Damper ZDH
Bi-directional dampers for sliding lift doors
Characteristics
- The DICTATOR sliding door dampers of the ZDH series are bi-directional hydraulic dampers for an impact speed up to 2.0 m/sec. A single damper will slow down and damp the door in the final stages. For this purpose the damper is fixed to the door and corresponding limit stops have to be provided in the respective open and closed position.
- All DICTATOR dampers of the ZDH series are adjustable. This allows the door to be adjusted to an optimum function.
- Depending on the requirements we offer different ZDH types: with automatically extending piston rods, with the piston rods pushing/extending one another or with one piston rod extending automatically and one being pushed by the other.
Product details
Technical data
Diameter piston rod | 8,5 |
Diameter cylinder | 28; 35 |
Material | steel zinc-plated |
Dimensions
All dimensions in mm
* height of the buffer with stepped adjustment: 25 mm
** height of the buffer with adjustment screw: 15 mm
Type | Measure A | Measure B | Measure C | Measure D | Adjustment | Make of lift | Part No. |
---|---|---|---|---|---|---|---|
ZDH 50/50 BG | 50 | 137 | 297 | 28 | screw adjustment | - | 210110 |
ZDH 50/50 a | 50 | 137 | 297 | 28 | screw adjustment | - | 210000 |
ZDH 50/50 a/EG/P | 50 | 220 | 400 | 28 | stepped adjustment | Rathgeber | 203190 |
ZDH 60/80 a | 60/80 | 260 | 484 | 28 | stepped adjustment | 210420* | |
ZDH 70/70 a/EG/P | 70 | 260 | 480 | 28 | stepped adjustment | Rathgeber | 203191 |
ZDH 55/55 BG | 55 | 132 | 255 | 33 | stepped adjustment | Rathgeber | 203195** |
ZDH 120 BG | 120 | 208 | 408 | 28 | stepped adjustment | Stahl, width up to1300 m | 203162*** |
*: On the side with the 60 mm piston rod, the length of the thread is 44 mm
**: Ø 12 mm piston rod, M 24 x 1 mm thread on one side, 17 mm long
***: with relief groove
Key:
a: automatically extending piston rod
a/EG: one piston rod extending automatically, one piston rod pushed outwards by the other
BG: piston rods move each other to the outside
P: progressive damping
Installation
Installation notes
The bi-directional ZDH dampers are mounted on the cabin door. They dampen the door in the final open position as well as in the final closed position. This requires a mechanical limit stop for the damper in both positions.
The damping force can continuously be adjusted to the requirements on site. Both piston rods are adjusted separately.
Dampers with stepped adjustment (ZR):
Pull out the piston rod completely and the turn it while still pulling.
Dampers with adjustment screw (NR):
Here the damping force is adjusted by an adjusting screw in front of the piston rod. It is accessible through a boring in the buffer.
Installation instructions
Order information
Order Information
Description | Part No. |
---|---|
Final damper ZDH 120/120 bg, Ø 28, stepped adjustment, with pressure relief groove | 203162 |
Final damper ZDH 55/55 bg, Ø 28, stepped adjustment | 203195 |
Final damper ZDH 70/70 aeg p, Ø 28, stepped adjustment | 203191 |
Final damper ZDH 60/80 a, Ø 28, stepped adjustment, ABS | 210420 |
Final damper ZDH 50/50 aeg p, Ø 28, stepped adjustment | 203190 |
Final damper ZDH 50/50 a, Ø 28, screw adjustment | 210000 |
Final damper ZDH 50/50 bg, Ø 28, screw adjustment | 210110 |
Downloads
File Name | Type |
---|---|
Documents | |
Catalog: Door dampers for sliding lift doors |