Gravity Die Casting
Low volume aluminum castings, low gas porosity, with weights up to 25 kg.
In gravity die casting, molten metal is poured into the mold from above, allowing it to fill the cavity from the bottom up through the force of gravity.
DSW Industry has used gravity casting technology in various sectors, including the lighting, medical, marine, machinery, and automotive sectors, for years to save weight and expenses. This approach uses extra sand cores to build components with complicated hollow geometries.
We manufacture various gravity die castings in aluminium and zinc alloys, weighing up to 24 kg, offering competitive prices and exceptional quality.
DSW Industry regularly provides premium, reasonably priced solutions to satisfy customers in many sectors by optimizing our gravity die-casting process.
Gravity Die Casting from Aluminum
With twelve gravity casting machines, DSW Industry is ready to handle a wide range of complicated alloy castings, from small-batch runs to large-scale manufacturing.
This diverse range ensures flexibility in part size, complexity, and material requirements.

Benefits of Gravity Die Casting ?
offers high strength, durability, flexibility, stability, cost-efficiency, and versatile finishes for industrial machinery
Gravity die casting performs exceptionally well when producing low-volume castings with excellent surface quality and exact dimensions. It is commonly employed across automotive, lighting, medical, electrical, and general manufacturing industries.
- Lower start-up costs compared to high-pressure casting
- A higher casting rate than sand casting.
- Reduced gas porosity
- Excellent surface polish with little post-processing needed
- Ability to make undercuts with sand cores
- Castings can be heat-treated
- The improved mechanical and physical qualities surpass those of sand casting
- Cost-effective and efficient process
- High repeatability and low tooling costs due to extended mold life
- Good dimension accuracy
- Strong mechanical characteristics
- Capability for high production rates through automation
From automotive, medical, textiles, and electronics to many more sectors, these benefits make gravity die casting a practical solution.
Aluminum Alloy Options ?
Perfect for lighting, automotive, electronics, home appliances, and more.
Aluminum alloys are perfect for various applications thanks to their unique properties. Alloy A356 and AlSi10Mg are the most commonly used alloys for gravity die casting, making them ideal for applications like pumps and electronics housings. We also work with several other high-quality aluminium alloys, including:
ASTM Standards
- A319
- A356
- A357
- A413
- A201
- A356.2
- A413.1
- A380
- A535
GB Standards
- ZL101
- ZL101A
- ZL102
- ZL107
- ZL108
BS Standards
- LM6
- LM20
- LM25
- LM8
EN Standards
- EN AC-42100
- EN AC-42200
- EN AC-43000
- EN AC-43200
- EN AC-43300
- EN AC-43400
- EN AC-44200
- EN AC-44300
- EN AC-46000
- EN AC-46200
These alloys are classified by industry standards, European norms, and specialized formulations used for specific applications.
Design Considerations
- The main feature of gravity Die-casting design consists of:
- Wall Thickness: Ranges from 3 to 5 mm at a minimum.
- Complex Shapes: Capability to produce intricate and detailed geometries.
- Dimensional Accuracy: High precision, ensuring stability and repeatability.
- Draft Angle: A minimum draft angle of 1 degree for simple part removal.
- Tolerance: ±0.4 mm for dimensions up to 25 mm, with an additional ±0.02 mm for each extra 25 mm.
Aluminum Gravity Die Casting -Industrial Applications
Gravity die casting is widely used in several industries that require durable, high-precision aluminium components. The following are the primary industries that usually make use of gravity die casting:
- Automotive
- Engine Components: Engine blocks, cylinder heads, pistons
- Transmission Housings: Gearboxes, differential housings
- Suspension Components: Wheel carriers, control arms, suspension arms
- Electrical & Electronics
- Enclosures: Protective casings for devices
- Heat Sinks: For heat dissipation in electronics and LEDs
- Marine
- Boat Parts: Marine engines, propellers, hull fittings
- Agricultural Machinery
- Engine Components: Blocks, manifolds for tractors, harvesters
- Hydraulic Parts: Pump housings, valves
- Construction & Heavy Machinery
- Structural Parts: Frames, housings, machine components
- Hydraulic & Pneumatic Parts: Robust parts for machinery
- Medical Devices
- High-Precision Components: Housings for imaging systems
- Consumer Goods
- Home Appliances: Housings for kitchen appliances, electrical frames
- Furniture: Hardware and fittings
- Industrial Equipment
- Pumps & Compressors: Bodies, housings for industrial equipment

Assembly & Installation Services
DSW provides tailored solutions for applications necessitating specific assembly or installation requirements for gravity casting, including:
- Integrating pins directly into the casting partsn
- Machining external threads on casting bosses
- Creating apertures for internal threading
- Post-machining insert installations
- Intricate Assemblies and Kitting
- Tailored Coating and Finishing
- Comprehensive assembly services
Why Go with DSW?
Combining modern technology with 20 years of expertise, we provide premium, dependable gravity die-casting solutions. The following explains why our clients pick us:
- Superior Quality Control: We follow strict standards during every step of production to ensure each part performs well and meets our client’s needs.
- Fast Delivery: Our efficient production processes enable us to meet tight deadlines and provide quick turnaround times.
- Custom Solutions: Working with customers, we help to optimize the design and manufacture to satisfy their needs.
- Expert Engineering Support: Our seasoned engineering staff’s technical knowledge guarantees that every component is maximized to meet cost-effectiveness, manufacturing-friendliness, and performance criteria.
Custom Gravity Casting
Contact DSW today for highly precise gravity die-casting solutions.
Request a quote or learn more about our custom services.