Navigation
Related
Categories & Industries
Marine folding boom cranes combine high functionality with a compact design. Their robust steel structure and versatile hydraulic drive support all primary crane operations: hoisting, outreach adjustment, and slewing.
Compared to stiff boom models, these cranes require less space in the stowed position and provide a wider range of working areas during operation.
The 20TX15M model provides a lifting capacity of up to 20 t at a 15 m outreach. The stowed boom has an overall length of only 11.5 m, ensuring efficient use of space during transportation and storage. An ergonomic cabin provides comfortable working conditions for the crane operator.
Loading model
(highlighted in blue)
The barbette assembly serves as a robust structural support for installation of the slewing system. The structure is securely mounted to the vessel foundation, while the internal platform provides safe and convenient access for slip ring maintenance.
(highlighted in blue)
The crane housing serves as the primary structure for mounting the boom, hydraulic cylinders, and the operator’s cabin. It houses the key systems, including the hydraulic oil tank, pump units, and slewing drives. The design ensures safe access for maintenance: a vessel access door and service hatch lead to the barbette platform and the slip ring assembly.
(highlighted in blue)
The crane boom serves as the mounting structure for the hoisting winch. The articulated connection to the crane housing, together with the hydraulic cylinders, enables precise boom outreach adjustment, ensuring efficient execution of lifting operations.
(highlighted in blue)
The jib assembly ensures accurate guidance of the hoisting wire rope through a system of sheaves with protective rope guards. The articulated connection to the boom, together with hydraulic cylinders, provides smooth outreach adjustment, ensuring safe and stable operation.
(highlighted in blue)
The hydraulic cylinders enable boom outreach adjustment from 6.4 m to 17.7 m. Integrated counterbalance valves ensure safe load holding and allow manual emergency lowering of the boom in the event of power loss. The 4 m stowed length design ensures reliable and stable operation under all operating conditions.
(highlighted in blue)
The hydraulic cylinders control the jib outreach, ensuring precise positioning. Counterbalance valves provide full load control and allow safe manual lowering of the jib in the event of power loss. This solution ensures uninterrupted operation even under abnormal operating conditions.
(highlighted in blue)
The main winch, with a lifting capacity of up to 20 t, provides precise load hoisting and lowering. A dual braking system — comprising a disc brake and a band brake — ensures safe and reliable load holding. The winch drive supports constant, adjustable tension, enhancing efficiency and load control during operations.
(highlighted in blue)
The hook block ensures safe and reliable handling of loads up to 20 t, providing stable lifting operations.
(highlighted in blue)
The operator’s cabin provides an ergonomic workspace equipped with everything necessary for comfortable and efficient operation. The cabin is equipped with two seats: a primary operator’s seat with an integrated control station and an additional assistant seat. A climate control system with air conditioning, heating, and ventilation, together with heated windows, ensures comfortable operating conditions and clear visibility in all seasons.
(highlighted in blue)
Ladders and platforms provide safe and convenient access for maintenance personnel, ensuring ease of operation and reliable crane serviceability.
(highlighted in blue)
The slewing drives provide 360° crane rotation and ensure precise positioning. Slewing brake valves securely lock the equipment in any angular position, maintaining full load control and operational safety.
(highlighted in blue)
The slip ring assembly ensures uninterrupted power supply to all systems during 360° continuous slewing. The unit is protected from external influences while maintaining convenient access for maintenance.
(highlighted in blue)
The boom rest ensures structural stability in the stowed condition, effectively withstanding lateral wind loads of up to 2,000 Pa and vessel heel angles of up to 15°.
