CNC Centerless Grinding Machine
GK Series
This machine tool is a wide grinding wheel centerless grinder, mainly used for grinding the outer surfaces of various bearing outer rings with diameters ranging from 10 to 200mm, as well as the outer surfaces of other similar parts with equal diameters.
The machine tool also has an automatic cutting mechanism and hydraulic and electrical control system for the robotic arm. Therefore, equipped with necessary loading and unloading devices for the robotic arm and other specialized devices, the machine tool can also perform cutting and forming grinding.
Specifications
| Parameter Item | Sub-item | GK10200 | GK11200 | GK11250 |
| Models | – | GK10200 | GK11200 | GK11250 |
| Diameter | Infeed/plunge feed | 10-200mm | 10-200mm | 10-250mm |
| Through feed | – | – | – | |
| GW SPEC.(O.D.widthI.D.) | – | 600x400x305mm | 500x600x305mm | 600x600x305mm |
| RW SPEC. (O.D.widthI.D.) | – | 350x400x203mm | 350x600x203mm | 350x600x203mm |
| GW Speed | – | 1110r/min | 1330r/min | 1110r/min |
| RW Speed | – | 10-200r/min | 10-200r/min | 10-200r/min |
| Swiveling Angle of RW | Vertical | -2°~+4° | -2°~+4° | -2°~+4° |
| Horizontal | -2°~+4° | 0°~+3° | 0°~+3° | |
| Main GW min feeding amount | – | 0.001mm | 0.001mm | 0.001mm |
| GW dresser min feeding amount | – | 0.01mm for 1-axis, 0.001mm for 3-axes | 0.01mm for 1-axis, 0.001mm for 3-axes | 0.01mm for 1-axis, 0.001mm for 3-axes |
| Height from center line of GW & RW to work rest | – | 290mm | 290mm | 290mm |
| Cooling water flow | – | 200 L/min | 200 L/min | 200 L/min |
| GW Motor(KW) | – | 30 | 37 | 45/55 |
| Dimension(LWH) | – | 3600x1850x1720mm | 3500x1850x1720mm | 3700x1850x1820mm |
| Machine Weight(KG) | – | 10000 | 11000 | 12000 |
Machine performance and technical data.
Machine body
- Casting, natural aging and artificial heat treatment for reasonable deformation and better durability.
GW, RW.
- 400mm width for larger grinding amount and higher efficiency.
- Double feeding movement, work-rest fixed onto the machine body, easy for auto loading and unloading adjustment.
- Double supporting for GW, RW, better reliability.
- Five bearing bushes, double supporting for GW and RW spindles, better rigidity for fine heavy grinding.
Feeding
- Plastic-surface guideway for motion sensitivity, micron feed, vibration resistance, and antifraying.
- Servo motor with planet-gear speed reducer, drive ballscrew through shaft coupling min feeding amount 0.001mm.
Dressing for GW and RW
- GW dresser: Servo motor drives ballscrew for GW dresser feeding and reciprocating.
- RW dresser:Hydraulic transimission for reciprocating,step-less speed adjusting, manual dial for RW dresser feeding.
Cooling
- Cooling water tank with magnetic separator.
Electric
- Converter for RW motor, step-less speed adjusting.
- Operation board covering grinding, dressing, feeding, etc. Adjusting.
Mitsubishi PLC control system, Siemens optional.
Main Accessories
| Name | SPEC. | QTY | Unit | Brand |
| Control system PLC | Q sery | 1 | set | Mitsubishi |
| Servo motor | 3 | set | Mitsubishi | |
| Operation display screen | 10’ | 1 | set | Weilun |
| Ball screw | 3 | set | Nanjing | |
| Converter for RW | 3.7KW | 1 | pc | Mitsubishi |
| RW motor | 2.2KW | 1 | pc | Wannan |
| GW motor | 30KW | 1 | pc | Wannan |
| low-voltage apparatus | 1 | set | Schneider |