Custom Sand Casting Services for Complex Metal Parts
High‑capacity sand casting for large and intricate components. We deliver dimensional accuracy, material flexibility, and turnkey production from tooling to finishing.
Why Choose Meco for Sand Casting Services
We bridge the gap between heavy industrial requirements and precision engineering, offering flexibility for prototypes, low-volume runs, and massive components.
Unmatched Design Freedom
Ideal for extremely large parts and intricate internal passageways using disposable sand cores, eliminating design constraints.
Cost-Effective Tooling
Patterns are significantly cheaper than die casting molds, making sand casting the perfect choice for prototypes and low-volume production.
Turnkey Manufacturing
We provide fully integrated services, including in-house CNC machining to achieve tight tolerances, heat treatment, and surface finishing.
Broad Material Selection
We cast diverse metals including aluminum, steel, stainless steel, ductile iron, and bronze alloys to meet specific mechanical requirements.
End-to-End Management
From initial Design for Manufacturing (DFM) review to quality assurance and global fulfillment, we manage your entire project.
Custom Sand Casting Capabilities
Flexible molding solutions for complex geometries, rapid prototyping, and production scalability.
Green & Resin Sand Molding
We utilize both green sand (clay-bonded) and resin sand (chemically bonded) molding processes. Resin sand provides superior dimensional accuracy and surface finish, while green sand offers a cost-effective solution for a wide range of parts.
- High Precision (Resin)
- Cost Effective (Green)
Complex Core Assemblies
Our expertise in creating and assembling complex multi-part sand cores allows us to produce castings with elaborate internal channels, undercuts, and cavities that are impossible to achieve with many other manufacturing methods.
- Internal Channels
- Multi-Part Cores
Prototypes to Production
Sand casting is the ultimate solution for rapid prototyping and validating designs before committing to high-volume tooling. We support your project from a single piece to medium-volume production runs, ensuring consistent quality at every stage.
- Rapid Prototyping
- Medium-Volume Runs
Custom Sand Casting: Prototype to Production
Get low tooling costs and a fast DFM review for your complex metal parts.
Sand Casting Materials and Standards
Our sand casting process produces large, complex, and durable metal components with high dimensional accuracy and a variety of alloy options for industrial applications.
Aluminum Casting Capabilities
| Applicable ASTM Spec | ASTM B179 |
| Casting Process | Gravity Permanent Mold |
| Typical Alloys | 319, 356, A356 |
| Heat Treatment Options | As‑Cast, T5, T6 |
| Tensile Strength (Typical) | 22–30 ksi |
| Yield Strength (Typical) | 12–22 ksi |
| Elongation (Typical) | 1–5% |
| Dimensional Tolerance ≤ 300 mm | ±0.75–1.5 mm |
| Dimensional Tolerance > 300 mm | ±0.3% of dimension |
| Typical ISO 8062 Class | CT7–CT8 |
| Surface Finish (As‑Cast) | 125–250 µin Ra |
| Minimum Wall Thickness | ~4 mm |
| Maximum Casting Weight | ~25–50 kg |
| Production Volume Suitability | Medium to High |
| Secondary Operations | CNC machining, impregnation, heat treatment |
| Inspection Methods | CMM, X‑ray, mechanical testing |
| Applicable ASTM Spec | ASTM B26 |
| Casting Process | Green / No‑Bake Sand |
| Typical Alloys | 356, A356, 319 |
| Heat Treatment Options | As‑Cast, T4, T5, T6 |
| Tensile Strength (Typical) | 20–30 ksi |
| Yield Strength (Typical) | 10–22 ksi |
| Elongation (Typical) | 2–7% |
| Dimensional Tolerance ≤ 300 mm | ±1.5–3.0 mm |
| Dimensional Tolerance > 300 mm | ±0.5% of dimension |
| Typical ISO 8062 Class | CT9–CT10 |
| Surface Finish (As‑Cast) | 250–500 µin Ra |
| Minimum Wall Thickness | ~6 mm |
| Maximum Casting Weight | 100+ kg |
| Production Volume Suitability | Low to Medium |
| Secondary Operations | CNC machining, heat treatment |
| Inspection Methods | CMM, X‑ray, mechanical testing |
| Applicable ASTM Spec | ASTM B179 |
| Casting Process | Gravity Permanent Mold |
| Typical Alloys | 319, 356, A356 |
| Heat Treatment Options | As‑Cast, T5, T6 |
| Tensile Strength (Typical) | 22–30 ksi |
| Yield Strength (Typical) | 12–22 ksi |
| Elongation (Typical) | 1–5% |
| Dimensional Tolerance ≤ 300 mm | ±0.75–1.5 mm |
| Dimensional Tolerance > 300 mm | ±0.3% of dimension |
| Typical ISO 8062 Class | CT7–CT8 |
| Surface Finish (As‑Cast) | 125–250 µin Ra |
| Minimum Wall Thickness | ~4 mm |
| Maximum Casting Weight | ~25–50 kg |
| Production Volume Suitability | Medium to High |
| Secondary Operations | CNC machining, impregnation, heat treatment |
| Inspection Methods | CMM, X‑ray, mechanical testing |
| Applicable ASTM Spec | ASTM B26 |
| Casting Process | Green / No‑Bake Sand |
| Typical Alloys | 356, A356, 319 |
| Heat Treatment Options | As‑Cast, T4, T5, T6 |
| Tensile Strength (Typical) | 20–30 ksi |
| Yield Strength (Typical) | 10–22 ksi |
| Elongation (Typical) | 2–7% |
| Dimensional Tolerance ≤ 300 mm | ±1.5–3.0 mm |
| Dimensional Tolerance > 300 mm | ±0.5% of dimension |
| Typical ISO 8062 Class | CT9–CT10 |
| Surface Finish (As‑Cast) | 250–500 µin Ra |
| Minimum Wall Thickness | ~6 mm |
| Maximum Casting Weight | 100+ kg |
| Production Volume Suitability | Low to Medium |
| Secondary Operations | CNC machining, heat treatment |
| Inspection Methods | CMM, X‑ray, mechanical testing |
Industries We Serve with Sand Casting
Meco's sand casting foundry specializes in producing large, complex metal components with high structural integrity. From heavy machinery to aerospace prototypes, we deliver precision castings in aluminum, steel, and iron alloys.
