Custom Metal Casting Services
At EVERGREEN’s casting workshop, you can choose from a wide range of casting processes, including shell moulding casting, lost wax casting, sand casting, die casting, and investment casting.
The casting equipment is also comprehensive, including a Sand Casting Electric Furnace, Moulding Line, Wax Injection Machine, and Dewaxing Kettle.
EVERGREEN's Casting Services
We can cast various materials, weights, and shapes of castings for you, ranging from a few grams to several tons. Our manufacturing center has abundant production resources and can provide you with cost-effective castings.
We offer a one-stop solution, from design to samples to small-scale trials to mass production.
- Excellent Mechanical Properties
- High Dimensional Accuracy
- The Optimal Solution
- Lower Costs
- Strict Quality Assurance
- Stable Delivery Date
Main Casting Processes
Related Products
EVERGREEN’s unparalleled metal casting capabilities enable us to provide a wide range of critical components for industries such as rail transportation, construction machinery, agricultural machinery, and telecommunications, including castings such as impellers, manifolds, valve bodies, pumps, engine blocks, and bearing housings.
Die Casting
Sand Casting
Investment Casting (Water Glass )
Investment Casting (Silica Sol)
Shell Moulding Casting
Lost Foam Casting
Centrifugal Casting
Available Materials
Aluminum alloys (such as A380, ADC12), zinc alloys, magnesium alloys
Ductile Iron, Gray Iron, Low-Alloy Steel, High-Alloy Steel, Stainless Steel, Copper
Low-Alloy Steel, High-Alloy Steel, Stainless Steel, Duplex Stainless Steel, Titatium
Ductile Iron, Low-Alloy Steel, High-Alloy Steel, Stainless Steel, Duplex Stainless Steel
Low-Alloy Steel, High-Alloy Steel, Stainless Steel
Iron, Ductile Iron, Low-Alloy Steel, High-Alloy Steel, Copper
Carbon steel, stainless steel, cast iron, copper alloy
Size of Components
Small and medium（≤1.5m）
All Sizes
Small and medium
Small
Medium
Medium
Medium and Large
Weight of Components (Kg)
0.01 - 20(kg)
1 - 500(kg)
0.25 - 50 (kg)
0,1 - 30 (kg)
1 - 50 (kg)
1 - 200 (kg)
5 - 500
Production unit (pcs)
Suitable for large quantities (≥10,000)
Suitable for very low and medium series
Suitable for low and medium series MOQ 50 pcs
Suitable for low and medium series MOQ 100 pcs
Suitable for low and medium series MOQ 300 pcs
Suitable for medium series MOQ 500 - 1000 pcs
Suitable for medium series MOQ 100 - 1000 pcs
Cost of tooling/mould
High(Starting at € 2000)
Low (Starting at € 300)
Low (Starting at € 400)
Low (Starting at € 300)
Moderate (Starting at € 1000)
High (Starting at € 1500)
High (Starting at € 1500)
Needs of Secondary Machining
Low
High
Moderate
Low
Low
Low
Moderate
Product Manufacture Cost
Extremely Low
Low
Low
Medium
Medium
Medium/High
Medium
Dimension Casting Tolerance Acc. With ISO 8062
CT6 - CT9
CT10 - CT12
CT7 - CT9
CT4 - CT6
CT7 - CT8
CT7 - CT8
CT8 - CT10
Minimum of Cast Wall Thickness
0.5 (aluminum), 0.3 (zinc)
6 - 8 mm
4 - 5 mm
2 mm
5 mm
3 mm
3mm - 5mm
Draft Angle Need (deg ° )
0.5 - 2
± 2.0 °
± 1.0 °
± 0.5 °
± 1.0°
± 1.5 °
0
Surface Finish (Ra) µ
Ra 0.8µ - Ra 6.3µ
Ra 50 µ
Ra 25 µ
Ra 3.2 µ
Ra 25 µ
Ra 25 µ
Ra 12.5µ - Ra 25µ
More Capabilities
Mold Flow Analysis
To address potential issues in casting and optimize mold design and process parameters. This helps prevent defects in castings, improve product quality and production efficiency, and reduce trial-and-error costs.
3D Printing Services
EVERGREEN’s 3D printing services enable rapid prototyping, making small batch production and highly customized products economically viable, as well as effectively shortening product development cycles and reducing costs.
3D Scanning Services
For customers who don’t have 3D drawings, we are specially equipped with 3D scanning service, send us your samples and you can get 3D drawings within 2 hours.
Professional Engineers
We have a highly professional team of engineers, all of whom have worked for Fortune 500 companies and have over 20 years of manufacturing experience, enabling us to solve many complex problems for you.
EVERGREEN's Casting Factory
Applications
Rail Train/Locomotive
EVERGREEN provides high-quality castings for high-speed rail, metro, and heavy-duty freight trains, including critical structural components for bogies,impact-resistant brake system housings, and fatigue-resistant connection components. These components are manufactured using high-strength ductile iron (e.g., QT500-7) or special alloy steels, and undergo precise casting and heat treatment optimization to ensure dimensional stability and safe service life even under prolonged vibration and extreme temperature fluctuations. This contributes to the efficient and safe operation of rail transportation systems.
Construction Equipments
For the harsh operating conditions of heavy-duty equipment such as excavators and cranes, we cast wear-resistant and high-pressure core components—including hydraulic valve blocks, bucket tooth seats, and rotary bearing bases—using high-manganese steel (ZGMn13) or chromium-molybdenum alloy steel (such as 42CrMo). Combined with a coated sand casting process, this enhances surface hardness and impact resistance, significantly extending the service life of equipment in sand, gravel, and slag environments while reducing maintenance costs for our customers.
