/KNUCKLE BOOM CRANE | JL SERIES

KNUCKLE BOOM CRANE | JL SERIES

MELCAL JL series, knuckle boom pedestal cranes, offer excellent operational performance and safety features that your operators can rely on.

The well-conceived design, superior components and excellent build quality of our JL knuckle boom cranes facilitates straightforward serviceability to help our clients maintain the highest operational safety levels.
 
MELCAL’s JL series is designed for ship board and offshore use alike, and our cranes are featured onboard different vessel types and offshore units.

Depending on the crane’s application, we offer certification by all major classification societies and a broad set of available accessories. MELCAL JL cranes are available for lifting capacities ranging from 10 – 5.000mt.
 

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SKU: 0003

FEATURES & BENEFITS

PERFORMANCE SAFETY MAINTENANCE DURABILITY
Compact design for versatile applications Compliance with the most demanding safety rules and regulations Low lifecycle cost with few parts to maintain Heavy duty construction allowing operation in the harshest environments
Smooth and precise step-less controls Safer control of movements Easy access to routine maintenance points Superior design through Finite Element Analysis
Simultaneous operation of two or more functions Built in monitoring systems Remote trouble shooting Reliable long service life guaranteed through the use of high quality reputable components, extensive endurance testing and easy future upgrades
Powerful high torque slewing system with automatic brake Overload protection Extensive documentation packages Norsok M-501 corrosion protection
Load-sensing closed-center hydraulics resulting in faster cycle times and reduced power consumption
Simple controls assure a user friendly product and operator confidence

GENERAL SPECIFICATIONS

Lifting capacities (T) 1-50 Lifting heights (m) 10-1500
Overturning moments (mt) 10-5000 Outreach (m) 3-30
Hoisting speeds (m/min) 5-120 Design temperature (°C) -40/+60
Luffing time (sec) 30-200 Area classification Safe zone / Zone I & II
Slewing speeds (RPM) 0.5-2 Power supply (V) 400/440/690/220
Slewing angle (°) 360 Design pressure (bar) 180-300

STANDARD EQUIPMENT

PERFORMANCE SAFETY MAINTENANCE
360° continuous rotation Emergency stop button Stainless steel pipes
Ball bearing slewing ring Dead man control levers Stainless grease fittings
Precise step-less speed control Load limiting device Self lubricating bronze bushings
Simultaneous operation of two or more functions Load holding valves Stainless steel bearings
Pressure gauge Slew fail safe brakes Norsok M 501 Marine treatment
Load-sensing closed loop Slew shock absorber valve Structural bolts hot dip galvanized
Pressure filter Hoist fail safe brakes Non structural bolts stainless steel A4-80
Ergonomic operator stand Anti two block device Stainless steel junction boxes
Design temperature -20/+40°C Emergency hand pump Stainless steel tagging system
Marine trifoliate labeling system

OPTIONAL EQUIPMENT

PERFORMANCE SAFETY MAINTENANCE ACCESSORIES
Ergonomic operator cabins Audible / visual alarm(s) Centralized greasing point Floodlights LED
Offshore operator cabins (EN 13852) Emergency operation system (EOS) Automatic centralized greasing system Aircraft warning lights
Radio remote controls Constant Tension system (CT) Water separator filter Warning and working lights
Remote operator control stands Manual Overload Protection System (MOPS) El motor space heater Access baskets
AHC – Active Heave Compensation Automatic Overload Protection System (AOPS) El motor condition monitoring system Self contained power pack
Arctic packages up to – 50”C Data logger Metalizing marine treatment Hydraulic power units (HPU)
Personnel lift package Remote access system Stainless steel fittings Diesel power units
Man riding package Anti collision systems Stainless steel piston rods Lebus grooved hoist drums
Low hydraulic pressure operation Sea state selectors Ceramic cylinder coatings Wind socket
Hazardous zone operation (ATEX) Heel/trim indicator Power pack machinery room Increased pedestal heights
Air oil coolers Shock absorber systems Specific tagging and labeling systems
Sea water oil coolers Dacon scoop package  
Oil tank heating Hoist load limiting device  
Load Monitoring System (LMS)    
HMI Control panel (Multilanguage)
CCTV
Crash frame for operator cabin
Handrails and guarding
Loud speakers
VHF / UHF
Gas detectors
Dropped object management

MODELS

CRANE MODEL MAX SWL (t) MAX SWL (lbs) MAX OUTREACH (m) MAX OUTREACH (ft) MAX  LIFTING MOMENT (mt) MAX  LIFTING MOMENT (ft_lbs) CRANE WEIGHT (t) CRANE WEIGHT (lbs)
JL25 2 4,409 8-12 26,2-39,4 19 137,427 3 6,614
JL30 3 6,614 8-12 26,2-39,4 24 173,592 3,5 7,716
JL50 4 8,818 8-14 26,2-45,9 37 267,621 4,2 9,259
JL75 6 13,228 8-20 26,2-65,6 65 470,145 6,5 14,330
JL100 10 22,046 8-20 26,2-65,6 102 737,767 8,5 18,739
JL150 12 26,455 10-22 32,8-72,2 126 911,359 11 24,251
JL250 15 33,069 12-24 39,4-78,7 185 1,338,106 16 35,274
JL300 15 33,069 14-24 45,9-78,7 235 1,699,756 21 46,297
JL500 25 55,116 14-26 45,9-85,3 415 3,001,697 23 50,706
JL800 35 77,162 16-30 52,5-98,4 641 4,636,357 34 74,957
JL1200 40 88,185 20-30 65,6-98,4 935 6,762,860 43 94,799

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