Product introduction of DD703 EDM drilling machine

the electric spark piercing machine is also called electric spark drilling machine, electric spark small hole machine and electric spark fine hole discharge motor. Its working principle is to use the fine metal copper tube (called electrode wire) moving continuously up and down vertically as the electrode to etch the metal forming of the workpiece by pulse spark discharge. Different from WEDM and molding machine, its electric pulse electrode is a hollow copper rod, and the medium passes through the fine hole in the middle of the copper rod hole to cool and remove chips.
the discharge between the electrode and metal of the electric spark piercer produces high-temperature corrosion metal to achieve the purpose of perforation. It is used to process the fine holes of superhard steel, cemented carbide, copper, aluminum and any conductive material. EDM perforating machine can process 0.015mm small holes at least, and can also process small holes with taper. It is widely used in precision die processing. It is generally used as the supporting equipment of WEDM machine tool. It is used for threading holes, chemical fiber spinnerets, spinneret holes of spinneret plate, group holes of filter plate and sieve plate, engine blades, heat dissipation holes of cylinder block, hydraulic Oil circuit and air circuit hole of pneumatic valve body.
the rotating body of electric spark piercer has no water leakage for 2 years, which completely solves the problem of water leakage that can not be avoided by ordinary piercers. the z-axis adopts Taiwan linear guide rail to ensure the linear accuracy of z-axis, which makes the hand feel more comfortable and the appearance more beautiful.

Performance characteristics of DD703 EDM drilling machine

1. Machining diameter 0.3mm~ 3mm deep hole (depth diameter ratio up to 300:1)  
2. the processing speed can reach 30 ~ 60mm per minute (depending on the material)  
3. It can process wire cutting starting hole, filter hole, nozzle hole, air hole, group hole, ultra deep hole, etc  
4. It can process different conductive materials, even semi conductive materials, especially suitable for processing stainless steel, quenched steel, copper, aluminum, cemented carbide, etc  
5. It can be processed directly on the inclined plane and curved surface of the workpiece  
6. the drill bit and tap broken in the workpiece can be removed without damaging the original hole thread  
7. Tap water or saponified liquid can be directly used as working fluid, without pollution  
8. Simple and convenient operation  
9. the X and Y axes of the workbench are equipped with digital display devices

10. New one-piece water pump.

Technical Parameter

DD703
Worktable size(mm)	330*480
Worktable travel(mm)	300*400
Spindle head stroke(mm)	380
Servo travel(mm)	370
Electrode diameter(mm)	0.3-3.0
Max.Machining Speed(mm/min)	40
Max.Aspect ratio	300-1
Working fluid	Running water
Working pressure(mpa)	7
Max.Processing Current(A)	30
Max. Power consumption(KVA)	3
CoNtrol mode	Z-axis automatic
Digital display mode	Two axis digital display, optional three-axis digital display

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