The following documentation provided with the crane:
| Document | Quantity |
|---|---|
| Product Data Sheet | 1 |
| Installation and Operation Manual | 1 |
| Onboard Test Program and Methodology | 1 |
| Factory Acceptance Test (FAT) Report | 1 |
| Spare Parts and Tools List | 1 |
Marine Giant with a Folding Arm: Inside the “Transformer” Crane
Imagine a multi-ton load that needs to be transferred from one deck to another in the open ocean. Or a piece of research equipment being recovered from a depth of 60 meters. Wind, heavy seas, and salt spray — these conditions are extreme, to say the least. This is the environment marine cranes are built for. But our featured model is more than just a heavy-duty lifting mechanism; it is a true “transformer” — a folding boom crane designed to fold away and save precious deck space.
Why It’s More Complex Than It Seems
At first glance, a crane might seem like a simple arrangement of a boom, a wire rope, and a hook. However, offshore operations add layers of complexity. A vessel is never stationary: it rolls and pitches on the waves (with a heel of up to 10° during operation and 15° in a stowed position) and may experience significant trim. Combined with gale-force winds and a corrosive saltwater environment, the challenges are immense. Engineers had to develop a mechanism that maintains precision and reliability in sea states up to 3 and temperatures ranging from -30°C to +40°C. Most importantly, it is designed for maximum compactness, folding into a stowed position to clear the deck when not in use.
What it’s Made Of: Steel Skeleton and Core
To withstand colossal loads, a crane must be robust yet not excessively heavy. Its “bones” — the welded metal structures — are fabricated from special 09G2S steel. This material performs exceptionally well in cold climates and resists overloading. The most critical components, such as the hydraulic cylinder pins, are made from even higher-strength 40X alloy steel.
How It Is Controlled: Hydraulics as Muscle
Lifting 20 tons is no task for weak electric motors. The heavy lifting is performed by hydraulic cylinders — powerful “muscles” that exert hundreds of tons of force. The crane features several: two cylinders raise and lower the main boom, while another two control the jib position. A key safety feature is the integrated counterbalance valves. In the event of a hydraulic failure, these valves lock automatically, preventing the boom from dropping under its own weight.
Load handling is managed by a dedicated winch system, capable of lowering the hook to depths of up to 80 meters. To ensure the wire rope does not twist and spools evenly onto the drum, the winch is equipped with a rope spooling device. For maximum safety, it features a dual braking system: an integrated internal brake and a secondary band brake mounted directly on the drum. This provides the same level of redundancy as having both primary and emergency braking systems in a vehicle.
Intelligence and Safety: Ensuring Zero Failures
The entire system is managed by an operator from an insulated, air-conditioned cabin featuring heated panoramic windows. However, the operator’s role is primarily to issue commands via joysticks; the precision and safety are handled by automation. The crane is equipped with an array of sensors:
The system is designed with comprehensive interlocks: if a machine room door or a deck hatch is left open, the safety lockout will prevent the crane from starting.
“Transformer” Mode: Stowing the Crane
The most impressive part of the operation is the transition to the stowed position. Once the workday is over, the crane must be secured to protect it from potential storms. The hydraulic cylinders retract their rods: first, the jib folds against the main boom, and then the entire assembly lowers to a nearly horizontal position. The hook block is pulled tight against the jib and secured with specialized lashings. From a massive working machine, the crane transforms into a compact structure ready to face the harshest weather. The entire process resembles a stag beetle tucking away its “horns.”
This crane is a prime example of how engineering creates equipment capable of performing at the limit of human possibility, surrounded by the most unpredictable elements. It is not merely a lifting device, but a high-precision instrument that combines the raw power of metal with the intelligence of electronics.
