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MK2120 CNC internal grinding machine

Home - Product - NC internal grinding machine series

 
 

Main characteristics of this machine tools

● This machine is a two axis (X-axis, Z-axis) CNC Internal Grinding machine, which is mainly used to grind the inner hole, step hole, inner end face and outer end face of the work piece. The grinding cycle is completed automatically (with automatic feed, withdrawal, rough grinding and fine grinding); Automatic dressing of grinding wheel, automatic compensation, etc.).
● The machine tool adopts the structure mode that the work piece box do the forward and backward feed movement and the worktable (grinding wheel frame) do the left and right movement. The feeding guide rail of the work piece box and the reciprocating guide rail of the grinding wheel frame are linear rolling guide rails, and the movement is driven by the servo motor throught ball screw.
● The rotation speed of work piece spindle and grinding wheel motorized spindle is controlled by frequency converter to realize stepless speed regulation.
● The work piece fixture use a hydraulic power chuck, and other matching fixtures can be configured according to the particularity of the user's work piece.
● The machine tool adopts a fully enclosed enclosure, with a front rotary operation box and a rear backpack electrical cabinet.

Specification parameter list

Model of machine tools MK2120
Grinding aperture(mm) ф20-200
Maximum grinding depth (mm) 200
Swing diameter of work piece (mm) Inside the shell (mm) ф400
Outside the shell (mm) ф600
Maximum rotation angle of headstock(°) 30°
Rotating speed of work piece(r/min) 30-600 stepless speed regulation
Rotating speed of grinding wheel (r/min) 0-24000 stepless speed regulation
Power of x axis servo motor(kw) 2
Resolution of z axis(mm) 0.001
Maximum stroke of z axis(mm) 200
Power of z axis servo motor(kw) 3
Resolution of z axis(mm) 0.001
Maximum stroke of z axis (mm) 600
Power of work piece motor (kw) 2.2
Power of grinding wheel motor(kw) 7~15
Total power of machine tools (kw) 23.8
Outline dimension of machine tools (mm) 3100×2120×2000
Weight of machine tools (kg) 4500
Working accuracy (according to standard specimen) Roundness of internal hole(μm) 2
Cylindricity of internal hole (μm) 3
Surface roughness of internal hole(μm) Ra0.4

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