High-frequency spindles

For extremely smooth cutting edges while maintaining high removal and feed rates.

Thanks to their extremely high speeds and excellent bearing, high-frequency spindles deliver extremely smooth cutting edges while maintaining high removal and feed rates.

You should choose a high-frequency spindle whenever maximum precision is called for, especially when using smaller tools. The true running accuracy here is in the range of a few micrometers.

Benefits of a high-frequency spindle

  • high speeds of up to 60,000 rpm
  • controllable speeds
  • high speed stability even under load
  • very low-noise operation
  • high-capacity factor at low weight and small size
  • precision bearing
  • software-controlled frequency converter with monitoring functions
  • pneumatic tool change feature available

Thanks to their rated power of up to 1.3 kW, spindles of this type are also suitable for intermediate tool diameters. The high speeds allow for incredible feed rates when using smaller carbide tools.

For high-frequency spindles with pneumatic clamping systems, we recommend an automatic tool magazine to automate your work processes.

All high-frequency spindles require a dry and oil-free compressed air supply for operation. For automatic tool change, the supply must also be capable of continuous operation at 6 bar.

The air consumption due to the pneumatic tool change is negligible; consumption due to sealing air is about 50 to 100 liters per minute, depending on spindle size. Subject to your system’s overall configuration, different types of compressors may be eligible.

Questions to be considered when selecting your compressor:

  • What is the consumption due to sealing air?
  • Is there a cooling/spraying system and/or pneumatic tool change?
  • What is the length of the supply line?
  • What is the maximum allowable noise level of the compressor?

The spindle SF 1300P comes with a compressor cooling unit. To install it, an appropriate 19” system rack is required.

Technical data

This overview shows the most important data of our high-frequency spindles, including:

  • output, speed and clamping ranges
  • tool change: manual vs. pneumatic

All high-frequency spindles feature a sealing air connection that prevents fluid or foreign bodies from entering the bearing area, as well as a software-controlled frequency converter with monitoring function. A display provides speed and load data.

High-frequency spindleCapacity S1*Capacity S6**Capacity Pmax***Speed rpmTool changeSealing airCooling unitClamping range
SF 650P650 W830 W1,200 W5,000 – 60,000pneumaticyesnoup to 6 mm
SF 1300P1,300 W1,500 W2,500 W5,000 – 60,000pneumaticyesyesup to 6 mm

* mechanical output rate under continuous spindle load (100% machining time)
** mechanical output rate with simulated machining cycle (60% machining time, 40% positioning time)
*** maximum mechanical output rate of spindle