Machines for internal cylindrical grinding

MK2110 MK2120B CNC Internal Grinding Machine

Siemens or Fanuc system is used, the servo motor controlled numerically has good programming capacity for interpolation and linkage motion of axes.

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Features&performance

※ Siemens or fanuc system is used,the servo motor controlled numerically has good programming capacity for interpolation and linkage motion of axes.
※ Servo motors and ballscrew dive are used for both axes to ensure a simple and reliable driving of high sensitive movement without gap.
※ Either diaphragm chuck or hydraulically-operated chuck is available for high accuracy and easy loading.
※ Cartidge workspindle driven by an AC motor is used for workhead to ensure high accuracy and its speed can be varied in stepless with frequency inverter.
※ High power and high rigidity motorized spindle used for grinding wheel is driven by a frequency inverter.
※ A backpack electrical cabinet of the machine uses less space.

Main specifications

Machine model		MK2110	MK2120B
I.D.to be ground		F15~100mm	F30~200mm
Max.Grinding length		125mm	200mm
Max. swiveling diameter of part	Within hood	280mm	400mm
	Without hood	400mm	600mm
Staff's Swinging		30°	30°
Cross movement of workhead		150mm	250mm
Max.table travel		400mm	460mm
Max. wheelhead travel		200mm	200mm
Speed of table movement(z axis)		0.1~10m/min	0.1~10m/min
Speed of wheelhead movement (x axis)		0.1-5mm/min	0.1-5m/min
Resolution of z axis		0.001mm	0.001mm
Resolution of x axis		0.005mm	0.005mm
Work speed(stepless)		100-800r/min	100-800rpm
Wheel speed (as per part)		Optional	Optional
Total power		15kw	28kw
Weight		4000kg	4500kg
Dimensions		2600x1200x1700mm	3100x1680x1900mm
Roundness		2μm	2um
Cylindricity		3μm	4μm
Roughness		Ra0.32	Ra0.32
Size dispersity		0.015mm	0.015mm

Selection of Grinding Wheel for CNC Internal Grinding Machine

When using a CNC internal grinder for internal grinding, the choice of grinding wheel is important and can be said to be crucial. Generally, it is not allowed to choose grinding wheels larger than the diameter of the workpiece hole, nor can it choose grinding wheels that exceed the length of the workpiece hole. So, the choice should be cautious, and the appropriate grinding wheel and grinding wheel shaft should be selected according to the size of the workpiece aperture.
In another scenario, when operating a CNC internal grinding machine, if the diameter of the grinding wheel is too small, it will cause a decrease in its circumferential speed, resulting in a decrease in power. If the grinding wheel shaft is too long, it will reduce power and be prone to vibration problems.

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