Hansheng Automation (Dongguan) Co., Ltd.

Hansheng Automation offers diversified metal casting services (covering processes such as sand casting, investment casting, lost foam casting, and die casting), supporting customized casting processing (suited for fields like tobacco packaging equipment, aerospace, and automotive components). Casting materials include cast iron, cast steel, copper alloys, aluminum alloys, and more. Its core advantage is the ability to form complex geometric structures in a single piece.
Its casting precision reaches CT4-12 grades (die casting up to CT4 grade), with special tolerances achievable up to ±0.02mm. Quality is ensured through a triple quality control system (spectral analysis, X-ray inspection, three-coordinate measurement), and it further enhances precision by integrating CNC precision machining. The company provides "zero-defect" services from design to delivery for clients in over 60 countries worldwide.

Core Service Capabilities

Customized Adaptation: Can customize casting processes, materials, and post-processing solutions based on customer drawings (2D/3D) or samples.
High-Precision Integration: Follows casting with CNC precision machining, improving precision from CT grades to ±0.02mm to meet the needs of precision components.
Rapid Response: Offers a rapid prototyping channel (3D printed sand molds) and prioritizes urgent orders to shorten development cycles.
Full-Process Service: Covers "design consultation - casting production - CNC machining - after-sales support," providing a one-stop solution.

Main Casting Processes
Sand Casting: Suitable for heavy components with lower precision requirements, such as large machine tool bases and municipal manhole covers.
Investment Casting: Suitable for high-precision complex components like aerospace turbine blades and precision gears.
Lost Foam Casting: Suitable for components with complex internal cavities, such as hydraulic valve blocks, and parts with irregular structures.
Die Casting: Suitable for high-precision thin-walled parts like automotive engine blocks and thin-walled housings for 3C products.

Our Casting Service Full Process

CAD Modeling: Use software to build a 3D model, simulating metal flow and solidification shrinkage processes.
Mold Making: Select mold material based on order volume – wood/foam patterns for small batches, metal molds for large batches, and 3D printed sand molds for rapid prototyping.
Wax Injection: Use a high-pressure wax injection machine to inject low-temperature wax/resin into the mold, forming a wax pattern identical to the casting.
Shell Preparation: Alternately apply refractory materials like zircon sand and corundum sand using a silica sol/water glass binder to form a high-temperature resistant ceramic shell.
Shell Firing: Sinter the shell at high temperatures of 900-1100°C to enhance strength and remove residual moisture and wax material.
Metal Pouring: Melt metal using an electric furnace/medium frequency furnace, and inject it into the shell using vacuum casting (for high-precision parts) or gravity casting (for standard parts).
Spectral Analysis: Use a direct-reading spectrometer to test the composition of the molten metal (e.g., C, Si, Mn content), ensuring compliance with material standards.
CNC Precision Machining: Perform micron-level machining on critical areas of the casting (e.g., sealing surfaces, threaded holes), improving precision to ±0.02mm.
Quality Inspection: Verify product conformity through three-coordinate measurement (dimensional tolerances), X-ray inspection (internal cracks), and pressure testing (sealing performance).

Optional Materials

Cast Iron: Compressive strength 300-1000MPa, wear-resistant, impact-resistant, but high brittleness.
Cast Steel: Tensile strength 400-1200MPa, good toughness, suitable for heavy loads.
Copper Alloys: Excellent thermal conductivity, corrosion-resistant.
Aluminum Alloys: Density only 1/3 that of steel, ideal for lightweighting.