Crane Spec and Crane Charts

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7/23/2019 Crane Spec and Crane Charts http://slidepdf.com/reader/full/crane-spec-and-crane-charts 1/17  HYDRAMARINE  TECHNICAL PROJECT DOCUMENT This document and all information and data herein or herewith is the confidential and proprietary property of HYDRAMARINE AS and is not to be used, reproduced or disclosed in whole or in part by or to anyone without the written confirmation from HYDRAMARINE AS. © Hydramarine AS Equipment:  Active Heave Compensated Offshore Knuckle Jib Crane Model: HYDRAMARINE HMC 4240 LKO 400-35(2000-12)(2500-10)(100-36) AHC Main data: Main winch: SWL 200 tons single line, 2500 m drum capacity, 2550 m wire included SWL 50 ton single line at max 30 meter outreach SWL 100 tons single line at max 20 m outreach SWL 200 tons single line at max 12 m outreach SWL 250 tons double line at max 10 m outreach  Active Heave Compensated (Semi active) Dynamic factor 1,4 on crane in general Crane pedestal, slew ring and king designed with dynamic factor 2,0, Required deck moment: Approx 6000 ton meter  Au xi li ary wi nch : SWL 10 to ns s in gl e li ne, 150 m hoo k t ravel , 200 m w ir e in cl ud ed SWL 10 ton single line at max 36 meter outreach Designed for man riding SWL 5 tons 2 Issued for Client approval 27.02.07 KJN SEH 1 Updated according to Order Cinfirmation of 23.06.2006 05.09.06 KJN ØYB 0 Issued for information 21.04.06 SEH ØYB Rev. Reason for issue: Date Auth. Check. Title: Technical specification – Offshore Knuckle Jib Crane Customer: Kleven Verft AS Project name.: New building 320 – 321 

Transcript of Crane Spec and Crane Charts

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HYDRAMARINE 

TECHNICAL PROJECT DOCUMENT

This document and all information and data herein or herewith is the confidential and proprietary property ofHYDRAMARINE AS and is not to be used, reproduced or disclosed in whole or in part by or to anyone without thewritten confirmation from HYDRAMARINE AS.

© Hydramarine AS 

Equipment:

 Acti ve Heave Compensated Offshore Knuckle Jib Crane

Model:

HYDRAMARINE HMC 4240 LKO 400-35(2000-12)(2500-10)(100-36) AHCMain data:

Main winch: SWL 200 tons sin gle line, 2500 m drum capacity, 2550 m wir e included

SWL 50 ton single line at max 30 meter outreachSWL 100 tons single line at max 20 m outreachSWL 200 tons single line at max 12 m outreachSWL 250 tons double line at max 10 m outreach

 Active Heave Compensated (Semi active)Dynamic factor 1,4 on crane in general

Crane pedestal, slew ring and king designed with dynamic factor 2,0, Required deck moment: Approx 6000 ton meter

 Auxi liary wi nch : SWL 10 tons s ingle line, 150 m hoo k t ravel , 200 m w ire included

SWL 10 ton single line at max 36 meter outreachDesigned for man riding SWL 5 tons

2 Issued for Client approval 27.02.07 KJN SEH

1 Updated according to Order Cinfirmation of 23.06.2006 05.09.06 KJN ØYB

0 Issued for information 21.04.06 SEH ØYB

Rev. Reason for issue: Date Auth. Check.

Title:

Technical specification – Offshore Knuckle Jib Crane

Customer:

Kleven Verft ASProject name.:

New building 320 – 321 

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 Document: Technical specification

Doc. No: TS.HMC.4240.0015Revision: 0Page: 2 of 13

OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

H Y D R AMARINE

1 TECHNICAL DESCRIPTION:

1.1 GENERAL INTRODUCTION:

The HYDRAMARINE HMC 4240 LKO 400-35 (1000-20)(2000-12)(2500-10)(100-36) AHC offshore / sub seaknuckle jib crane is designed for long time operation and stowing in a tough and corrosive offshore marineenvironment. The crane is designed with major structural and mechanical over capacity for heavy offshore /sub sea operation on open deck of offshore vessel and for safe stowing on aft deck of such vessel.The crane is designed with a general crane dynamic factor of 1.4 and a pedestal / slew ring / fasteners isdesigned with dynamic factor of 2.0 according to DNV requirement for offshore crane.

