Hydraulic extension
Contact force by a spring
Single-acting with spring return
Hydraulic work supports
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Work support, block version – 500 bar – hydraulic extension AVBH
Block version
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
• rod treated to prevent seizing and corrosion
• stainless steel spring
• prestress generated by spring
• Supplied with O-rings:
5.28 x 1.78 – 90 NBR for AVBH 12 and AVBH22
7.65 x 1,78 – 90 NBR for AVBH 42
Special models available on request.
Please enquire for clamping pressure values below 150 bar.
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
at |
Elastic collapse at 500 bar | Travel |
Rod Ø
|
Type | Reference | ||||||||||||||||||||||
| a | b | c | e | f | g | h | k | m | n | p | r | s | u | v | L1 | L2 | L3 | ||||||||||
| 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 | mm | mm | mm | mm | |||||
| 12 | 7 | 2.8 | 4.5 | 12 | 20 | AVBH 12 | 751 060/000 | 104 | 56 | 48 | 83 | 68 | M12 lg. 12 | 38 | 24 | 9 | 18 | 4 | 8.8 | 34 | 8 | 17 | 20 | 28 | 40 | 3D | |
| 20 | 12.5 | 4.7 | 3 | 12 | 30 | AVBH 22 | 751 061/000 | 104 | 70 | 58 | 83 | 72 | M12 lg. 15 | 44 | 29 | 11 | 25 | 4 | 8.8 | 34 | 10 | 26 | 20 | 28 | 52 | 3D | |
| 35 | 22 | 7 | 2 | 16 | 40 | AVBH 42 | 751 072/000 | 138 | 96 | 70 | 109 | 98 | M16 lg. 14 | 55 | 35 | 15 | 25 | 5 | 11 | 42 | 12 | 34 | 23 | 38 | 74 | 3D | |
