Description
Mapal Order Number: 31229440
Mapal, Founded in Aalen, Germany in 1950
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).
| Properties | ||
|---|---|---|
| Name | Mapal MHC-HSK-A063-20-100-1-0-A UNIQ DReaM Chuck, 4.5° 31229440 | |
| EDP # | 0670391 | |
| Machine Connection | HSK-A | |
| Size Machine Connection | 63 | |
| Technology | HydroChuck | |
| d1 | 0.7874" | 20.000 mm |
| d2 | 1.2992" | 33.000 mm |
| d3 | 1.6535" | 42.000 mm |
| d4 | 0.0000" | 0.000 mm |
| d5 | 0.0000" | 0.000 mm |
| l1 | 3.9370" | 100.000 mm |
| l2 | 2.0079" | 51.000 mm |
| l3 | 0.3937" | 10.000 mm |
| l4 | 2.7126" | 68.900 mm |
| l5 | 0.0000" | 0.000 mm |
| Coolant Supply | Internal | |
| Coolant Outlet | Axial Concentric | |
| Length Adjustment | Axial | |
| Material Group | ||
Product Features:
- The UNIQ® DReaM Chuck, 4.5° is optimized for friction and drilling applications as well as for use with finishing cutters. It enables maximum rigidity with minimal material use with minimal interference contour due to the clamping initiation in the HSK collar. The outer contour of the UNIQ DReaM Chuck is based one-to-one on DIN 69882-8 for heat shrink chucks. As a result, the advantages of hydraulic expansion clamping technology can be transferred to these applications.
Technical Reference Files:
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.