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Custom Gravity Die Casting Services for Metal Parts

We provide custom gravity die casting services for metal parts, with support for machining, finishing, and stable production from prototypes to repeat orders.

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Minhe Gravity Die Casting Project Support

Minhe supports gravity die casting projects from drawing review and process evaluation to mold-based casting production, subsequent machining, and final delivery. Backed by an ISO 9001 quality management system, we focus on stable execution across key production stages and practical support for custom metal parts with different structures, sizes, and application requirements.

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CAD view of a cast metal engine cover housing with circular openings

Common Materials for Gravity Die Casting

Material Typical Characteristics Common Applications
Aluminum Alloys Widely used in gravity die casting for their light weight, good castability, and balanced mechanical performance. Suitable for parts that require dimensional consistency, machinability, and efficient repeat production. Housings, covers, brackets, automotive parts, pump components, and industrial hardware.
Zinc Alloys Good fluidity, stable dimensional performance, and suitability for smaller cast parts with detailed shapes. Often used where consistent surface quality and production efficiency are important. Small housings, fittings, connectors, hardware parts, and decorative-functional components.
Magnesium Alloys Lower density than aluminum and suitable for lightweight cast parts. Used in applications where weight reduction matters and secondary machining or finishing may also be required. Lightweight covers, structural parts, enclosures, and transport-related components.
Brass / Bronze Good corrosion resistance, machinability, and dimensional stability. Suitable for gravity die cast parts used in fluid systems and industrial applications requiring reliable service performance. Valve parts, pump components, fittings, bushings, and industrial cast components.
Copper-Based Alloys Suitable for selected gravity die casting applications that require good durability, corrosion resistance, or stable performance in demanding service environments. Mechanical fittings, fluid-handling parts, electrical support parts, and specialty components.

Advantages of Gravity Die Casting

Gravity die casting is widely used for metal parts that require better dimensional consistency, repeatable quality, and cleaner surface results than many more flexible molding methods. It is a practical option for custom parts that benefit from stable mold-based production, especially when repeat orders, controlled geometry, and subsequent machining are important.

  • Suitable for repeat production with stable part consistency
  • Better surface finish than many sand-based casting methods
  • Supports aluminum, zinc, and other commonly used non-ferrous alloys
  • Practical for parts that still require machining, trimming, or finishing
Small gravity die cast part with machined hole and flat mounting surfaces

Gravity Die Casting Capabilities

We provide gravity die casting services for custom metal components, supporting stable production for repeat orders and practical requirements for machining, trimming, and surface finishing.

Specification Details
Casting Weight Range 0.5 kg – 50 kg
Typical Alloys ZL101, A356, ADC12
Annual Output 500,000+ castings
Dimensional Tolerance ± 0.3 mm – ± 0.5 mm
Tooling Lead Time 15–25 days
Process Type Gravity Die Casting

Representative Cast Components

Sand cast gearbox housing with machined bore and mounting faces

Sand Cast Gearbox Housing

Sand cast grid plate with ribbed structure and multiple perforations

Sand Cast Grid Plate

Sand cast heavy block housing with large side opening and machined top face

Sand Cast Heavy Block Housing

Sand cast machinery housing with internal cavity and machined openings

Sand Cast Machinery Housing

Sand cast mounting base plate with long cavity and machined rails

Sand Cast Mounting Base Plate

Sand cast rocker arm bracket with pivot holes and machined contact pads

Sand Cast Rocker Arm Bracket

Typical Applications of Gravity Die Casting

Gravity die casting is widely used for custom metal parts across a range of industrial sectors. It is especially suitable for repeat production of non-ferrous components that require good dimensional consistency, cleaner surface results, and practical support for machining or finishing.

Industrial Machinery

Used for housings, covers, brackets, and support parts in general industrial equipment where stable quality and repeat production are important.

