Locking gas springs with rigid locking

Rigid locking is used in the tensile direction if spring-back is not desired, e.g. for safety reasons. Rigid locking in the compression direction is recommended if light applications are loaded with very high forces after locking that do not permit any compression.

TypeHY1HY3HY4HY6VOB18-1
Valve actuationOn the piston rod sideOn the tube side
TubeDiameter 22 mm Diameter 28 mmDiameter 28 mmDiameter 27 mmDiameter 28 mm
Locking in the extension direction:
rigid up to
max. 3,500 Nmax. 7,000 N4.8 x F1
max. 7,000 N 
1.6 x F1
max. 1,200

1.5 x F1
max. 1,200 N

Locking in the compression direction:
rigid up to
3.6 x F1
max. 6,500 N
5.8 x F1
max. 10,000 N
max. 10,000 Nmax. 1,200 Nmax. 3,000 N
CharacteristicsMax. locking in the tensile direction for small tube diameter Max. locking in the tensile direction

Max. locking in the compression direction Particularly large strokes with low extension forcesParticularly short design with medium strokes

 

 

  • Type HY1 and HY3

    These two types differ only in the diameter of the pressure tube. Due to the arrangement of the oil chamber, the locking in the extension direction is rigid up to the mechanical load limit, regardless of the filling force. In the compression direction, the locking remains rigid until the filling force-dependent limit is fallen below so that the separating piston moves in the direction of the gas chamber.


    Due to the relationship of the tube and piston rod cross-section, the limit for the lockable gas spring HY1 is 3.6-times the F1-force and for the lockable gas  spring HY3 the limit is 5.8-times the F1-force. This makes applications possible that require a rigid locking against additionally applied loads/weights and where an additional force accumulator is used in addition to the gas spring The limit named for the rigid locking corresponds to the ratio of the load to the dead weight of the application.

     

    SpecificationHY1HY3
    LockingRigid in tensile directionRigid in tensile direction
    in compression direction:
    rigid to/max. Load
    3.6 x F1 / 6,500 N5.8 x F1 / 10,000 N
    in the extension direction:
    rigid to/max. Load
    3,500 N7,000 N
    Tube diameter22 mm 28 mm
    Piston rod diameter10 mm10 mm
    min. installation length excluding eyelet2.6 x stroke + 76 mm2.4 x stroke + 76 mm
    Stroke C10 - 300 mm10 - 450 mm
    Extension forces F1 80 - 800 N80 - 1,000 N
    Progression (F2/F1)< 1.6< 1.5
    Release force 0.25 x F1 N0.25 x F1 N
    Release travel, shortmax. 0.5 mmmax. 0.5 mm
    Release travel, normal

    2.5 ≤ x  ≤ 3.5 mm

    2.5 ≤ x ≤ 3.5 mm
    Recommend installation positionarbitraryarbitrary
    Permissible operating temperature-20°C to +60°C-20°C to +60°C
    Permissible storage temperature-20°C to +80°C-20°C to +80°C
    Possible special functions:
    AntiShock ASxx
    EasySwitch ESxx
    TimeReset TRx
    OverRide OR
    ComfortReleaseLow CLxx


    Application Examples

    • Backrest adjustment of seats
    • Tilt adjustment of hospital beds
    • Leg supports on wheelchairs and passenger seats
  • Model HY4

    Due to the arrangement of the oil chamber, the locking in the compression direction is rigid up to the mechanical load limit, regardless of the filling force. In the extension direction, the locking remains rigid until the filling force-dependent limit is fallen below so that the separating piston moves in the direction of the gas chamber. Due to the relationship of the tube and piston rod cross-section, the limit for the lockable gas spring HY4 is 4.8-times the F1-force.

    This makes applications possible that require an extremely rigid locking against additionally applied loads/weights in the pressure direction. In the extension direction, the limit already named for the rigid locking corresponds to the ratio of the load to the dead weight of the application.