The crane is designed for efficient and accurate offshore/sub sea load handling of general cargo at max. 35 /36 meter working radius. The jib has a hydraulic knuckle jib with a length of approximately 15 meters givingthe crane good operation capabilities under rough operation conditions (low pendulum height under offshorelifting operations).

The crane is equipped with an active heave compensation system on the main winch making the crane ableto launch and retrieve loads at seabed, with practical no relative heave motion on the load related to seabed.The heave compensation system is a semi active system based on direct winch compensation.

The crane is delivered as a complete, fully painted, fully pre-assembled and function tested unit, adjusted andready for installation onboard vessel in accordance with our procedures. The crane is delivered as a completeunit, fitted with welded edge in low part of pedestal for easy installation at vessel. The crane is a complete,hydraulic operated, independent, self contained unit.

The crane is operated from the fully insulated operator’s cabin on the rotating part of the crane itself. Allselected equipment is chosen and installed to ensure the lowest possible emission of sound and for goodaccess for service and repair.

1.2 CONSTRUCTION, MAIN DESIGN:

1.2.1 CRANE PEDESTAL INCL. EQUIPMENT FITTED IN PEDESTAL:

The crane pedestal consists of a circular top and low end.

The total pedestal has a total height between the low welded edge, and slew ring flange of 5 meters. Thepedestal contains the vertical mounted electric slip ring for transfer of all electric supply to the rotating part ofthe crane. Electric interconnection from vessel system to be done in junction box at the slip ring.

The electric main motors with their hydraulic pumps and the oil tank are located in the above located rotatingking. The upper part / outside of the pedestal is equipped with a top mounted ring platform, mounted approx. 2m below the foundation top, ensuring access to crane in all positions and access to this platform is done by aladder with safety frame fitted. A hinged access door is fitted in lower part of the pedestal for access insidepedestal. The inside of the pedestal is equipped with access ladder and cable supports for easy terminationand inspection/maintenance.

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

H Y D R AMARINE

1.2.2 CRANE KING INCL. EQUIPMENT FITTED IN KING:

The rotating crane king is installed on top of the rotating slew bearing. The king acts as the main structuralelement between the pedestal and the jib system. The luffing cylinders are connected to the lower part of theking while the inner jib is connected to the top of the king by spherical bearings. The king structure houses thehydraulic oil reservoir and general machine room where most control valves are fitted. Access to this machineroom is ensured by a hinged door at cabin side. The maneuvering platform structure with the operator’s cabinis fitted at right hand side of the crane king.

 A set of internal fitted, fully integrated slew gears are fitted to the king, with its output pinions in conjunctionwith the inner geared slew bearing ring. Each slew gearbox has built in failsafe brakes and each are fitted withan axial piston motor of variable displacement.

 A Elect ri c motors with motor starters:

Each motor has it own star/delta starter unit. Each main motor has separate power lines from vesselide, through slip ring, starter unit and to the actual main motor.The electric power is supplied from the slip ring (rotating side) to the electric motor starter cabinetsmounted inside a separate housing for starter cabinet located on the hydraulic platform. The electricmotors are connected to the cabinet. The electric main motors are mounted inside the crane pedestalbeneath the king floor. The main electric motors are all equipped with a heating element whichreduces its moisture level during long time standstill.

B Hydraulic oil tank/hydraulic pumps:

The hydraulic oil tank of required capacity is integrated as part of the rotating crane king structure.The hydraulic main pumps are of high pressure, low noise variable displacement type and is mountedon flexible dampeners outside the oil tank, to reduce the noise level to an absolute minimum. The tankis equipped with visual oil level indication glass, breather filter, oil filling filter, and a drain valve for usewhen changing oil and cleaning of the oil tank.

Both oil level and oil temperature sensors are measuring the hydraulic oil status continuously and willgive information to the crane operator if any abnormal value is registered. Access to tank is possible

through inspection hatch in side of crane king.

The hydraulic oil is not included in scope, however a list of recommended hydraulic oils will beprovided.

