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Marine knuckle boom crane, 10t capacity (Technical supply specification)


1. General Information (Operating Conditions)

The marine knuckle boom crane operates reliably under the following maritime conditions:

  • Design ambient air temperature: +25 °C with 80% humidity in summer; -30 °C with wind speeds up to 25 m/s (design temperature for structural steel: -40 °C) and 85% humidity in winter;
  • Sea water temperature: from +32 °C to -2 °C;
  • Permanent heel: up to 5° to either side;
  • Permanent trim: up to 2° by bow or stern;
  • Shipboard vibration;
  • Periodic sea water splashing of components;
  • Sea state: up to sea state 3.

2. Purpose

The marine knuckle boom crane is designed for various cargo handling operations.

Marine knuckle boom crane 10 t general arrangement drawing side view
Marine knuckle boom crane 10 t general arrangement drawing side view

About

Role of the Marine Knuckle Boom Crane in Vessel Operations

Equipment that directly impacts the safety and efficiency of cargo operations is a critical focus in shipbuilding. The marine knuckle boom crane is one such device, combining the functions of a crane and a manipulator. It is utilized for moving various loads on deck, servicing technical zones, and handling onboard equipment.

Design and Application Features

The core design of the knuckle boom crane features a telescopic boom, ensuring precise load positioning and the ability to operate in confined spaces. This configuration is particularly effective for installation works, discharging support vessels, and performing maintenance and repair operations on deck. Control can be executed via wireless control, which increases personnel safety and operational convenience.

Modern Design Approaches

Modern marine knuckle boom cranes are engineered for specific operating conditions, requiring resistance to vibration, splashing, and continuous loads. Design focus extends beyond functionality to maintenance ergonomics, ensuring component accessibility, straightforward technical inspection, and efficient stowed positioning.

Equipment Manufacturer

This equipment is manufactured by Izhora Hydrosystems LLC, which designs and produces marine knuckle boom cranes tailored to customer requirements and specific application needs. The company implements advanced solutions in hydraulic and control systems, ensuring high operational precision and equipment durability under maritime conditions.

Significance of the Marine Knuckle Boom Crane

The marine knuckle boom crane holds a critical position within the shipboard equipment package. It streamlines cargo handling operations, increases vessel autonomy, and reduces dependence on shore infrastructure. The ability to execute precise and safe load handling renders this equipment indispensable for both commercial and support vessels. Combining a compact footprint, high functionality, and service ergonomics, the marine knuckle boom crane serves as a key element in modern marine systems, ensuring efficient crew operations and optimized deck space utilization.


3. Scope of Supply

3.1 Marine Knuckle Boom Crane 10 t

3.1.1 Bill of Materials

ComponentQuantity
Crane structure1
Slewing bearing unit1
Pedestal*1
Main boom equipped with light fixture1
Winch1
Outer boom with telescopic sections1
Boom tip with sheave1
Cargo hook with safety latch1
Set of hydraulic piping and hoses installed on the crane structure and power pack1
Crane-mounted hydraulic power pack1
Set of crane-mounted hydraulic equipment1
Floodlight on the boom tip for working area illumination1
Portable remote control console with wireless control and cable transmission1
Control console storage and connection enclosure, crane column mounted1
Installation and operating manual1
Corrosion-resistant identification plate1
Set of fasteners and cable glands for cable entry1
Instruction plates in Russian1
Marine knuckle boom crane 10 t general arrangement drawing top view
Marine knuckle boom crane 10 t general arrangement drawing top view

3.1.2 Main Parameters

ParameterValue
Model typeElectro-hydraulic knuckle boom crane with telescopic outer boom and column
Drive typeHydraulic
Safe Working Load (SWL) at 6.5 m to 16 m outreach3.2 t
Safe Working Load (SWL) at 2.5 m to 6.5 m outreach10 t
Max. working radius16 m
Min. working radius2.5 m
Hoisting/lowering speed10 m/min
Slewing angle360° (with programmable limitation option)
Slewing speed (unloaded)1 rpm
Drum rope capacity40 m
Floodlight luminous flux2,500 lm
Crane controlPortable remote control console with 15 m cable
Power supply3 ph, 400 V, 50 Hz, power consumption max. 55 kW
CertificationRS (RMRS) Certificate Form 6.5.30

3.1.3 Spare Parts (SPTA)

RS (RMRS) Certificate Form 6.5.30.

3.1.4 Documentation

DocumentQuantity
Product passport1
Installation and operating manual1
List of spare parts (SPTA)1
Factory acceptance test (FAT) report1
Shipboard test program and procedure1

3.1.5 Certificates

RS (RMRS) Certificate Form 6.5.30.


4. Additional Requirements

  • All electrical equipment protection class: min. IP56 on open deck, min. IP44 in internal spaces.
  • All materials are resistant to operating temperature conditions (-30 °C to +25 °C).
  • All equipment within the scope of supply includes counter-connections for system piping termination. All equipment ports are blanked off with standard factory plugs.
  • Instruction plates, warning signs, labels, and mimic diagrams are provided in Russian.
  • The crane column structure permits the welding of bitting elements and a maintenance platform.
  • The electric drive is equipped with a soft starter or multi-stage starting device.
  • The coating system and equipment color are subject to Customer approval.
  • The equipment is provided with documentation confirming compliance with the requirements of the Decree of the Government of the Russian Federation No. 719 “On Confirmation of Industrial Production on the Territory of the Russian Federation”.

Note:

The marine knuckle boom crane is supplied with a pedestal, in which case the hydraulic power pack is located inside the pedestal. If supplied without a pedestal, the hydraulic power pack is remote and located inside the vessel hull.


5. Manufacturer

Izhora Hydrosystems LLC


6. Warranty Period

12 months from the date of shipment, unless otherwise specified in the contract.


Contacts

  • Phone: +7 (812) 339-61-68
  • Email: contact@i-hydro.tech