Standard grinding cycles and multi-steps graphic
Inner through
2 Step straight hole
Inner through hole + outer end-face
Inner blind hole + Inner end-face
Inner taper
OD+end face(EGM-450)
Inner blind hole + ID chamer
Inner radius groovin
Inner through hole + Inner radius
Multi-step grinding
Profile grinding
Form grinding
Machine Design Feature
iGrind Operation
High speed box type dressing.
With EGM high speed box type dressing function, it drastically reduces the wheel dressing time.
This function allows the operator to input the specifications of the dresser and the geometric data of the profile to create the optimal dressing path.
More
Actual Processing
Grinding Sample
Specification
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| Compare EGI-150 CNC |
Compare EGM-350 CNC |
Compare EGM-350L CNC |
Compare EGM-450 CNC |
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| General capacity | Max. grinding ID | mm | 300 | φ400 | φ300 | φ400 | |
| Max. grinding OD | mm | φ300 | φ400 | φ330 | φ400 | ||
| Swing over workhead | mm | φ500 | φ500 | φ340 | 420 | ||
| Max. grinding depth | mm | 200 | 260 | 280 | 260 | ||
| Max. weight of workpiece | kg | 50 | 50 | 300 (w/ steady rest) | 50 | ||
| Max. length of workpiece | mm | 200 | 300 | 750 | 300 | ||
| Type of workhead | Single feeding wheelhead | Dual indenpendent wheelhead | Dual indenpendent wheelhead | Dual indenpendent wheelhead | |||
| Workhead | 3-Jaw chuck | Hydraculic - 8"/10"(opt.) | Hydraculic - 8"/10"(opt.) | Manual- 8"/10"(opt.) | Hydraculic - 8"/10"(opt.) | ||
| Swiveling angle range | deg | +15°~ -5° | +15°～-5° | +15°～ -5° | +15°～ -5° | ||
| Manual travel distance (toward Z axis) | mm | 250 | 250 | 550 | 250 | ||
| Spindle speed (infinite variable) | rpm | 0~1000 (Variable speed) | 0~1000 (Variable speed) | 0~1000 (Variable speed) | 0~1000 (Variable speed) | ||
| Motor rated power / max. torque | kw | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | ||
| Spindlehead(Y axis) | OD grinding wheel size | mm | N/A | N/A | N/A | φ405x50xφ127 | |
| ID grinding wheel size | mm | N/A | φ100 | φ100 | N/A | ||
| Max. spindle speed | rpm | N/A | 10,000 (std.) | 10,000 (std.) | 1300 (std.) | ||
| Spindle motor/ max. torque | Kw/Nm | N/A | 3.75Kw / 13Nm | 3.75Kw / 13Nm | 3.75Kw / 26Nm | ||
| Wheelhead(Z axis) | OD grinding wheel size | mm | N/A | φ100 | φ100 | N/A | |
| ID grinding wheel size | mm | φ100 | N/A | N/A | φ100 | ||
| End-Surface grinding spindle (Opt.Z2) | mm | φ80(CBN) | N/A | N/A | N/A | ||
| Max. spindle speed | rpm | 20,000 (std.) | 20,000 (std.) | 20,000 (std.) | 20,000 (std.) | ||
| Spindle motor/ max. torque | Kw/Nm | 3.75Kw / 13Nm | 3.75Kw / 13Nm | 3.75Kw / 13Nm | 3.75Kw / 13Nm | ||
| X axis | Travel | mm | 400 | 420 | 420 | 450 | |
| Max. rapid feedrate | m/min | 8 | 8 | 8 | 8 | ||
| Heidenhain linear scale resolution | um | 0.05 | 0.05 | 0.05 | 0.05 | ||
| Min. increment | mm | 0.0001 | 0.0001 | 0.0001 | 0.0001 | ||
| Servo motor rated power | Kw | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | ||
| Y axis | Travel | mm | N/A | 350 | 350 | 350 | |
| Rapid feedrate | m/min | N/A | 8 | 8 | 8 | ||
| Min. increment | mm | N/A | 0.0001 | 0.0001 | 0.0001 | ||
| Servo motor rated power | Kw | N/A | 1.8(F)/2.2(M) | 1.8(F)/2.2 (M) | 1.8(F)/2.2(M) | ||
| Z axis | Travel | mm | 350 | 350 | 350 | 350 | |
| Max. rapid feedrate | m/min | 8 | 8 | 8 | 8 | ||
| Min. increment | mm | 0.0001 | 0.0001 | 0.0001 | 0.0001 | ||
| Servo motor rated power | kw | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | 1.8(F)/2.2(M) | ||
