Standard grinding cycles and multi-steps graphic
Inner through hole
2 steps straight hole
Inner through hole + outer end-face (gear tip)
Inner blind hole + Inner end-face
Inner taper
Multi-process in one-stop (EGM-350T)
Inner blind hole + ID chamfer
Inner radius grooving
Inner through hole + Inner radius
Multi-step grinding
Profile grinding
Inner diameter + End surface
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
| Compare
EGM-350T CNC |
|||
|---|---|---|---|
| General Capacity | Max. grinding ID | mm | φ300 |
| Max. grinding OD | mm | φ400 | |
| Swing over workhead | mm | φ500 | |
| Max. grinding depth | mm | 260 | |
| Max. weight of workpiece | kg | 50 | |
| Max. length of workpie | mm | 300 | |
| Type of workhead | Dual indenpendent wheelhead | ||
| Workhead(X axis) | 3-Jaw chuck | Manual -8"/10"(opt.) | |
| Swiveling angle range | deg | +15°~ -5° | |
| Manual travel distance(toward Z axis) | mm | 250 | |
| Spindle speed | rpm | 0～1000(Variable speed) | |
| Servo motor rated power | kW | Build-in-spindle 1.8(F)/2.2(M) | |
| Wheelhead(Y axis) | OD grinding wheel size | mm | N/A |
| ID grinding wheel size | mm | φ100 | |
| Max. spindle speed | rpm | 30000(std.) | |
| Spindle motor/ max. torque | kW/Nm | 7.5kW / 6Nm | |
| Tool Magazine(Y axis) | Tool holder | BBT30 | |
| Tool Magazine capacity | Qty. | 8 | |
| Max. tool lenght | mm | 100 | |
| Max. tool weight | kg | 3 | |
| Wheelhead(Z axis) | OD grinding wheel size | mm | φ100 |
| ID grinding wheel size | mm | N/A | |
| End face grinding wheel Sub Axis(Opt.Z2) | mm | N/A | |
| Max. spindle speed | rpm | 20,000(std.) | |
| Spindle motor/ max. torque | kW/Nm | 3.75kW / 13Nm | |
| X axis | Travel | mm | 420 |
| Rapid feedrate | mm/min | 8 | |
| Heidenhain linear scale resolution | um | 0.05 | |
| Min. increment | mm | 0.0001 | |
| Servo motor rated power | kW | Build-in-spindle1.8(F)/2.2(M) | |
| Y axis | Travel | mm | 350 |
| Rapid feedrate | mm/min | 8 | |
| Min. increment | mm | 0.0001 | |
| Servo motor rated power | kW | Build-in-spindle 1.8(F)/2.2(M) | |
| Z axis | Travel | mm | 350 |
| Rapid feedrate | m/min | 8 | |
| Min. increment | mm | 0.0001 | |
| Servo motor rated power | kW | Build-in-spindle 1.8(F)/2.2(M) | |
| Motor | Hydraulic motor | kW | 0.75 |
| Lube pump | kW | N/A | |
| Coolant pump | kW | 0.37+0.18 | |
| Machine | Net weight | kg | 5800 |
| Gross weight | kg | 6300 | |
| Packing size (L x W x H) | mm | 3500x2250x1950 |
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 life.
Spindle driven by servo motor offers optimum speed and torque performance.
Low-gravity base structure, with slant bed design for better coolant draining and grinding swarf removal.
The spindle we choose is BBT30 built-in type ATC spindle with 7.5kw and 30,000RPM. The tool magazine is driven by precision hydraulic slide, and can be equipped up to 8 tools in max., according to the size of the wheel.