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Flexible locking gas springs

This type of gas spring differs from the standard gas spring in having a built-in valve in the piston. This valve is normally closed, the operation can be performed with a bar in the piston rod (Figure 5. and 6.). When the valve is open, the gas spring works as a standard gas spring. If the valve is closed, it prevents the gas flowing between the two sides of the piston. As a result, after a minimal piston displacement, a force-balance occurs on both sides of the piston, so the piston will be locked in the given position. Since there is compressible gas on both sides of the piston, locking is flexible.


Figure 5. – The main structural parts of a flexible locking gas spring

Figure 6. – Spring characteristics of the flexible locking gas spring

Identification:

MP10-3-1U2R-800-100-300
MP10/28-3-1U2R-800-100-300

  • MP – flexible locking gas spring (for the rest of the nomination, see standard gas spring)
  • 10/28 – a dia. 10 mm rod with a dia. 28mm tube, instead of the normal dia. 23mm tube

We produce flexible locking gas springs only with rod dia. 10mm, with damping 3, and with 2R rod end fitting (M10x1x20 thread).

Specification of flexible locking gas springs:


Figure 7. – Specifications of flexible locking gas springs:
TypeRod, d [mm]Tube outer, D [mm]AMax. stroke, L [mm]*Force, [N]** Spring rate, X
MP10102360+2L400130-1200 1,4
MP10/28102860+2L400130-1200 1,21
 

* in 5mm steps
** measured in +20 Co
Possible damping: 3

Rigid locking gas springs

This type of gas spring also has a built-in valve in the piston, which can be operated in the same way as in the flexible locking gas spring. Here the piston is located in oil instead of gas, and the oil is separated from the gas by an auxiliary floating piston. Depending on the location of the gas, we differentiate rigid locking gas springs on pull and rigid locking gas springs on push (Figure 8. and Figure 9.). In both cases at one side of the piston there is only oil, so when the valve is closed the piston cannot move towards this space (rigid locking), and it can only move in the opposite direction if the external force exceeds the force generated by the pressure of the gas.


Figure 8. – Rigid locking gas spring on pull

Figure 9. – Rigid locking gas spring on push

Identification:

MKB-3-1U2R-800-100-300

  • MKB – rigid locking gas spring on pull (for the rest of the nomination, see standard gas spring)
  • MKBN – rigid locking gas spring on push (for the rest of the nomination, see standard gas spring)

We produce rigid locking gas springs only with rod/tube dia. 10mm/28mm, damping 3 and 2R rod end fitting (M10x1x20 thread).

Specification of rigid locking gas springs:


Figure 10. – Specification of rigid locking gas springs
TypeRod, d [mm]Tube outer, D [mm]Max. stroke, L [mm]*Force, [N]**Locking force [N] 
on pullon push
MKB10/281028300130-800max.
10 000
(6-8) F1 
MKBN1028300130-1200(5-7) F1max.
10 000
 
 
TypeSpring rate, XA
MKB10/281,3565+2,52L
1,565+2,37L
2,065+2,2L
MKBN1,3569+2,81L
1,569+2,63L
2,069+2,42L
 

* in 5mm steps
** measured in +20 Co
Possible damping: 3

Release heads for lockable gas springs

You can find a selection of release heads available for our lockable gas springs in the end connectors section. The heads can be used both with flexible locking and rigid locking gas springs. Whether or not you need a release head, submit the dimensions of the gas spring (stroke and length until the thread, and 2R rod end fitting) without the release head, then indicate the type of release head separately. However, when establishing the extended length do not forget to calculate with the length of the release head.

Lever-type release heads do not contain the lever and the plastic button for the lever. These are separate parts. If you need the release lever and the plastic button as well, please indicate.