatment can improve the tinting strength and corrosion resistance to protect the metal surface. The most commonly used is the anodizing of aluminum and its alloys.

It refers to the reaction of metal or its corrosion products with the components in the environment to form a protective film to achieve the purpose of protecting the surface. Divided into electrochemical method (anodizing) and chemical method. The chemical method is through liquid dipping or spraying, so that the obtained chemical conversion coating is wear-resistant and reduces friction.

Coating is a protective or decorative layer covering a metal or non-metal surface. It can not only protect the surface of the object, but also play a decorative role and improve the beauty of the object. If special paint is used, the surface can also have functions such as waterproof, fireproof, and insecticide.

Through the principle of electrolysis, a layer of other metal films are plated on the metal surface to enhance the beauty and prolong the service life of the object. Depending on the metal being plated, the end result will also be different. For example, silver plating can increase conductivity and aesthetics, copper plating can improve corrosion resistance, etc.

Degreasing is degreasing treatment. There are mainly three methods, dipping method, spray washing method and brushing method. Degreasing can improve the surface finish.

The powder coating process is the application of powder coatings to parts, which are baked to create a hard finish that is stronger and more wear-resistant than traditional coatings, available in a wide range of colors, and compatible with all metallic materials.


The role of chemical nickel plating is mainly to increase the wear resistance and corrosion resistance of the parts, and the effect is poor when the surface of the parts is beautified

Contact us, no matter how complex your die castings are, we will show you our strong strength

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