Cylindrical grinding machine

GIORIA R 162x4000

Main Technical Features
Technical / Dimensional Data
Max. swing diameter over bed: 900 mm
Max. grinding diameter (with new wheel): 820 mm
Max. grinding length: 4000 mm
Max. static workpiece weight on steadies: 3,000 kg
Max. workpiece weight in chuck: 300 kg
(max. overhang 250 mm from spindle nose)
External grinding wheel dimensions (Ø × width × bore): 915 × 100 × 305 mm
Peripheral speed of grinding wheel: 45–60 m/s
Plunge grinding feed rate roughing: 0.5–50 mm/min
Plunge grinding feed rate fine: 0.001–0.01 mm/min
Longitudinal grinding feed rate roughing: 0.01–0.05 mm/min
Longitudinal grinding feed rate fine: 0.001–0.01 mm/min
Machine length: 9,200 mm
Machine width: 3,800 mm
Machine height: 2,630 mm
Total weight (approx.): 25,800 kg
Max. noise level with motors running: 80 dB

Workhead
Centre angle: 60°
Quill taper: Morse 6
Spindle mounting: ASA 6
Spindle motor power (S1): 22 kW
Speed range: 3–250 rpm

Electric Tailstock
Centre angle: 60°
Quill taper: Morse 6
Total quill stroke (stroke + centre eject): 78 + 15 mm
Force transducer (maximum display value): 10,000 kg
Quill adjustment motor: 6.1 Nm
Tailstock body longitudinal displacement motor: 0.18 kW

Grinding Wheel Dimensions
Outer diameter: 915 mm
Width: 100 mm
Bore: 305 mm
Max. wheel width: 130 mm
Min. permissible wheel diameter (worn wheel): 630 mm

Grinding Slide / Feed Axes
Peripheral speed of grinding wheel: 45–60 m/s
Max. grinding spindle speed: 2,000 rpm
Grinding spindle drive (brushless, AC): 37 kW
Cross-axis X – servomotor (brushless): 7 Nm
Cross-axis X – rapid traverse manual: 7,000 mm/min
Cross-axis X – rapid traverse automatic: 10,000 mm/min
Cross-axis X – travel: 510 mm
Longitudinal axis Z – servomotor (brushless): 14.7 Nm
Longitudinal axis Z – rapid traverse manual: 7,000 mm/min
Longitudinal axis Z – rapid traverse automatic: 15,000 mm/min
Longitudinal axis Z – travel: 4,300 mm
Auxiliary slide Z2 (taper grinding) – servomotor: 7 Nm
Z2 – rapid traverse manual/automatic: 7,000 mm/min
Z2 – travel: 360 mm
Grinding head swivel B-axis: ±7°
B-axis fast swivel speed manual: 0.3 mm/rev
B-axis fast swivel speed automatic: 0.4 mm/rev
B-axis drive (brushless, with gearbox): 2.15 Nm

Standard Equipment
CNC control Siemens Sinumerik 840D, PCU50, Windows XP Pro SP2
Marposs E82 gap control safety device
Hydraulic power unit for various machine functions
Hydraulic unit for automatic lubrication
Oil unit for hydrodynamically mounted grinding spindle
Hydrodynamic grinding spindle
Electric tailstock with force transducer and digital display of contact force
1 grinding wheel flange Ø 305 mm
2 dead centers with carbide, Morse 6, with extraction nut
Balancing arbor for grinding wheel
Tie rod and mounting brackets for machine anchoring
Modem for remote access and data transfer from the CNC
Service tool set
Geometry inspection protocol
Lodpfjxni Sijx Ad Ejhn
Hook for wheel change
Glass linear scale on X-axis (additional backup encoder)
Optical rotary encoder for B-axis angular positioning

Optional Equipment (included in scope of delivery)
Raised center height 450 mm
1 additional grinding wheel flange Ø 305 mm
Special grinding head for taper grinding in longitudinal grinding mode

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