JACKS FOR CHAIRS

(Catalogue number 025 801) is a hermetically closed hydraulic unit for adjustment of the seat height. Perfect functionality is ensured when adjusting the vertical position of the seat using a control lever under the seat. The seat is lifted by means of repeated pressing of the lever with the foot up to 4/5 of its total stroke; lowering of the seat is achieved by pressing the control lever within the range of 1/5 of its stroke.

Technical data :

Work stroke (0 to 140) mm

Number of full control lever swings to reach a full stroke ~ 11

down from upper position at full step-down on the lever ( 2 _ 1 )s

Seat suspension at load of (1000 - 200) N

- during first minute max. 0.5 mm

- after one minute max. 0.1 mm/min.

Ambient temperature (-20 to +55)°C

Work fluid oil oil OH-HM 46

Work fluid volume per filling 0.15 dmª

Weight of filled device max 5.2 kg

Warranty (mechanical) period for 1 year from dispatching

For special applications we carry the following seat jacks:

Cat. No. 025 802 – differs from basic type by a welded-on steel plate for anchoring a barber chair at a desired angle.

Cat. No. 025 804 - differs from basic type by a device that prevents the seat jack from rotating

JACKS FOR BEDS

is a hermetically closed hydraulic unit for manual/mechanical or foot-activated adjustment and fixation of desired position of a broad range of hydraulic devices (hospital beds, seats, tables, etc.). Lifting is achieved by means of swinging the control lever, seat suspension is only possible under stress by positioning the control lever in the desired direction.

We offer the following types with these technical parameters:

Type: Z 12-20/140 (Cat. No. 023 814)

Piston rail stroke (140 - 5) mm

Number of full control lever swings to reach a full stroke 18 + 2

Geometrical pump volume per swing ( 2 + 0.3 )cmª

Maximum piston rail force 1 0 000 N

Maximum torque moment on control shaft 112,5 Nm

Work fluid oil OH-HM 46

Work fluid volume per filling 0.2 dmª

Speed of piston rail plug-in adjustable with a regulation screw

Work fluid temperature (-20 to +80) °C

Ambient temperature (-20 to +55) °C

(short rinsing with water is permissible at 90 °C, maximum, or with steam at 130 °C, maximum, for up to 10 minutes, maximum)

Weight of filled device 2.6 kg

For special applications we offer the following bed jack:

ZP 12-20/140 (Cat. No. 024 814) - differs from basic type by optional lowering to bottom position with an additional lever.

Type: Z 12-20/200 (Cat. No. 023 820)

Piston rail stroke (200 - 5) mm

Number of full control lever swings to reach a full stroke 26 + 2

Geometrical pump volume per swing ( 2 + 0.3 )cm3

Maximum piston rail force 1 0 000 N

Maximum torque moment on control shaft 112.5 Nm

Work fluid oil OH-HM 46

Work fluid volume per filling 0.3 dm3

Speed of piston rail plug-in adjustable with a regulation screw

Work fluid temperature (-20 to +80) °C

Ambient temperature (-20 to +55) °C

(short rinsing with water is permissible at 90 °C, maximum, or with steam at 130 °C, maximum, for up to 10 minutes, maximum)

Weight of filled device 2.8 kg

For special applications we offer the following bed jack:

ZP 12-20/200 (Cat. No. 024 820) - differs from basic type by optional lowering to bottom position with an additional lever.

Type: Z 12-20/400 (Cat. No. 023 840)

Piston rail stroke (400 _ 1.5) mm

Number of full control lever swings to reach a full stroke 32 + 2

Geometrical pump volume per swing ( 4 + 0.3 )cmª

Maximum piston rail force 4 000 N

Maximum torque moment on control shaft 67,5 Nm

Work fluid oil oil OH-HM 46

Work fluid volume per filling 0.6 dmª

Speed of piston rail plug-in adjustable with a regulation screw

Work fluid temperature (-20 to +80) °C

Ambient temperature (-20 to +55) °C

(short rinsing with water is permissible at 90 °C, maximum, or with steam at 130 °C, maximum, for up to 10 minutes, maximum)

Weight of filled device 4.8 kg

For special applications we offer the following bed jacks:

Cat. No. 023 841 - differs from basic type by double-sided control-shaft terminal.

Cat. No. 023 842 - differs from basic type by 3-piston version and faster stroke per control lever motion.