HF 80 S 40
S1:2.5 kW


Oil-air min-1 50.000

CC-Grease min-1 50.000

Grease min-1 40.000


Power S6-40% kW 3,2

S1-100% kW 2,5

Speed S6-40% Nm 0,6

S1-100% Nm 0,5

Qty. of bearings 4



SKI 20 ( ≤ 10.0mm)

(B)BT / SK B -

Capto Y -

Collet S ER16 ( ≤ 10.0mm)

Grinding arbor D M10 / Ø11

Spindle Ø mm 80

Spindle length mm 246,1

Spindle weight kg 7,1

Motor voltage / Poles V 220 / 2

Spindle cooling ~O~ / 28°C

Options F-G-H-I-K-Mn-P-V-W

Encoder V optional


All spindle parts are hardened and ground for a high spindle lifetime. Joining elements are inherently safe and force-fit with ground threads. The shaft and all rotating parts are balanced less G1 for best vibration result (< 1mm/s). The water cooling through the spindle housing up to the spindle nose guarantees a constant operating temperature. The rear ball bearing package is installed in a bearing bush for thermal compensation to the spindle end. For high axial stiffness and damping the rear bearing package and bearing bush are pre forced with springs. A concentric and axial runout less 1µm assures high process quality. Grease-packed ball bearings with close bearing cages to keep the grease at the balls. No uncontrolled maintaining necessary. Ball bearings for higher speed are either lubricated with minimum quantity oil-air lubrication or direct-bearing lubrication for less consumption and less friction. All HF or HT motors are equipped with winding protection and give highest performance with less lost effect. A motor thermistor (KTY or PTC) is standard and avoids a motor overheating. Air seal and a labyrinth seal provide a sufficient protection against dirt and humidity in the spindle.

Many optional monitoring systems for process surveillance are available.