Pump & Valve Systems

Suitable for pump housings, valve bodies, covers, and related flow-control components that require machining, sealing surfaces, or corrosion-resistant alloy options.

Construction Equipment

Applied to metal parts used in equipment housings, covers, mounts, and structural support components for construction-related machinery.

Agricultural Machinery

Used for enclosures, covers, support parts, and functional cast components in agricultural equipment and related machinery systems.

Energy Equipment

Suitable for cast metal parts used in power, utility, and related industrial systems where dimensional stability and service reliability matter.

Transportation & Heavy Equipment

Used for repeat-production metal components in transport, utility, and equipment systems that require stable casting quality and secondary machining.

What Is Gravity Die Casting?

Gravity die casting is a metal casting process in which molten metal is poured into a reusable metal mold under the force of gravity to form the required part shape. It is widely used for producing repeat-order metal components with good dimensional consistency, cleaner surface results, and practical support for machining or finishing. The process is commonly applied to housings, covers, pump parts, brackets, and other custom industrial components.

Processed gravity die cast part with machined cavity and mounting structure

Why Choose Our Gravity Die Casting Services

Trusted by manufacturers for delivering repeat-order metal parts with stable quality, practical machining support, and reliable production control.

Stable Casting Quality

We focus on stable casting quality for repeat-order metal parts, with practical dimensional consistency and support for subsequent machining of critical features and surfaces. .

Non-Ferrous Alloy Support

We support commonly used gravity die casting alloys such as aluminum-based materials and other selected non-ferrous alloys for industrial component production. .

Repeat Production Support

Gravity die casting is suitable for projects that require repeat production, stable part consistency, and practical support from mold development to ongoing manufacturing. .

Process Control and Inspection Support

We support mold development, machining, dimensional inspection, and other follow-up processes required for custom gravity die cast parts, helping improve delivery consistency and part quality. .

Our Gravity Die Casting Workflow

From mold development to pouring, cooling, trimming, and final inspection, our gravity die casting workflow supports reliable production for custom metal parts with repeat-order requirements and practical machining needs.

1. Mold Development and Preparation

Metal molds are prepared according to part geometry, application requirements, and production needs to support stable gravity die casting performance.

2. Pouring and Solidification

Molten metal is poured into the prepared metal mold under gravity and allowed to solidify into the required part shape. .

3. Trimming and Cleaning

After solidification and demolding, the casting is trimmed and cleaned to remove excess material and prepare the part for the next production stage. .

4. Machining and Final Inspection

When required, the casting goes through secondary machining and final inspection to support dimensional consistency, functional requirements, and delivery quality. .

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FAQ – Frequently Asked Questions

Gravity die casting is a metal casting process in which molten metal is poured into a reusable metal mold under the force of gravity. It is commonly used for repeat production of non-ferrous metal parts that require good dimensional consistency and cleaner surface results.
Gravity die casting is commonly used for aluminum alloys, zinc alloys, magnesium alloys, and selected copper-based alloys. The choice depends on part function, strength requirements, corrosion resistance, and machining needs.
  • Better dimensional consistency in repeat production
  • Cleaner surface finish than many more flexible molding methods
  • Suitable for commonly used non-ferrous alloys
  • Supports machining, trimming, and other follow-up processes
Gravity die casting is commonly used for:
  • Housings and covers
  • Pump and valve components
  • Brackets and support parts
  • Custom industrial metal components
These parts are often selected for applications that require stable production quality and practical machining support.
Yes. Gravity die cast parts are often machined to meet functional and dimensional requirements. Common follow-up treatments include:
  • Trimming and cleaning
  • CNC machining for holes, threads, and critical surfaces
  • Shot blasting, coating, or painting when required
  • Other finishing processes based on application needs
Quality is supported by:
  • Controlling mold condition and process parameters
  • Managing pouring and solidification conditions
  • Trimming, machining, and dimensional inspection as required
  • Applying practical inspection steps to support delivery consistency and part function

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