HY3 - Locking gas springs with rigid locking

Rigid locking is used in the extension 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.

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 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.

Application Examples

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

Accessories

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

Standard program

 * The extension force is selectable in steps of 50 Newton.