C Hydraulic Filter system

 A well dimensioned oil return filter system is installed in the system to remove any impurities from thehydraulic oil returning from the system to the tank. A well dimensioned separate oil filter is installed ina separate circulation system to remove any contamination in hydraulic oil, continuously, when thecrane is running. Large oil/air coolers are fitted in the circulation loop to ensure low oil temperature,

even with continuously crane operation under warm conditions. The filters are equipped with visualcontamination indicators and electric switch which is connected to the control system in the cranecabin, informing the crane operator if any abnormal value is registered. The filtration level is 5 micronnominal and system contamination level is set to NAS class 8.

 A separate offline filter type CJC is fitted in system to maintain the hydraulic oil and keep thecontamination level low, even when crane is not in use.

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

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E Operator cabin:

The crane is equipped with a well dimensioned operator cabin representing a comfortable work placefor the crane operator. The cabin is equipped with one main seat and one foldable co-pilot seat forcrane instructor etc. The cabin is located on right side of the crane king. The cabin is bolted to astabile steel foundation, which is bolted to the crane king structure. A protective steel structure issurrounding the cabin to protect this against damage if other elements hit the cabin area. Theoperator cabin is equipped with an ergonomic and dampened operator chair with all main operationhandles of joy stick type located in armrests at side of the operators chair. Main handles are of springcentered type, winch and knuckle jib on right hand side, main jib operation and slew at left hand side.The cabin is equipped with windows wipers, signal horn, internal light, air conditioning / heatingsystem and houses the main cabinet for the crane control system.

 A LCD screen based control system gives the crane operator all required information for both cranesystem status and operation. The main control system for the crane is electronic and if a crane motionshall be stopped due to action from the crane control system, the control signal is cut-off, and theactual crane motion is stopped softly.The cabin is equipped with a catwalk outside to give access for cleaning of the windows. A stereoradio/CD player is fitted. A separate LCD screen for camera monitoring of winch drums is fitted nearoperator

 All cabin windows are equipped with roll screens to protect the crane operator against direct sunlight.

The screens are adjustable. Several of the windows are equipped with opening systems. The operatorcabin is fitted with an effective fire extinguisher. The operator cabin fulfills noise and workingenvironment requirements set by the authorities.

F Communication system / ROV monitor signals:

The crane cabin is equipped with a VHF/UHF. The crane slip ring has available 6 extra slip rings forconnection of vessels intercom system or ROV monitor transfer. Available signal lines are terminatedfrom cabin to junction box in pedestal.

1.2.3 WINCH SYSTEMS:

The crane is equipped with two separate winch systems, one main winch fitted on aft part of crane king, andone auxiliary winch fitted on the crane boom. The main winch skid is mounted in the upper/aft part of the kingstructure. The winch skid houses the main winch and all associated equipment including accumulators etc forthe Active Heave compensation system.

Both winches are monitored by cameras and pictures are shown in the crane cabin, on a separate LCDscreen, to keep operator informed about wire spooling etc.

 A Main Winch system:

The main winch consists of a steel drum with a flanged on gear-ring, one on each side of the winchdrum. A required number of drive gears on each side, each driven by a variable displacementhydraulic motor, are fitted. The gear boxes are all fitted with a fail-safe multidisc brake. The brakes aredimensioned to take the full load plus any additional dynamic forces acting on the winch. In the casef h i f il th b k bl k th l d i di t l A t f t b l l

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

H Y D R AMARINE

The winch is also equipped with a high speed auto-tension system with adjustable tension setting.

Both activation (on/off) and tension setting (step-less) is done by operator from crane cabin.

B Main winch unit - Active heave compensator system:

The winch is equipped with an active heave compensation system including constant tension systemwhich can be used to land/retrieve on/from the seabed. The active heave compensation is of so called”semi-active” type and compensate the jib tip resulting heave motion, by giving out/hauling in rope, asa pure position controlled system.

The semi active system uses a fixed Nitrogen pre-charged accumulator system, to balance the winchload and then the active part of the winch will positioning the drum to reflect required compensation

motion. The advantage with the semi-active system is high speed AHC performance with full load andlimited power consumption.

The MRU (Motion Reference Unit) is located in the crane foundation and measures the vessel heave,pitch and roll motion. The crane computer system then calculates the resulting crane tip heave andthe main pump will compensate this resulting heave by giving out/hauling in wire from the drumdirectly.

