Aluminium Gravity Die Casting
FOB Price US$ 8.20/kilogram
Aluminium gravity casting parts, Aluminum Gravity Die casting, Aluminum cast components -Precision Castings for High-Performance Applications
We are one of the leading manufacturers and exporters of Aluminium Gravity Castings from India. We have been supplying dimensionally precise, pressure-tight Aluminium castings to the global market for many decades. Our facility is equipped with high-quality metal dies, tilting casting machines, and CNC finishing equipment to produce castings that meet international engineering standards. With a consistent focus on quality and delivery timelines, we serve sectors such as automotive, electrical, marine, agriculture, HVAC, and industrial automation. Our team of engineers works closely with clients for prototyping, tool design, and mass production runs, making us a reliable partner for Aluminium casting solutions.
Overview
Aluminium Gravity Casting, also known as permanent mold casting, is a metal casting process where molten Aluminium is poured into a reusable steel or cast iron mold using gravity. The absence of high pressure ensures better control over internal stress, porosity, and structural integrity. This method is ideal for producing medium-to-high-volume Aluminium components where repeatability, consistency, and excellent mechanical properties are required.
Material Grades and Specifications
We cast a variety of Aluminium alloys conforming to global standards. The most commonly used grades include:
| Alloy Code | Standard | Composition Highlights | Application Examples |
|---|---|---|---|
| LM6 | BS1490 / IS 617 | High Silicon, excellent corrosion | Marine, enclosures, pump housings |
| A356 | ASTM A536 | High strength, good weldability | Automotive parts, brackets, gear housings |
| LM25 | BS1490 | Heat treatable, excellent machinability | Electrical casings, valves |
| AlSi12Cu | DIN 1725 | Wear resistance, good castability | Compressor bodies, flanges |
Mechanical Properties of A356 (T6 Treated)
| Property | Value |
| Tensile Strength | 250–310 MPa |
| Yield Strength | 190–240 MPa |
| Elongation | 3–6% |
| Hardness | 70–85 BHN |
| Density | 2.68 g/cm³ |
Manufacturing Process
Our Aluminium Gravity Casting process involves several tightly controlled steps:
- Preheating of reusable metal molds to minimize thermal shock
- Manual or tilting pour of molten Aluminium into the mold cavity
- Solidification under gravity (no pressure)
- Controlled cooling and mold opening
- Fettling, trimming, and sandblasting to remove excess material
- CNC machining for precision tolerances
- Optional heat treatment (T5/T6)
- Final inspection and surface finishing
Machinery Used
- Tilting Gravity Casting Machines
- Permanent Mold Die Systems (Manual & Semi-Automatic)
- Spectrometers for alloy verification
- CNC Machining Centers
- Sandblasting and Vibratory Finishing Units
- CMMs and Digital Vernier Gauges for QA
Finish Options
We offer a wide range of finishes depending on the application:
- As-Cast (Shot Blasted)
- Vibratory Deburred
- CNC Machined Finish
- Powder Coating / Anodizing / Painting
Industries Served
Our Aluminium gravity castings are trusted by various industries:
- Automotive (engine covers, transmission parts)
- Electrical and Energy (motor housings, LED enclosures)
- Marine and Coastal Equipment
- HVAC Systems (valves, impellers, fan housings)
- Agriculture and Irrigation (fittings, pump bodies)
- Industrial Automation and Robotics (tooling bases, brackets)
Dimensional Range and Chart
| Parameter | Range |
| Casting Weight | 50 g to 10 kg |
| Wall Thickness | 3 mm to 12 mm |
| Tolerance (Linear) | ±0.2 mm (machined) |
| Draft Angle | 1° to 2° |
| Surface Finish (Ra) | 1.6 to 3.2 µm |
Typical Parts Produced
- Engine mounting brackets
- Pump and compressor housings
- Electrical motor end shields
- LED heat sink bodies
- Valve bodies and pipe connectors
- Structural supports for enclosures
Turnaround Time
Typical lead time is 4 to 6 weeks from approval of the final drawing. Prototyping and low-volume production can be accelerated to 2–3 weeks with dedicated tooling. We maintain buffer stock for key clients with scheduled deliveries.
Why Choose Our Aluminium Gravity Casting Services
We bring over 30 years of engineering, metallurgy, and manufacturing experience to every project. Clients choose us for:
- Tooling development in 3 weeks or less
- Quick prototyping for design validation
- Custom packaging with client logos and barcodes
- Support for machining, surface treatment, and secondary operations
- Global supply chain and export documentation expertise
- In-house quality lab with CMM and X-ray (on request)
Frequently Asked Questions
- Do you offer heat treatment?
- Yes, T5 and T6 treatments are available for applicable alloys.
- Can you supply machined castings?
- Absolutely. CNC-finished parts are available with tight tolerances.
- What’s the minimum order quantity?
- As low as 200 pieces for small castings; flexible for prototypes.
- Can you develop parts from samples?
- Yes, reverse engineering and 3D scanning are available.
- What are your dimensional tolerances?
- Typically ±0.2 mm for machined faces, ±0.5 mm for as-cast.
- Do you conduct pressure/leak testing?
- Yes, we offer hydro and pneumatic tests for sealed components.
- What surface finishes can you provide?
- As-cast, machined, anodized, powder coated, painted.
- What drawing formats do you accept?
- 2D PDF, 3D models (.STEP, .IGES, .STL)
- Are your products RoHS/REACH compliant?
- Yes, all materials and finishes comply with EU directives.
- Do you supply test reports?
- Yes, including chemical, tensile, hardness, X-ray, and dimensional reports.
Customer Testimonial
“We’ve been sourcing Aluminium gravity cast components from this supplier for 7 years. Their technical team is responsive, deliveries are reliable, and the part quality is consistently excellent—even with complex geometries. Highly recommended for OEM buyers.” — Michaela, Germany
Glossary of Terms
- Gravity Die Casting: Casting method using gravity to fill a reusable mold
- Permanent Mold: A steel/cast iron mold used repeatedly
- Draft Angle: A taper added to vertical walls to allow easy part removal
- Heat Treatment: Controlled heating/cooling to improve mechanical properties
- Shot Blasting: Surface cleaning using high-speed abrasive blasting
Packaging and Shipping
Parts are packed in corrosion-resistant bags or VCI paper and placed in partitioned boxes. Each carton is labeled with part number, batch, and customer code. Wooden crates and pallets used for bulk or export shipping. Custom barcodes and labels available on request.
 Looking for high-precision Aluminium Gravity Die Castings? Email us or WhatsApp us!
