KORRETTO · CNC tool holder series
BT / BBT Hydraulic Tool Holder
BT / BBT hydraulic tool holders are used for precision tool clamping on machining centers with BT or BBT spindle interfaces. They are suitable for milling, drilling and finishing operations that require stable tool holding and practical model selection.
Send the spindle interface, tool shank diameter, required holder style, tool length and machining process, and we will help check the suitable BT / BBT hydraulic tool holder model.
Product Overview
The KORRETTO BT / BBT hydraulic tool holder series is designed for precision tool clamping on BT and BBT spindle machines. It includes standard, slim straight and slim stepped hydraulic holder options for different tool access and machining requirements.
Typical Applications
- BT / BBT machining centers
- Milling and drilling operations
- Precision tool clamping
- Applications requiring standard or slim holder styles
- Machining setups where tool access and tool length must be considered
Key Features
BT / BBT hydraulic tool holder series
Standard, slim straight and slim stepped options
Suitable for milling, drilling and finishing operations
Stable hydraulic clamping for cutting tools
Multiple sizes for different tool shank diameters
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) |
|---|---|---|---|---|---|---|---|---|---|---|
| A011510 | BT30-PHC03-60 | 1 | 3 | 25 | 46 | 60 | 19 | 18 | — | 0.64 |
| A011511 | BT30-PHC3.175-60 | 1 | 3.175 | 25 | 46 | 60 | 19 | 18 | — | 0.64 |
| A011512 | BT30-PHC04-65 | 1 | 4 | 26 | 46 | 65 | 24 | 23 | — | 0.66 |
| A011513 | BT30-PHC06-75 | 1 | 6 | 30 | 46 | 75 | 26 | 29 | 42 | 0.81 |
| A011514 | BT30-PHC08-75 | 1 | 8 | 32 | 46 | 75 | 24 | 30 | 42 | 0.82 |
| A011515 | BT30-PHC10-75 | 1 | 10 | 34 | 46 | 75 | 24 | 34 | 50 | 0.83 |
| A011516 | BT30-PHC12-75 | 1 | 12 | 36 | 46 | 75 | 25 | 36 | 50 | 0.84 |
| A011521 | BT30-PHC14-90 | 1 | 14 | 38 | 46 | 90 | 40 | 42 | 50 | 0.96 |
| A011517 | BT30-PHC16-90 | 1 | 16 | 40 | 46 | 90 | 33 | 43 | 52 | 1 |
| A011522 | BT30-PHC16-120 | 1 | 16 | 40 | 46 | 120 | 33 | 43 | 52 | 1.43 |
| A011523 | BT30-PHC18-90 | 1 | 18 | 42 | 46 | 90 | 35 | 40 | 52 | 1.00 |
| A011518 | BT30-PHC20-90 | 1 | 20 | 40 | 46 | 90 | 33 | 36 | 52 | 1.07 |
| A011524 | BT30-PHC20-120 | 1 | 20 | 40 | 46 | 120 | 33 | 36 | 52 | 1.43 |
| A011519 | BT30-PHC25-105 | 2 | 25 | 55 | 63 | 105 | 46 | 49 | 80 | 1.64 |
| A011520 | BT30-PHC32-105 | 2 | 32 | 60 | 74 | 105 | 47 | 54 | 80 | 1.83 |
| Order No. | Model | 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) |
|---|---|---|---|---|---|---|---|---|---|
| A011710 | BT40-PHC06X-200 | 6 | 26 | 50 | 200 | 150 | 20 | 37 | 2.05 |
| A011711 | BT40-PHC08X-200 | 8 | 28 | 50 | 200 | 150 | 20 | 37 | 2.1 |
| A011712 | BT40-PHC10X-200 | 10 | 30 | 50 | 200 | 150 | 24 | 40 | 2.18 |
| A011713 | BT40-PHC12X-200 | 12 | 32 | 50 | 200 | 150 | 29 | 45 | 2.3 |
| A011714 | BT40-PHC20X-200 | 20 | 34 | 50 | 200 | 150 | 31 | 50 | 2.45 |
| A011715 | BT30-PHC04X-120 | 4 | 26 | 46 | 120 | 70 | 24 | 35 | 1.1 |
| A011716 | BT30-PHC06X-120 | 6 | 26 | 46 | 120 | 70 | 30 | 48 | 1.07 |
| A011717 | BT30-PHC08X-120 | 8 | 28 | 46 | 120 | 70 | 31 | 48 | 0.9 |
| A011718 | BT30-PHC10X-120 | 10 | 30 | 46 | 120 | 70 | 33 | 50 | 0.9 |
| A011719 | BT40-PHC04X-140 | 4 | 26 | 46 | 140 | 60 | 24 | 35 | 2 |
| A011720 | BT40-PHC06X-140 | 6 | 26 | 46 | 140 | 60 | 30 | 48 | 2.1 |
| A011721 | BT40-PHC08X-140 | 8 | 32 | 46 | 140 | 60 | 31 | 48 | 2.1 |
| A011722 | BT40-PHC10X-140 | 10 | 32 | 46 | 140 | 60 | 33 | 50 | 2.2 |
| Order No. | Model | Clamping Diameter Φd (mm) | ΦD1 (mm) | ΦD2 (mm) | ΦD3 (mm) | L (mm) | L1 (mm) | L2 (mm) | Min. Insertion Length C1 (mm) | Max. Insertion Length C (mm) | Net Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A012810 | BT40-PHC08L-200 | 8 | 21 | 27 | 40 | 200 | 50 | 100 | 24 | 40 | 1.67 |
| A012811 | BT40-PHC10L-200 | 10 | 24 | 29 | 40 | 200 | 50 | 100 | 24 | 40 | 1.7 |
| A012812 | BT50-PHC08L-330 | 8 | 21 | 27 | 40 | 330 | 50 | 215 | 24 | 40 | 5 |
| A012813 | BT50-PHC10L-330 | 10 | 24 | 29 | 40 | 330 | 50 | 215 | 24 | 40 | 5.02 |
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 a BT / BBT hydraulic tool holder, confirm the spindle interface, tool shank diameter, holder length, machining access requirement and whether a standard, slim straight or slim stepped holder is needed.
FAQ
What is a BT / BBT hydraulic tool holder used for?
A BT / BBT hydraulic tool holder is used to clamp cutting tools on machining centers with BT or BBT spindle interfaces. It is suitable for milling, drilling, boring and precision CNC machining applications.
What spindle interface should be confirmed?
Please confirm whether the machine uses a BT or BBT spindle interface and the required holder size. The holder must match the actual spindle taper and machine specification.
What tool shank or holder size should be checked?
Please confirm the cutting tool shank diameter, clamping length and holder projection. These factors determine the suitable hydraulic tool holder model.
How is this holder different from other CNC tool holders?
The main difference is the spindle taper system and the holder geometry. BT / BBT hydraulic tool holders are selected for matching BT or BBT machines, while HSK, SK and other holders are used with different interfaces.
What runout, balance or speed requirement should be confirmed?
Please confirm the required machining accuracy, spindle speed, balance condition and tool overhang. These factors affect the suitable holder choice for CNC toolholding.
Is it suitable for milling, drilling or boring operations?
Yes, it can be selected for milling, drilling, boring and other machining operations when the tool shank, process load and spindle interface are matched correctly.
What should be checked before installation?
Check the spindle interface, 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.
