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High-Quality Stainless Steel Precision Castings from China Suppliers | Durable Factory-Made Industrial Parts
Common markets for Precision Castings of Stainless Steel include defense, oil and gas, medical and many more. Stainless Steel Precision Casts are included in our main business. The application of Stainless Steel Precision Casts is very broad, covering the whole machinery manufacturing and mechanical processing industry — mainly including mining, engineering machinery, oil, ships, automobile and other industries. Precision Casts of Stainless Steel can meet domestic and foreign market demand.
🏭 Company Overview
Wei Fang Jun Long Precision Casting Co., Ltd. specializes in precision castings across a wide range of materials, including carbon steel, low carbon steel, medium carbon steel, high carbon steel, alloy steel, high manganese steel, high chromium steel, and high nickel steel.
Our parts are widely used in auto parts, forklift parts, ship parts, train parts, mechanical engineering, petroleum machinery, and mining machinery. Our products have been exported to more than 20 countries and regions worldwide, and we have earned the unanimous praise of our customers through a business philosophy of integrity, pragmatism, professionalism, and innovation.
📐
30,000 m²
Factory Area
👷
200+
Employees
🔬
10
R&D Personnel
✅
12
QC Personnel
🌍
20+
Export Countries
⚖️
8,000 T
Annual Output
🏅 The enterprise has passed ISO 9001:2005 Quality Management System Certification, and has been approved by the National Environmental Protection Department with a formal environmental assessment certificate — recognized as a green casting enterprise.
⚙️ Production Lines & Process
The company operates three production lines: two using the composite process (silica sol + water glass) and one using the pure silica sol process. All workshops have been fully automated since the end of 2015.
🤖 Automatic Wax Injection
Ensures consistent wax patterns for precise casting forms.
🦾 Silica Sol Process Robot
Automated shell-building robot for superior surface finish.
💨 Wind Assembly Line
Automatic silica sol process wind main line for shell drying.
🔩 Water Glass Assembly Line
Automated water glass process line with integrated curing pool.
🔥 Automatic Pouring
Fully automated molten metal pouring for uniform quality control.
🎯 Product Capabilities
- ✔️ Precision casting products with weight from 0.1 KG to 500 KG
- ✔️ Products with wall thickness as low as 3 mm
- ✔️ Capable of producing parts with complex shapes
- ✔️ Effectively avoids porosity, sand holes, slag inclusion, cold insulation, and shrinkage defects
- ✔️ Composite process delivers near-silica-sol surface finish at a significantly lower cost
- ✔️ Most suitable for large-batch production with guaranteed quality and reasonable profit margin
💡 Our composite process (silica sol + water glass) uses low-temperature wax, with four shell layers in silica sol and three layers in water glass. The result is a product with surface finish and internal quality nearly equivalent to a full silica sol process — but at a much lower price. Our foreign customers have been cooperating with us for over 8 years with excellent results.
🔍 Inspection & Testing
Our company operates a dedicated physical and chemical laboratory equipped with comprehensive inspection instruments to satisfy different product requirements and issue corresponding test reports.
Spectrometer
3-Coordinate Measuring Machine
Metallographic Analyzer
Impact Test Machine
Tensile Testing Machine
Hardness Tester
Magnetic Particle Inspection
Ultrasonic Testing
🛠️ Machining Equipment
We provide comprehensive in-house machining services with the following equipment:
Horizontal Machining Center
CNC Machining Center
Bench Drill
Vertical Drilling Machine
Rocker Arm Drilling Machine
Milling Machine
Grinder
Planer
CNC Lathes
❓ Frequently Asked Questions
Q What materials are available for your stainless steel precision castings?
We offer precision castings in a wide range of materials, including carbon steel, low carbon steel, medium carbon steel, high carbon steel, alloy steel, high manganese steel, high chromium steel, and high nickel steel, among others.
Q What casting processes do you use?
We operate three production lines: two composite process lines (silica sol + water glass) and one pure silica sol process line. The composite process delivers surface finish and internal quality nearly equivalent to full silica sol, at a significantly lower cost — making it ideal for large-batch orders.
Q What is the weight and size range of castings you can produce?
We can produce precision casting products ranging from 0.1 KG to 500 KG in weight, with wall thickness as low as 3 mm, and are capable of handling complex-shaped parts.
Q What quality certifications does your company hold?
Our company has passed the ISO 9001:2005 Quality Management System Certification and has been approved by the National Environmental Protection Department with a formal environmental assessment certificate, recognizing us as a green casting enterprise.
Q Can you provide inspection reports and machining services?
Yes. Our dedicated physical and chemical laboratory is equipped with advanced testing instruments including a spectrometer, 3-coordinate measuring machine, metallographic analyzer, tensile testing machine, and ultrasonic testing equipment. We can issue corresponding test reports for all products. We also offer full in-house CNC and conventional machining services.
Q Which industries and markets do you serve?
Our precision castings serve a broad range of industries including defense, oil and gas, medical, mining, engineering machinery, automotive, shipping, forklift, and railway sectors. Our products have been exported to more than 20 countries and regions worldwide.
