HSKA.H.ERC GAETANO CAPORALI Collet chucks ER16, ER20, ER25, ER32, ER40 with hexagonal or standard clamping nut DIN ISO 15488 (DIN6499) and HSK FORM A shank DIN 69893-1 of choice
(Incl. Tax: €114.78)
The HSK-A shank chucks for ER collets are made of hardened and ground high-grade steel, have an unbalance error of G6.3 and can reach a maximum speed of 15-18,000 rpm of the machine tool spindle. It should be noted that the unbalance force at high spindle speeds must be within 1% of the axial load of the precision bearings mounted in the machine tool spindle for proper operation. The shank HSK-A is used for mounting with automatic tool change on machine tools, especially for machining and milling centres. They have a central coolant flow through a connecting tube. It has a feed groove on the edge of the taper cone and grooves on the flange. It also has a radial bore as it can also be used for manual tool changing and fixing, allowing interchangeability with the 'HSK-C' type.
| ER clamp size | Collets range | Supplied with clamping nut |
| ER16 | 1 ÷ 10 | Hexagonal |
| ER20 | 1 ÷ 14 | Hexagonal |
| ER25 | 1 ÷ 20 | Hexagonal |
| ER32 | 2 ÷ 22 | Standard |
| ER40 | 3 ÷ 30 | Standard |
These tool holders are designed for applications requiring internal coolant supply: the axial passage of the coolant ensures a continuous flow to the tool, enhancing heat dissipation and facilitating chip evacuation, especially during internal machining operations.
A distinctive feature is the clamping nut, which combines elements of both hexagonal and standard profiles. This hybrid design offers a good balance between compact dimensions and easy handling, making the tool holder suitable for working in tight spaces.
In addition to the range of HSK interfaces, tool holders can be selected based on the ER collet size and the overall tool length, adapting easily to the specific machining and setup requirements.
The interchangeable collet system is ideal for users seeking a modular and cost-effective solution: changing the collet is all that’s needed to clamp tools with different shank diameters. Larger ER collets are typically used with cylindrical or Weldon shank tools.
When machining in areas with restricted space, choosing a tool holder with the appropriate projection length is essential to prevent potential collisions with the workpiece.
The product range includes several length options to give the user full flexibility when configuring the setup, ensuring both rigidity and clearance. All tool holders are balanced to G6.3 standard and rated for speeds up to 18,000 RPM.
- Brand:
- GAETANO CAPORALI
- Typology:
- ER with standard ring nut
