- Model NO.: M820
- Processing Object: Gear
- Controlling Mode: Artificial
- Cylindrical Grinder Type: Universal Cylindrical Grinder
- Certification: CE, ISO 9001
- Table Size: 480X200
- Number of T-Slot: 1X14
- Max,Distance From Spindle to Table: 450mm
- Wheel Size: 200X20X31.75mm
- Coolant Pump: 0.4kw
- Trademark: UNI-TECH
- Specification: M820
- HS Code: 84602990
- Type: Surface Grinding Machine
- Abrasives: Grinding Wheel
- Automatic Grade: Manual
- Precision: High Precision
- Condition: New
- Table Travel: 530X220
- Speed of Woking Table: 3-20m/Min
- Wheel Speed: 2850rpm
- Hydraulic Station Motor: 1.5kw
- Working Pressure: 3MPa
- Transport Package: Wood Case
- Origin: China
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
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