Hydraulic System For Davit And Crane

In case of power, the electric motor drive the hydraulic pump to supply hydraulic oil. During
luffing, the hydraulic oil drive the oil cylinder to push the davit out, while lowering workboat/rescue
boat, the hydraulic oil drives the winch to lower boat till to water surface. While recovering, the boat
winch lift the boat to the head of davit arm firstly, then the davit and boat recover to stowed position
under the action of oil cylinder.
In case of failure of power, the oil in the accumulator drive the oil cylinder to push the davit out,
then by remotely controlling the manual handle, the boat will lower to water surface depending on its
gravity. At this time, this appliance can turn out to lower only, can’t recover the boat and boat davit.
At the same time, the manual handle may be also used for supplying power to the system, at this time,
it may be operated based on the condition in cased of power.

• Main power supply 440 V/ 60 Hz/ 3 Phase
• Power of pump station 75 kw
• Main power supply 440 V/ 60 Hz/ 3 Phase
• Power of pump station 75 kw

• Motor in compliance with IEC requirement: V Yes
• Motor insulation class: V F
• Motor protection class: V IP56
• Motor with cable gland: V With
• Motor with earth bolt: V With
• Motor with space heater: AC 220 V/60 Hz/1ФV With
• Motor start method: V Y/ΔStart