Senpu Stainless Steel

Factory Gallery

Production Equipment

Production Capacity

Manufacturing Process Showcase

Precision investment casting

From wax pattern production to final inspection, every stage is built around dimensional stability, surface quality, and repeatable batch output.

Wax injection equipment and wax production area 1
01

Wax Injection

Wax Production

Wax injection, wax repair, and tree assembly create stable patterns that define the product profile before shell making and casting.

Five wax injectors support orders across different specifications
Wax burr removal reduces deformation and surface risks
Wax tree assembly balances filling efficiency and batch consistency
Shell production workshop 1
02

Ceramic Shelling

Shell Production

Wax trees are dipped, sanded, and dried into ceramic shells with the strength and surface detail needed for stable casting.

Multi-layer shelling improves mold strength
Drying control keeps the shell structure stable
Shell surface detail directly affects casting appearance
Roasting and casting operation 1
03

Pouring and Analysis

Roasting & Casting

After shell roasting, molten metal is poured and material composition is checked to keep the alloy condition controlled.

Roasting removes wax and preheats the shell
Pouring control focuses on temperature and complete filling
Composition analysis verifies material requirements
Grinding and treatment workstation 1
04

Grinding and Straightening

Treatment

After shell removal, parts are cut, ground, and straightened to improve appearance and stabilize key dimensions.

Grinding improves surface condition
Straightening supports dimensional stability
Part-by-part treatment reduces downstream machining variation
CNC machining equipment 1
05

Machining Center and CNC

Machining

Machining centers and CNC lathes finish critical dimensions, holes, and assembly surfaces with controlled precision.

Machining centers support complex structural parts
CNC turning controls rotational dimensions
Fixtures improve consistency across production batches
Final inspection workshop 1
06

Dimension and Appearance

Final Inspection

Before shipment, finished parts are checked for dimensions, appearance, and key quality items to ensure reliable delivery.

Dimensional checks confirm critical tolerances
Appearance inspection screens surface defects
Final records support quality traceability