Investment Casting/Precision Castings
Zaozhuang Hengxin Precision Machinery Co., Ltd. is a wholly-owned enterprise integrating research and development, precision casting, and mechanical processing.
Why choose us?
Our factory
The company currently covers an area of 30 acres and has more than 70 employees, including 15 technical personnel. It can produce 1000 tons of precision castings annually.
Product application
Our company produces a wide range of products, which can be applied to fields such as pumps and valves, impellers, power equipment, automotive parts, agricultural machinery, railway equipment, mining machinery, flow casings, engineering machinery, petroleum machinery, etc.
Our certification
Hengxin Company has successively passed ISO9001-2015 quality system certification, German TUV PED4.3/AD2000 quality system certification.
Sales market
Most of our products are exported to countries such as the United States, the Netherlands, Germany, the United Kingdom, Spain, Japan, and South Korea.
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Valve Body 1Product Name: 15DAH6 valve bodyread more
Texture of material: CF8
Weight: 0.67kg
Size (mm): Length 100mm -
Valve Body 2Product Name: DJ15.005-01ZG valve body & DJ25.005-01ZG valve body & DJ40.005-01ZG valve body & DJ50.005-01ZG valve bodyread more
Texture of material: CF3M
Weight: 1.2-3.6kg -
Valve Body 3Product Name: DJ25 valve body & DJ40 valve body DJ50 valve bodyread more
Texture of material: CF8
Weight: 0.9kg/ 1.9kg/ 3.1kg -
Three Way Valve BodyProduct Name: DN50 three-way valve bodyread more
Texture of material: 304
Weight: 0.8kg -
Flanged Corneal ValveProduct Name: SED20 has a flanged corneal valve/SED40 has a flanged corneal valveread more
Texture of material: 304
Weight: 5.8kg -
Shell SeriesProduct Name: Shell seriesread more
Texture of material: 304
Weight: 0.5-1.5kg Don't wait
Benefits of Investment Casting
The investment casting process offers several benefits:
Precision and detail:
Investment casting produces parts with excellent dimensional accuracy, suitable for complex geometries.
Material flexibility:
A wide range of metals and alloys can be used.
Smooth surface finish:
The process results in fine surface finishes, reducing post-processing needs.
Cost-effective for complex shapes:
Complex designs are more cost-effective compared to machining.
Applications of Investment Casting
1.Energy: The energy sector has a very specific use for this manufacturing technique. Wind turbine blades are huge, weigh tons, and require superior strength and surface finish. This combination of qualities is an advantage of this method.
2.Marine: Investment casting of metal parts is common in the marine industry. Strong, corrosion-resistant metallic panels for ships and submarines are manufactured with special alloys. Since this method is compatible with numerous metal alloys, it is well suitable for this application.
3.Aerospace: This technique can manufacture crucial parts in aircraft engines and bodies owing to the requirements of complex geometries and strength.
4.Medical: The ability to cast small parts with a superior surface finish puts this method at an advantage in the medical industry. Prosthetics, implants, and surgical equipment are some standard applications.
5.Automotive: In the automotive industry, high-performance parts like drive train components, rocker arms, and power train elements are made.

Investment Casting Materials
Stainless steel
Stainless steels feature superior durability in comparison with many other materials. The potential of the material has led to increased use in investment casting by designers and engineers. Applications for stainless steel include gearbox parts in automotive applications, various gears, camp components, and golf club heads.
Low alloy steel
Low alloy steels are among the most frequently used steels in the mechanical world due to their affordability and beneficial mechanical properties. Specialized heat-treating processes make it possible to engineer parts that have differing properties in different areas of the same workpiece.
Aluminum alloy
Aluminum alloy is the most used material in investment casting. Industries that use it most frequently include aerospace, avionics, electronics, and military.
Carbon steel
Carbon steel is a common low-cost material that comes in a variety of grades, with the classifications varying based on the amount of carbon content. The strength, ductility, and performance of carbon steel can be improved in industrial applications through heat treatment. Its ferromagnetic properties make carbon steel useful in motors and electrical appliances.
Super alloy
Super alloys based in nickel and cobalt have common uses in the aerospace, energy, medical, chemical, and marine industries. Nickel-based alloys are stronger at high temperatures and cobalt-based alloys have superior corrosion, oxidation, and wear resistance over their nickel-based counterparts.
Copper alloy
Copper-based alloys are corrosion-resistant and feature low rates of wear. They are frequently used in applications such as ship or pump propellers, electrical components, and plumbing components. A versatile material, there are more than 400 different alloys featuring a wide variety of properties.
Cast iron
Iron castings, which often include gray iron and ductile iron, are known for their high accuracy and an affordable price tag. Ductile iron has high strength, heat-resistance, and toughness, but it has a more complex production process than other steels. This leads to a higher production cost than cast steel.
Surface Finishing Options of Investment Castings
The selection of a suitable surface finish technique depends on factors such as dimensional tolerance, desired appearance, and mechanical properties. The following are some of the surface finish operations that can be chosen:
Anodizing
Anodizing is a surface treatment method primarily used for investment castings made of aluminum. It creates a protective oxide layer on the surface, enhancing corrosion resistance and offering a range of color options.
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Polishing
Polishing is a process that involves removing imperfections and achieving a smooth, reflective surface on investment castings. It improves the appearance and aesthetic appeal of the parts.
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Painting
Painting is a surface finishing technique where a layer of paint or coating material is applied to the investment castings. It allows for customization in terms of color, texture, and protection against environmental elements.
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Powder coating
Powder coating provides a durable and visually appealing finish. It involves applying a dry powder to the surface of the castings, followed by curing under heat. Powder coating offers a wide range of colors, textures, and finishes.
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Passivation
Passivation is a chemical process that helps remove surface contaminants and enhances the corrosion resistance of investment castings, particularly for stainless steel and other corrosion-prone materials.
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Certificate




FAQ
We're well-known as one of the leading investment casting/precision castings manufacturers in China. If you're going to buy discount investment casting/precision castings, welcome to get quotation from our factory. Also, customized service is available.
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