| Motor | Hydraulic motor | Kw | 0.75 | 0.75 | 0.75 | 0.75 | |
| Coolant pump | Kw | 0.37+0.18 | 0.37+0.18 | 0.37+0.18 | 0.37+0.18 | ||
| Machine | Net weight | kg | 5000 | 5800 | 6800 | 6300 | |
| Gross weight | kg | 5500 | 6300 | 7300 | 6800 | ||
| Packing size (L x W x H) | mm | 3350x2250x1950 | 3350x2250x1950 | 4000X2250X1950 | 3350x2250x1950 | ||
Standard accessories
| Control system: Mitsubishi M80 or FANUC 0i-TF with 10.4” screen |
| Three-direction dresser stand x 1 set, diamond dresser x 3 pcs |
| Wheel spindle surface detecting & crash control system (current indicator) |
| Grease type grinding wheel spindle: (Select 2 pc from 8,000~50,000RPM) |
| Hydraulic 8" 3-jaw chuck (w/ solid roary cylinder) |
| MPG handwheel: EGI 2 Axes, EGM 3 Axes control |
| X Axis Heidenhain linear scale (resolution 0.05 um) |
| Electricity cabinet w/ heat exchanger |
| Standard coolant tank 140L |
| Automatic lubrication system |
| 4-color indication signal light |
| Levelling bolts and blocks |
| Tools & tool box |
| Electrical wiring diagram |
| Operation manual & part lists |
| Full-enclosed splash guard |
| Workhead spindle A2-5 |
| Electrical lubricator |
| LED working light |
Optional accessories
| Mitsubishi controller (M80) dressing program: Radius / Taper / Multiple step / form shape |
| Mitsubishi controller (M80) iGrind program |
| Coolant system with magnetic separator & paper filter |
| Coolant system with magnetic separator |
| Coolant system with paper filter |
| CE standard electrical cabinet |
| Electrical cabinet air conditioner |
| Grease type grinding wheel spindle |
| Oil mist type grinding wheel spindle |
| Workhead spindle A2-6 (65mm thru-hole) |
| Manual strong type 7" 3-jaw chuck |
| Oil & mist collecting system |
| Spindle oil mist lubrication system |
| ID auto. gauging device |
| Diamond roller dressing device |
| Dressing sensor system |
| Soft-Jaw turning assembly |
| B axis linear scale w/ digital readout |
| Safety door lock |
Complete one piece cartridge spindle can avoid the eccentricity of spindle housing and reduces the heat increase for spindle longevity.
The spindle head design places the center of gravity at the rear portion to help balancing the whole spindle mechanism to increase spindle accuracy and loading capacity.
Spindle driven by servo motor offers optimum speed and torque performance.
X axis lower slide design offers easy adjustment of
the workhead for grinding parts with different
lengths.
Machine incorporates roller type linear guide ways for X/Z/Y axes for high dynamic rigidity and better loading capacity. This drastically increases the grinding accuracy.
C1 grade precision ball screw with large leading
pitch is used to achieve high accuracy.
Low-gravity base structure, with slant bed design for better coolant draining and grinding swarf removal.
EGM350 series CNC control systems are available for MITSUBISHI* or FANUC**
control. It also can be operated with graphic conversational programming (Option)
Therefore, it eliminates the need for G-code programing, and is easy to learn
and use for grinding operation even for beginners.
Low-gravity base structure and operation panel are designed to meet ergonomic requirement
Combinations of grinding operations for internal, external, end-face, groove, radius,
internal & external step, and taper grinding can be executed in one chucking. Thus,
it greatly increases grinding efficiency and also ensures better concentricity and
accuracies of the ground parts.