The operation of the machine is simple and convenient. The principal axis is driven by DC servo motor or step-by-step motor with the advantages of speed adjustable, stabiliby good and noise lower.When the worktable moves, the light grating shows. The work liquid can be running water or pure water.(distilled water or deionized water) with better results.  
 The machine mainly drills small holes with big depth-diameter ratio(200:1) on stainless steel,chilled steel, strong alloy, copper and aluminum. 
 The machine can also erode away the auger and taper tap broken in the work piece without damaging the original hole or threads.

Type	Dracel of working table	X.Y.Z Travel(mm)	Interior Size of the Oil Groov(mm)	Spindle Weight(kg)	Max.Load Capacity(kg)	Max.processing Current（A）	Electrode consupption
D350	600×350	330×230×180+（180）	880×520×350	50kg	300kg	50/100	1%
D430	650×350	400×300×200+（200）	1100×600×360	70kg	500kg	60/100
D450	700×420	450×350×200+（200）	1180×620×400	70kg	600kg	60/100
D540	800×480	500×400×250+（300）	1250×750×500	120kg	1200kg	100
D650	1000×600	630×530×250+（350）	1700×1000×560	250kg	3500kg	100

Above form parameter will be able to have the change along with the product research and development, no longer alone informs each user.