Micromatic Grinding Technologies Ltd.

GCE 260-350 External/Universal

Precision Hydraulic Cylindrical Grinders

High Precision External & Universal Cylindrical grinders GC 260/350 are used in diverse production and tool room applications. Robust cast iron box structured design ensures high static and dynamic stability. Some of the standard features of these machines are

Dual-feed rates
Spark-off-timer selection
Single lever control for the fully-automatic-grinding-cycle
Wheel head & Work head having multi lobe hydrodynamic bearing Spindle for better accuracy and long life

Optional accessories like in process gauging makes these machines very cost effective for single operations, high productions.

Swing-down-type-internal-grinding head makes the Universal model an ideal choice for diverse application of various industries.

Note:
Component drawing is must whenever taper grinding is required, both in case of Internal/ External grinding. MGT will study the drawing and provide appropriate solutions.


SPECIFICATION OF GCE 260-350
Capacities	Units	E/U
Swing Diameter	mm	260 / 350
Distance Between Centers	mm	500/ 630/ 800/ 1000/ 1200
Grinding Length	mm	500/ 630/ 800/ 1000/ 1200
Grinding Diameter (max)	mm	200
Maximum Weight Between Center	kg	80
Work Head	Type	Hydrodynamic (U)/Dead center (E)

Wheel Head
Wheel Surface Speed	m/sec	33 (45)
Grinding Wheel ODxID	mm	400x127(U)[500x127(E)]
Grinding Wheel Width	mm	50 (63/80)
Minimum Wheel Size OD	mm	300
Motor Power	kW	3.7 (5.5)

Wheel Slide
Guideway Type		LM (Schneeberger)
Movement		Cam
Slide Stroke	mm	20
Feed Servo Motor torque	Nm	N/A
Rapid Feed Rate (on dia)	m/min	N/A
(Feed back resolution) Minimum Increment/Pulse	mm	0.001

Work Head
Spindle Morse Taper		MT5
Spindle rpm	rpm	56-630 {In 8 steps}
Motor		0.28/0.37

Table
Speed	m/min	0.1-3.5
Swivel Angle	Degree	-3 to 12(500)/ -3 to 11(630)/ -3 to 9(800)/ -2 to 8(1000)/ -1 to 7(1200)
Table Stroke	mm	550/ 680/ 850/ 1050/ 1250
Minimum Increment/Pulse	mm	N/A
Feed Servo Motor Torque	Nm	N/A

Tailstock
Sleeve Morse Taper		MT4
Quill Travel	mm	40

Internal Grinding (only for GCU model)
Spindle Size (rpm)	mm (rpm)	STD-60x250(18000)
		[45x250(30000)]
		[80x250(12000)]

Note:
a) [] Optional b) All specifications and design subject to alteration without notice.