KORRETTO · CNC tool holder series
SK Hydraulic Tool Holder
SK hydraulic tool holders are designed for CNC machines using SK / DIN 69871 spindle interfaces. They provide stable hydraulic clamping for cutting tools in milling, drilling and precision machining operations.
Send the SK spindle interface, tool shank diameter, tool length and machining process, and we will help check the suitable SK hydraulic tool holder model.
Product Overview
The KORRETTO SK hydraulic tool holder is used for precision tool clamping on machines with SK / DIN 69871 interfaces. It is suitable for milling, drilling and machining operations requiring stable tool holding.
Typical Applications
- SK / DIN 69871 machining centers
- Precision milling and drilling
- Stable cutting tool clamping
- General CNC machining operations
- Applications requiring SK40 or SK50 tool holder options
Key Features
SK hydraulic tool holder structure
Suitable for DIN 69871 spindle interfaces
Stable hydraulic clamping for cutting tools
Multiple clamping size options
Suitable for precision machining and general CNC operations
Parameters and Dimensions
Use the dimension drawing and parameter tables below to verify dimensions and key parameters before model selection.
| Order No. | Model | Drawing No. | Clamping Diameter Φd (mm) | ΦD1 (mm) | ΦD2 (mm) | L (mm) | L1 (mm) | Min. Insertion Length C1 (mm) | Max. Insertion Length C (mm) | Net Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| A011910 | SK40-PHC06-80.5 | 1 | 6 | 28 | 50 | 80.5 | 35 | 26 | 40 | 1.2 |
| A011911 | SK40-PHC08-80.5 | 1 | 8 | 30 | 50 | 80.5 | 35 | 28 | 40 | 1.25 |
| A011912 | SK40-PHC10-80.5 | 1 | 10 | 32 | 50 | 80.5 | 35 | 33 | 45 | 1.3 |
| A011913 | SK40-PHC12-80.5 | 1 | 12 | 34 | 50 | 80.5 | 35 | 37 | 47 | 1.35 |
| A011914 | SK40-PHC16-80.5 | 1 | 16 | 38 | 50 | 80.5 | 35 | 40 | 51 | 1.35 |
| A011915 | SK40-PHC20-80.5 | 1 | 20 | 43 | 50 | 80.5 | 35 | 40 | 51 | 1.38 |
| A011916 | SK40-PHC25-80.5 | 2 | 25 | 57 | 66 | 80.5 | 26 | 51 | 61 | 1.5 |
| A011917 | SK40-PHC32-80.5 | 2 | 32 | 62 | 72 | 80.5 | 26 | 55 | 65 | 1.6 |
| A011910 | SK50-PHC06-90 | 1 | 6 | 30 | 52 | 90 | 40 | 26 | 40 | 3.55 |
| A011911 | SK50-PHC08-90 | 1 | 8 | 32 | 52 | 90 | 40 | 28 | 40 | 3.65 |
| A011912 | SK50-PHC10-90 | 1 | 10 | 34 | 52 | 90 | 42 | 33 | 45 | 3.7 |
| A011913 | SK50-PHC12-90 | 1 | 12 | 36 | 52 | 90 | 42 | 37 | 47 | 3.75 |
| A011914 | SK50-PHC16-90 | 1 | 16 | 41 | 52 | 90 | 40 | 40 | 51 | 3.8 |
| A011915 | SK50-PHC20-90 | 1 | 20 | 43 | 52 | 90 | 34.5 | 40 | 51 | 4 |
| A011916 | SK50-PHC25-105 | 1 | 25 | 54 | 66 | 105 | 43 | 56 | 86 | 4.04 |
| A011917 | SK50-PHC32-105 | 1 | 32 | 62 | 72 | 105 | 43 | 60 | 90 | 4.22 |
Note: Tool shank diameter must be within h6 tolerance; do not use tools with flats or notches on the shank; empty clamping is prohibited; tool insertion length must not be less than the minimum clamping length C1 where applicable.
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Selection Notes
Before selecting an SK hydraulic tool holder, confirm the SK spindle interface, tool shank diameter, tool length, machining process and required clamping stability. The holder must match the machine spindle and cutting tool shank.
FAQ
What is an SK hydraulic tool holder used for?
An SK hydraulic tool holder is used to clamp cutting tools on machines with SK / DIN 69871 spindle interfaces. It is suitable for milling, drilling, boring and precision CNC machining operations.
What spindle interface should be confirmed?
Please confirm the SK / DIN 69871 spindle interface type and holder size before selection. The holder must match the actual machine spindle specification.
What tool shank or clamping size should be checked?
Please confirm the cutting tool shank diameter, clamping length and tool projection. These factors determine the suitable SK hydraulic tool holder model.
How is this holder different from HSK or BT / BBT types?
The main difference is the spindle interface system. SK holders are selected for SK / DIN 69871 machines, while HSK and BT / BBT holders match their own spindle standards.
What runout, balance or speed requirement should be confirmed?
Please confirm the required machining accuracy, spindle speed, balance condition and tool overhang. These factors help determine the suitable hydraulic tool holder specification.
Is it suitable for milling, drilling or boring operations?
Yes, it can be selected for milling, drilling, boring and other CNC machining operations when the spindle interface, tool shank and process load are matched correctly.
What should be checked before installation?
Check the spindle taper, holder size, tool shank diameter, projection length and machine clearance before installation. The taper and clamping surfaces should be clean and correctly seated.
What information is needed for quotation?
Please provide the spindle interface, holder size, tool shank diameter, machining process, projection length and any accuracy or speed requirement.