     

    SpecificationHY4
    Lockingrigid in the compressive direction
    in the compression direction:
    rigid to/max. Load
    10,000 N
    in the extension direction:
    rigid to/max. Load
    4.8 x F1 / 7,000 N
    Tube diameter28 mm
    Piston rod diameter10 mm
    min. installation length excluding eyelet2.6 x stroke + 85 mm
    Stroke C 10 - 300 mm
    Extension forces F1 80 - 1,000 N
    Progression (F2/F1)< 1.6
    Release force 0.25 x F1 N
    Release travel, short< 0.5 mm
    Release travel, normal2.5 ≤  x ≤ 3.5 mm
    Recommend installation lengthPiston rod facing down
    Permissible operating temperature-20°C to +60°C
    Permissible storage temperature-20°C to +80°C
    Possible special functions:
    AntiShock ASx
    EasySwitch ESx
    TimeReset TRx
    OverRide OR-
    ComfortReleaseLow CLx

     

    Application Examples

    • Tilt adjustment of massage, treatment and transport beds (stretchers)
    • Tilt adjustment of steering columns on construction and agricultural machines
  • Model HY6

    Due to the arrangement of the oil chamber, the locking in the compression direction is rigid up to the mechanical load limit, regardless of the filling force. The special two-pipe design ensures a particularly low force increase during long strokes. This makes applications possible that require extremely long strokes with a short design and yet force-independent rigid locking in the compression direction.

     

    SpecificationHY6
    Lockingrigid in the compressive direction
    in the compression direction:
    rigid to/max. Load
    1,200 N
    in the extension direction:
    rigid to/max. Load
    1.6 x F1 N / 1,200 N
    Tube diameter27 mm
    Piston rod diameter10 mm
    min. installation length excluding eyelet2 x stroke + 110 mm
    Stroke C10 - 450 mm
    Extension forces F170 - 400 N
    Progression (F2/F1)< 1.6
    Release force0.25 x F1 N
    Release travel, short< 0.5 mm
    Release travel, normal2.5 ≤  x ≤ 3.5 mm
    Recommend installation lengtharbitrary
    Permissible operating temperature-10°C to +60°C
    Permissible storage temperature-20°C to +80°C
    Possible special functions:
    AntiShock AS-
    EasySwitch ES-
    TimeReset TR-
    OverRide ORx
    ComfortReleaseLow CLx

     

    Application Examples

    • Height-adjustment of hospital bedside tables (server / overbed table)
    • Height-adjustment of bistro tables, desks, coffee tables
    • Height-adjustment of seat posts and steering assemblies for training and fitness equipment
  • Model VOB 18-1

    Due to the arrangement of the oil chamber and the valve at the end of the pipe, the locking in the compression direction is rigid up to the mechanical load limit, regardless of the filling force. The special two-pipe design ensures a particularly short design. This makes applications possible that have an extremely narrow installation space and yet require a force-independent rigid locking in the compression direction.

     

    SpecificationVOB 18-1
    Lockingrigid in the compressive direction
    in the compression direction:
    rigid to/max. Load
    3,000 N
    in the extension direction:
    rigid to/max. Load
    1.5 x F1 N
    Tube diameter28 mm
    Piston rod diameter10 mm
    min. installation length excluding eyelet2 x stroke + 90 mm
    Stroke C20 - 300 mm
    Extension forces F1150 - 1,000 N
    Progression (F2/F1)< 1.7
    Release force0.4 x F1 N
    Release travel, short-
    Release travel, normal2.5 ≤  x ≤ 3.5 mm
    Recommend installation lengthPiston rod facing down
    Permissible operating temperature-20°C to +60°C
    Permissible storage temperature

    -20°C to +80°C


    Application Examples

    • Tilt adjustment of massage tables

 

As a system supplier, we offer different end fittings and release systems that are specially tailored to the respective application for our lockable gas springs Varilock. This ensures an optimal function of the lockable gas springs.

SUSPA® Inc.

Phone 616.241.4200

Fax 616.531.3310

sim@us.suspa.com

Kontakt-Formular Kontakt-Formular Kontakt-Formular

SUSPA® Inc.

Phone 616.241.4200

Fax 616.531.3310

sim@us.suspa.com

Kontakt-Formular Kontakt-Formular Kontakt-Formular

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SUSPA® locking gas springs offer comfort and safety in many applications.