CNC Cylindrical Grinders EGA Series

Description

Standard accessories

• Infinite variable workhead w/ servomotor
• Diamond dresser & dresser stand
• Automatic wheel speed change (15 levels)
• Carbide tipped centre
• X-axis Heidenhain linear scale (resolution 0.05 μm)
• Levelling bolts and blocks
• Operation manual & Parts list
• Control system: Fanuc 0i-TF
• Grinding wheel & Wheel flange
• Standard oil cooler w/ cooling fan
• Standard coolant tank 140 L
• MPG handwheel: 2-axes control
• Touch probe
• LED working light
• Tools & Tool box
• Electrical cabinet w/ heat exchanger
• Semi-enclosed splash guard
• Wheel extractor
• 4-colour indication signal light
• Electrical wiring diagram

Optional accessories

• BS VM25 Integration system (incl. OD gauging, Gap & Crash control device, Dynamic balance system)
• BS VM15 Integration system (incl. OD gauging, Gap & Crash control device, Dynamic balance system)
• Hydraulic tailstock w/ foot pedal
• Z-axis Heidenhain linear scale (resolution 0.05 μm)
• Grinding wheel manual 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
• Automatic gauging device
• Coolant system w/ magnetic separator & paper filter
• Coolant system w/ magnetic separator
• Coolant system w/ paper filter
• Oil mist collecting system
• Spare grinding wheel flange
• Full-Carbide centre tip
• FANUC 0i-TF iGrind program
• Mitsubishi controller (M80) iGrind program
• Electrical cabinet air conditioner
• 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, 2 pcs/set
• 2-point steady rest
• 3-point steady rest
• 3-jaw scroll chuck
• 4-jaw scroll chuck

Technical parameters Cylindrical CNC Grinder EGA Series

Model			EGA-25*	EGA-32**	EGA-38***	EGA-50****
Grinding capacity	Swing over table	mm	Ø 250	Ø 320	Ø 380	Ø 500
	Distance between centres	mm	500	600/1 000/1 500/2 000
	Max. grinding diameter	mm	Ø 230	Ø 300	Ø 360	Ø 480
	Max. grinding length – dresser on workhead side	mm	350	450/850/1,350/1,850
	Max. grinding length – dresser on tailstock side	mm	500	600/1,000/1,500/2,000
	Max. load held between centre	kg	80	150/150/150/250
	Centre distance between spindle & slide table	mm	130	162	192	255
Grinding wheel	Infeed angle		60°	60°	60°	60°
	diameter x width x bore	mm	Ø 455 x 50 x Ø 127 (5")	Ø 510 x 50 − 100 x Ø 152.4 (6") (Ø 610 x 50 ~ 100 x Ø 203.2 (8") opt.)
	Motor rated power / max. torque	kW/Nm	3.75/13	7.5/49 (11/71 opt.)
	Wheel speed	rpm	1,400	1,250 (1,650 opt.)
Workhead	Swiveling angle		90°	90°	90°	90°
	Spindle speed	rpm	10 ~ 600	10 ~ 600	10 ~ 600	10 ~ 600
	Servomotor rated power	kW	0.75	1.5	1.5	1.5
	Centre taper		MT3 (MTK opt.)	MT4 (MT5 opt.)	MT4 (MT5 opt.)	MT4 (MT5 opt.)
	Spindle type		fixed or rotatory	fixed or rotatory	fixed or rotatory	fixed or rotatory
	Bore diameter	mm	Ø 20	Ø 26	Ø 26	Ø 26
Tailstock	Quill travel	mm	25	25 (50/75 opt.)	25 (50/75 opt.)	25 (50/75 opt.)
	Centre taper		MT3 (MT4 opt.)	MT4 (MT5 opt.)	MT4 (MT5 opt.)	MT4 (MT5 opt.)
X-axis	Travel	mm	200	280	280	280
	Rapid feed rate	m/min	6	6	6	6
	X-axis Heidenhain linear scale	μm	0.05	0.05	0.05	0.05
	Min. increment	mm	0.0001	0.0001	0.0001	0.0001
	Servomotor rated power	kW	1.5	2.2	2,2	2.2
Z-axis	Travel	mm	750	900/1,300/1,950/2,450
	Swiveling angle		±7°	±9°/±7°/±5°/±5°
	Max. rapid feed rate	m/min	8	10	10	10
	Min. increment	mm	0.0001	0.0001	0.0001	0.0001
	Servomotor rated power	kW	1.5	2.2 − 3.5	2.2 − 3.5	2.2 − 3,.5
Motor	Hydraulic motor	kW	0.38	0.38	0.38	0.38
	Hydrodynamic grinding wheel spindle lubrication pump	kW	0.2	0.2	0.2	0.2
	Guideway lubrication pump	kW	0.2	0.2	0.2	0.2
	Coolant pump	kW	0.2	0.2	0.2	0.2
Machine	Net weight (semi-enclosed splash guard)	kg	3,100	5,600 − 6,700
	Gross weight	kg	3,500	6,420 − 8,200

* Available versions: EGA-2550
** Available versions: EGA-3260, EGA-32100, EGA-32150, EGA-32200
*** Available versions: EGA-3860, EGA-38100, EGA-38150, EGA-38200
**** Available versions: EGA-5060, EGA-50100, EGA-50150, EGA-50200

Grinding cycles – EGA Series

ID Grinding cycle (using OD Grinding cycle)