| Parameter | Value |
| Safe Working Load (SWL) at max. outreach, t | 20 t |
| Boom outreach max., m | 15 m |
| Boom outreach min., m | 3.4 m |
| Slewing angle, ° | 360° |
| Slewing speed, rpm | 1 rpm |
| Hoisting speed, m/min | 10 m/min |
| Hook travel, m | 80 m |
| Ambient temperature, °C | -30°…+40° |
| Heel (either side), ° | up to 10° |
| Trim (bow or stern), ° | up to 3° |
| Sea state, max. | 3 |
| Wind load, Pa | ≤400 Pa |
| Vessel-induced vibrations | Yes |
| Ambient temperature, °С | -40°…+40° |
| Heel (either side), ° | up to 15° |
| Trim (bow or stern), ° | up to 5° |
| Wind load, Pa | ≤2000 Pa |
| Vessel-induced vibrations | Yes |
| Main electric motor rated power, kW | 60 kW |
| Total weight (excluding hydraulic fluid), max., t | 50 t |
| – including weight of the boom rest, kg | 2200 kg |
| Power supply | AC, 50 Hz; 400 V ±10% |
| Outdoor electrical equipment IP rating, min. | IP56 |
| Hydraulic working fluid | AUP hydraulic oil (TU 38.1011258-89) |
| Hydraulic working fluid capacity, L | 1200 L |
Technical requirements:
Electrical equipment:
Packaging and transportation. The equipment is supplied in packaging that allows for:
Safety requirements. Safety during load handling:
Emergency situations:
Special safety devices:
Control system:
The equipment complies with the following requirements:
Related
Categories & Industries
Personal Data Processing Policy
1. General provisions
This Personal data processing Policy is compiled in accordance with the requirements of Federal Law No. 152-FZ dated 27.07.2006 “On Personal Data” (hereinafter referred to as the Personal Data Law) and defines the procedure for processing personal data and measures to ensure the security of personal data taken by Izhora Hydrosystems Co. Ltd (hereinafter referred to as the Operator).
1.1. The Operator sets as its most important goal and condition for the implementation of its activities the observance of the rights and freedoms of man and citizen in the processing of his personal data, including the protection of the rights to privacy, personal and family secrets.
1.2. This Operator’s policy regarding the processing of personal data (hereinafter referred to as the Policy) applies to all information that the Operator can receive about website visitors https://i-hydro.ru .
2. Basic concepts used in the Policy
2.1. Automated processing of personal data — processing of personal data using computer technology.
2.2. Blocking of personal data — temporary termination of processing of personal data (except in cases where processing is necessary to clarify personal data).
2.3. Website – a set of graphic and informational materials, as well as computer programs and databases that ensure their availability on the Internet at a network address https://i-hydro.ru .
2.4. Personal data information system — a set of personal data contained in databases and information technologies and technical means that ensure their processing.
2.5. Depersonalization of personal data — actions as a result of which it is impossible to determine, without the use of additional information, the identity of personal data to a specific User or other subject of personal data.
2.6. Personal data processing — any action (operation) or set of actions (operations) performed with or without the use of automation tools with personal data, including collection, recording, systematization, accumulation, storage, clarification (updating, modification), extraction, use, transfer (distribution, provision, access), depersonalization, blocking, deletion, destruction of personal data.
2.7. Operator — a state body, municipal body, legal entity or individual, independently or jointly with other persons organizing and /or processing personal data, as well as determining the purposes of processing personal data, the composition of personal data to be processed, actions (operations) performed with personal data.
2.8. Personal data — any information related directly or indirectly to a specific or identifiable User of the Website https://i-hydro.ru .
2.9. Personal data authorized by the subject of personal data for distribution — personal data to which an unlimited number of persons have access by the subject of personal data by giving consent to the processing of personal data authorized by the subject of personal data for distribution in accordance with the procedure provided for by the Law on Personal Data (hereinafter — personal data authorized for distribution).
2.10. User — any visitor to the website https://i-hydro.ru .
2.11. Provision of personal data — actions aimed at disclosure of personal data to a certain person or a certain circle of persons.
2.12. Dissemination of personal data — any actions aimed at disclosure of personal data to an indefinite circle of persons (transfer of personal data) or familiarization with personal data of an unlimited circle of persons, including the publication of personal data in the media, placement in information and telecommunications networks or providing access to personal data in any other way.
2.13. Cross—border transfer of personal data is the transfer of personal data to the territory of a foreign state to the authority of a foreign state, a foreign individual or a foreign legal entity.
