ZNC Sinking EDM


Product in details

Jingzhou Mind Science and Technology Co.,Ltd.

Main Application

EDM sinker machine is used for cavity forming. It utilizes conductive material (copper, graphite, steel) as electrode to process workpiece (conductive material) by spark erosion. Main use: processing precious die, cavity mold and so on. It is widely used in metal processing and mold making workshop.

Jingzhou Mind Science and Technology Co.,Ltd. 

Our company's EDM series machines are featured in strong functions, convenient and reliable operation, of fairly good rigidity, running placidly, of good controllability, suitable to process conductive metal moulds, complicated metal parts and templates with high precision, high toughness and difficult processing. EDM process has become the important part in the field of mechanical manufacture. They are widely used in the fields of moulds, electronic instruments, precision mechanical process, automobile parts, military, etc.


1. Adopt Japan SANYO AC servo motor.

2. Steady safety device, optical sensors, auto answer, fire extinguisher and power cut off.

3. Good machine structure, high rigidity, high precision, V slide design.

4. Adopt HT300 ageing treatment casting, keep precision long time.

5. Adopt high quality imported oil pump.

6. Three-axis linear scale.

7. Can choose red oil, pumping oil slagging mode, but also choose not to dip the oil processing.

8. For copper, graphite, steel, on the cavity, and special shape holes machining.

9.  Lubrication system uses recovery mode, rail lubrication action at once, and keep the look clean.

10.  Moisture-proof, Antirust, rust, gold plated K PCB board design.


Jingzhou Mind Science and Technology Co.,Ltd. Jingzhou Mind Science and Technology Co.,Ltd.

ZNC System Technical Performance

Jingzhou Mind Science and Technology Co.,Ltd.1. There is an automatic A.R.C (carbon deposit sensitivity device) to prevent damaging workpiece.

2. VLSI, high power VMOS to provide power.

3. High and low clearance individual circuit.

4. PWM (impulse width) servo system, standard DC servo motor.

5. Synchronous discharge system of high voltage super posited.

6. Square wave and equal energy output.

7. Circuits of super-fine process.

8. Capacity of voltage regulation is ±20%.

9. Circuits of copper electrode and graphite electrode are separate and individual process parameters.

10. Discharge parameters can be edited automatically, and there are rough, medium, fine, superfine process terms to be chosen.

11. Z axis is of super-precision process, process position can be affirmed repeatedly.

12. There are some safe devices in circuit. 

·  Self-diagnostic system and LED state display, convenient to examine and repair

·  Oil level control, process device will be stopped automatically

·  If temperature of working fluid is too high according to induction, the process will be cut off automatically

·  Temperature induction, fire extinguisher sprays automatically and cut off the power supply at the same time

·  Light sensitive device, self-response, and fire extinguisher cut off the power supply at the same time

·  Automatic fire extinguisher, which is featured in best security, without pollution, there is no damaged to machine and mould. 

ZNC Configuration of ZNC System

A. P2 CPU industrial control computer

B. EDM software system control.

C. 15 inches LCD.

ZNC System Running Environment

A. Temperature: 5-40 ºC

B.  Moisture: 40%-80%

Parameters and Specification

Parameters / Specification Unit EDM650ZNC
Working table travel X×Y mm 650x550
Working table size L×W mm 1100x650
Principal axis travel mm 300+(300)
Principal axis load Kg 250
Machine load Kg 2800
Distance between electrode and working table  mm 205~790
Size of oil reservoir mm 1760x960x560
Machine weight Kg 3500
Machine size mm 2300x2130x2800

Parameters and Specification

Max. Processing Electricity Current 30A 60A 100A
Max. Processing Speed 200 mm³/min 400 mm³/min 800 mm³/min
Min. electrode Consumption 0.002 0.002 0.002
Optimal Roughness 0.4μm 0.4μm 0.4μm
Input Power 3KVA 5KVA 8KVA
Controller model Common model (traditional model)
Including numeral tube display in Expert system 
CRT display including computer assistant logic control system 


Machine Precision

(According to Chinese standard GB5291-85): mm  
Item Result
Flatness of the working table 0.025
Straightness of vertical when the working table moves X: 0.02
  Y: 0.02
Straightness of horizontal when the working table moves X: 0.01/300
  Y: 0.01/300
Parallelism of the working table to motion of the working table X: 0.02/300
  Y: 0.02/300
Perpendicularity of transverse motion of the working table to lengthways motion of the working table 0.015/300
Perpendicularity of assistant motion of  Z-axis  to the working table 0.02/100
Straightness degree of motion of  main axis 0.02/300
Perpendicularity of motion of main axis to the working table 0.01/100
Torsion of motion of principal axis 0.01
Parallelism of linked plane of main axis to the working table 0.01/100
Side rigidity of main axis 0.01
Tensional rigidity of main axis 0.01