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Timeway Machine Tool Co., Ltd.
Timeway Machine Tool Co., Ltd.
External Cylindrical Grinder
Model: G-800
Center height: 500mm
Diameter ground (O.D): 50-800mm
Loading capacity: 3000kg
Wheel size: 600x75x305mm
Technical Specification
Specification | Unit | G-800 |
Distance between centers | mm | 3000/4000/5000 |
Center height | mm | 500 |
Dia. ground (O.D) | mm | 50-800 |
Grinding length (O.D) | mm | 3000/4000/5000 |
Loading capacity | kg | 3000 |
Workhead spindle taper | - | Metric 80 |
Workhead spindle speed | rpm | 10-100 |
Wheelhead spindle speed | rpm | 870 |
Wheelhead rapid feed travel | mm | 100 |
Wheelhead cross travel | mm | 550 |
Wheelhead feed of handwheel per rev. (rough/fine) | mm/rev | 4/0.5 |
Wheelhead feed of handwheel per gra. (rough/fine) | mm/gra | 0.02/0.0025 |
External grinding wheel size | mm | 900x75x305 |
Max. peripheral speed of grinding wheel | m/s | 35 |
Table feed of handwheel per rev. | mm | 5 |
Table swivel angle (CW) | ° | 1° /1°/1° |
Table swivel angle (CCW) | ° | 3° / 2° /1.5° |
Table longitudinal feed speed | m/min | 0.1-2.5 |
Tailstock quill taper | - | Metric 80 |
Tailstock quill travel | mm | 70 |
External grinding motor power | kw | 22 |
Workhead motor power | kw | 15 |
Gross weight | tons | 22/23/26 |
Packing size (LxWxH) | cm | 890/1100/1500x260x230 |
Product Details
G-800 cylindrical grinder is suitable for grinding outer surface of cylinder and taper; UG-630 universal cylindrical grinder is suitable for grinding outer and inner surface of cylinder and taper.
The longitudinal movement of the worktable is driven by hydraulic or by handwheel. The worktable can rotate to a certain degree so as to be suitable for grinding taper.
The wheelhead cross feed is driven by hydraulic, which realizes automatic periodical feed and rapid feed. It can also do rough and fine feed through handwheel.
The worktable and wheelhead guideway adopt hydrostatic lubrication, its movement on low speed is smooth.
The spindle is supported by hydrostatic and hydrodynamic bearings of high rigidity, it makes the spindle have high rotary accuracy and perfect rigidity.
The workhead adopts inverter motor to realize stepless speed adjustment.
The workhead spindle, wheelhead spindle, internal grinding spindle, coolent pump, hydrodynamic and hydrostatic oilpump are driven by separate motors.
Each moving parts of the machine has electric, hydraulic and mechanic interlock structure the machine is well designed with pleasing appearance, all control lever are centralized in panel make operating easy
The wheel dresser can be assembled on the worktable surface of on the tailstock.
