Hydraulic rotary collet chuck for stable round-part clamping.
JHB Hydraulic Rotary Collet Chuck
KORRETTO JHB hydraulic rotary collet chuck uses hydraulic actuation for rotary collet workholding. It is suitable for round parts, shafts and sleeves where stronger clamping force, stable rotary operation and repeat collet contact are required. This page covers the JHB hydraulic rotary series only and should not be mixed with air-actuated JAD or JAW series pages.
Product Overview
The JHB hydraulic rotary collet chuck is selected when the process requires hydraulic clamping force in a rotating collet chuck layout. Compared with pneumatic collet chucks, hydraulic actuation is usually selected for higher clamping force or more demanding cutting conditions.
Selection should confirm hydraulic pressure, workpiece diameter, collet type, mounting interface, rotation speed, clamping stroke and machine compatibility.
Key Features
| Feature | Description |
|---|---|
| Hydraulic actuation | Selected for rotary collet clamping with hydraulic force. |
| Rotary collet workholding | Used for rotating spindle-side clamping. |
| Stable round-part contact | Suitable for shafts, sleeves and cylindrical components. |
| Higher-force applications | Useful where pneumatic clamping force is not sufficient. |
| Separate JHB series | Do not mix with JHA7-44, JAD, JAW, JHS or JT-W series pages. |
Technical Data and Dimensions
Use the drawing and parameter table to check hydraulic pressure, mounting dimensions, collet range, clamping stroke, rotation speed and machine compatibility.
| Model | ΦA | ΦB(H6) | C | ΦD | E | ΦF | G | H | J | Max. Speed (r/min) | Piston Stroke (mm) | Operating Pressure (kg/cm²) | Clamping Range | Clamping Stroke (mm) | Matching Collet | Clamping Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| JHB-15 | 133 | 100 | 4 | 19 | 47 | 84 | 120 | 79 | 3-M6 Countersunk Holes | 500 | 2 | 5–18 | Φ2–14 | 0.5 | YB-15 | Pull-Back |
| JHB-25 | 167 | 130 | 5 | 33 | 75 | 104 | 147 | 120 | 4-M8 Countersunk Holes | 400 | 3 | 5–18 | Φ5–25 | 1 | YB-25 | Pull-Back |
| JHB-40 | 187 | 150 | 5 | 49 | 80 | 133 | 168 | 135 | 4-M8 Countersunk Holes | 400 | 3 | 5–18 | Φ5–40 | 1 | 16C | Pull-Back |
| JHB-60 | 220 | 170 | 5 | 80 | 98 | 175 | 203 | 160 | 6-M8 Countersunk Holes | 300 | 3 | 5–18 | Φ5–60 | 1 | 20C | Pull-Back |
FAQ
What is the JHB hydraulic rotary collet chuck used for?
It is used for rotary collet clamping of round workpieces where hydraulic actuation is required.
When should I choose hydraulic actuation?
Hydraulic actuation is usually selected when the process needs higher clamping force, stable holding or heavier cutting conditions.
Is JHB the same as JAD or JAW?
No. JHB is a hydraulic rotary collet chuck series. JAD and JAW are separate air-actuated series.
What information is needed for selection?
Provide the workpiece drawing, clamping diameter, collet type, hydraulic pressure, mounting interface, target speed and clamping force requirement.
Can this be used for high-speed rotary clamping?
The suitable speed depends on the model, workpiece, balance condition and machine layout. Check the parameter table before selection.