CRANE BUFFERS

Powerful Damping Solutions for Heavy-Duty Applications
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The large series delivers exceptional energy absorption for demanding applications requiring substantial damping capacity. Characterized by their robust and heavy-duty construction, the outer body of each damper is engineered for durability and often features a continuous thread and included lock nut for secure mounting. Filled with high-performance, temperature-stable oil, these units ensure reliable and consistent operation even under significant loads. An integrated positive stop enhances their durability and prevents over-compression. These heavy-duty hydraulic machine elements from RAR are designed for straightforward installation and minimal upkeep.
Offering a significant range of energy absorption and the capacity to handle substantial effective weights, these large shock absorbers are the ideal choice for applications such as heavy machinery, construction equipment, and large-scale automation systems.
Technical Data
Energy capacity: 9,100 Nm/Cycle to 582,000 Nm/Cycle
Impact velocity range: 0.5 m/s to 4.6 m/s. Other speeds on request.
Reacting force: At max. capacity rating = 110 kN to 1.000 kN
Operating temperature range: -20 °C to +60 °C. Other temperatures on request.
Mounting: In any position
Positive stop: Integrated
Material: Outer body: Painted steel; Rod end button: Steel; Piston tube: Hard chrome plated steel
Damping medium: Silicone based Elastomer Oil, temperature stable
Filling pressure: Approx. 5 bar. Rod return by integrated nitrogen accumulator.
Application field: Shelf storage systems, Heavy load applications
Note: The shock absorber can be compressed throughout its stroke. In low-speed conditions, it provides minimal resistance with no braking effect.
On request: Special oils, special flanges, additional corrosion protection etc.
Product Portfolio
HDM80

HDM80 crane buffers provide robust, reliable impact absorption for heavy-duty crane systems. They dissipate kinetic energy, safeguarding the crane and load, enhancing safety, and ensuring smooth, controlled deceleration.
HDM120

HDM120 crane buffers provide robust, reliable impact absorption for heavy-duty crane systems. They dissipate kinetic energy, safeguarding the crane and load, enhancing safety, and ensuring smooth, controlled deceleration.
HDM180

HDM180 crane buffers provide robust, reliable impact absorption for heavy-duty crane systems. They dissipate kinetic energy, safeguarding the crane and load, enhancing safety, and ensuring smooth, controlled deceleration.
Technical Specification Chart of Crane Buffers

Accessories for Crane Buffers

Front & Rear Flange
Have more questions? Email us at info@shockbuffer.com