What Is EDM Machine?

EDM (Electrical‑Discharge Machine, also known as spark erosion machine) removes metal material by high‑temperature electric sparks. It is widely‑used precision‑machining equipment for molds, hardware, auto‑parts and metal components which are hard‑to‑cut with ordinary CNC machines.

Below are the four main categories of EDM machines for your reference:

1. Die‑Sinker EDM (Ram EDM / Spark‑Forming Machine)

This is the most‑popular mold‑making model. It uses copper or graphite electrodes to sink into workpiece and carve blind 3‑D cavities.

● Best use: plastic injection molds, die‑casting molds, deep‑recess shapes, textured surfaces

● Two versions available: economical ZNC single‑axis EDM & high‑precision CNC mirror EDMAlibaba Se…

2. Wire-Cut EDM Machine

A thin brass wire acts as electrode to cut through metal. It is split into high‑speed wire‑cut and low‑speed wire‑cut models according to precision requirements.

● Best use: 2‑D through‑cut profiles, stamping dies, complex outer contours

Note: Wire-cut EDM is not supplied by our company. Please refer to our Die-Sinker EDM, Small-Hole Drilling EDM and Portable Broken-Tap Remover EDM.

3. Small‑Hole Drilling EDM (Puncher / Hole‑Sinker EDM)

Specialized equipment for drilling tiny deep holes on hard metal. It is also commonly used to drill start‑holes for wire‑cut work.

● Best use: micro‑holes, removing broken taps & broken drills from workpieces

4. Portable Broken‑Tap Remover EDM

Compact, lightweight machine, mainly for on‑site removal of broken taps, bolts and drills without damaging your workpiece.

Why Buy EDM Machines From Us?

We are a professional self‑manufactured factory with more than 20‑years of experience in machinery manufacturing and foreign‑trade business.

✅ Main configurations and core spare‑parts are self‑produced, stable quality & competitive factory‑direct price

✅ Full EDM product range: sinker spark machines, wire‑cut machines, hole‑drilling perforators and broken‑tap removers

✅ Custom‑built service available: we can recommend the most‑suitable machine model based on your processing material, workpiece size and production goal

✅ Complete after‑sales support, technical documents and operation guidance are provided.

Looking for a Right‑Fit EDM Machine?

If you are not sure which type of spark machine matches your workshop project, please feel free to contact us. Send us information about your grinding workpieces and processing materials. We will offer you a free, tailored quotation and technical‑specification sheet right away.

We welcome buyers for factory‑own‑use or resale agents worldwide.

Waiting for your inquiry!

Contact Details

Company Name: Beijing Yuhen Machinery Co., Ltd.

Address: 1809, 15th Floor, Building 1, No. B12 Zhongguancun South Street, Haidian District, Beijing

Contact Person: Ivy  

WhatsApp: +86-189-2559-3414

Tel / WeChat: +86-189-2559-7030

Email: Sales5@yuhenmachine.com