280 kNm knuckle boom crane


MKG hydraulic marine crane, model HMC291HP, knuckle boom type with special crane base for stationary mounting, cranked column in all-steel design, slewing ring gear with slewing gear assembly and hydraulic slewing connections for 360° continuous slewing (slewing torque 33,3kNm), jib up to 8-times hydraulically extendable under load to max. reach of 21,0m. All rams are double acting and the piston rods are hard chromium plated, complete hydraulic system consisting of:


One lifting ram, one jib ram, extension rams, slewing gear, Danfoss control valve block with individual control valves (high precision) plus load holding valves at all cylinders and overload protection valves. HBC radio remote control consisting of transmitter and cross-lever controls, receiver, charger with 2 re-chargeable batteries, add. cable control, automatic frequency-search at start-up, emergency-off, multiple-speed choice, portable controls (option: waterproof). Black box with digital display in a stainless steel housing. Load holding valves and overload protection device. Special damping control by pressure reservoir to minimize centrifugal forces acting on the load-bearing components. Emergency shut-off button at all controls and visual warning device according to CE-standard.


Hydraulic winch 4.000kg cap. at single line/1st layer resp. 3.300kg/3rd layer, average speed 35m/min at 80l/min. oil flow, rope dia. 12mm (spin-resistant), rope length 55m, Control valve, pulley and safety hook.


KTL-treatment of steel structure, i.e. electrostatic coating process (cataphoretic painting in accordance with corrosion protection class C5, DIN EN ISO 12944-2) against corrosive environment, crane base - St 52-3, column/booms - St e 460, cylinder tube - St 52-3, piston rods – twice chromium plated (option: stainless steel), bushings - seawater proof bronze, (optional: hose-ends/clamps/ piping in stainless steel), sandblasting, 300µ-coat colour system, painting RAL 9005 - black.


This crane is manufactured according to German Standard DIN 15018 resp. EN 12999 to meet marine specifications for provision/service crane type "A". Min. 5° heel and 2° trim with full load.

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