Die Casting Mold Manufacturer & Supplier

Top Custom Die Casting Mold Making Services in China

Are you looking for affordable die casting mold designs and custom die cast molding products? At Junying, we offer fast, cost-effective solutions to reduce the risk and cost of product design and production. With over 10 years of experience, we are a leading China die casting mold manufacturer, providing advanced die casting mold making services for a wide range of industries.

High Quality Die Casting Mold Making Services

Over the years, various methods have been used to manufacture metal components, with die casting molds and CNC machining being the most popular. Die casting is a high-efficiency technique used for mass-producing metal parts. Among the three core elements in die casting production, the die casting mold plays a crucial role. In this process, molten metal is injected into a precision-shaped mold cavity using either low or high-speed casting. The mold, composed of movable surfaces, applies pressure as the metal cools and solidifies. This not only eliminates shrinkage and porosity but also enhances the internal structure, resulting in improved mechanical properties and grain refinement.

Structure of a Die Casting Mold

A standard die casting mold consists of two main components:

Stationary (fixed) mold half – mounted on the die casting machine’s fixed platen.
Movable (ejector) mold half – fixed on the moving platen and includes the casting ejector system.

When casting begins, the two halves are clamped together by die locking force. The interface between both halves is known as the parting line. Opening and closing operations are performed by the ejector side, while undercuts and cavities are managed by mechanical or hydraulic core slides.

Best China Die Casting Mold Manufacturer – Mold Making Service Company

If you have a projects that needs plastics and metal parts service, you are come to the right place! Junying is a top China mould making service company that specializes in providing quality parts, plastic mold/molding parts and die casting mold and parts with affordable price to a wide range of industries such as Lighting, Medical, Auto, Electrical and more. Molds and molded parts including all finishing steps, surfaces and assembly. With more than 10 years of experience, we are able to produce custom die casting molded parts according to customers’ specifications, drawings or samples. We own advanced techniques, highly skilled staff that employ superior tooling and high pressure die casting processes to ensure that the mold parts are of the highest quality and are cost effective. Contact our expert team and get a price for your die casting mold/tooling project, we will quote you a mold price in 24 hours.

Our Die Casting Mold Manufacturing Services

As a trusted mould making service provider in China, we specialize in:

Aluminum and zinc die casting molds
Plastic injection molding tools
Molded parts with complete surface finishing and assembly

Die Casting Mold Materials We Offer

We work with a wide variety of metals and alloys to meet your project requirements:

Aluminum Alloys: 2024, 6061, 6063, 7050, 7075, 5083
Zinc Alloys
Steel and Stainless Steel Grades: 4140, 4130, A36, 1018, 303, 304, 410, 17-4, 2205 Duplex, 440C, 420, 316, 904L

Our Mold Production Capabilities

Our die casting die production facilities include our own CNC machining centers, lathes and milling machines, spark erosion machines and a polishing system.
The following equipment is available for manufacturing die-casting molds:

CNC milling centers
Lathes and precision milling machines
EDM (Electrical Discharge Machining) equipment
Polishing and finishing systems

These allow us to deliver precise and highly durable die casting tools that meet international quality standards.

Why Choose Junying for Die Casting Mold Making?

Here are the advantages Of our Mold Making Service:

✅ Over 10 years of mold making experience with excellent industry reputation
✅ Cost-effective engineering solutions to reduce production costs
✅ Timely delivery to support your R&D and go-to-market timelines
✅ Manufacturing based on your CAD drawings or physical prototypes
✅ High production capacity with stringent quality control
✅ Reliable customer support and responsive communication

What is a Die Casting Mold?

A die casting mold is a specialized tool used in the die casting process to shape molten metal into complex and precise metal parts. It is typically made from hardened tool steel and designed to withstand high pressure and temperature during the injection of molten metal.

Uses of Die Casting Mould Parts

Molding function – accurately fill the liquid metal into the cavity to form complex geometric structures (such as thin walls, threads, and concave and convex textures).
Efficiency improvement – short single molding cycle (several seconds to tens of seconds), suitable for mass production (such as automotive parts).
Precision control – ensure part size tolerance (±0.05mm~±0.1mm) and surface finish (Ra 1.6μm or less).
Material saving – reduce processing allowance and reduce metal waste (such as near-net forming technology).
Quality assurance – reduce defects such as pores and shrinkage through cooling system and exhaust design.

