This KELLENBERGER Kel-Varia cylindrical grinding machine was manufactured in 1995. It features a Kellenberger Kelco 90 control system and a robust internal grinding device with a B-axis for a tiltable grinding head. The machine supports a tip height of 175 mm and a tip width of 1,000 mm, equipped with a belt filter system. Ideal for precision grinding tasks. Contact us for more information about this machine.
Location: DE
Capacity: Center height 175 mm; between centers 1000 mm
Configuration: Internal grinding device; B-axis tiltable grinding head
Grinding heads available: R, RS, UR
R head pivot: +30°
Manual indexing: 180° to -190°, 2.5° steps
Automatic indexing: 180° to -90° (or -30°), 2.5° steps
B-axis (RS/UR heads): pivot +180° to -190° (some variants limited to about +30°); resolution 0.1"
Standard workhead (C-axis): pivot -30° to +120°
Mounting taper: MK5; reduction sleeve MK5/MK4
Adapter flange: MK5 / DIN 55027 size 5
Torque capacity: 160 Nm
Max workpiece between centers: 150 kg
C-axis pivot: 30° to +120°
Taper: MK4
Quill stroke: 50 mm
Micro-adjust (option): ±150 µm (±0.006 in)
Left wheel max: 400 × 63 mm
Right wheel max (option): 400 × 50 mm
Max peripheral speed: 32 m/s
Wheel max: 500 × 100 mm
Mounting bore for high-performance spindles (HJN): 80 mm
Mounting bore for high-frequency spindles (MFV): 120 mm
Max speed: 15 m/min
Resolution: 0.1 µm
Travel (1000 mm between centers version): 1150 mm
Upper table swivel range (1000 mm between centers): 0 to +9°
Max travel: 320 mm
X-axis slide: 0.94 kW (2000 min⁻¹)
Z-axis table: 0.94 kW (2000 min⁻¹)
Indexing / B-axis: 0.63 kW (3000 min⁻¹)
Grinding spindle UR: 4.4 kW @ 50 Hz (3000 min⁻¹) / 5.2 kW @ 60 Hz (3600 min⁻¹)
Grinding spindle R/RS (7.5 kW version): 7.5 kW @ 50 Hz (1500 min⁻¹) / 9 kW @ 60 Hz (1800 min⁻¹)
Grinding spindle R/RS (9.2 kW version): 9.2 kW @ 50 Hz (1500 min⁻¹) / 11 kW @ 60 Hz (1800 min⁻¹)
Workhead (standard & rotating): 3.1 kW (3000 min⁻¹)
Hydraulic pump: 0.37/0.44 kW (1500/1800 min⁻¹)
Hydrostatic pump: 0.37/0.44 kW (1500/1800 min⁻¹)
Floor space (L × W): 3600 × 2000 mm
Minimum air pressure: 4 bar
Noise emission: 70 dB(A)
Grinding head and B-axis
RS/UR heads
rotating part indexing
Workhead
Workhead with rotating spindle
Spindle speed: 5–500 rpm (stepless)
Mounting taper: MK5
Torque capacity: 320 Nm (incl. clamping device)
Max workpiece between centers: 220 kg
Tailstock
Grinding wheels and internal grinding
UR head
R head
Max peripheral speed: 32 m/s with 7.5 kW motor
45 m/s with 9.2 kW motor
RS head
Wheel max: 500 × 80 mm
Max peripheral speed: 32 m/s with 7.5 kW motor
45 m/s with 9.2 kW motor
Internal grinding (option/device on this machine)
Axes and tables
Z-axis (lower table)
X-axis (grinding slide)
Max speed: 7.5 m/min
Resolution: 0.1 µm
Drive motors
Dimensions
weight
utilities (1000 mm between centers version)
Additional equipment
Belt filter coolant system