C Auxiliary winch:

The auxiliary winch consists of a steel drum with two flanged on planetary gearboxes, each driven byvariable displacement hydraulic motor. The gear boxes are fitted with a fail-safe multitask brake. Thebrakes are dimensioned to take the full load plus any additional dynamic forces acting on the winch. Inthe case of a hose or pipe failure, the brakes block the load immediately. A counter balance valve ismounted in the winch loop ensuring smooth and accurate winch operation independent of winch load.

The winch is equipped with a galvanized, non-rotating, high quality sub sea wire rope and a sub searated counterweight/ swivel/hook block of required capacity. The winch system is equipped with anelectronic hook stop system, part of the integrated control system.

The Aux winch is designed and built for man-riding operations with capacity up to 5 tons (MR50)according to valid rules and regulations.

The Aux winch is equipped with an AOPS (Automatic Overload Protection System) and MOPS(Manual Overload Protection System).

Emergency lowering and hoisting of winch is also possible by use of the independent “Emergencypower system”. (separate procedures will be included for use during such situations).

The winch is also equipped with a high speed auto-tension system with adjustable tension setting.Both activation (on/off) and tension setting (step-less) is done by operator from crane cabin.

1.2.4 CRANE JIB SYSTEMS:

The crane jib consists of one hydraulic operated luffing main jib section and hydraulic operated knuckle jibsection. Both jib elements are built of plate elements, steel profiles and hollow sections. The inner main jib isconnected to the king structure by two main bearings in at top of the king and to the rod bearing of the

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

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maintain a constant luffing speed independent of hook load and to block the jib in case of a hose/pipe

failure.

B Jib Floodlight:

The outer crane jib is fitted with two pendulum suspended 400W each, Heavy duty Marine floodlights.

C Helicopter warning light:

The top of the winch and the fwd part of the inner jib is fitted with red helicopter warning lights toindicate crane position during work during dark conditions.

1.2.5 HYDRAULIC SYSTEM:

The crane king houses the oil reservoir for the built in hydraulic system. The hydraulic main pumps aremounted on an adapter flange outside the tank. The hydraulic pumps are of low noise variable displacementtype for closed loop operation. The crane has a required number of dual main pumps, one circulation pumpand one servo pump. In addition a separate “emergency pump”, is fitted to allow emergency operation of allcrane functions, in case of main power black out. The Emergency power pack may be supplied from theemergency generator onboard.

The dual main pumps are driven by electric motors. All pumps are feeding hydraulic power into a commonpump valve block system distributing the power to the actual crane motion, based on signals from the cranecontrol system.

The crane is fitted with a closed loop type semiactive heave compensation system. The majority of the pumpsare running in closed loop circuit to control the AHC both active and passive side.

The hydraulic system is fitted with a separate filtration/cooling pump that ensures full filtration and coolingcapacity, even when crane is operated at creep speed for a long time. This is necessary since the mainpumps are of variable displacement type and they will de-stroke and give out oil only according to requiredcrane operation. The circulation/filtration circuit ensures a good filtration / cooling performance, under all craneoperational modes. Large electric fan driven oil/air coolers are fitted in aft part of the crane king.

 As a result of the pressure compensated control valve system, the crane motions may be operatedsimultaneously. Both hydraulic oil level, hydraulic oil temperature, filter status and operation pressures are allgeneral data available on the control panel in the operator cabin. Any abnormal values will result invisual/audible alarm in the crane cabin.

 A separate CJC offline filter is fitted in hydraulic system to improve hydraulic oil quality, even when crane isnot in use.

1.2.6 CONTROL SYSTEM:

The basic crane control is electronic and joy sticks are integrated into operators chair in the crane cabin. Allsafety functions are cutting off the control signal for the decided motion, upon signals from the crane controlsystem. The control system cabinet is mounted inside the crane cabin and is based on an industry standardPLC system. The control system has a large LCD screen for control and monitoring of all crane functions. The

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

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•  Oil filter contamination indication

•  Temperature inside electric motors•  MRU (Motion Reference Unit)

Start/stop of main pumps and circulation system, is also done from the operators cabin.

The crane cabin / crane system is equipped with audible and visual alarms according to DNV classrequirements.

