Machine Tools & Mechatronics
Grinders Line Up
E500G
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Outline
Stable dimensional change from initial workpiece -Structure minimizing thermal
Low vibration technology produced utilizing JTEKT overhaul engineering to enable high class grinding
Equipped with a coolant unit for grinding high accuracy parts. *optional specification
- Thermal displacement is suppressed by cooling heat generating components such as the wheelhead, workhead and motor.
- Compensation not required due to stable dimensional change from cold start.
- Achieves high accuracy and low vibration rotation by balancing motor parts. This reduces wheelhead vibration by 70% and achieves a high quality grinding surface (mirror grinding).
- Clean coolant is supplied to the machine through the removal of minute chips that conventional units are unable to eliminate.
- Clean coolant enables the grinding of parts that require high accuracy (surface grade).
Specification
Item | Unit | e500GP-280 | e500GA-280 | |||
Normal Wheel Spesifications | Normal Wheel Spesifications | Normal Wheel Spesifications | Normal Wheel Spesifications | |||
Distance between centers | mm | 280 | 280 | |||
Swing over table | mm | φ200 | φ200 | |||
Grinding diameter | mm | 0 – φ80 | 0 – φ80 | |||
Load between centers | kg | 5 | 5 | |||
Center height from floor | mm | 1000 | 1000 | |||
Wheel | Bearing | TOYODA STAT BEARING | TOYODA STAT BEARING | |||
O.D. x width (max.) x I.D. | mm | φ510x125xφ203.2 | φ350x50xφ180 | φ510x125xφ203.2 | φ370x50xφ180 | |
Sufface speed | m/s | 45[60] | 45 [60] [80] | 45[60] | 45 [60] [80] | |
Wheelhead | Feed Method | V-flat slide, ball screw drive | V-flat slide, ball screw drive | |||
Rapid feedrate | φ40 | φ40 | ||||
Minimum input increment | m/min | φ0.0001 | φ0.0001 | |||
Table traverse | Feed Method | V-flat slide, ball screw drive | V-flat slide, ball screw drive | |||
Rapid feedrate | 30 | 30 | ||||
Minimum input increment | 0.0001 | 0.0001 | ||||
Workhead | Type | Fixed axis | Fixed axis | |||
Center | MT No.3 | MT No.3 | ||||
Rotation speed | minx1 | 22 – 500 | 22 – 500 | |||
Foodstock | Type | Hydraulic type with manual taper adjusment | Hydraulic type with manual taper adjusment | |||
Center | MT No.3 | MT No.3 | ||||
Stroke | mm | 60 | 60 | |||
Electric unit | V | Supply voltage AC200V, control voltage DC24V | Supply voltage AC200V, control voltage DC24V | |||
Electric motor | Wheel spindle | kW | 5.5[7.5] (4P) | 5.5[7.5] [11] (4P) | 5.5[7.5] (4P) | 5.5[7.5] [11] (4P) |
Wheelhead feed | kW | 1.6 (Servomotor) | 1.6 (Servomotor) | |||
Table traverse feed | kW | 1.6 (Servomotor) | 1.6 (Servomotor) | |||
Work spindle | kW | 1.6 (Servomotor) | 1.6 (Servomotor) | |||
Hydraulic oil pump | kW | 0.75 (4P) | 0.75 (4P) | |||
Wheel spindle bearing oil pump | kW | 0.25 (2P) | 0.25 [0.5] (2P) | 0.25 (2P) | 0.25 [0.5] (2P) | |
Lubricant oil pump | kW | 0.04 (4P) | 0.04 (4P) | |||
Grinding fluid pump | kW | 0.25(2P) | 0.25(2P) | |||
Tank capacity | Hydraulic oil | L | 10 | 10 | ||
Wheel spindle bearing oil | L | 15 | 15 | |||
Lubricant oil | L | 6 | 6 | |||
Coolant | L | 165 | 165 | |||
Machine weight | kg | 4000 | 4000 | 4000 | 4000 |