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.

Type

HY3

Valve actuation

 On the piston rod side

Tube

Diameter 28 mm

Locking in the extension direction:
rigid up to

max. 7,000 N

Locking in the compression direction:
rigid up to

5.8 x F1
max. 10,000 N

Characteristics

Max. locking in the tensile direction

 

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.

 

Specification

HY3

Locking

Rigid in the tensile direction

in compression direction:
rigid to/max. Load

5.8 x F1 / 10,000 N

in extension direction:
rigid to/max. Load

7,000 N

Tube diameter

28 mm

Piston rod diameter

10 mm

min. installation length excluding eyelet

2.4 x stroke + 76 mm

Stroke C

10 - 450 mm

Extension forces F1

80 - 1,000 N

Progression (F2/F1)

< 1.5

Release force

0.25 x F1 N

Release travel, short

max. 0.5 mm

Release travel, normal

2.5 ≤ x ≤ 3.5 mm

Recommend installation length

arbitrary

Permissible operating temperature

-20°C to +60°C

Permissible storage temperature

-20°C to +80°C

 

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

 

Type

Tube (mm)

Piston rod (mm)

Stroke (mm)

Extension force* F(N)

Color tube

Color piston rod

Type of locking

HY3

28

10

20 - 250

200 - 1,000

back

Tenifer

rigid

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

 

Extended length Lout

Compressed length Lin

Stroke (mm)

Order number

130

110

20

02852488

160

130

30

02852489

190

150

40

02852490

230

170

60

02852491

270

190

80

02852492

330

230

100

02852493

390

270

120

02852494

470

310

160

02852495

570

370

200

02852496

710

460

250

02852497