2.14. Destruction of personal data — any actions as a result of which personal data is permanently destroyed with the impossibility of further restoration of the content of personal data in the personal data information system and/or the material carriers of personal data are destroyed.
3. Basic rights and obligations of the Operator
3.1. The Operator has the right to:
— receive reliable information and/or documents containing personal data from the subject of personal data;
— if the personal data subject withdraws consent to the processing of personal data, as well as sending a request to terminate the processing of personal data, the Operator has the right to continue processing personal data without the consent of the personal data subject if there are grounds specified in the Law on Personal Data;
— independently determine the composition and list of measures necessary and sufficient to ensure the fulfillment of obligations provided for by the Law on Personal Data and regulatory legal acts adopted in accordance with it, unless otherwise provided by the Law on Personal Data or other federal laws.
3.2. The Operator is obliged to:
— to provide the subject of personal data, at his request, with information concerning the processing of his personal data;
— organize the processing of personal data in accordance with the procedure established by the current legislation of the Russian Federation;
— respond to requests and requests from personal data subjects and their legal representatives in accordance with the requirements of the Personal Data Law;
— to inform the authorized body for the protection of the rights of personal data subjects at the request of this body of the necessary information within 10 days from the date of receipt of such a request;
— publish or otherwise provide unrestricted access to this Policy regarding the processing of personal data;
— take legal, organizational and technical measures to protect personal data from unauthorized or accidental access to them, destruction, modification, blocking, copying, provision, dissemination of personal data, as well as from other illegal actions with respect to personal data;
— stop the transfer (distribution, provision, access) of personal data, stop processing and destroy personal data in the manner and cases provided for by the Law on Personal Data;
— perform other duties provided for by the Law on Personal Data.
4. Basic rights and obligations of personal data subjects
4.1. Personal data subjects have the right to:
— receive information concerning the processing of his personal data, except in cases provided for by federal laws. The information is provided to the personal data subject by the Operator in an accessible form, and it should not contain personal data related to other personal data subjects, except in cases where there are legitimate grounds for disclosure of such personal data. The list of information and the procedure for obtaining it is established by the Law on Personal Data;
— require the operator to clarify his personal data, block or destroy them if the personal data are incomplete, outdated, inaccurate, illegally obtained or are not necessary for the stated purpose of processing, as well as take measures provided by law to protect their rights;
— to put forward a condition of prior consent when processing personal data in order to promote goods, works and services on the market;
— to revoke consent to the processing of personal data, as well as to send a request to terminate the processing of personal data;
— appeal to the authorized body for the protection of the rights of personal data subjects or in court against illegal actions or inaction of the Operator when processing his personal data;
— to exercise other rights provided for by the legislation of the Russian Federation.
4.2. Personal data subjects are obliged to:
— provide the Operator with reliable data about themselves;
— inform the Operator about the clarification (update, change) of their personal data.
4.3. Persons who have provided the Operator with false information about themselves or information about another personal data subject without the latter’s consent are liable in accordance with the legislation of the Russian Federation.
5. Principles of personal data processing
5.1. The processing of personal data is carried out on a legal and fair basis.
5.2. The processing of personal data is limited to the achievement of specific, predetermined and legitimate goals. Processing of personal data incompatible with the purposes of personal data collection is not allowed.
5.3. It is not allowed to combine databases containing personal data, the processing of which is carried out for purposes incompatible with each other.
5.4. Only personal data that meet the purposes of their processing are subject to processing.
5.5. The content and volume of the processed personal data correspond to the stated purposes of processing. Redundancy of the processed personal data in relation to the stated purposes of their processing is not allowed.
5.6. When processing personal data, the accuracy of personal data, their sufficiency, and, if necessary, relevance to the purposes of personal data processing is ensured. The Operator takes the necessary measures and/or ensures that they are taken to delete or clarify incomplete or inaccurate data.
