Overarm Type Surface Grinder
HYDRAULIC MODE / CROSS TRAVERSE OF GRINDING WHEEL / PRECISION GRINDING

OVERARM Type, Surface Grinders are capable of basic surface, slot, side face, and profile grinding with optimal straightness, flatness, and mirror finish. The working table executes only longitudinal movements. This ensures full contact and support from the machine bed, even in the table limit position. Major parts are stress relieved to ensure maximum rigidity, stability and machining accuracy.
Product Specifications
MODELS | OSG-4010 | OSG-4510 | OSG-5010 | |
---|---|---|---|---|
GENERAL CAPACITY | Working Surface | 400 x 1000 MM | 450 x 1000 MM | 500 x 1000 MM |
Max. Longitudinal Traverse | 1000 MM | |||
Number of T-Slots | 2 | |||
CROSS FEED | Total Cross Traverse | 450 MM | 500 MM | 575 MM |
Movement / Rev. of Hand Wheel | 0.05 MM | |||
VERTICAL MOVEMENT | Hand Feed / Revolution | 1 MM | ||
Hand Feed / Division | 0.01 MM | |||
WHEEL HEAD | Grinding Wheel ( φ x Width x Bore) | 300 x 25 x 75 MM | 355 x 38 x 127 MM | |
Grinding Wheel Speed | 2800 RPM | 1500/1800 RPM | ||
Dist. Between Wheel & Table | 400 MM | |||
ELECTRICALS | Wheel Head Motor | 3 HP | 5 HP | |
Hydraulic Motor | 3 HP | 5 HP | ||
Coolant Pump | 0.18 HP | |||
Cross Feed Power | 0.5 – 1 HP |
Standard Accessories
- Grinding Wheel x 1 Set
- Wheel Flange
- Tool Box & Machine Light
- Bellow Cover
- Foundation Bolt Kit
- Instruction & Maintenance Manual
Optional Accessories
- Electromagnetic Chuck
- Flange Extractor
- Wheel Balancing Arbor
- Wheel Balancing Table
- Diamond Dresser with Base
- Coolant System with Magnetic Separator
- 2 Years Normal Spares
Salient Features
- The column is fixed over arm carries out only cross feed movements, this guarantees uniform contact between the column slide and machine bed in any column position. The column slide is guided by box type, hand scrapped to obtain smooth stick slip free movements.
- Vertical slide ways and the grinding wheels, creating a perpendicular movement of the spindle in relation to the working table, the housing construction is also designed for better rigidity.
- The cartridge type spindle is supported by Class 7 Super (CP 4) precision angular contact ball bearings, preloaded and select-fitted into spindle cartridge. This will guarantee a maximum run out of 0.002 mm for stable and accurate grinding.
- A Hydraulic overhead dresser is employed for Over Arm type and is mounted on the spindle head to allow the wheel to be dressed independent of the grinding height or column position.