Grinding Cycle(Plunge Type)
1. Plunge grinding
2. Both sides feed
2. LHS feed
2. RHS feed
2.Traverse grinding
3. Both sides feed
3. LHS feed
3. RHS feed
3. Plunge And Traverse grinding
Grinding Cycle(Angular Type)
1. Plunge grinding
2. Both sides feed
2. LHS feed
2. RHS feed
2.Traverse grinding
3. Both sides feed
3. LHS feed
3. RHS feed
3. Plunge And Traverse grinding
4. OD +End Face Grinding
Machine Design Feature
| Compare
EGP-2550 |
Compare
EGP-2575 |
Compare
EGP-25100 |
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|---|---|---|---|---|---|
| Grinding Capacity | Swing over table | mm | Ø250 | Ø250 | Ø250 |
| Distance between centers | mm | 500 | 750 | 1000 | |
| Max. grinding daimeter | mm | Ø230 | Ø230 | Ø230 | |
| Max. load held between center | kg | 80 | 100 | 100 | |
| Center distance between spindle & slide table | mm | 130 | 130 | 130 | |
| Grinding Wheel | Diameter x Width x Bore | mm | Ø455x50xØ127 (5") Opt.Ø455x50xØ152.4 ( 6") |
Ø455x50xØ127 (5") Opt.Ø455x50xØ152.4 ( 6") |
Ø455x50xØ127 (5") Opt.Ø455x50xØ152.4 ( 6") |
| Motor rated power / max. torque | kW/Nm | 3.75/13 | 3.75/13 | 3.75/13 | |
| Wheel speed | rpm | 1400 | 1400 | 1400 | |
| Workhead | Swiveling angle | deg | 90 | 90 | 90 |
| Spindle speed (infinite variable) | rpm | 10~600 | 10~600 | 10~600 | |
| Motor rated power / max. torque | kW | 0.75 | 1 | 1 | |
| Center taper | - | MT3(Opt.MT4) | MT3(Opt.MT4) | MT3(Opt.MT4) | |
| Spindle type | - | Fixed or Rotary | Fixed or Rotary | Fixed or Rotary | |
| Diameter of bore | mm | Ø20 | Ø20 | Ø20 | |
| Tailstock | Quill travel | mm | 25 | 25 | 25 |
| Cente taper | - | MT3(Opt.MT4) | MT3(Opt.MT4) | MT3(Opt.MT4) | |
| X Axis | Travel | mm | 200 | 200 | 200 |
| Max. rapid feedrate | m/min | 6 | 6 | 6 | |
| Heidenhain linear scale resolution | um | 0.05 | 0.05 | 0.05 | |
| Min. increment | mm | 0.0001 | 0.0001 | 0.0001 | |
| Servo motor rated power | kW | 1.2(F) / 1.5(M) | 1.2(F) / 1.5(M) | 1.2(F) / 1.5(M) | |
| Z Axis | Travel | mm | 750 | 1000 | 1250 |
| Swiveling angle | deg | ±7 | ±6 | ±5 | |
| Max. rapid feedrate | m/min | 8 | 8 | 8 | |
| Min. increment | mm | 0.0001 | 0.0001 | 0.0001 | |
| Servo motor rated power | kW | 1.2(F) / 1.5(M) | 1.58(F) / 2.2(M) | 1.8(F) / 2.2(M) | |
| Motor | Hydraulic pump | kW | 0.38 | 0.38 | 0.38 |
| Lubrication pump | kW | 0.2 | 0.2 | 0.2 | |
| Slideway lube motor | kW | 0.2 | 0.2 | 0.2 | |
| Coolant pump | kW | 0.2 | 0.2 | 0.2 | |
| Machine | Net Weight (semi-enclosed splash guard) | kg | 3100 | 3500 | 3900 |
| Gross Weight | kg | 3800 | 4200 | 4600 | |
| Size | kg | 3170 x 2500 x 2050 | 3670 x 2500 x 2050 | 34200 x 2500 x 2050 |
Standard accessories
| Infinite variable workhead w/servo motor |
| Diamond Dresser and Stand |
| Automatic wheel speed change (15 steps) |
| Carbide tip center |
| X Axis linear scale (resolution 0.05 um) |
| Levelling bolts and blocks |
| Operation manual and part lists |
| Fanuc CNC Controller (0i TF) |
| Grinding Wheel + Wheel Flange |
| Standard oil cooler (cooling fan) |
| Standard coolant tank 140L |
| MPG handwheel 2 Axes control |
| Touch probe (for EGA series only) |
| LED working light |
| Tools and Tool Box |
| Electricity cabinet w/ heat exchanger |
| Semi-enclosed splash guard |
| Wheel Extractor |
| 4-color indication signal light |
| Electrical wiring diagram |
Optional accessories
| BS VM25 Integration system (OD gauging+ crash & gap control + dynamic balance system) |
| BS VM15 Integration system (OD gauging+ crash & gap control) |
| Hydraulic tailstock (w/ foot pedal) |
| Z Axis linear scale (resolution 0.05 um) |
| Manual grinding wheel balance system (vibrator) |
| Grinding wheel dynamic (balance system) |
| Wheel spindle lubrication oil cooler for hydrodynamic spindle |
| Gap & crash control device |
| Safety door lock |
| Workhead spindle adjustment arbor |
| Auto gauging device |
