MK series Large work-piece wide grinding wheel CNC High Precision Centreless Grinding Machine

Technical Data

Items	MK1060	MK200	MK400	MK500	MK11250
Plunge-feeding Grinding Diameter	5-60mm	5-100mm	5-200mm	5-200mm	10-250mm
Max grinding length(Plunge-feeding)	195mm	190mm	390mm	490mm	590mm
Through-feeding Grinding Diameter	5-60mm	5-100mm	5-200mm	5-200mm	10-250mm
Grinding wheel Specification(mm)	500*200(250)*305	500*200(250)*305	600*400*305	600*500*305	600*600*305
Regulating wheel specification(mm)	350*200*127	350*200(300)*203	350*400*203	350*500*203	350*600*203
Grinding wheel speed	1318r/min	1100r/min	1100r/min	1100r/min	1110r/min
Regulating wheel speed(stepless)	10-200 r/min	10-200r/min	10-200r/min	10-2001/min	10-200r/min
Regulating wheel Swiveling angle(Vertical)	-1°- +5°	-2°~5°	-2°~5°	-2°~5°	-2°- +4°
Regulating wheel Swiveling angle(Horizontal)	0°- +5°	-1°~ 3°	-1°~ 3°	-1°~ 3°	0°- +3°
Grinding wheel frame min feed amount	0.001mm	0.001mm	0.001mm	0.001mm	0.001mm
Regulating wheel frame min feed amount	0.001mm	0.001mm	0.001mm	0.001mm	0.01mm
Grinding wheel dresser feed amount/division	0.01mm	0.001mm	0.001mm	0.001mm	0.01mm
Regulating wheel dresser feed amount/division	0.01mm	0.01mm	0.01mm	0.01mm	0.01mm
Height from centerline of gri.wheel & reg.wheel to workrest	250mm	200mm	200mm	200mm	290mm
Grinding wheel motor (KW)	15KW	22kW	30kW	37kW	45KW
Regulating wheel motor (KW)	1.5KW	3kW	3kW	3kW	3KW
Power supply	3N 380V 50HZ	3N 50HZ 380V	3N 50HZ 330V	3N 50HZ 380V	3N 50HZ 380V
Machine dimension in mm (L*W*H)	2050*1680*1380	3200*1785*1800	3300*1780*1900	3400*2100*1800	3700*1850*1820
Machine weight (Kg)	≈3200Kg	≈7500Kg	≈9000Kg	≈10000 Kg	≈ 11000Kg
Roundness (mm)	0.001mm	0.001mm	0.001mm	0.001mm	0.002mm
Cylindricity  (mm)	0.002 mm	0.0018mm	0.0018mm	0.0018mm	0.005mm
Roughness (μm)	Ra0.16μm	Ra0.16μm	Ra0.16μm	Ra0.16μm	Ra0.32μm

Product Introduction

Through grinding : It is mainly used for grinding cylindrical surfaces of various ring and shaft parts.

Plunge-feed : Hand-cut grinding is carried out on all kinds of stepped, tapered and cylindrical rotating surfaces.

Technical Advantages and Features :

1. High-precision grinding capability: CNC Centerless grinder adopts high-precision guide wheel spindle and grinding wheel spindle design, such as double-row cylindrical roller bearing structure and double support structure, to ensure high rotation accuracy.

2. Strong cutting force and high grinding wheel utilization rate: The grinding wheel width of the centerless grinder is large, such as 600mm wide grinding wheel, which makes the cutting force strong and the grinding wheel utilization rate high.

3. High-efficiency grinding: Due to the wide thickness of the grinding wheel, the grinding allowance of one pass can be increased during the grinding, reducing the number of repeated grindings, thereby improving productivity.

4. Stable bearing capacity: The grinding wheel and guide wheel adopt a double-support hydrodynamic bearing structure, which makes the grinding bearing capacity strong.

5. Automation-friendly layout: The machine tool has a double-sided mobile layout, the bracket is fixed on the bed, the guide wheel frame only makes adjustment movements, the workpiece position remains unchanged, and it is easy to equip various feeding devices, which is convenient for automation.

6. Sensitive movement and vibration resistance: The grinding frame adopts a plastic-coated guide rail structure, which is sensitive to movement, can achieve micro-feeding and has vibration resistance, and the guide rail is not easy to wear.

7. Fine feed control: The feed mechanism adopts a Japanese servo motor to drive a high-rigidity reducer, and drives the ball screw through a coupling to achieve feeding. The minimum feed amount can reach 0.001 mm.

8. Stepless speed regulation and anti-backward drag function: The guide wheel adopts an AC variable frequency stepless speed regulation device, which can not only achieve stepless speed regulation, but also has an anti-backward drag function.

9. Hydraulic drive dresser: The sand and guide wheel dressers are hydraulically driven for reciprocating and stepless speed regulation.

10. Human-machine dialogue operation interface: The operation adopts touch screen human-machine dialogue, with automatic cutting-in grinding program, and feed amount, speed and time are all adjustable.

11. Modular design: The machine tool is modularly designed with beautiful appearance, and users can configure and purchase according to their needs.

12. International quality management system: The ISO9001 international quality management system is adopted to ensure product quality.

13. Wide range of applications: The center-less grinder is suitable for a wide range of applications from tiny nozzle needles to high-precision pump pistons to heavy rail shafts.

Advantage

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