Alloy Steel Impeller Castings
- Multiple impeller types: Enclosed, semi-open front, semi-open back, and open impellers to match different pumps, mixers, and process conditions.
- Wide material range: Stainless steel, alloy steel, duplex steel, copper, and other specialty grades for corrosion, temperature, or strength requirements.
- Complex geometry capability: Precision casting allows intricate blades and hubs with smooth flow passages and accurate hydraulic profiles.
- Stable supply & lead time: 100–150 tons per month production capacity with typical 45-day delivery for regular orders.
Technical Specifications
| Item | Details |
| Product Name | Alloy Steel Impeller Castings |
| Available Impeller Types | Enclosed, open, semi-open front, semi-open back |
| Main Materials | Alloy steel |
| Typical Steel Grades | 12Cr1MoV, 25Cr2MoVA, 38CrMoAl, 35SiMn, 40Cr, 25CrMo, 30CrMo (4130), 35CrMo, 42CrMo (4140), 50CrMo |
| Casting Processes | Precision investment casting and sand casting (selected to suit size and complexity) |
| Dimensional Capability | Complex 3D blade geometry according to customer drawings and performance requirements |
| Balancing & Accuracy | Dynamically balanced as needed for high-speed pump and compressor applications |
| Material Standards | GB, ASTM, AISI, DIN, BS, JIS (according to client specification) |
| Supply Capacity | 100–150 tons per month |
| Delivery Time | Around 45 days |
Applications
- Clean and slurry water pumps
- Chemical, petrochemical, and process pumps
- Marine and offshore pumping systems
- Food machinery and sanitary fluid equipment
- Mining and mineral processing equipment
- Wind energy cooling and lubrication systems
- General fluid industry, HVAC, and circulation pumps
- Metallurgy, steel plant, and industrial furnace auxiliaries
- Mechanical, hardware, electronic, and lighting equipment requiring precision rotating components
Production Process
Our precision casting production process integrates wax modeling, automated shell making, controlled pouring, heat treatment, and machining to ensure dimensional accuracy, integrity, and quality.

Wax Injection

Shell Making

Shell Baking

Pouring

Shot Blasting

Heat Treatment

Machining

Inspection
Advanced Workshop
Advanced workshops include wax model production, CNC robotic shell making, semi-automatic pouring, baking furnaces, and machining centers supporting automation, efficiency, flexibility, and operations.

Medium Temperature Wax Workshop

Low Temperature Wax Workshop

9-axles CNC Shell-making Robot Arm Workshop

Semi-auto Pouring Machine

Baking Furnace

Horizontal CNC Machining Center
New Shell Making Automation Line
New shell making automation line optimizes reduction processes, improves production efficiency, ensures reliable equipment operation, extends running time, and significantly reduces labor intensity overall.

Shell Making Automation Line No. 01 – Small & Medium Parts
Automated shell making line for small and medium castings improves shell uniformity, reduces manual intervention, and enhances production stability and efficiency.

Shell Making Automation Line No. 02 – Large Parts
Specialized automation line supports large investment castings, handling complex geometries and higher weights while maintaining shell strength and process reliability.

Shell Making Automation Line No. 03 – Investment Casting
Optimized shell making system streamlines reduction processes, improves efficiency, ensures long-term equipment reliability, and significantly reduces labor intensity.
Quality Inspection
Comprehensive quality inspection system covering materials, processes, dimensions, and final products to ensure traceability, consistency, and full compliance with customer specifications.

Zeiss CMM Machine

X-ray Flaw Detector

100T Horizontal Tensile Testing Machine

Rockwell Hardness Standard Machine
Logistics & Delivery
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.
