Germany · Automatic and manual tool clamping systems, rotary unions and pull-force measurement
OTT-JAKOB Spanntechnik GmbH is a leading manufacturer of tool clamping systems for machine tools. The company traces its roots to 1873, when Albert Ott founded an institute of mathematics and mechanics in Kempten, Germany; its headquarters are now in Lengenwang in the Allgäu region of Bavaria and it has been part of the JAKOB Group since 1993. OTT-JAKOB specialises in tool clamping technology — automatic and manual clamping units for HSK, steep taper (SK), PSC (Capto) and KM4X interfaces, rotary unions, unclamping units and the POWER-CHECK pull-force measuring device, plus mechatronic assistance such as condition monitoring — making it a core partner to spindle and machine-tool builders.
We supply OTT-JAKOB automatic and manual clamping units (HSK, SK, PSC, KM4X), rotary unions, unclamping units and the POWER-CHECK pull-force gauge, sized to tool-holder interface, clamping force, drawbar stroke and mounting. Common specifications are sourced through the manufacturer and established channels with documentation and are original and new.
Below are commonly requested parts. Unlisted numbers can also be quoted — just ask.
Yes. OTT-JAKOB was founded in 1873 in Germany; its headquarters are in Lengenwang in the Allgäu region of Bavaria and it has been part of the JAKOB Group since 1993 — a key supplier of tool clamping technology for machine tools.
Tell us the tool-holder interface (HSK-A/HSK-T, SK, PSC/Capto, KM4X), required clamping force, drawbar stroke and the machine/spindle model; we match the clamping unit, rotary union and unclamping unit accordingly.
POWER-CHECK is a high-precision spindle pull-force measuring device used to verify that the spindle clamping force meets spec, safeguarding machining and tool changes; we can supply the matching range and interface.
Yes. We buy through the manufacturer and established channels; units are original and new, with paperwork for verification on arrival.
Share the part numbers you need. We reply with pricing and lead time within one business day.