1.2.7 LOAD DIAGRAMS:

(For operation limitations under other working conditions)The crane is designed acc to DNV lifting appliances and has overload protection systems exceeding therequirements in this standard. (AOPS systems)

The crane will de delivered with a LOAD DERATING TABLE collection, describing alternative SWL underother working conditions than the base case conditions (other specific conditions etc). These tables are part ofthe crane delivery and will be used as basis for programming the crane control system.

1.2.8 SAFETY SYSTEMS:

The crane is fitted with the following safety systems:

 A Emergency stop: An emergency stop is fitted near the operator at operator’s cabin and inside the crane king. If one ofthe buttons is this button is activated, the main pumps will be stopped.

B Spring centered control handles: All control levers, separate and joy stick type, are spring centered. In order to operate the crane the

relevant control lever has to be pushed in the required direction to cause the desired motion. Once thelever is released it will return back to centre position, and the activated motion will cease immediately.To activate the control levers a key lock has to be switched on.

C Crane overload protection: All crane motions are protected against overload by the control system and the continuouslymeasured line loads and boom position information in the crane computer system. In addition, on topof this safety system, overload is not possible due to setting of the hydraulic relief valves. If aparticular motion is tried undertaken which exceeds the load for which the crane is designed, and thecontrol system safety system does not work, the relevant relief valve, for the particular motion, will

feed the hydraulic oil back into the hydraulic oil tank. Hence, the crane motion can not be undertaken.

D Load capability system:The crane control system has all information about working radius and working conditions. Based onthis, the system will indicate on the graphic display, how much load that can be handled safely andalso show the actual static and dynamic load. If the operator tries to exceed the limits programmed inthe system, the crane motion will stop and the operator will be corrected by the graphic display. The

t ill b i f d d h l th ibilit t t t b tt iti

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

H Y D R AMARINE

1 Maintaining the luffing speed at a constant value independent of the load

2 Blocking the cylinder motion in the case of hydraulic pressure loss.This will freeze the cylinder in the case of hose or pipe failure.

H Fail-safe brakes:Both the winches and the slew gearboxes are fitted with hydraulic operated, oil submerged, failsafe,and multidisc brakes. In the case of hydraulic pressure loss due to hose/pipe failure, the brake will beautomatically applied a cease the relevant motion.

I Helicopter warning light:The top of the inner jib and the aft winch skid is fitted with a red helicopter warning light to indicate

crane during dark working conditions.

J Emergency pay out function:The main winch and auxiliary winch are equipped with an AOPS (Automatic Overload ProtectionSystem) and MOPS (Manual Overload Protection System)

H Emergency operation:The winch and other crane functions will be able to run under main power failure by the built inemergency power system, supplied from the emergency generator system onboard.

1.2.10 SPECIAL TOOLS:

 A Pressure test inst ruments: A set of pressure test manometers is delivered ready for connection to the many pressure testtakeoffs installed in the system.

B Wire lubrication: A MASTO high pressure wire lubricator may be delivered as an option, for future maintenance of the

crane wire ropes.

C Bolt tension equipment:Hydraulic bolt torque or tensioning equipment for check of bolts in foundation. (Available for sale orlease from Hydramarine)

D Automatic lubrication system:Hydramarine automatic lubrication system is included.

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

H Y D R AMARINE

2.0 TECHNICAL SPECIFICATION:

2.1 OPERATION ENVIRONMENT:

 Area classification: Safe zoneDescription: Offshore/Marine environment, open deckOperation temperature range: -20 - + 45 degrees CMax. Operational wind speed: 24 m/sMax list/trim conditions: 5+2 degreesOfflead angles: Acc to DNV lifting appliances

2.2 DESIGN REGULATIONS:

Design standard: Det norske Veritas, Lifting appliances 1994NS3472 Stål strukturerEN 13852-1 – General purpose offshore crane (partly)

Design verification: HM internal, DNV as third party as optionManufacturing control: HM internal, DNV as third party for crane pedestal

Dynamic factor: 1.4 on crane and 2.0 on pedestal/slew arrangement:The crane is designed with a general crane dynamic factor of 1.4 and a pedestal/slew ring and fastenersdynamic factor of 2.0 according to DNV requirement for offshore crane.De-rating tables for other operation conditions will be provided with crane.

