External grinding spindle
CBN-
External grinding spindle
High-performance external grinding spindle
External grinding spindle for 1-2 grinding wheels
External grinding
spindle to the sgrinding
from Brake disks
Belt-driven
external grinding spindle
Hydrostatic external grinding spindle
Advantages and special features of external grinding spindles
- Concentricity < 0.1 to 0.3 µm and balancing quality < G0.4
- Very good bearing damping improves sanding performance and surface quality
- Wear-free hydostatic bearings for consistently high sanding quality
- High load capacity and rigidity thanks to highly rigid bearings with PM regulators
- With special synchronous motor for fast acceleration and braking
- With magnetic or optical angle measuring system
- With taper or flange connection or manual/automatic HSK flange
- With hydraulic unit and special inverter for safe machine stops
Hydrostatic CBN external grinding spindle
Special features of a
CBN external grinding spindle
- Concentricity < 0.1 to 0.3 µm and balancing quality < G0.4
- Very good bearing damping improves sanding performance and surface quality
- Wear-free hydostatic bearings for consistently high sanding quality
- High load capacity and rigidity thanks to highly rigid bearings with
PM controllers – even for heavy workpieces - With drive behind or between the hydrostatic bearings
- With magnetic or optical angle measuring system
- With taper or flange connection or manual/automaticautomatic HSK flange
Hydrostatic high-performance external grinding spindle
Advantages and special features of the external grinding spindle
- Long-term concentricity < 0.3 µm
- Best balancing quality < G0.4
- Very good bearing damping improves sanding performance and surface quality
- Wear-free hydostatic bearings for consistently high sanding quality
- High load capacity and rigidity thanks to highly rigid bearings with
PM controllers – even for heavy workpieces - Excellent thermal stability
- With motor behind the hydrostatic bearings
- With magnetic or optical angle measuring system
- With taper or flange connection or manual/automatic
HSK flange - Best surface finish and shape accuracy on the workpiece
Hydrostatic External grinding spindle for 1-2 grinding wheels
Special features of the external grinding spindle
for 1-2 grinding wheels
- Long-term concentricity < 0.2 µm
- Best balancing quality < G0.4
- Very good bearing damping improves sanding performance and surface quality
- Wear-free hydostatic bearings for consistently
high sanding quality - High load capacity and rigidity thanks to highly rigid bearings with
PM controllers – even for heavy workpieces - Excellent thermal stability
- With motor between the hydrostatic bearings
- Best surface finish and shape accuracy on the workpiece
Hydrostatic External grinding spindle to the Loops from Brake disks
Special features of the external grinding spindle
- Vehicle brake discs require hard coatings such as tungsten carbide, which are very difficult to grind
- Hydrostatic motor spindle for grinding developed for maximum rigidity and load capacity
- Fast grinding of hard-coated automotive brake discs
- Maximum speed 1,420 rpm at the required low grinding speed
- Maximum radial force on the grinding wheel: 11,000 N
- Engine output 40 kW/263 Nm, 100 % S1 (ED100 %)
- Radial stiffness > 1,800 N/µm
Belt-driven external grinding spindle 20-150 kW
Special features of belt-driven external grinding spindles
- Round and flat < 0.25 to 0.5 µm
- Very good bearing damping improves sanding performance
and surface quality - Wear-free hydrostatic bearings for consistently high sanding quality
- High load capacity and rigidity thanks to highly rigid bearings with PM regulators
- Use for belt-driven applications
- Suitable for portal surface grinding machines, cylindrical grinding machines and roll grinding machines