Agriculture Equipments
We conduct in-depth research into the lightweight and durability requirements of agricultural machinery such as tractors and harvesters, manufacturing complex crankshaft housings, transmission housings, and plowing tool brackets. By utilizing high-strength aluminum alloys (A380) or boron steel (27MnCrB5-2), we achieve a 30% reduction in component weight while controlling porosity through low-pressure casting. Additionally, we apply zinc-nickel alloy coatings to enhance corrosion resistance, ensuring reliable and efficient operation of agricultural machinery in humid and dusty environments.
Choose EVERGREEN's Custom Metal Casting Services
Submit a Quick Quote
- Customization Focus: We understand that every project is unique. We don’t just produce castings—we turn your design intentions into reality. From blueprints to final delivery, we provide tailored solutions tailored to your specific needs.
- Process Experts: EVERGREEN is proficient in various casting processes (sand casting, precision casting, die casting, etc.). Our team of engineers will recommend and execute the optimal casting process based on your part’s design requirements (complexity, precision, surface finish), material requirements (performance, cost), production volume, and budget, ensuring the most competitive cost.
- Design and Engineering Support: We provide manufacturability analysis. In the early stages, we use casting simulation software to identify design challenges and offer optimization suggestions (e.g., draft angles, wall thickness uniformity, and radius design) to help you design products that are both functional and easy to cast, thereby reducing risks and costs.
- Material Science: Offer a wide range of alloy selection recommendations to ensure your castings meet specific requirements for strength, hardness, corrosion resistance, heat resistance, or electrical conductivity.
- Full Quality Control: From raw material inspection, process monitoring (temperature, time, pressure), to final product testing (dimensions, appearance, non-destructive testing, mechanical property testing), we establish a rigorous quality control system to ensure every casting meets your requirements and standards.
- One-stop service: In addition to casting itself, we can also provide necessary post-processing (deburring, heat treatment, machining, surface treatment, etc.) to simplify your supply chain.
- Flexible response: Whether it’s single-piece prototype verification, small-batch trial production, or large-volume orders, we can flexibly respond to meet your needs at different stages.
Understanding Metal Casting
What is Metal Casting
In simple terms, metal casting is the process of pouring molten liquid metal into a pre-made mould cavity, allowing it to cool and solidify, and then obtaining a solid metal part (casting) that is identical to the shape of the mold. Metal casting is a metal forming technology that can be used to manufacture parts with complex shapes that are difficult to produce using other manufacturing methods. Furthermore, metal casting is relatively inexpensive but highly efficient.
The Core Value of Metal Casting
- Design flexibility: Cast any shape to achieve complex internal cavities, thin-walled structures, and precise details.
- Material diversity: Use a wide range of metals and alloys, including iron (gray iron, ductile iron, malleable cast iron), steel (carbon steel, alloy steel, stainless steel), aluminum, copper, zinc, magnesium, and more, to meet various performance requirements (strength, wear resistance, corrosion resistance, thermal conductivity, electrical conductivity).
- Cost-effectiveness: For medium to large-scale production, the cost per casting is highly competitive. Mould costs can be spread across a large number of products.
- Production of large/heavy parts: The most economical and efficient method for manufacturing large, heavy structural components (such as machine tool bases, engine blocks, valve housings).
- Integrality: Cast parts are formed as a single piece, eliminating stress concentrations and weak points that may arise from welding or assembly.
- Adjustable material properties: By selecting different alloy compositions and heat treatment processes, the mechanical and physical properties of castings can be precisely controlled.
Common Casting Processes
Sand casting:
- Principle: First, sand is used to make moulds for the parts. Sand casting moulds can be divided into outer moulds (the external shape of the casting) and core boxes (the shape of the casting cavity). These moulds are disposable. Then, liquid metal is poured into the moulds, and after cooling, the moulds are destroyed to obtain the castings. Currently, sand casting is the most widely used and highly adaptable casting method.
- Advantages: Sand casting is the least expensive moulding method in all types of casting, but it can produce oversized parts and offers a wide range of material options, making it ideal for small batch production.
- Disadvantages: Since the molds are made of sand, the surface finish and dimensional accuracy of parts cast using sand casting are relatively low, and secondary processing is generally required.
Precision Casting(Investment casting/Lost Foam Casting)：
- Principle: First, use a malleable material (such as wax) to create the shape of the part (wax mould). Then, cover the surface of the wax mould with multiple layers of refractory material to form a shell. Next, melt the wax mould inside the shell, leaving behind the precise shape of the part. Finally, pour molten metal into the shell.
- Advantages: Precision casting produces parts with high dimensional accuracy and smooth surfaces, enabling the casting of complex, thin-walled components. Additionally, castings require minimal secondary processing, making them ideal for difficult-to-machine materials such as stainless steel and alloy steel.
- Disadvantages: The mould cost of investment casting is relatively high, and the process cycle is also relatively long. It is suitable for manufacturing small and medium-sized, high-precision complex parts.
Die Casting:
- Principle: Die casting uses reusable metal moulds and high pressure to rapidly inject molten alloy (aluminum alloy, zinc alloy, magnesium alloy) into the mould. Most die-casting moulds have internal cooling channels, enabling the die-casting machine to operate continuously.
- Advantages: Die casting is extremely efficient, with high precision and surface quality, and the structure of the castings is very dense.
- Disadvantages: The cost of die casting molds is arguably the highest among all casting methods. The materials suitable for die casting are also limited (mainly aluminum, magnesium, zinc, and copper), and the dimensions of parts are constrained by the mold, making it suitable only for the mass production of small to medium-sized parts.
