Overview of SK703-4050 Small Hole EDM Drilling Machine

the machine belongs to the high-speed EDM small hole machining equipment. It uses copper tube as the electrode and is guided by the guide. A high-efficiency pulse power supply is applied between the electrode and the workpiece. during machining, the spindle drives the electrode to servo feed under the control of the servo system, and generates pulse high-frequency discharge between the electrode and the workpiece to etch the workpiece in a controlled way. during processing, high-pressure water quality working fluid is ejected from the inner hole of the electrode to implement forced chip removal cooling in the processing area to ensure the smooth progress of processing. the machining aperture range is generally φ 0.2-4mm, the maximum depth diameter ratio with a hole diameter of about 1mm can reach more than 300:1, and the processing speed is generally 1-40mm / min. It can penetrate directly from the inclined plane and curved surface without being limited by the hardness and toughness of the material. the NC EDM piercer integrates advanced functions such as z-axis fixed depth precision machining, x-axis and y-axis servo detection, and has the advantages of convenient use, simple operation, stability and reliability, Products with wide application range and other characteristics. It can be used to cut threading holes, filter holes, pores, group holes, nozzle holes and other deep precision holes that are difficult to be processed by traditional processing methods.

Overview of product features and advantages of SK703-4050 Small Hole EDM Drilling Machine

1. Rail support is adopted, which can support heavy load and move quickly to ensure accurate positioning.
2. the marble base is wide and solid, with full load support design and solid structure, which can ensure the heavy load capacity during processing.
3. the main shaft head is reinforced with ribs, and the contact length ratio between the main shaft head and the column is appropriate to provide stable support for the main shaft.
4. Three axis motor and precision high-speed ball screw are directly driven and pretensioned to enhance rigidity and precision.
5. X / Y axis is supported by linear slide rail and z-axis hard rail, which can make rapid displacement and obtain the best position accuracy to ensure accurate positioning.
6. the electric box adopts side hanging design to save floor space and maximize the use of limited space.
7. in order to ensure the quality of the whole machine, the main purchased parts are the products of world famous brand manufacturers.

Technical Parameter

SK703-4050
Worktable travel(mm)	400*500
Spindle head stroke(mm)	300
Servo travel(mm)	400
Electrode diameter(mm)	0.2-4
Max.Machining Speed(mm/min)	50-70
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	Basic three-axis CNC, multi-axis CNC can be customized according to customers, up to 7 axes

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