Vertical fixed hydraulic clamping head chuck for workstation-side precision clamping.
Vertical Fixed Hydraulic Rubber Collet Chuck
KORRETTO vertical fixed hydraulic clamping head chuck is used for fixed-mounted hydraulic clamping stations, vertical fixtures and automation cells working with matching rubber-flex clamping heads or rubber collet heads. It is suitable for external clamping on specified diameters or gripping surfaces where hydraulic clamping and unclamping, stable installation and repeat operation are required. This page covers the fixed-mounted hydraulic clamping head chuck unit and should not be treated as a general rotating lathe chuck page.

Product Overview
The vertical fixed hydraulic clamping head chuck is a fixed-mounted hydraulic chuck unit within the KORRETTO rubber-flex clamping system. It is selected for vertical workstations, fixed clamping stations, special machines and automation-ready layouts where the chuck body remains mounted in place and the workpiece is clamped externally by the matching rubber-flex clamping head or rubber collet head.
The metal clamping segments directly grip the workpiece. The vulcanized rubber connects the segmented metal structure, seals the slots, helps parallel clamping and supports stable release. The complete unit should be selected according to installation method, hydraulic interface, clamping diameter, workpiece drawing, spindle or fixture conditions and the required workstation layout.
It can be used for batch production, automation loading and unloading, finish machining, rough machining and higher-cycle operation when the model size, hydraulic conditions and machine rigidity are matched correctly.
Key Features
| Feature | Description |
|---|---|
| Fixed-mounted hydraulic chuck unit | Used for stationary clamping stations, vertical fixtures and automation cells rather than rotating lathe spindle use. |
| Matching rubber-flex collet system | Works with matching rubber-flex collets or rubber collet heads for external clamping on specified diameters or gripping surfaces. |
| Hydraulic clamping and unclamping | Supports hydraulic actuation for clamp and release cycles in repeat production or workstation integration. |
| Segmented metal clamping with vulcanized rubber support | The metal clamping segments grip the workpiece directly while the vulcanized rubber connects the segments, seals the slots and supports stable release. |
| Suitable for precision and higher-cycle use | Can be applied in finish machining, rough machining and higher-cycle operation when the full installation and hydraulic conditions are matched correctly. |
Typical Applications
- Vertical workstations and fixed clamping stations
- Automation cells and loading or unloading lines
- Special machines and secondary clamping stations
- Finish machining with repeat clamping requirements
- Rough machining when model size, hydraulic pressure and machine rigidity are confirmed
- Higher-cycle batch production layouts
- Projects that need to coordinate hydraulic interface, installation dimensions and machine space
Technical Data for Vertical Fixed Hydraulic Clamping Head Chucks
The matching rubber-flex collets may be referenced according to KORRETTO rubber-flex collet series data: collet accuracy ≤ 0.01 mm, chuck body accuracy ≤ 0.005 mm, and collet hardness HRC 58–62. These values describe the rubber-flex collet series and should not be treated as a single guaranteed accuracy value for every complete vertical fixed hydraulic rubber collet chuck assembly.
Use the structure drawing and model table to check the installation dimensions, mounting bolt pattern and clamping range. Hydraulic interface, allowable speed and drive conditions should be confirmed against the full application layout.
| Model | A (mm) | B (mm) | L1 (mm) | Mounting bolts | Clamping range (mm) |
|---|---|---|---|---|---|
| 52 | 120 | 125 | 154 | PCD Ø157 (M8) | 6–52 |
| 65 | 130 | 130 | 174 | PCD Ø180 (M8) | 6–65 |
| 80 | 130 | 160 | 186 | PCD Ø194 (M8) | 16–80 |
| 100 | 140 | 220 | 229 | PCD Ø240 (M8) | 26–100 |
Selection and Inquiry Information
Please prepare the following information before quotation or technical review:
- Workpiece drawing
- Outside diameter or clamping diameter
- Clamping length
- Material
- Blank condition
- Whether anti-slip serration is required
- Machine brand and model
- Installation method and available space
- Hydraulic interface
- Drawbar or drive conditions
- Target cycle time
- Machining type
- Current clamping method and existing clamping issues
Related Products
FAQ
What machines or workstations is this vertical fixed hydraulic rubber collet chuck used for?
It is used for machine tools, special machines and fixtured workstations that require fixed-mounted, vertical or automation-ready hydraulic clamping. Selection should confirm the installation method, hydraulic interface, clamping range, workpiece size and available workstation space.
How is it different from a standard hydraulic chuck?
Standard hydraulic chucks usually refer to rotating power chucks with 2-jaw, 3-jaw or 4-jaw structures. This product is a fixed-mounted hydraulic rubber collet chuck unit designed around rubber-flex collet clamping and workstation installation.
How is it different from a replaceable rubber-flex collet?
A rubber-flex clamping head is the replaceable clamping element. This product is the complete vertical fixed hydraulic chuck unit that works with the matching rubber-flex clamping head, hydraulic actuation and installation interface.
Does the rubber directly contact the workpiece?
No. The metal clamping segments directly grip the workpiece. The vulcanized rubber connects the segmented metal structure, helps parallel clamping, seals the slots and supports stable release.
Can it be used for rough machining or high-cycle production?
Yes, when the model size, hydraulic conditions and machine rigidity are matched correctly. For rough machining or higher-cycle production, the final choice should still be checked against clamping range, allowable speed, cutting load and trial clamping results.
What information is needed for quotation?
Please provide the workpiece drawing, clamping diameter, clamping length, material, blank condition, machine model, installation method, hydraulic interface, available space, target cycle time, machining type, current clamping method and existing clamping issues.



