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Cylindrical Grinder

Plunge Type Cylindrical Grinder

EGP CNC Series

Grinding Cycle

1. Plunge grinding
1. Plunge grinding
2. Traverse grinding
2. Traverse grinding
Both sides feed
Both sides feed
LHS feed
LHS feed
RHS feed
RHS feed
3. Plunge
3. Plunge
Both sides feed
Both sides feed
LHS feed
LHS feed
RHS feed
RHS feed

ID Grinding Cycle (using OD Grinding Cycle)

1. Plunge
1. Plunge
2. Traverse
2. Traverse

Machine Design Feature

Grinding Sample
Specification

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EGP- 2550
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EGP- 3260
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EGP- 32100
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EGP- 32150
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EGP- 32200
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EGP- 32250
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EGP- 32300
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EGP- 3860
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EGP- 38100
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EGP- 38150
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EGP- 38200
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EGP- 38250
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EGP- 38300
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EGP- 5060
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EGP- 50100
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EGP- 50150
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EGP- 50200
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EGP- 50250
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EGP- 50300
Grinding Capacity Swing over table mm Ø250 Ø320 Ø320 Ø320 Ø320 Ø320 Ø320 Ø380 Ø380 Ø380 Ø380 Ø380 Ø380 Ø500 Ø500 Ø500 Ø500 Ø500 Ø500
Distance between centers mm 500 600 1000 1500 2000 2500 3000 600 1000 1500 2000 2500 3000 600 1000 1500 2000 2500 3000
Max. grinding daimeter mm Ø230 Ø300 Ø300 Ø300 Ø300 Ø300 Ø300 Ø360 Ø360 Ø360 Ø360 Ø360 Ø360 Ø480 Ø480 Ø480 Ø480 Ø480 Ø480
Max. load held between center kg 80 150 150 150 250 250 250 150 150 150 250 250 250 150 150 250 250 250 250
Center distance between spindle & slide table mm 130 162 162 162 162 162 162 192 192 192 192 192 192 255 255 255 255 255 255
Grinding Wheel Diameter x Width x Bore mm Ø455x50xØ127(5")
Opt.Ø455x50xØ152.4(6")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Ø510x50-100xØ152.4(6")
Opt.Ø610x50~100xØ203.2(8")
Motor rated power / max. torque Kw/Nm 3.75kw / 13Nm 7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
7.5kw/49Nm
(Opt.11Kw/ 71Nm)
Wheel speed rpm 1400 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) 1250 (Opt.1650) - 1250 (Opt.1650) 1250 (Opt.1650)
Workhead Swiveling angle deg 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
Spindle speed rpm 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable) 10~600 (infinite variable)
Servo motor rated power kw 0.75 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
Center taper MT3(Opt.MT4) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5)
Spindle type Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary Fixed or Rotary
Diameter of bore mm Ø20 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26 Ø26
Tailstock Quill travel mm 25 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75) 25 (Opt.50/75)
Cente taper MT3(Opt.MT4) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5) MT4 (Opt. MT5)
X axis Travel mm 200 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280
Rapid feedrate m/min 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
Heidenhain linear scale resolution um 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
Min. increment mm 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001
Servo motor rated power Kw 1.2(F)/1.5(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M)
Z axis Travel mm 750 900 1300 1950 2450 2950 3450 900 1300 1950 2450 2950 3450 900 1300 1950 2450 2950 3450
Swiveling angle deg ±7 ±9 ±7 ±5 ±5 ±3 ±2 ±9 ±7 ±5 ±5 ±3 ±2 ±9 ±7 ±5 ±5 ±3 ±2
Max. rapid feedrate m/min 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
Min. increment mm 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001
Servo motor rated power kw 1.2(F)/1.5(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 2.5(F)/3.5(M) 2.5(F)/3.5(M) 2.5(F)/3.5(M) 2.5(F)/3.5(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 2.5(F)/3.5(M) 1.8(F)/2.2(M) 2.5(F)/3.5(M) 2.5(F)/3.5(M) 1.8(F)/2.2(M) 1.8(F)/2.2(M) 2.5(F)/3.5(M) 2.5(F)/3.5(M) 2.5(F)/3.5(M) 2.5(F)/3.5(M)
Motor Hydraulic motor Kw 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
Hydrodynamic GW spindle lubrication pump kw 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
Guide way lubrication pump kw 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
Coolant pump Kw 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
Machine Net Weight (semi-enclosed splash guard) kg 3100 5600 5900 6300 6700 7100 7500 5700 6000 6400 6800 7200 7600 5800 6100 6500 6900 7300 7700
Gross weight kg 3800 6400 6700 7100 7500 7900 8300 6500 6800 7200 7600 8000 8400 6600 6900 7300 7700 8100 8500
Standard accessories
Infinite variable workhead w/servo motor
Diamond Dresser and Stand
Automatic wheel speed change (15 steps)
Carbide tip center
X Axis Heidenhain linear scale (resolution 0.05 um)
Levelling bolts and blocks
Operation manual and part lists
Fanuc CNC Controller (Oi 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 Heidenhain 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 filter
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 iGrind program
Mitsubishi controller (M80) iGrind program
Electrical cabinet air conditioner
Interanl grinding attachment (for EGP series only)
Workhead upgrade to MT5 (not suitable for 25 series)
Tailstock upgrade to MT5 (not suitable for 25 series)
Roller type balancing stand/ arbor
Automatic 3-jaw hydraulic chuck
CE standard electrical cabinet
Touch probe
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.

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.

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. Features

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.

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.