Plunge Type Cylindrical Grinder

Grinding Cycle

1. Plunge grinding

2. Traverse grinding

Both sides feed

LHS feed

RHS feed

3. Plunge

Both sides feed

LHS feed

RHS feed

ID Grinding Cycle (using OD Grinding Cycle)

1. Plunge

2. Traverse

Machine Design Feature

Grinding Sample

Specification

			Compare EGP- 3260	Compare EGP- 32100	Compare EGP- 32150	Compare EGP- 32200	Compare EGP- 32250	Compare EGP- 32300	Compare EGP- 3860	Compare EGP- 38100	Compare EGP- 38150	Compare EGP- 38200	Compare EGP- 38250	Compare EGP- 38300
Grinding Capacity	Swing over table	mm	Ø320	Ø320	Ø320	Ø320	Ø320	Ø320	Ø380	Ø380	Ø380	Ø380	Ø380	Ø380
	Distance between centers	mm	600	1000	1500	2000	2500	3000	600	1000	1500	2000	2500	3000
	Max. grinding daimeter	mm	Ø300	Ø300	Ø300	Ø300	Ø300	Ø300	Ø360	Ø360	Ø360	Ø360	Ø360	Ø360
	Max. load held between center	kg	150	150	150	250	250	250	150	150	150	250	250	250
	Center distance between spindle & slide table	mm	162	162	162	162	162	162	192	192	192	192	192	192
Grinding Wheel	Diameter x Width x Bore	mm	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	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	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	Max. manual swiveling angle	deg	90	90	90	90	90	90	90	90	90	90	90	90
	Spindle speed (infinite variable)	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)
	Motor rated power / max. torque	kw	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		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)
	Center working		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	Ø26	Ø26	Ø26	Ø26	Ø26	Ø26	Ø26	Ø26	Ø26	Ø26	Ø26	Ø26
Tailstock	Tailstock quill travel	mm	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)
Tailstock	Cente taper		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	280	280	280	280	280	280	280	280	280	280	280	280
	Max. rapid feedrate	m/min	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
	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
	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)	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	900	1300	1950	2450	2950	3450	900	1300	1950	2450	2950	3450
	Swiveling angle	deg	±9	±7	±5	±5	±3	±2	±9	±7	±5	±5	±3	±2
	Max. rapid feedrate	m/min	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
	Servo motor rated power	kw	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)
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
	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
	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
	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
Machine	Net Weight (semi-enclosed splash guard)	kg	5600	5900	6300	6700	7100	7500	5700	6000	6400	6800	7200	7600
Machine	Gross weight	kg	6400	6700	7100	7500	7900	8300	6500	6800	7200	7600	8000	8400

Spec Download

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.

CNC Cylindrical Grinder