A development of the steep taper, HSK was created as part of a research project carried out by RWTH Aachen University in close collaboration with well-known industrial partners. From the outset, OTT-JAKOB played a leading role in the creation of the HSK interface.
Since its standardisation, HSK has become a standard interface in machine tool technology. With the congruence between the flange and taper contact surfaces, the HSK clamping system is ideal for highly precise machining results and a repeat accuracy on the micro scale.
The hollow-shaft taper (HSK) has a shorter, lighter structure than the steep taper, which allows tools to be changed more quickly and higher speeds to be reached. By virtue of its high pull-in forces, excellent stiffness and optimal torque transmission, HSK is also ideal for use in heavy machining.
Optimal power and torque transmission
Due to the geometry of the OTT-JAKOB HSK-Clamping-Units, the gripper segments move in parallel. As a result, the tool is clamped between two surfaces. This guarantees optimal power and torque transmission.
Increased pull-in force
The geometric construction of the gripper segments and clamping cone allows for a reliable transmission of increased tension.
Long life span
To afford them the best possible protection against wear, the surfaces of the gripper segments and clamping cone are coated with a high-quality material which also guarantees low coefficients of friction.
Type K HSK is the most cost-efficient solution in the range of OTT-JAKOB HSK-Clamping-Units. A solid basic variant, it is particularly suited for standard applications. Its high-quality coating gives it a long life span.
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Type B was developed to meet the specific requirements of the automotive industry. This high-performance clamping unit was designed for frequent, quick tool changes. The restricted guidance ensures that the grippers move in parallel even in the most difficult conditions. The optimised DLC coating gives it the longest possible life span. At the same time, the reduced friction leads to a higher transmission ratio.
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Type C HSK generates extremely short tool-changing times. The built-in holding function minimises waiting time during the tool-changing process. Our high-quality, optimised DLC coating also gives it a long life span.
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Based on Type B, this clamping unit provides an even higher transmission ratio with an identical internal contour.
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For the shortest possible spindle lengths, shorter variants of many Type B clamping units are also available.
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