Fischer Spindle Motor Spindles and Milling Heads

Fischer Spindle Group (Switzerland, since 1939) builds milling, drilling and grinding motor spindles, milling heads, tooling and lubrication units, with around 400 people at five locations worldwide.

High-speed motor spindles up to HSK-40

FISCHER high-speed milling motor spindles have outside diameters of 35–140 mm and HSK-15 to HSK-40 tool interfaces. Grease-lubricated bearings run up to 65,000 rpm, oil-air lubricated bearings up to 90,000 rpm. Types include MLW-360/4 S, MFW-650 and MFW-1060/90.

Diameter 35–140 mm
Grease: up to 65,000 rpm
Oil-air: up to 90,000 rpm
Interfaces HSK-15 to HSK-40

Compact motor spindles HSK-50 to HSK-100

FISCHER compact milling spindles have outside diameters of 140–230 mm and HSK-50 to HSK-100 tool interfaces. Oil-air lubricated bearings run up to 40,000 rpm, grease-lubricated bearings up to 24,000 rpm. A vibration sensor detects imbalance; types: MFW-1709/24 and MFW-2309/20.

Diameter 140–230 mm
Oil-air: up to 40,000 rpm
Grease: up to 24,000 rpm
Interfaces HSK-50 to HSK-100

Powerful motor spindles HSK-63 to HSK-125

FISCHER powerful and robust motor spindles for heavy-duty cutting have outside diameters of 240–360 mm, HSK-63 to HSK-125 interfaces, up to 200 kW and up to 1,000 Nm. Type MFW-3601/08 is 360 mm in diameter; an integrated dilation sensor enables length compensation on the machine.

Diameter 240–360 mm
Power up to 200 kW
Torque up to 1,000 Nm
Interfaces HSK-63 to HSK-125

MFW drilling motor spindles

FISCHER drilling spindles are high-torque motorized spindles with high axial stiffness for large drilling forces. MFW-1220 and MFW-1206/20 (120 mm) reach 20,000 rpm, MFW-1303/12 (130 mm) reaches 12,000 rpm, and MFW-1309/24 reaches 24,000 rpm with 27.3 kW in S1 duty.

Diameter 120–130 mm
Speed up to 24,000 rpm
S1 power up to 27.3 kW
Grease-lubricated bearings

Grinding and dressing spindles

FISCHER spindles cover internal and external grinding, dressing and profiling of grinding wheels, tool grinding and glass processing. Deep hole spindles reach a diameter/length ratio of 1:20, tool grinding spindles use HSK-E50/F63 automatic clamping, automatic balancing is optional.

Deep holes: ratio up to 1:20
Tool clamping HSK-E50/F63
Wheel dressing and profiling
Belt drive: UJ and HJN arbors

S19i and D17–D27 milling heads

FISCHER milling heads with C and A axes form a 5-axis system with a milling spindle: the single-arm S19i and the D17, D19, D21, D23 and D27 heads. The C-axis moves ±360°, the A-axis ±110° or ±120°. D27 axes have 6,000 Nm clamping torque and absolute optical measuring with EnDat 2.2.

C-axis ±360°
A-axis up to ±120°
Axis clamping up to 6,000 Nm
Encoder interface EnDat 2.2

Arbors, collets and wheel flanges

FISCHER tooling for grinding spindles: HJND, MFND, HSK-C and UJD arbors, HJNZ, UJZ, SK and HSK collet chucks, type D, DD, ER, EX, ZP and ISO collets, arbor extensions, grinding wheel flanges and face grinding mandrels, balanced drive pulleys and spindle holders.

Arbors HJND, MFND, UJD
Collets D, DD, ER, ZP
Grinding wheel flanges
Balanced drive pulleys

Lubrication, shaft cooling and filters

FISCHER spindle peripherals: oil-air central lubrication units with a level-controlled pump, oil-air dosing units for oil metering to the bearings, the CSC shaft cooling unit, ALF 310 and ALF 510 exhaust air filters, and motor chokes for PWM frequency inverters.

Dosing unit SFJ 4G: 4 injectors
Filters ALF 310 and ALF 510
CSC shaft cooling unit
Pump with level control

Selecting a FISCHER motor spindle

FISCHER milling motor spindles are selected by tool interface, speed and power: high-speed spindles of 35–140 mm with HSK-15 to HSK-40 reach 90,000 rpm with oil-air lubrication, compact spindles of 140–230 mm with HSK-50 to HSK-100 reach 40,000 rpm, and powerful spindles of 240–360 mm deliver up to 200 kW and 1,000 Nm.

For drilling, MFW-1220 and MFW-1309/24 offer high axial stiffness and up to 24,000 rpm. For grinding, FISCHER builds spindles for internal and external grinding, wheel dressing, tool grinding and glass processing.

For 5-axis machining, the S19i and D17–D27 milling heads work as a system with the spindle.

FISCHER manufacturing and service

FISCHER was founded in 1939 by Ernst Fischer and Werner Stohler. The holding company FISCHER Spindle Group AG was founded in 2009 and is headquartered in Herzogenbuchsee, Switzerland; the group employs around 400 people at five locations worldwide.

FISCHER Taiwan in Taichung, founded in 2017, develops and produces the milling heads.

Spindle and milling head repairs are handled by group service centres in Switzerland, Germany, the USA, China and Taiwan. In 2026 the spindle maker Robert Renaud joined the group; the Boudry site is being expanded as the European service centre FISCHER Spindle Service SA.

FISCHER USA in Racine, Wisconsin, has been part of the group since 2006.

Fischer Spindle and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Fischer Spindle and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.