SAND CASTING
Sand Casting Services
Aluminum Sand Casting Parts
Sand casting for lightweight aluminum components with complex shapes. Suitable for industrial parts requiring strength and corrosion resistance.
Iron & Steel Sand Casting Parts
Casting for heavy-duty metal components requiring high strength and durability. Suitable for machinery and structural applications.
Machined Sand Cast Parts
Cast components combined with CNC machining for improved accuracy. Suitable for parts requiring final dimensions and assembly requirements.
Sand Casting Materials
| Material | Typical Grades | Typical Dimensional Tolerance | Notes |
| Aluminum Alloy | Cast aluminum alloys | As cast: ±0.50-1.00mm / Post-machined: to CNC tolerances per ISO 2768-f upon request | Suitable for larger castings and low-volume production. Standard per ISO 2768-c. Machining allowance required. |
| Cast Iron | Gray iron, ductile iron and similar grades | As cast: ±0.80-2.00mm / Post-machined: to CNC tolerances per ISO 2768-f upon request | Suitable for heavy-duty bases, housings, and machinery components. Standard per ISO 2768-c. |
| Ductile Iron | GGG40, GGG50, QT400, QT500 | As cast: ±1.00-2.00mm / Post-machined: to CNC tolerances per ISO 2768-f upon request | High-strength, wear-resistant parts for heavy machinery, hydraulic components. Standard per ISO 2768-c. |
| Steel / Stainless Steel | Cast steel and stainless casting grades | As cast: ±1.00-2.00mm / Post-machined: to CNC tolerances per ISO 2768-f upon request | Suitable for heavy-duty industrial components, structural frames, and equipment requiring high strength and durability. Standard per ISO 2768-c. |
| Brass / Bronze | Copper alloy sand castings | As cast: ±0.80-1.50mm / Post-machined: to CNC tolerances per ISO 2768-f upon request | Suitable for bushings, marine parts, valves, and wear components. Standard per ISO 2768-c. |
| Magnesium Alloy | AZ91, AM60 | As cast: ±0.80-1.50mm / Post-machined: to CNC tolerances per ISO 2768-f upon request | Lightweight structural components for aerospace, robotics, and automotive applications. Standard per ISO 2768-c. |
Sand Casting Surface Finishes
Zinc Plating
Zinc Plating
Painting
Painting
Powder Coating
Powder Coating
CNC Machining
CNC Machining
Shot Blasting
Shot Blasting
As Cast
As Cast
Sand Casting Across Industries
Sand Casting Tolerances & Standards
| Basic Size Range (mm) | Fine (ISO 2768-f) | Medium (ISO 2768-m) | Coarse (ISO 2768-c) | Very Coarse (ISO 2768-v) |
| 0.5 up to 3 | ± 0.05mm | ± 0.1mm | ± 0.2mm | – |
| over 3 up to 6 | ± 0.05mm | ± 0.1mm | ± 0.3mm | ± 0.5mm |
| over 6 up to 30 | ± 0.1mm | ± 0.2mm | ± 0.5mm | ± 1mm |
| over 30 up to 120 | ± 0.15mm | ± 0.3mm | ± 0.8mm | ± 1.5mm |
| over 120 up to 400 | ± 0.2mm | ± 0.5mm | ± 1.2mm | ± 2.5mm |
| over 400 up to 1000 | ± 0.3mm | ± 0.8mm | ± 2mm | ± 4mm |
| over 1000 up to 2000 | ± 0.5mm | ± 1.2mm | ± 3mm | ± 6mm |
| over 2000 up to 4000 | – | ± 2mm | ± 4mm | ± 8mm |
Sand Casting Capabilities
Engineering Support from Casting Design
Casting Plus Machining Capability
Large & Complex Metal Components
Parts Completed in 15-20 Days
Sand Casting FAQs
How do I get a sand casting quote?
Send your CAD files, material requirements, quantity, and machining or finishing requirements. Our team will evaluate the design and provide a suitable casting solution.
How do you ensure sand casting quality?
We control casting processes through material inspection, dimensional checks, and final inspection to ensure parts meet drawing and application requirements.
Can sand casting be used for production parts?
Yes. Sand casting is suitable for prototype development, low-volume production, and industrial components requiring larger sizes or complex shapes.
What is the lead time for sand casting?
Typical sand casting projects require around 15-20 days depending on part complexity, tooling requirements, material, and post-processing needs.
What surface finishes are available for sand cast parts?
Available finishes include shot blasting, machining, grinding, painting, powder coating, and other surface treatments based on part requirements.
What accuracy can sand casting achieve?
Casting accuracy depends on part size, alloy selection, mold design, and production conditions. Critical areas can be CNC machined after casting for improved precision.
What materials can be used for sand casting?
Available materials include aluminum alloys, cast iron, cast steel, stainless steel, brass, and bronze alloys depending on application requirements.
What sand casting services do you offer?
We provide aluminum, iron, steel, and copper alloy sand casting for prototypes, custom components, and production parts with different sizes and geometries.
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+86 0769-21680692
+86 137 1200 5389
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Email : quote@best-prototypes.com
Address : Block 4, Longguang Innovation Park, Zhen'an East Road
No. 74,Chang'an Town,Dongguan,Guangdong, China
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