DC-Type / Double Acting Absorber
Gas-hydraulic industrial shock absorber / COMPENSER®
With the DC-Type (double-acting shock absorber), LEBEN offers a highly space-saving hydraulic industrial shock absorber for a wide range of applications.
The The COMPENSER® of the DC series is an ideal hydraulic shock-reduction element for warehouse logistics applications (stacker cranes). As a double-acting shock absorber, this industrial shock absorber can be used in a space-saving manner due to its design and can be actuated alternately from both sides. The design and function correspond to the C-Type. In addition, operational approach in creep mode is possible without any issues due to the low retracting force. Optional equipment includes, for example, PU elastic caps as an impact cap insert for noise minimization and electronic extension monitoring (as an inductive or magnetic sensor). If only a slightly increasing retracting force over the entire stroke is desired, an additional accumulator can be mounted on the buffer to increase the gas accumulator volume. This reduces the retracting force in the retracted state. Due to the modular design, maintenance and simple repairs can be carried out on this shock absorber on site by the customer’s own personnel.
Applications:
- DC-Type shock absorber for miniload, intralogistics and warehouse technology
- Double Acting Absorber for stacker cranes and AS/RS
- Space-saving end stop for high rise storage facilities, small parts warehouses, and shuttle systems
- Double-acting buffer for trolleys, stackers, and conveyor technology
- Shock reduction for conveyors, transfer cars, and horizontal movements
- Hydraulic shock absorber for air cargo, air freight warehouses, and automated warehouses
- End position damping for automation, material flow, and custom machine design
- Mounting position: horizontal
- low retracting force
- Space-saving, double-acting shock-reduction element
- high buckling resistance
- Surface: housing zinc-plated (standard) or painted, piston rod hard chrome-plated (standard)
- low-viscosity COMPENSOL®
- Foot mounting or flange mounting
- optionally constant reaction force over the entire stroke or increasing reaction force in the front stroke range
- very short activation time after impact
- Temperature range -40 to +80 °C
- Energy conversion up to 240 kNm
The piston rod 2 enters the metering tube 3. The damping medium flows from the working chamber 6 through the throttle bores 4 of the metering tube 3 into the compensation chamber 5. The nitrogen gas between the outer tube 7 and metering tube 3 is compressed and stores the energy required for retraction. During retraction of the piston rod 2 to its initial position, the damping medium flows back into the working chamber 6.
Designations
1 Impact cap
2 Piston rod
3 Metering tube
4 Throttle bores
5 Volume compensation chamber
6 Working chamber
7 Outer tube
8 Rear flange
- Additional accumulator to reduce the retracting force and to separate the damping medium phase from the nitrogen gas phase, e.g. in the case of operational load cycles
- Sensor for signalling the operational readiness of the shock-reduction element (inductive, magnetic and explosion-protected in accordance with ATEX)
- integrated monitoring of fill levels
- Maintenance connection for filling damping medium and nitrogen gas
- specific materials, e.g., stainless steel for highly corrosive environments or use in the food industry
- high-quality corrosion protection according to DIN EN ISO 12944 up to corrosivity category C5M
- Bellows as optimal protection against dust, dirt or corrosive media
- maintenance-free mechanical retraction of the piston rod by means of compression spring
- safe use in automotive & food industry through appropriate COMPENSOL®
- Special COMPENSOL® for use in extreme temperature ranges
- Valve to minimize retraction time
- Valve to minimize compression force during operational load cycles
- Drive energy consumption (throttling)
- End position damping
- optionally round or square flange on front or rear side
- Foot mounting (welded or flanged)
- Special mounting elements according to the customer’s required geometry
- PU impact cap for noise reduction
- Special impact cap upon customer request and for special applications (e.g., catching impact cap for two colliding impact caps)
- Safety wire rope on the piston rod
- Special seals for use in extreme temperature ranges
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D-86987 Schwabsoien
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