EDM and Wire EDM Services

At SelenPreci, our sinker EDM and wire EDM equipment deliver high-precision machining for intricate custom parts made from hard conductive materials.

As a one-stop CNC manufacturer based in Shenzhen, we handle ultra-complex geometries that traditional CNC milling or turning struggles to produce, for prototypes, small batches and mass production.

Sinker EDM (EDM)

Sinker EDM, also known as cavity EDM, uses controlled electrical sparks to erode workpieces. It excels in creating deep cavities, sharp internal corners, thin walls and fine grooves on hard conductive materials. It is widely used for mold inserts and complex 3D precision parts where conventional cutting tools cannot reach.

Wire EDM (WEDM)

Wire EDM uses a thin travelling metal wire to cut workpieces via electrical discharge. It efficiently fabricates narrow slits, elongated holes, external contours and intricate 2D profiles. This process is ideal for thin, hardened workpieces requiring tight dimensional tolerance and clean cutting edges.

Zero Mechanical Stress on Workpieces

No physical cutting force touches the part during spark erosion. It eliminates deformation and warping risks, making it ideal for ultra-thin wall and delicate fragile components.

Controlled Minimal Heat-Affected Zone

We precisely control discharge energy to limit the heat-affected zone. It prevents thermal damage and preserves material performance for heat-sensitive precision parts.

Wide Flexibility for Prototyping & Batch Orders

Our EDM solutions adapt to simple and highly complex custom parts. Flexible for prototype validation, small batch trial runs and volume production to match your project timeline.