Aerospace Components
Meco produces robust aluminum and magnesium sand castings for ground support equipment, large housing structures, and low-volume aircraft components. Our process allows for complex internal cores and rapid prototyping of flight-ready hardware.
View Aerospace SolutionsAutomotive & Transportation
We manufacture heavy-duty sand cast parts including engine blocks, cylinder heads, transmission cases, and intake manifolds. Meco ensures high dimensional accuracy and thermal durability for trucks, buses, and off-road vehicles.
View Automotive SolutionsHeavy Equipment & Construction
Ideal for large, load-bearing components, our sand casting services deliver gearbox housings, counterweights, and torque arms. We utilize high-strength steel and iron alloys to withstand the extreme stress of construction and mining machinery.
View Heavy Equipment SolutionsHome & Industrial Appliances
Sand casting offers a cost-effective solution for manufacturing large compressor housings, mounting brackets, and internal structural components for industrial-grade ovens and washing systems.
View Appliance SolutionsIndustrial Hardware
Meco supplies durable sand cast fittings, valve bodies, pump impellers, and pulleys. Our foundry processes ensure repeatable strength and pressure tightness for fluid handling and general industrial machinery.
View Industrial SolutionsLighting Components
We cast versatile, corrosion-resistant aluminum housings and heavy bases for outdoor street lights and architectural fixtures. Sand casting enables thick-walled designs that provide superior thermal stability and durability.
View Lighting SolutionsMedical & Healthcare
Meco manufactures heavy-duty structural bases and frames for MRI machines, CT scanners, and sterilization equipment. Our sand castings provide the mass and stability required for sensitive medical imaging systems.
View Medical SolutionsTelecommunications
Sand cast aluminum bases and channel brackets are essential for outdoor telecom enclosures. Meco adapts casting alloys to ensure long-term weather resistance and structural integrity for utility infrastructure.
View Telecom SolutionsCommercial Furniture
Designers rely on Meco for weight-optimized cast iron and aluminum bases for tables, chairs, and decorative architectural elements. Sand casting allows for organic shapes and custom textured finishes.
View Furniture SolutionsEnergy & Infrastructure
Meco provides high-integrity sand castings for the energy sector, including turbine housings, large valves, and grid infrastructure components. We specialize in corrosion-resistant alloys for oil, gas, and renewable energy applications.
View Energy SolutionsCustom Sand Casting vs Other Methods
Compare Sand Casting with Die, Gravity, and Investment casting to determine the best manufacturing process for your specific volume, size, and tooling budget.
| Feature | Sand Casting | Die Casting | Gravity Casting | Investment Casting |
|---|---|---|---|---|
| Tooling Cost | Lowest | High (Long life) | Moderate | High |
| Part Size | Very Large (Unlimited) | Small - Medium | Small - Medium | Small / Intricate |
| Best Volume | Low - Medium | High Volume | Medium - High | Low - Medium |
| Surface Finish | Fair (Rough) | Very Good | Good | Excellent |
| Accuracy | Fair (Machining req.) | Excellent | Good | Excellent |
| Best For | Prototypes & Heavy Parts | Speed & Precision | Pressure Tightness | Fine Detail |
Sand Casting FAQ
What is sand casting?
Sand casting is a versatile manufacturing process that uses sand molds to shape molten metal into complex parts. It is valued for its low tooling costs and ability to produce components of nearly any size or weight. Read the full guide here.
What is the typical surface finish?
The as‑cast surface finish is relatively rough (250–900 μin Ra) due to the sand texture. Secondary operations such as grinding, shot blasting, and CNC machining are commonly used to meet functional requirements.
What materials can you sand cast?
We cast a wide range of ferrous and non‑ferrous alloys including aluminum alloys, ductile and gray iron, carbon and stainless steels, and bronze alloys.
What are the main cost drivers?
Cost is primarily driven by pattern and core complexity, alloy type, part weight, and the level of required secondary machining and finishing.
What tolerances can be held?
As‑cast tolerances are typically ±1.5–3 mm. Critical features can be CNC machined to tolerances as tight as ±0.01 mm where required.
How to Get Started
Upload STEP or IGES files along with material requirements.
We review geometry, wall thickness, and draft, then issue a quote.
Pattern tooling is built and first articles are produced.
Once approved, we proceed with casting, machining, and finishing.
High-Integrity Castings, Delivered Reliably
Upload your CAD file today for a fast, no-obligation quote from our engineering team.
