ID Grinder

EGM-350L Dual Spindle Grinder

EGM-350L Dual Spindle Grinder

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Feature

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.

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.

Grinding Example

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

 

Inner blind hole + ID chamer

Inner radius groovin

Inner through hole + Inner radius

Multi-step grinding

Profile grinding

Form grinding

Specification

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Model EGM-350 CNC EGM-350L CNC EGM-450 CNC
General capacity  
Max. grinding ID φ15.7" φ11.8" φ15.7"
Max. grinding OD φ15.7" φ12.9" φ15.7"
Swing over workheads φ19.6" φ13.3" φ16.1"
Max. grinding depth 10.2" 10.2" 10.2"
Max. weight of workpiece 110 Lbs. 661 (w/ steady rest) Lbs. 110 Lbs.
Max. length of workpiece 11.8" 29.5" 11.8"
Type of workhead Dual indenpendent wheelhead Dual indenpendent wheelhead Dual indenpendent wheelhead
Workhead (X Axis)  
3-Jaw chuck Hydraculic - 8"/10"(opt.) Manual - 8"/10"(opt.) Hydraculic - 8"/10"(opt.)
Swiveling angle range +15°~ -5° +15°~ -5° +15°~ -5°
Manual travel distance (toward Z axis) 9.8" 21.6" 9.8"
Spindle speed (infinite variable) 0~1000 (Variable speed) rpm 0~1000 (Variable speed) rpm 0~1000 (Variable speed) rpm
Servo motor rated power 1.8(F)/2.2(M) kw 1.8(F)/2.2(M) kw 1.8(F)/2.2(M) kw
Grinding weelhead(Y axis)  
OD grinding wheel size N/A N/A φ16"x2"xφ5"
ID grinding wheel size φ3.9" φ3.9" N/A
Max. spindle speed 10,000 (std.) rpm 10,000 (std.) rpm 10,000 (std.) rpm
Spindle motor/ max. torque 3.75Kw / 13Nm 3.75Kw / 13Nm 3.75Kw / 26Nm
Grinding Wheelhead (Z axis)  
OD grinding wheel size φ3.9" φ3.9" N/A
ID grinding wheel size N/A N/A φ3.9"
End-Surface grinding spindle (Opt.Z2) N/A N/A N/A
Max. spindle speed 20,000 (std.) rpm 20,000 (std.) rpm 20,000 (std.) rpm
Spindle motor/ max. torque 3.75Kw / 13Nm 3.75Kw / 13Nm 3.75Kw / 13Nm
X axis  
Travel 16.5" 16.5" 17.7"
Rapid feedrate 314" In/min 314" In/min 314" In/min
Heidenhain linear scale resolution 0.000002" 0.000002" 0.000002"
Min. increment 0.000010" 0.000010" 0.000010"
Servo motor rated power 1.8(F)/2.2(M) Kw 2.5(F)/3.0(M) Kw 1.8(F)/2.2(M) Kw
Y axis  
Travel 13.7" 13.7" 13.7"
Rapid feedrate 314" In/min 314" In/min 314" In/min
Min. increment 0.000010" 0.000010" 0.000010"
Servo motor rated power 1.8(F)/2.2(M) Kw 1.8(F)/2.2(M) Kw 1.8(F)/2.2(M) Kw
Z axis  
Travel 13.7" 13.7" 13.7"
Rapid feedrate 314" In/min 314" In/min 314" In/min
Min. increment 0.000010" 0.000010" 0.000010"
Servo motor rated power 1.8(F)/2.2(M) Kw 1.8(F)/2.2(M) Kw 1.8(F)/2.2(M) Kw
Motor  
Hydraulic motor 0.75 Kw 0.75 Kw 0.75 Kw
Coolant pump 0.37+0.18 Kw 0.37+0.18 Kw 0.37+0.18 Kw
Machine  
Net weight 12786 Lbs. 14990 Lbs. 13890 Lbs.
Gross weight 13890 Lbs. 16100 Lbs. 14990 Lbs.
Packing size (L x W x H) 132"x88"x77" 159"x88"x77" 132"x88"x77"

Accessories

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
Workhead spindle A2-6 (2.55" thru-hole)
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
Standard coolant tank 140L
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
Safety door lock
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

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