2.3 MAIN PERFORMANCE DATA:

MAIN HOOK LIFTING CAPASITY:

Dynamic factor = 1.4 (2.0 on pedestal/slew system)

Hook travel length: 2500 metersTotal wire included: 2550 m wire (2500 m net hook travel)Max single line lift capacity: SWL 2000 kN (200 metric tons) on outer lay (full drum)Crane load, max: 2500 kN (250 metric tons)

Note: Crane is mechanically prepared for 250 tons double fall lift, however software modifications and250 ton hook block sheave is optional for later upgrade.

Crane lifting capacity is an automatic step less function of the crane outreach with the following maincapacities: (Lifting capacity on outer drum layer, full drum)

a. Lifting capacity, single line arr. SWL 400 kN (40 metric tons) at 35 meter outreachb. Lifting capacity, single line arr: SWL 1000 kN (100 metric tons) at 20 meter outreachc. Lifting capacity, single line arr: SWL 2000 kN (200 metric tons) at 12 meter outreachd. Lifting capacity, double line arr: SWL 2500 kN (250 metric tons) at 10 meter outreach

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

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2.4 MAIN WINCH, OTHER DATA:

Minimum working radius: Approx 8 metersMain wire dimension: OD Ø88 mmMain wire type: Galvanized, non rotating type.Drum barrel: LEBUS groovedHoisting speed, single line, 0-50 tons: 0-80 m/min stepless var. on lay 7 (Load dep.)Hoisting speed, single line, 50 –100 tons: 0-80-40 m/min stepless var. on lay 7 (Load dep)Hoisting speed, single line, 100-200 tons: 0-40-20 m/min stepless var. lay 7 (Load dep)(Hoisting speeds are automatic a function of load, therefore speeds are approximate values)Hoisting speed, double line, Half of above values

Constant tension force setting: 0-100 tons, set from operators cabinEmergency pay out function: AOPS & MOPS

2.5 MAIN HOOK ACTIVE HEAVE COMPENSATION (AHC) CAPACITY:

0-100 ton High Performance AHC mode:

Max top wire tension, single line during AHC: 1000 kN (100 ton single line)1000-2000 kN (with speed limit. 1,0 m/s

2000-2500 kN (with speed limit. 0,8 m/s

Data for 0-100 tons single line crane load:

Performance:Heave period: 10 secNominal displacement: +/- 3,2 m (6,4 m total motion)Max acceleration: 1,8 m/s^2Max compensation speed: 2,0 m/s

Reference system: MRU in crane control system

2.6 AUXILIARY HOOK LIFTING CAPACITY:

Dynamic factor ψ= 1.4 (2.0 on pedestal/slew system)

Hook travel length: 150 metersTotal wire included: 200 metersMax single line lift capacity: SWL 100 kN (10 metric tons) on outer lay (full drum)a. Lifting capacity, single line arr: SWL 100 kN (10 metric tons) at 36 meter outreach

b Man riding capacity, single line arr: SWL 50 kN (5 metric tons) at 36 meter outreach

2.7 AUXILIARY WINCH, OTHER DATA:

Minimum working radius: Approx 8 meters Aux wire dimension: OD Ø 24 mm Aux wire type: Galvanized, non rotating type.Hoisting speed, single line: 0-100 m/min steeples variable on lay 3 for 0-10 tonC i l F bi AT / ff d i i

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OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

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2.9 BOOM SYSTEM PERFORMANCE:

Inner boom topping speed: Approx. 130 sec (stepless variable speed)Outer boom topping speed: Approx. 100 sec (stepless variable speed)Cylinder bearings: Fork eye on all cylinder ends, Steel spherical bearing

2.10 REQUIRED ELECTRIC POWER SUPPLY:

El. motor power. 3 x 690V / 60 HzMain motor enclosure: IP 55Main el. motor power consumption, max 3 x 870 kW (Max consumption)Vessel supply circuits (Power boards) 3 separate inputsMain el. motor power rating: S6, 40 %

Main motor starting method: Star / Delta start, (Starter included in crane system) Auxiliary motors (for various purposes): 1 x 140 kW /690V/60Hz/3phEmergency unit 1 x 75 KWRating S1 100%Starting method Direct

 Auxiliary power supply: 3ph/230VAC / 12 kW (To slip ring for transfer to crane)(For aux. functions when main power is off)

UPS power supply: 1ph/230VAC/2,5 kW for control system

 Aviation light: 1ph/230VAC/0,5 kW

Power supply cable termination: At slip ring inside pedestal

NOTE: Power consumption:The crane is set up to run with a maximum intermittent power consumption based on max AHC performance(Full load at max AHC speed) combined with limited speed capability on all crane general functions as well. Itis possible to limit some of these extreme parameters to reduce the max power consumption, in cases withlimited power supply. Contact Hydramarine if this is actual.

