Accessories Reducers with cooling lubricant industrial seal areavailable for KENNAMETAL HERTEL expansion industrial chucks, clamping diameter 12, 20 and 32 mm. They are suitable for tool shanks to DIN 6535 and DIN 1835, diameter 4 to 25 mm.Intermediate sizes and metric/Imperialversions on request.A testing bar is available for testing theclamping function.Any dirt in the clamping bore can be removedwith the nylon cleaning brush manufacturer.

Hydraulic Expansion Chucks

® Features, Handling, Accessories, Maintenance Maintenance Features KENNAMETAL HERTEL expansion chucks aremaintenance-free and characterised by a long service life.The clamping function should be checked witha testing bar on a regular basis according to the size of the load and the length of use. Reliable clamping and retention of minimumclamping length by limiting the travel of the stop pin.Closed vise system prevents penetrationof chips, dirt or cooling lubricant.Special shape of clamping bore createsimmunity to oily shanks.Clamping piston stroke limiter prevents theexpansion bush from being overextended.Large axial travel for stop pin.Optimum cooling lubricant supply via throughbore in stop pin.Fully enclosed tool shank in clamping boreprevents cooling lubricant loss.Maximum runout and repeating accuracy dueto centric clamping of solid straight shafts: 0.003 mm.Secure torque transfer even at high speeds. Radially positioned adjusting screw for quickand easy tool length adjustment. Handling Remove any preservatives on the hydraulicexpansion chuck before use.Introduce the tool into the clamping bore asfar as the stop pin.Adjust the tool length with the Allen key bymeans of the radially positioned adjusting screw.Always tighten the clamping screw with thewrench as far as the limit stop. The tool is now clamped and ready for use.

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