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Home / Machine tools and equipment / Metalworking machine tools / Electrical discharge machines (EDM)

Electrical discharge machines (EDM)

EDM machines include wire-cut (WEDM), sinker, and copy EDM models with CNC for non-contact machining of conductive materials. They are used in mold & die making, aerospace, medical device manufacturing, and precision engineering to produce complex shapes from hardened steel, titanium, and exotic alloys.

Subcategories

Wire-cut electrical discharge (WEDM) machines
Wire-cut electrical discharge (WEDM) machines
Die-sink EDM machine
Die-sink EDM machine
CNC-EB EDM
CNC-EB EDM
Total: 60 products
CNC EDM machine H4030
HCM C

CNC EDM machine H4030

Die-sink EDM Machine design Movable table
Working table size 650mm x 400mm
X/Y-Axis travel 400mm / 300mm
Z-Axis travel 185mm
EDM system CNC
Price on Request
More Details
CNC Die-sink EDM machine AL40G
Sodick AL

CNC Die-sink EDM machine AL40G

Working table size 600mm x 400mm
X/Y-Axis travel 400mm / 300mm
Max. weight of workpiece 550kg
Price on Request
More Details
Wire cut EDM S400
WNJ S

Wire cut EDM S400

Max. weight of workpiece 300kg
X/Y-Axis travel 400mm / 320mm
Z-Axis travel 280mm
U-Axle travel 30mm
V-Axle travel 30mm
Price on Request
More Details
Wire cut EDM S1080
WNJ S

Wire cut EDM S1080

Max. weight of workpiece 1200kg
X/Y-Axis travel 1000mm / 800mm
Z-Axis travel 400mm
U-Axle travel 30mm
V-Axle travel 30mm
Price on Request
More Details
Wire cut EDM S800
WNJ S

Wire cut EDM S800

Max. weight of workpiece 800kg
X/Y-Axis travel 800mm / 630mm
Z-Axis travel 400mm
U-Axle travel 30mm
V-Axle travel 30mm
Price on Request
More Details
Wire cut EDM S630
WNJ S

Wire cut EDM S630

Max. weight of workpiece 600kg
X/Y-Axis travel 630mm / 500mm
Z-Axis travel 350mm
U-Axle travel 30mm
V-Axle travel 30mm
Price on Request
More Details
CNC Die-sink EDM machine CNC-B45
Triple Tech CNC

CNC Die-sink EDM machine CNC-B45

Working table size 700mm x 400mm
X/Y-Axis travel 450mm / 350mm
Ram vertical travel 300mm
Max. weight of workpiece 450kg
Price on Request
More Details
Wire cut EDM DK7740
JZ DK

Wire cut EDM DK7740

Working table size 450mm x 640mm
Max. weight of workpiece 450kg
X/Y-Axis travel 400mm / 630mm
Z-Axis travel 400mm
Price on Request
More Details
CNC-EB EDM CNC-EB433
JSedm EB

CNC-EB EDM CNC-EB433

Working table size 600mm x 350mm
X/Y-Axis travel 400mm / 300mm
Z-Axis travel 300mm
Max. weight of workpiece 500kg
Operating current 60A
Price on Request
More Details
Wire cut EDM A640
WNJ A

Wire cut EDM A640

Max. weight of workpiece 400kg
X/Y-Axis travel 600mm / 400mm
Z-Axis travel 300mm
Price on Request
More Details
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EDM (electrical discharge machining, also known as spark eroding or wire erosion) is a machining process that uses the electrical discharges to alter the shape of a workpiece - an electrical current passes between an electrode and a workpiece which are separated by a dielectric liquid and as a result spark erodes the workpiece to form a desired final shape. 

Types of EDM machines:

  • Wire-cut EDM (WEDM);
  • Die-sink EDM (Ram-type EDM);
  • Hole drilling  EDM;

Combined with computer numeric controls (CNC), EDM machines become an accurate and reliable machining method that is now standard among more conventional cutting methods. It is particularly popular for small-volume productions such as prototypes. Various processes are possible with electrical discharge machining, including turning, milling, grinding and small hole drilling. Besides die and mould-making, EDM is typically applied in the automotive and aerospace industry, for example, in the production of aircraft engines. 

Advantages:

  • Machining the hight hardness workpieces made from titanium or tungsten carbide;
  • Machining the shapes and depths what are impossible to process with a cutting tool;
  • Excellent surface finish;
  • High precision machining method

However, EDM machining is the rather slow method compared to traditional machining, therefore high-volume tasks are not suited for this method. At the same time, the spark eroding process requires high power consumption. If need to rough cut a lot of parts quickly, electrical discharge machining probably isn’t the right processing machine. 

Reliable and durability EDM machines from Asia by Knavi Group LLC.

Knavi Group LLC offers a large variety of reliable EDM machines for any task by the largest manufacturers from China, Taiwan (R.O.C), Korea and Japan. A wide range of high quality machine tools with a long warranty and lowest prices. Assistance in the selection of a needed machine and equipment, installation supervision and commissioning, training, warranty and post-warranty maintenance, door-delivery to any region of the country, supply of spare parts and tools.