Hydraulic extension
Spring return
Hydraulic work supports
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Hydraulic work support – 500 bar – with flange ring and counter-bores under the head AVLH
Single-acting - counter-bores on head
Locking force at 500 bar: 12 to 35 kN
Hydraulic supports are designed to support the workpieces in a specific plane and eliminate vibration during machining.
Support with single hydraulic supply port for extension and locking of the rod.
For the operating principle, consult the guide.
• screw fastening
• body with anti-corrosion treatment
• stainless steel spring
• prestress generated by spring
• supplied with O-ring seals:
5.28 x 1.78 – 90 Shore for AVLH 12 and AVLH 22
7.65 x 1.78 – 90 Shore for AVLH42
For operating pressure values below
150 bar, please enquire.
Special models can be made upon request.
IMPORTANT
The bleeder must always be located at the highest point in the fixture.
In order to allow the rod to be retracted by springs, the counter pressure must not exceed 2 bar.
Maximum flow rate: 1.5l/min
Locking force diagram
Contact force diagram
| Locking force | Elastic collapse at 500 bar | Travel | Rod
Ø |
Type | Reference | ||||||||||||||||||
| D | a | b | c | e | f | g | h | j | p | m | n | r | s | u | |||||||||
| 500 bar | 300 bar | 150 bar | |||||||||||||||||||||
| kN | kN | kN | µm/kN | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | ° | ||||
| 12 | 7 | 2.8 | 3.5 | 12 | 20 | AVLH 12 | 751 048/000 | 42 | 28 | 20 | 84 | 67 | 54 | M12 lg. 12 | 4 | 8.8 | 7 | 11 | 6.5 | 42 | 17 | 30 | 3D |
| 20 | 12.5 | 4.7 | 2.5 | 12 | 30 | AVLH 22 | 751 051/000 | 54 | 32 | 22 | 82 | 79 | 66 | M12 lg. 15 | 4 | 8.8 | 7 | 11 | 6.5 | 54 | 26 | 30 | 3D |
| 35 | 22 | 7 | 2.5 | 16 | 40 | AVLH 42 | 751 070/000 | 67 | 40 | 28 | 110 | 98 | 82 | M16 lg. 14 | 5 | 11 | 9 | 14 | 9 | 67 | 34 | 35 | 3D |
