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Manual Surface Grinding machine (M820)
3-axis manual operation
High rigidity H-frame column with spindle center to table
Enhanced ribbed full cast iron base
Enlarged spindle housing for heavier grinding
Cartridge w / 4 preloaded class 7 (P4) bearing
Roller steel balls on linear table ways for easy and smooth longitudinal movements.
Double-V saddle ways for rigidity
Manual lubrication system
They have compact construction, excellent capability, and suitable to grinding surface and complex form surface by form dressed whell. This kind of machine can be performed without power feeding. The distance between the grinding wheel and working table has been enlarged because of its reliablity, flexibility, high accuracy, high rigidity, small thermo-deformation and low noise.
1 Adopt the exceeding precise class7(P4 level) ball bearing for spindle
2 Bring transmission by synchronous belt, operating simple and convenient
Grinding Machine/Grinder (M820)
Hydraulic longitudinal, power corss and vertical hand infeeds operation.
All 3 axises are roller bearing slides
Hardened & ground ways (removable) on table, carriage / saddle & column
Cartridge spindle W/ 4 preloaded class 7 (P4) bearing for better workpiece accuracy.
Table, saddle & column move on linear table ways MID-level downfeed handfeel placement for convenient and easy position for Z-axis.
Specification:
Model
M618A
M820
Working table
Table Size (L× W)
mm
460×180
480x200
Max movement of working table(L× W)
mm
500×190
530x220
T -Slot number×width
mm
1×14
1×14
Grinding head
Max distance from spindle center to table surface
mm
335
450
Wheel Size(Outer diameter×width×Inner diameter)
mm
φ180×13×Φ31.75
φ200×20×Φ31.75
Wheel speed
50HZ
r/min
2850
2850
Table slide -way
/
V-type rail with steel-ball
V-type rail with steel-ball
Feed amount
Vertical feed on  handwheel
Per revolution
mm
1.25
1.25
Per graduation
mm
0.01
0.01
Cross feed on handwheel
Per revolution
mm
2.5
2.5
Per graduation
mm
0.02
0.02
Motor power
Spindle motor
kw
1.1
1.1
Coolant pump motor
kw
0.4
0.4
Weight
Net
kg
650
700
Gross
kg
750
800
Overall dimension(L×W×H)
mm
1550x1150x1590
1680x1140x1760
Package dimension(L×W×H)
mm
1000x1150x1760
1140x1250x1940
Standard accessories:
Tool box
Balancing stand balancing bar
Flange wrench
Screwdriver
Balancing screw
Open-end wrench
Inner hexagon spnner
Wheel dresser holder
Wheel dresser
Machine flange
Wheel flange
Chuck
Optional accessories:
 1.   Tilting permanent chuck
 2.   Demagnetizer
 3.   Overhead parallel dresser
 4.   Angle dresser
 5.   Radius dresser
 6.   Precision vice
 7.   Dust suction device
 8.   Digital readout system
 9.   Working light
 10. Wheel flange
Â
Â