NOTE: Re-generation of power during main / aux winch operation into the electrical systems onboardthe ship.The electrical systems onboard should have the ability to withstand possible re-generated power from mainmotors during operation described above. The re-generated power is linked to two different operation modes:one power of 4-500 kW actual when main winch is lowered to seabed with heavy load. This period can last10-20 minutes depending on how deep the load is deployed. The other mode is short peak periods during

 AHC, in level of 1300 kW, but strictly limited to short time peaks.If needed, Hydramarine AS can, upon request, deliver re-generation resistors suitable for the application.

2.11 OPERATION OF CRANE:

Type of control system: Electronic servo operated control valve systemOperation location: Electronic joy stick levers fitted at operators chair in cabinControl and monitoring functions: Siemens PLC based system with graphic user interface

2 12 HYDRAULIC SYSTEM:

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 Document: Technical specification

Doc. No: TS.HMC.4240.0015Revision: 0Page: 12 of 13

OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

H Y D R AMARINE

2.13 HYDRAULIC LUFFING/ KNUCKLE JIB CYLINDERS:

Number of main jib cylinders: 2Number of knuckle jib cylinders: 2Type of cylinders: Double acting marine typeBearings: Spherical bearings with sealing systemCylinder rod: High grade steel material + hard chrome plated

2.14 ELECTRIC EQUIPMENT:

External junction boxes: Stainless steel AISI 316PG nipples in stainless cabinets: Brass / stainless steelExternal control cabinets, heating: Internal space heaters fitted

External Cable trays: Stainless steel AISI 316Position sensors, housing and support: Stainless steel, AISI 316, heavy duty design

2.15 SURFACE TREATMENT: 

Crane external surfaces, including machinery room and pedestal surfaces inside:

•  The external surfaces are sandblasted to Sa 2,5

•  One coat of zinc epoxy primer, of 50 my dry film thickness, (Interzinc 72 or equal)•  One coat of intermediate coat, of 150 my dry film thickness, (Intershield 300 or equal.)

•  One second coat of interm. coat, of 150 my dry film thickness, (Intershield 691 or equal.)•  One top coat, of 50 my dry film thickness, applied as top coat. (Interfine 990 or equal)

TOTAL DFT: 400 myTop coat color crane pedestal and king: RAL 9010 White 

Oil reservoir on inside: Special paint system for oil tanksGalvanized steel:One coat of Intergard 269, 40 my dry film thickness.One coat of Interthane 990, 50 my dry film thickness.

Stainless steel details:Piping, cable tray and junction boxes: Untreated

2.16 WEIGHT OF COMPLETE MAIN ELEMENTS AND TOTAL COMPLETE CRANE: (dry weight)

Pos: Unit: Unit weight: (Complete)

 A1 Foundation: 25 ton A2 Foundation extension (optional) N/A

B King structure: 64 tonC Main jib: 34 tonD Outer jib: 32 tonE Complete winch skid incl. 2550 m wire 171 tonF AHC system 22 tonG Cylinders 29 tonH Auxiliary winch with 200 m wire 4 ton

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 Document: Technical specification

Doc. No: TS.HMC.4240.0015Revision: 0Page: 13 of 13

OFFSHORE KNUCKLE JIB CRANE TYPE: HMC 4240 LKO 400-35(1000-20) (2000-12) (2500-10) (100-36) AHC

H Y D R AMARINE

2.18 DIMENSIONS AND LAYOUT PLAN:

See general arrangement drawing:

Drawing no: C.4240.0015. GA01 / C.4240.0015. GA02Drawing no: C.4240.0016. GA01 / C.4240.0016. GA02

PICTURE:

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63001-DWG-331-M-0005

0

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63001-DWG-331-G-0006

0

C.4240.0015 Internal

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