It allows for the production of intricate shapes and complex geom...
Investment Casting Parts is a high-precision, high-quality metal parts manufacturing process that has many advantages and is widely used in various fields.
First, invest in cast parts with high precision and complexity. Through this process, parts with complex shapes, small structures and precise dimensions can be manufactured to meet various engineering requirements. Secondly, investment in cast parts has a smooth surface and requires no additional processing or surface treatment, saving processing costs and time. In addition, investment casting can use a variety of metals and alloy materials, such as stainless steel, aluminum, copper, etc., which is highly adaptable and can meet the needs of different engineering applications. Compared with other casting processes, investment casting can save raw materials, energy and labor, reduce manufacturing costs, and is especially suitable for the production of small batches and complex parts.
The applications of investment casting parts are also very wide, covering various industries such as aerospace, automobiles, medical equipment, and energy. In the aerospace sector, investment cast parts are used to manufacture engine parts, turbine blades and aerospace structural components. In the automotive industry, they are used to manufacture engine parts, driveline components and chassis parts. In the field of medical devices, investment casting parts are used to manufacture artificial joints, orthopedic implants, and medical device casings. In the energy industry, investment in cast parts is used to manufacture turbomachinery, pump valves and gas turbine components.
Ningbo Hansheng Machinery Parts Co., Ltd. (Ningbo Yifei Machinery Parts Co., Ltd.) is a manufacturer specialized in customized die casting, investment casting, sand casting and forging service. Our factory locates in Ningbo City, Zhejiang Province. Yifei was founded in 2003, with a floor area of 5,000 square meters. We have established quality assurance system conforming to ISO9001：2000 standard.
As China Investment Casting Parts Manufacturers and Investment Casting Parts Suppliers, most of our products are exported to the United States, the United Kingdom, Spain, Germany, France and some other European countries. We mainly serve the following industries: construction hardware, automobiles and off-road vehicles, engineering machinery, construction tools, electrical control, mechanical packaging equipment, medical equipment, precision optical equipment, printing equipment, security control systems, sports equipment, textile machinery, compressors, conveying systems, cranes, flow meters, marine hardware, pump impellers, valves, transportation equipment, etc.
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Ningbo Hansheng Machinery Parts Co., Ltd. is a specialized manufacturer of Investment Casting Parts — also known as lost wax or precision castings. We supply custom components in carbon steel, alloy steel, stainless steel, ductile iron, gray iron, high-chromium iron, and high-manganese steel. Our parts serve automotive drivelines, construction machinery, pump and valve assemblies, agricultural equipment, railway systems, and general industrial machinery. With a 5,000 m² factory in Ningbo, China, and an ISO 9001:2000 quality system, we deliver castings that meet dimensional, mechanical, and surface finish requirements for demanding B2B projects.
We produce investment castings from a few grams to several kilograms, with wall thicknesses as low as 0.2 mm. The table below summarises the typical material grades, achievable tolerances, and surface finishes we supply.
| Material Group | Common Grades | Dimensional Tolerance | Surface Finish (Ra) | Typical Applications |
|---|---|---|---|---|
| Carbon Steel | A36, 1045 | ±0.05 mm | Ra 3.2–6.3 μm | Brackets, housings, machine frames |
| Alloy Steel | 42CrMo, 16Mn | ±0.05 mm | Ra 3.2–6.3 μm | Gears, shafts, high-load connectors |
| Stainless Steel | 304, 316, 17-4PH | ±0.05 mm | Ra 3.2–6.3 μm | Valve bodies, pump impellers, food-grade parts |
| Ductile / Gray Iron | QT400, HT250 | ±0.10 mm | Ra 6.3 μm | Brake components, hydraulic manifolds |
| High-Chromium / High-Mn Steel | Cr26, Mn13 | ±0.10 mm | Ra 6.3 μm | Wear plates, crusher liners, bucket teeth |
Investment casting uses a wax pattern coated with refractory ceramic to form a precise mold. After the wax is removed, molten metal is poured into the cavity. This method allows us to produce complex geometries — internal passages, undercuts, thin walls — that would be difficult or expensive to machine. Typical parts we supply include:
We control the process from wax injection through finishing. Key quality checks include:
Our quality system is certified to ISO 9001:2000, and all castings are traceable to raw material lots. We also offer post-cast machining, heat treatment, and surface finishing (sandblasting, polishing, plating, powder coating) as integrated services.
Every project begins with your drawing or sample. We accept 2D (PDF, DWG, DXF) and 3D (IGS, STP, X_T, SLDPRT, STEP) formats. Our engineers review the design for castability, suggest modifications if needed, and prepare tooling accordingly. We support:
Our castings are designed to interface directly with automated assembly lines, robotic welding cells, and press-fit stations. We can supply parts with datum features, machined locating surfaces, and consistent dimensional envelopes to support automated handling. For installation, we provide assembly drawings and, if required, on-site technical support through our engineering team.
Investment cast parts offer consistent material properties and predictable wear patterns, simplifying maintenance planning. We maintain records of material certifications and dimensional reports for each production lot. Spare parts can be reordered based on the original drawing number; typical lead time for repeat orders is 3–4 weeks after tooling availability.
To prepare a proposal and quotation, we need:
Tooling fabrication usually takes 3–5 weeks depending on complexity. Once tooling is approved, production lead time is 3–4 weeks for standard quantities.
Yes. Internal threads and undercuts can be cast-in using soluble wax cores or machined after casting. We evaluate each geometry during the design review.
We accept both low-volume prototypes (50–200 pieces) and high-volume production runs (thousands per month). Tooling cost is amortised over the order quantity.
Yes. We supply mill test certificates, dimensional inspection reports, and NDT results as part of the standard documentation package.
We control wax injection parameters, shell building, and pouring conditions. First-article inspection is performed on each new batch, and statistical process control is applied for critical dimensions.
Our portfolio also includes NEXT: Lost Wax Casting Connector, NEXT: Investment Casting Equipment Parts, Custom Investment Casting Steel Connector Factory for applications with different operating ranges, interfaces or integration requirements.
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