Haimer Grinding Wheel Adapter HSK-A63 Multi-part w/ One Clamping Screw Tool Holder A63.160.20.125.002.HA (0840892)

Haimer Part Number: A63.160.20.125.002.HA

HAIMER is a global leader in tool holding, balancing, and presetting technology. Founded in 1977 and headquartered in Igenhausen, Germany, HAIMER offers premium shrink fit chucks, tool balancing machines, and precision tool holders trusted in high-performance machining environments worldwide.

This product is priced singly and comes in packs of 1.

Please note that the actual item may not be/look exactly the same as shown in the item picture(s).

Product Features:

- HSK-A63 GRINDING WHEEL ADAPTER - MULTI-PART WITH ONE CLAMPING SCREW

- All function surfaces finely processed

- More accurate than DIN

- Basic body with balancing thread

- Weighted

- HSK-A63 grinding wheel adapter Multi-part with one clamping screw

- Fine balanced (without clamping flange) at G2.5 at 25,000 rpm

- Incl. cooling on the face side

- Optional external cooling (individually modificable according to the grinding wheel)

- Standard clamping height (see table)

- Special clamping height possible on request

- Incl. balancing threads for fine balancing

- Optimized design for total weight reduction

- Other basic tapers possible on request, longer A dimensions possible on request, any clamping diameter possible on request

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Background Information:

The HSK system was invented in Germany in the 1990's and is now very commonly found in European machine tools and spindles. HSK stands for "Hohl Shaft Kegel" - "Hollow Shank Taper", and as the name implies this type of interface has a cavity running through it. Unlike classical 'pull-stud' designs (CAT, BT, SK etc), HSK uses an internal drawbar mechanism which results in clamping force increasing with rotational speed. Additionally, the form features dual contact; on an axial face and the cone (1:10), which puts HSK in the upper echelons of tool holder performance.

The HSK-A form is probably the most common in the HSK family, and features drive slots which serve both to increase torque capability and provide rotational indexing (unequal slots). External features provide an interface for automatic tool change grippers and carousels. There is a bore milled directly into the side of the interface for RFID chip placement, and a threaded internal passage for coolant-through operation.

Company History:

Family-owned since 1977, HAIMER has grown from a precision parts specialist into a global tooling solutions supplier with operations across Europe, North America, and Asia.