Cylindrical grinding machine

Karstens Generalüberholt K19 CNC 650

Centre height: 181 mm
Centre distance: 650 mm
Maximum grindable workpiece diameter: 360 mm
Max. load between centres (cantilevered): 1000 N (100 kg)
Max. load between centres: 3000 N (300 kg)

Z-axis:
Table swivel angle: 10°
Table drive, hydraulic: 0-4 m/min

X-axis:
Infeed spindle travel: 80 mm
Rapid traverse (hydraulic): 50 mm
Coarse adjustment (air cushion): 280 mm
Feed drive by DC motor
Rapid feed rate: 48 mm/min/Ø
Feed process: plunge grinding / longitudinal grinding
4 preselectable feed rates: mm/min/Ø 0.01–48
4 preselectable infeed amounts: mm 0.001–0.1
Spark-out time, oscillation grinding: 0–99 s / 0–99 strokes
Tapping infeed: mm/Ø 0.001

Grinding spindle headstock: universal, swiveling: 0–180°
Grinding wheel (external): D x b x d (mm) 500x100x127 or 203.2
Grinding wheel (face - option): D (mm) 250x32x76.2
Grinding wheel (internal - option): D (mm) (2–250)
Drive power, external/face: kW 5.5 (7.5)
Drive power, internal: kW 2.2
Peripheral speed, external: m/s 35 (50)
Grinding wheel wear (external): mm/Ø 160
Guard width: 100 mm
Grinding spindle diameter: 60 mm
Internal spindle mounting: 80 (100) mm

Workpiece headstock:
Stepless variable drive: Mk 4, 1/mm 30–270 / 50–450
Workpiece spindle fixable
Spindle bore: MK 4/24 mm
Spindle nose for flange mounting: MK 4 mm cylindrical Ø63H6 x 6
Workpiece headstock swivel on rotary part: 0–90°

Tailstock:
Quill mounting / quill diameter: MK 4 / 75 mm
Quill stroke: 45 mm
Quill force: 100–800 N / 250–1400 N adjustable
Quill actuation: manual (foot switch)
Quill fine adjustment: ±40 µm

Connections:
Total connected load (machine): 6.5–10 kW
Grinding spindle headstock: 5.5 (7.5) kW
Workpiece headstock: 0.55 (1.1) kW
Coolant filtration: 0.75–2.2 kW
Guideway lubrication pump: 0.1 kW
Hydraulic pump: 1.5 kW
Hydraulic tank: 80 L
Pneumatics: 6 bar
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Comparable machines: Weiss / EMAG / GP cylindrical grinders / Studer / Kellenberger / Schaudt / Tschudin / Tacchella / Dannobat

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