Navigation
Related

Navigation

Related

Marine Knuckle Boom Crane, 2t Capacity (Technical supply specification)


1. General Data (Operating Conditions)

Operating conditions:

  • Ambient air temperature: –40 °C to +40 °C
  • Continuous heel: up to 5° (either port or starboard)
  • Continuous trim: up to 2° (bow or stern)
  • Shipboard vibration
  • Intermittent sea water splashing

Stowed conditions:

  • Ambient air temperature: –45 °C to +50 °C
  • Heel: up to 15° (either port or starboard)
  • Trim: up to 5° (bow or stern)
  • Shipboard vibration
  • Intermittent sea water splashing

2. Purpose

The marine electro-hydraulic crane is designed for:

  • Installation on vessels with unrestricted navigation area.
  • Loading and discharging operations of compact general cargo using a cargo cage, as well as unloading containers handled by the dry cargo replenishment system.
  • Handling of hazardous/explosive cargo (Class 1 IMDG).
Marine Crane 2t Capacity – General Arrangement (GA) Drawing, Side View
Marine Crane 2t Capacity – General Arrangement (GA) Drawing, Side View

About

Marine Cranes: Essential Equipment for Modern Vessels

Modern vessels impose increasingly stringent requirements on the precision, reliability, and autonomy of cargo handling machinery. Within this ecosystem, the marine crane occupies a critical position as specialized equipment that enables a wide range of loading and discharging operations in open sea conditions.

Due to a well-engineered design and high resistance to environmental factors, this type of crane is utilized on both commercial and naval vessels, where the efficiency of the machinery directly dictates the safety and speed of all onboard processes.

Design Features and Role in Vessel Infrastructure

The marine crane is central to shipboard logistics. Its primary function is to ensure safe and precise cargo handling under conditions of vessel motion, vibration, extreme temperature fluctuations, and exposure to sea water.

The core design feature relies on maritime environment adaptation: all assemblies and components are engineered for long-term operation, while control systems enable real-time process monitoring by the operator. This equipment becomes an integral part of deck machinery packages, enhancing the vessel’s autonomy and operational efficiency.

Next-Generation Engineering Solutions

Modern marine cranes represent an engineering evolution aimed at combining durability, reliability, and operational ergonomics. Designers focus heavily on resistance to aggressive marine environments, ensuring stable equipment performance under various climatic conditions and dynamic loads.

Advanced control systems play a critical role, allowing precise load positioning and mitigating the risk of incidents. This approach establishes a high operational standard, making the equipment a vital component of the overall vessel infrastructure.

Applications Across Diverse Sectors

The marine crane is utilized on a wide range of vessel types, from transport ships to specialized technical platforms. It ensures efficient positioning, loading, and discharging of cargo, which is critical when operating in remote areas lacking developed port infrastructure.

Due to its versatility, this type of crane is actively deployed not only across commercial fleets but also on fishing, research, and support vessels. Its application reduces port turnaround times and enhances the efficiency of maritime operations.

Equipment Manufacturer

Modern marine cranes are manufactured by Izhora Hydrosystems LLC. The company specializes in the design and production of reliable marine systems compliant with the requirements of the Russian Maritime Register of Shipping (RMRS).

The production technologies utilized focus on durability, resistance to harsh environmental factors, and ease of maintenance. This approach enables seamless integration of the equipment into existing deck machinery packages without requiring prolonged adaptation.

Industry Significance

The introduction and wide adoption of marine cranes represent a milestone in the evolution of maritime logistics. This equipment significantly enhances vessel autonomy, reduces dependence on shore-based port services, and supports the development of new shipping routes, including those in Arctic and remote sea areas.

The marine crane has become a key tool driving modern maritime transport, where reliability and mobility are of paramount importance.


3. Scope of Supply

3.1 Marine Electro-Hydraulic Crane

3.1.1 Components

ComponentQuantity
Marine crane assembly complete with integrated electrical and hydraulic equipment, and instrumentation1 set
Power pack assembly complete with emergency hand pump and oil filling device1 set
Portable cable remote control1 pc.
Socket for portable remote control connection1 set
Counter flange for deck mounting1 pc.
Spare parts, tools and accessories (SPTA) kit1 set
Mounting kit (high-tensile bolts, nuts, and washers)1 set
Marine Crane 2t Capacity – General Arrangement (GA) Drawing, Top View
Marine Crane 2t Capacity – General Arrangement (GA) Drawing, Top View

3.1.2 Main Parameters

ParameterValue
Safe Working Load (SWL) (Sea State up to 3)2 t
Outreach1.8…12.0 m
Hoisting/lowering speed0.15…0.2 m/s
Max. hoisting height11.1 m
Lowering depth below crane foundation level15 m
Winch drive typeHydraulic
Wire rope diameter13.0 mm
Slewing angle360°
Slewing speed (unloaded)0.2…1 rpm
Slewing drive typeHydraulic
Power supply3 phases, 380 V, 50 Hz
Crane controlLocal control panel and portable remote control (15 m cable)
Hydraulic power pack (HPU)Stand-alone

3.1.3 SPTA Kit

Manufacturer’s standard spare parts, tools and accessories kit for 1-year operation — 1 set.

3.1.4 Documentation

DocumentQuantity
Installation manual1 set
Operating manual1 set
Spare parts list1 set
Crane passport complete with certificate and test reports1 set

3.1.5 Certificates

  • RMRS Certificate for all equipment within the scope of supply, in compliance with RS rules.
  • Manufacturer’s factory certificate.
  • Factory Acceptance Test (FAT) protocols.

4. Additional Requirements

  • All labels and data plates shall be in Russian.
  • Data plates on deck equipment shall be manufactured from corrosion-resistant material.
  • The crane shall comply with the RMRS Rules and the Order of the Ministry of Defense of the Russian Federation No. 792.
  • Marine execution with protection against sea water exposure and shipboard vibration.
  • Crane control shall be provided from both the operator platform and the remote control panel.
  • Electrical equipment installed outside the crane structural housing shall have a protection rating of not less than IP56.
  • Electrical equipment power supply shall be delivered from the vessel’s 3-phase AC network, 380 V, 50 Hz.

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