Speed adaptation system Heavy Duty Lifting
HDL-h is an electro-hydraulically acting speed adaptation system, which ensures that the speed of the crane is automatically reduced in case of a load moment exceeding 90%.
Item code: 91002
A hydraulic full-flow HDL-h valve with electric activation regulates the oil flow for the control valve to either 100% or 20% of the nominal oil flow. In case of a capacity (load or stability) of 90%, a signal is sent via the RCL to the HDL-h valve, and the valve changes from 100% to 20% nominal oil flow.
Benefits:
- The dynamic additional forces in the steel construction of the crane are reduced
- The crane's life span is extended
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