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Marine stiff boom crane, 15t capacity (Technical supply specification)


1. General Information (Operating Conditions)

The stiff boom crane ensures reliable operation under the following marine environment conditions:

– Design ambient air temperature: +45 °C with 60% humidity in summer, and –40 °C with wind speeds up to 25 m/s in winter (design temperature for structural steel is –40 °C with 60% humidity); water temperature range: from +32 °C to –2 °C.

– Hull-induced vibration.

– Intermittent sea water splashing of components.

– Static heel: up to 5° port/starboard.

– Static trim: up to 2° bow/stern.


2. Purpose

The equipment is designed for installation on various types of vessels and ships.

Lifting operations, including handling of general cargo, ship stores, and provisions, at static heel angles up to 5° port or starboard and trim up to 2° bow or stern at the minimum vessel draft.

Stiff boom crane, 15 t capacity – general arrangement side view
Stiff boom crane, 15 t capacity – general arrangement side view

About

Advanced Marine Solutions

The stiff boom crane is an essential component of vessel equipment, enabling a wide range of open-sea operations. This equipment is engineered for harsh marine environments where reliability, stability, and predictable mechanical behavior are critical.

The Role of the Crane Aboard Modern Vessels

On marine and auxiliary vessels, the stiff boom crane handles cargo, transfers crew stores, manages equipment, and performs tasks requiring precision and stability. The stiff boom design ensures smooth control and high structural stability during maneuvers, which is particularly vital under rolling conditions and in confined deck spaces.

Engineering Features Explained

From an engineering perspective, this crane integrates mechanical and hydraulic systems to efficiently convert power into controlled movements. The structural architecture is optimized to distribute loads and maintain balance during operations. This configuration allows the mechanism to perform reliably under variable conditions and rapidly adapt to operational requirements.

Manufacturing Approach and Reliability

The production of this equipment incorporates a comprehensive suite of engineering solutions that ensure structural integrity, component precision, and heavy-duty component longevity. Izhora Hydrosystems LLC designs and manufactures these systems with a focus on operational practicality, serviceability, and shipyard contractor requirements, making the products highly demanded within the shipbuilding industry.

Significance for Vessel Infrastructure

The stiff boom crane integrates into the vessel’s overall logistics setup, ensuring fast and safe operations. Its application accelerates daily workflows and expands the vessel’s operational capabilities, establishing the crane as a vital component of marine infrastructure.


3. Scope of Supply

3.1 Stiff boom crane, 15 t capacity

3.1.1 Product Configuration

ComponentQuantity
Base1
Column1
Boom section1
Telescope section1
Electrical equipment installation1
Slewing drive1
Winch1
Boom cylinder1
Telescope cylinder1
Hook block1
Local control panel1
Control cabinet1
Hydraulic equipment installation1
Hydraulic power unit1
Stiff boom crane, 15 t capacity – general arrangement top view
Stiff boom crane, 15 t capacity – general arrangement top view

3.1.2 Main Technical Data

ParameterValue
Safe Working Load (SWL), max., kg15000
Outreach, m15
Hoisting/lowering speed, m/min10
Lowering depth, m (from the vessel foundation level)20
Winch drive typeHydraulic
Slewing angle, deg.Continuous
Slewing speed (unloaded), rpmMin. 1
Crane controlCabin-operated
Power supply3 phases, 380 V, 50 Hz
Total weight, kg12000
Operating conditions (in-use)– Static heel up to 5°; – Static trim up to 2°; – Wind pressure max. 400 Pa; – Hull-induced vibration
Operating conditions (stowed/sea voyage position)– Temperature from –50 °C to +50 °C; – Heel up to 15°; – Trim up to 5°; – Wind pressure max. 2000 Pa; – Hull-induced vibration

3.1.3 SPTA Kit

Manufacturer’s standard spare parts, tools, and accessories (SPTA) kit for 1 year of operation.

3.1.4 Documentation

DocumentQuantity
Technical Passport1
Installation and Operating Manual1
SPTA List1
Factory Acceptance Test (FAT) Report1
Shipboard Test Program and Procedure1

3.1.5 Certificates

RMRS Certificate (RS Product Certificate) Form 6.5.30 — 1 copy.


4. Additional Requirements

– All electrical equipment shall have a minimum protection rating of IP 56.

– All materials shall be stable under the specified operating temperature range (–40 °C to +45 °C).

– Minimum winter storage temperature: –50 °C.

– Coating: the coating system and color shall be subject to the Customer’s approval.

– Preservation coatings shall provide an indoor storage life of 12–18 months.

– Hydraulic fluid: AUP grade.

– Hydraulic fluid cleanliness class per GOST 17216-71: min. Class 12.

– Power supply cables shall be complete with mating connectors.

– The equipment shall be supplied with RS documentation certifying capability for operation down to –40 °C without supplementary heating.

– Packaging shall ensure suitability for crane or forklift handling, road transport, and sheltered outdoor storage.


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