Cylindrical Grinder

OCA-3235 / 3265 / 3295

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OCA

CNC Series

350 / 650 / 950 mm

Distance between centers

Ø320 mm

Swivel over table

Ø610 x 150 x Ø203.2 mm

G.W. size

INTRODUCTION

The CNC Cylindrical Grinder Angular Wheelhead (angular grinding) heavy duty type is designed with high efficiency, high accuracy and maximum operational convenience in mind.

The machine structure design fully meets ergonomic theorem for user-friendly operations. Rigid and stable construction, as well as a special wheel spindle design are combined with advanced CNC control to make cylindrical grinding easier and more accurate than ever before.

FEATURES

Angular type wheel seat

Independent hydraulic and lubrication system, with hydro-static slide ways and high precision ball screws to ensure ultra high positioning accuracy.

Wheel spindle hydro-static bearing

The hybrid hydro-static bearings are used for the wheel spindle. Metal-to-metal contact will never occur with these highly rigid bearings design and also avoid vibration.

G.W. Dressing

X and Z Axis simultaneous movement may dress the wheel in specific shape for multiple-step grinding purpose.

Rigid work spindle head

The rigid constructed spindle head employs high precision bearings assuring maximum spindle stability. It guarantess outstanding accuracy for external and face grinding.

VIDEO

CYLINDRICAL GRINDER

SPECIFICATIONS

Model	OCA-3235	OCA-3265	OCA-3295
Capacity
Swivel over table	Ø320 mm
Distance between centers	350 mm	650 mm	950 mm
Max. external grinding diameter	Ø300 mm
Max. load of centers	150 kgs
Grinding wheel
O.D. x width x I.D.	Ø610 x 150 x Ø 203.2 mm
Linear velocity	45 M/s
Grinding wheel head
Auto. rapid advance	10 m/min
Max. stroke	360 mm
Min. setting unit	0.001 (0.0001) mm
Table
Auto. rapid advance	10 m/min
Max. stroke	750 mm	1200 mm	1200 mm
Min. setting unit	0.001 (0.0001) mm
Swivel angle	-1° ~ 10°	-1° ~ 8°	-1° ~ 6°
Work spindle head
Swivel angle	0° ~ +90°
Center taper	M.T. No. 4
Spindle speed (variable)	0~300 r.p.m.
Max. load of spindle (tool holder included)	35 kgs
Tailstock
Taper center	M.T. No. 4
Stroke	25 mm
Fine adjustment range	±0.03 mm
Motor
Wheel spindle	11 kW
Workhead spindle	0.37 kW (4P)
Wheelhead feed	0.37 kW (4P)
Table feed	1.8 kW (AC Servo Motor)
Hydro-static hydraulic pump	0.37 kW (4P)
Wheel spindle lubrication pump	0.18 kW (4P)
Coolant pump	0.37 kW (2P)
Ballscrew lubrication	Auto lubricator (LUBE)
Tank Capacity
Wheel spindle lubricant tank	31 L
Lubrication fluid tank	31 L
Hydraulic tank	31 L
Ballscrew lubrication tank	0.7 L
Coolant tank	230 L
Machine weight
New weight	5600 kgs	6800 kgs	8000 kgs