Cylindrical Grinder G-630,UG-630,G-800
* G-630/G-800 cylindrical grinder is suitable for grinding outer cylindrical and conical surface; UG-630 universal cylindrical grinder
is suitable for grinding outer and inner cylindrical and conical surface.
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.
Technical Parameter
Specification |
Unit |
G-630 |
UG-630 |
G-800 |
Distance between centers |
mm |
2000/3000/4000/5000 |
2000/3000/4000/5000 |
3000/4000/5000 |
Center height |
mm |
370 |
370 |
500 |
Dia. ground (O.D) |
mm |
30-630 |
30-630 |
50-800 |
Dia. ground (I.D) |
mm |
- |
30-250 |
- |
Grinding length (O.D) |
mm |
2000/3000/4000/5000 |
2000/3000/4000/5000 |
3000/4000/5000 |
Grinding length (I.D) |
mm |
- |
320 |
- |
Loading capacity |
kg |
3000 |
3000 |
3000 |
Workhead swivel angle |
° |
- |
? |
- |
Workhead spindle taper |
- |
Metric 80 |
90° |
Metric 80 |
Workhead spindle speed |
rpm |
6-60 (stepless) |
Metric 80 |
5-50 (stepless) |
Wheelhead feed of handwheel per rev. (rough/fine) |
mm/rev |
4/0.5 |
14-140 (stepless) |
4/0.5 |
Wheelhead feed of handwheel per gra. (rough/fine) |
mm/gra |
0.02/0.0025 |
4/0.5 |
0.02/0.0025 |
External grinding wheel size |
mm |
750x75x305 |
0.02/0.0025 |
900x75x305 |
Max. peripheral speed of grinding wheel |
m/s |
35 |
600x75x305 |
35 |
Internal grinding spindle speed |
rpm |
- |
35/17.5 |
- |
Internal grinding wheel size |
mm |
- |
10000 |
- |
Table feed of handwheel per rev. |
mm |
5 |
175x32x32 |
5 |
Table swivel angle (CW) |
° |
2°/1° /1°/1° |
5 |
1° /1°/1° |
Table swivel angle (CCW) |
° |
4°/3° /2° /1.5° |
2°/1°/1°/1° |
3° / 2° /1.5° |
Table longitudinal feed speed |
m/min |
0.1-2.5 |
4° /3° /2.5°/1.5° |
0.1-2.5 |
Tailstock quill taper |
- |
Metric 80 |
0.1-2.5 |
Metric 80 |
Tailstock quill travel |
mm |
70 |
Metric 80 |
70 |
External grinding motor power |
kw |
22 |
70 |
22 |
Internal grinding motor power |
kw |
- |
7/11 |
- |
Workhead motor power |
kw |
15 |
1.5 |
15 |
Roundness |
um |
3 |
15 |
3 |
Cylindricity |
um |
8/8/12/12 |
3 |
2008/12/12 |
Roughness |
um |
Ra0.32 |
8/8/12/12 |
Ra0.32 |
Gross weight |
tons |
18/22/23/26 |
Ra0.32 |
22/23/26 |
Packing size (LxWxH) |
cm |
720/876/1100/1270x240x226 |
18/22/23/26 |
876/1100/1270x240x230 |
Standard accessories:
Measuring bridge plate, Open steady rest, Wheel flange, Wheel extractor, Balancing arbor, Grinding wheel, Coolant tank,
Carbide tripped center,Driving dog, Wheel dresser (Without diamond pen), Work lamp, Internal grinding attachment (UG),
3-jaw chuck (UG), Extension shaft (UG), Internal grinding wheel (UG), Full set tools, Leveling wedge,
Operation manual (English edition).
Optional accessories:
Balancing stand, Digital readout, Close steady rest, End wheel dresser, Radius wheel dresser,
Center grinding attachment (G), Magnetic separator, Paper filter.