Sinker EDM Machining Shops — Die Sinking & Cavity EDM
Sinker EDM (die-sinking or ram EDM) uses a shaped electrode to erode a cavity into a conductive workpiece using electrical discharges, producing complex blind cavities, mold pockets, and recessed features that cannot be reached with rotating tools. It is essential for injection mold cavities, die casting tools, and intricate internal profiles.
Best For
- Injection mold cavities and cores
- Die casting tooling
- Blind pockets and internal contours
- Complex shapes in hardened tool steels
Key Specs
- No cutting forces — machines fully hardened materials
- Surface finish: 8–64 Ra μin (fine to rough)
- Electrode materials: graphite, copper, copper-tungsten
- Accuracy: ±0.0005″ (±0.013 mm) typical
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Bossier City, Louisiana5.0(12)
Contact RDL Machine for ISO 9001 certified CNC machining and metal fabrication services including 3, 4 and 5 axis machining, CNC turning, EDM Sinker and more.
Frequently Asked Questions
What is Edm Sinker?
Edm Sinker is a specialized manufacturing capability. Use our directory to find verified cnc machining shops offering edm sinker and request quotes directly.
How many suppliers offer Edm Sinker?
Our directory lists 1 verified suppliers with Edm Sinker capability. Filter by state or certifications to find the best match.