Applications of Die Casting Molds

Die casting molds are essential for producing complex, high-precision metal parts across a wide range of industries. Their ability to handle high-volume, repeatable manufacturing with excellent surface finish and structural integrity makes them ideal for the following sectors:

Industry	Typical Components	Material Selection	Core Advantages
Automotive	Engine blocks, transmission housings, wheel hubs, brackets	Aluminum alloys, magnesium alloys	Lightweight, high strength, heat resistance
Consumer Electronics	Phone/laptop frames, heat sinks, connectors, camera modules	Aluminum alloys, zinc alloys	High precision, thin-wall forming, thermal efficiency
Home Appliances & Hardware	Motor housings, handles, locks, knobs, appliance covers	Zinc alloys, aluminum alloys	Low-cost mass production, complex structures
Aerospace & Defense	Cabin brackets, engine parts, UAV components	Magnesium alloys, titanium alloys	Ultra-lightweight, corrosion-resistant, high reliability
Industrial Equipment	Pump bodies, valves, hydraulic components	Copper alloys, aluminum alloys	Wear-resistant, high pressure resistance, sealing integrity
LED Lighting & Enclosures	LED housings, heat sinks, junction boxes	Aluminum alloys, zinc alloys	Thermal management, corrosion resistance, lightweight
Medical Devices	Equipment housings, brackets, surgical tool handles	Aluminum alloys, magnesium alloys	High precision, corrosion resistance, biocompatibility
Telecommunications	Antenna shells, 5G base station parts, router enclosures	Aluminum alloys, zinc alloys	Electromagnetic shielding, thermal dissipation, durability
Furniture & Interior Fixtures	Chair bases, shelf brackets, curtain rod holders	Zinc alloys, aluminum alloys	Decorative surface finish, strength, cost-effective
Tools & Sporting Goods	Power tool housings, golf club heads, bicycle parts	Magnesium alloys, aluminum alloys	Lightweight, durable, ergonomic designs

Classification & Types of Die Casting Molds

Die casting molds can be categorized in several ways based on materials, structural design, casting process, and application complexity. Understanding these classifications helps manufacturers choose the most suitable mold type for specific production needs.

By Casting Material

Aluminum Alloy Die Casting Molds: The most common type, widely used in automotive and electronic components due to corrosion resistance and lightweight properties.
Zinc Alloy Die Casting Molds: Ideal for small, precision parts such as connectors and locks.
Magnesium Alloy Die Casting Molds: Applied in aerospace and 3C (computer, communication, consumer electronics) products for their ultra-lightweight and high specific strength.
Copper Alloy Die Casting Molds: Suitable for components requiring high thermal conductivity and wear resistance, such as heat sinks and bearings.

By Mold Structure

Single-Cavity Molds: Produce one part per cycle; simple structure and low cost.
Multi-Cavity Molds: Produce multiple parts per cycle; high efficiency, commonly used for small electronic components.
Unit (Modular) Molds: Feature a modular design with interchangeable inserts to produce different parts using the same mold base.

By Casting Process Type

Hot Chamber Die Casting Molds: Used for low-melting-point metals like zinc and magnesium alloys. The injection system is immersed directly in the molten metal.
Cold Chamber Die Casting Molds: Used for high-melting-point metals such as aluminum and copper alloys. Molten metal is poured into the chamber from an external source.

By Application Complexity

Standard Die Casting Molds: Used for producing parts with simple structures, such as housings and brackets.
Precision Die Casting Molds: Required for parts with high surface finish and dimensional accuracy, such as optical components and smartphone frames.

FAQs of Die Casting Mould Making

Below are some of the most frequently asked questions regarding die casting mold making. These insights can help you better understand the process, materials, lead times, customization options, and industry applications.

1. What is the typical lead time for die casting mold making?

Lead time varies depending on mold complexity and design requirements. Typically, it takes 3 to 6 weeks for mold design, machining, assembly, and testing.

2. What materials can be used for die casting molds?

Die casting molds are usually made from hardened tool steel, such as H13, SKD61, or 8407. These materials offer excellent hardness, wear resistance, and thermal stability.

3. Can I customize a die casting mold based on my own design or sample?

Yes, we accept custom orders based on 2D/3D CAD drawings or physical samples. Our engineers will evaluate your design and provide DFM (Design for Manufacturability) feedback before production.

4. How many shots can a die casting mold typically last?

The lifespan of a mold depends on materials and maintenance. A high-quality mold can typically withstand:

Aluminum molds: 80,000 – 120,000 shots
Zinc molds: 200,000 – 1,000,000 shots

5. What are the advantages of custom die casting mold making in China?

Cost-effective pricing
Skilled labor & advanced equipment
Fast turnaround
Rich industry experience
Flexible small-to-large batch production

6. Do you provide mold maintenance and modification services?

Yes. We provide complete mold repair, maintenance, and modification services to extend mold life and ensure consistent production quality.

7. What industries are your die casting molds used in?

Automotive
Electronics
Medical Devices
Lighting
Telecommunications
Industrial Equipment

8. How do I get a quote for a custom die casting mold?

Simply send us your drawings, specifications, or samples, and our team will evaluate and provide a detailed quote within 24 hours.