Haimer Power Mini Shrink Chuck, D = 8 mm, ZG130, HSK-A63 Tool Holder A63.174.08.8 (0839365)

Haimer Part Number: A63.174.08.8

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:

- Power Mini Shrink Chuck extra slim, DIN 69893-1, HSK-A63

- Chuck fine balanced G2.5 at 25.000 rpm

- All functional surfaces fine machined

- More accurate than DIN

- Shrink fit chuck suitable to all inductive shrink fit units.

- Power Mini Shrink Chuck is perfect for 5-axis-machining in the die & mould and in the medical industry. Very slim at the top like the HAIMER Mini Shrink Chucks, Power Mini Shrink is reinforced at the base. Thereby efficient milling is possible with an angled tool even at long protruding lengths.

- Extra slim design (1.5 mm wall thickness)

- 3° slope at the top

- With threaded holes in order to balance with balancing screws

- For solid carbide tools with shank tolerance h6

- Heat-resistant hot-working steel

- Hardened 54 -2 HRC

- Attention: Heating and cooling sleeves are needed when shrinking on most shrink fit machines (see accessories). However, when using the Power Clamp i4.0 Sprint/Air or Nano machines with the motorized coil and scanner, sleeves are not necessary.

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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.