BUG-200G High Accuracy Universal Cylindrical Grinding Machine
High Precision Universal Cylindrical Grinding Machine
BG-200G BGB-200G BUG-200G BUGB-200G
Features and Performance
- With the screw pump adopted in the hydraulic drive system and it gains features of smooth running and low running noise.
- Equipped with sleeve type big conical degree hydrodynamic bearing shafting with integral bearing bush in wheel head, high rotary precision and rigidity are realized.
- The feeding guideway uses antifriction & plastic-filming guideway, thus promoting the smoothness and vibration resistance of low-speed operations.
- Besides the advantages of high machining accuracy, reasonable overall layout and attractive appearance, the operating handles of the machine are centralized arranged and viesualization, thus to make the machine easy to control and safe to operate.
- With the function of semi-automatic plunge-cut grinding and longitudinal grinding controlled by the sizematic grinding or automatic measuring instrument, the machine of BGB/BUGB type (high-precision semi-automatic) can be used for processing small lot or batched high precision parts.
- For the BGB/BUGB type machine (high-precision semi-automatic), all the grinding functions and sequence of operation in the processing cycle are controlled by PLC.
Main Accessories
- Balancing mandrel
- Wheel balancing stand
- Three-jaw chuck(Only for universal machines Φ130mm)
- Internal grinding attachment(Only for universal machines)
- Wheel flange
- Coolant tank (Optional magnetic coolant separator is available)
- Stand grinding wheel dresser
Special Accessories
- Closed center rest(Φ10-Φ75mm)
- Open center rest(Φ5-Φ50mm)
- Four-jaw chuck(Φ160mm)
- Automatic measuring device(For semi-automatic machines)
- Paper filter(High precision machine tool accessory)
- Magnetic coolant separator
Technical Parameters
| Specifications | Units | BG-200G BGB-200G | BUG-200G BUGB-200G | |||||
| *500 | *750 | *1000 | *500 | *750 | *1000 | |||
| Height of center | mm | 125 | 125 | |||||
| Distance between centers | mm | 520 | 765 | 1050 | 520 | 765 | 1050 | |
| Maximum swiveling diameter | mm | 240 | 240 | |||||
| Maximum grinding length | mm | 500 | 750 | 1000 | 500 | 750 | 1000 | |
| Range of external grinding | mm | 5-200 | 5-200 | |||||
| Range of internal grinding | mm | - | 13-80 | |||||
| Maximum internal grinding depth(over 45mm) | mm | - | 125 | |||||
| Maximum workpiece weight between centers | kg | 50 | ||||||
| Grinding wheel | OD.*W*ID. | mm | 400*(32-50)*203 | |||||
| Maximum linear speed | m/s | 35 | ||||||
| Swiveling angle of worktable | Clockwise | ° | 9 | 8 | 3 | 9 | 8 | 3 |
| Counter-clockwise | ° | 9 | 8 | 7 | 9 | 8 | 7 | |
| Taper hole of spindle | Work head | Morse4 | ||||||
| Tailstock | Morse4 | |||||||
| Total power | Kw | 7 | 7.5 | |||||
| Net weight | kg | 2500 | 3000 | 3500 | 2500 | 3000 | 3500 | |
| Gross weight | kg | 3100 | 3600 | 4100 | 3100 | 3600 | 4100 | |
| Overall dimensions | Length | mm | 2800 | 2900 | 3800 | 2800 | 2900 | 3800 |
| Width | mm | 2200 | ||||||
| Height | mm | 2200 | ||||||
Working Accuracy
Inspection content | Sketch oftest-piece and machining condition(mm) | Inspection item | Units | BG-200G BGB-200G | BUG-200G BUGB-200G | |||||
*500 | *750 | *1000 | *500 | *750 | *1000 | |||||
Grinding accuracy of testpiece between centers | L=150 d=50 | | Roundness | mm | 0.0005 | 0.0005 | ||||
L=200 d= 60 | ||||||||||
L=350 d=35 | Consistency of the diameter in longitudina section | mm | 0.003 | - | 0.003 | - | ||||
L=750 d=75 | - | 0.005 | - | 0.005 | ||||||
- | Roughness | um | Ra≤0.01 | Ra≤0.01 | ||||||
The grinding accuracy of short testpiece on chuck | L=30 d=60 | | Roundness | mm | - | 0.002 | ||||
- | Roughness | um | - | Ra≤0.04 | ||||||
The accuracy of testpiece internal grinding on chuck | L=50 d=30 | | Roundness | mm | - | 0.002 | ||||
L=100 d=60 | ||||||||||
- | Roughness | um | - | Ra≤0.04 | ||||||
Accuracy of testpiece plunge cut grinding | L=30 d=25 | | Consistency of batched parts diameter after grinding | Fixed distance grinding: 0.01/20 pieces | ||||||
L=30 d=40 | ||||||||||
Layout Plan(Unit: mm)
Max. grinding length | A | B | C |
500 | 1500 | 1800 | 2400 |
750 | 2100 | 2290 | 3150 |
1000 | 2500 | 2800 | 3900 |
The foundation depth is determined by the property of soil and should not be less than 400mm.
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