| Coolant system with magnetic separator & paper lter |
| Coolant system with magnetic separator |
| Coolant system with paper filter |
| Oil & mist collecting system |
| Spare grinding wheel flange |
| Full-Carbide center tip |
| FANUC 0i-TF i-Grind program |
| Mitsubishi controller (M80) i-Grind program |
| Electrical cabinet air conditioner |
| Internal grinding attachment (for EGP series only) |
| Workhead upgrade to MT4/MT5 |
| Tailstock upgrade to MT4/MT5 |
| Automatic 3-jaw hydraulic chuck |
| CE standard electrical cabinet |
| Transformer |
| Workpiece carrier |
| Full-enclosed splash guard |
| Workpiece supporting seat, 2pc / set |
| 2 Point Steady Rest |
| 3-point steady rest |
| 3-jaw scroll chuck |
| 4-jaw scroll chuck |
Work Head
NN bearing designed work spindle offers heavy duty load capacity, optimal rotation accuracy, and high rigidity. The servo motor drive offers steady speed and torque during the grinding operation. A positive air purge system keeps grinding swarf and coolant out of the work head, thus it prolongs its life.
NN bearing designed work spindle offers heavy duty load capacity, optimal rotation accuracy, and high rigidity. The servo motor drive offers steady speed and torque during the grinding operation. A positive air purge system keeps grinding swarf and coolant out of the work head, thus it prolongs its life.
Rigid Machine Base
The machine based is designed to ensure the table is fully supported on both ends. The heavily ribbed box-type base is made of Meehanite casting, providing excellent rigidity and stability of the machine.
The machine based is designed to ensure the table is fully supported on both ends. The heavily ribbed box-type base is made of Meehanite casting, providing excellent rigidity and stability of the machine.
Tail Stock
A coolant nozzle is installed on the top of the tailstock for cooling the center tip. An air floating devise allows for smoother movement and protection of the table.An optional tailstock quill travel of 75mm helps to load/unload the workpiece with ease. The quill is oil-bathed to ensure smooth movement. An optional tailstock taper adjustment feature allows the operator to easily adjust for taper error.
A coolant nozzle is installed on the top of the tailstock for cooling the center tip. An air floating devise allows for smoother movement and protection of the table.An optional tailstock quill travel of 75mm helps to load/unload the workpiece with ease. The quill is oil-bathed to ensure smooth movement. An optional tailstock taper adjustment feature allows the operator to easily adjust for taper error.
X-axis Guideway
The hand scraped Double V guideways provide maximum support to the wheel head for greater stability and grinding capacity. This design insures superior accuracy over the life of the machine.
The hand scraped Double V guideways provide maximum support to the wheel head for greater stability and grinding capacity. This design insures superior accuracy over the life of the machine.
Wheel head Spindle Bearing Options:
Standard：Contact Bearing Type Spindle is easy to maintain, environmentally friendly and minimizes thermal growth issues.
Optional：Hydrodynamic Babbit Bearing Type Spindle applies SNCM220 super alloy steel with multiple heat treatments makes the surface hardness of spindle up to HRC 62. These features ensure maximum cutting capability and best part finish performance in the grinding operation.
Standard：Contact Bearing Type Spindle is easy to maintain, environmentally friendly and minimizes thermal growth issues.
Optional：Hydrodynamic Babbit Bearing Type Spindle applies SNCM220 super alloy steel with multiple heat treatments makes the surface hardness of spindle up to HRC 62. These features ensure maximum cutting capability and best part finish performance in the grinding operation.