Carbon Steel Investment Castings
- Wide material range: Q235, Q345, 20#, 45#, 16Mn, 60Mn, A105 and other grades to match performance needs.
- Complex geometries possible: near-net shapes with fine detail, internal cavities, and thin walls.
- Excellent surface finish: casting roughness as fine as Ra1.6–3.2, reducing polishing requirements.
- Tight dimensional control: dimension tolerance up to CT5–CT6; minimum wall thickness about 0.5 mm.
- Reduced machining cost: accurate investment castings need little secondary machining.
Technical Specifications
| Item | Details |
| Product Name | Carbon Steel Investment Castings |
| Main Process | Investment casting (optional sand casting for larger parts) |
| Material Standards | EN, BS, AISI, ASTM, JIS, GB |
| Typical Carbon Steel Grades | Q235, Q345, 20#, 25#, 30#, 35#, 45#, 55#, 16Mn, 50Mn, 60Mn, A105, ZG200-400, ZG230-450, etc. |
| Max Overall Dimensions | Up to approx. 1500 × 1500 × 1500 mm |
| Weight Range – Investment | 1 g – 99 kg |
| Weight Range – Sand Casting | From 0.5 kg |
| Minimum Wall Thickness | Approx. 0.5 mm |
| Dimension Tolerance | CT5–CT6 degree |
| Casting Surface Roughness | Ra1.6–3.2 (typical); general range Ra3.2–6.4 |
| Machined Surface Roughness | Ra 0.8–1.6 |
| Supply Capacity | 100–150 tons/month |
| Delivery Time | About 45 days |
Applications
- Sewing machine parts and textile machinery components
- Printing machinery and precision hardware parts
- General industrial and engineering hardware
- Mining and metallurgical equipment components
- Fluid control, pump, and valve parts
- Marine fittings and ship accessories
- Garden tools and outdoor equipment
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.