5.7. The storage of personal data is carried out in a form that allows determining the subject of personal data, no longer than the purposes of personal data processing require, unless the storage period of personal data is established by federal law, an agreement to which the subject of personal data is a party, beneficiary or guarantor. The processed personal data is destroyed or depersonalized upon achievement of the processing goals or in case of loss of the need to achieve these goals, unless otherwise provided by federal law.
| Purpose of processing | Informing the User by means of voice communication and e-mail |
|---|---|
| Personal data |
|
| Legal grounds |
|
| Types of personal data processing |
|
7. Terms of personal data processing
7.1. The processing of personal data is carried out with the consent of the personal data subject to the processing of his personal data.
7.2. The processing of personal data is necessary to achieve the goals stipulated by an international agreement of the Russian Federation or a law, to carry out the functions, powers and duties assigned to the operator by the legislation of the Russian Federation.
7.3. The processing of personal data is necessary for the administration of justice, the execution of a judicial act, an act of another body or official subject to execution in accordance with the legislation of the Russian Federation on enforcement proceedings.
7.4. The processing of personal data is necessary for the execution of a contract to which the personal data subject is a party or beneficiary or guarantor, as well as for the conclusion of a contract on the initiative of the personal data subject or a contract under which the personal data subject will be a beneficiary or guarantor.
7.5. The processing of personal data is necessary to exercise the rights and legitimate interests of the operator or third parties or to achieve socially significant goals, provided that the rights and freedoms of the personal data subject are not violated.
7.6. Personal data is processed, access to which is granted to an unlimited number of persons by the subject of personal data or at his request (hereinafter referred to as publicly available personal data).
7.7. Personal data subject to publication or mandatory disclosure in accordance with federal law is processed.8. Procedure for the collection, storage, transfer and other types of personal data processing
The security of personal data processed by the Operator is ensured through the implementation of legal, organizational and technical measures necessary to fully comply with the requirements of current legislation in the field of personal data protection.
8. Procedure for the collection, storage, transfer and other types of personal data processing
The security of personal data processed by the Operator is ensured through the implementation of legal, organizational and technical measures necessary to fully comply with the requirements of current legislation in the field of personal data protection.
8.1. The Operator ensures the safety of personal data and takes all possible measures to exclude access to the personal data of unauthorized persons.
8.2. The User’s personal data will never, under any circumstances, be transferred to third parties, except in cases related to the implementation of current legislation or if the subject of personal data has given consent to the Operator to transfer data to a third party to fulfill obligations under a civil contract.
8.3. In case of inaccuracies in personal data, the User can update them independently by sending a notification to the Operator to the Operator’s email address
contact@i-hydro.ru
8.4. The period of processing of personal data is determined by the achievement of the purposes for which personal data was collected, unless another period is provided for by the contract or current legislation..
The User can withdraw his consent to the processing of personal data at any time by sending a notification to the Operator via e-mail to the Operator’s e-mail address contact@i-hydro.ru marked “Withdrawal of consent to the processing of personal data”.
8.5. All information collected by third-party services, including payment systems, means of communication and other service providers, is stored and processed by these persons (Operators) in accordance with their User Agreement and Privacy Policy. The subject of personal data and/or with the specified documents. The Operator is not responsible for the actions of third parties, including the service providers specified in this paragraph.
8.6. The prohibitions established by the subject of personal data on the transfer (except for granting access), as well as on the processing or processing conditions (except for obtaining access) of personal data permitted for distribution, do not apply in cases of processing of personal data in the state, public and other public interests defined by the legislation of the Russian Federation.
8.7. When processing personal data, the Operator ensures the confidentiality of personal data.
8.8. The Operator stores personal data in a form that allows determining the subject of personal data, no longer than the purposes of personal data processing require, unless the period of personal data storage is established by federal law, an agreement to which the subject of personal data is a party, beneficiary or guarantor.
8.9. The condition for the termination of personal data processing may be the achievement of the purposes of personal data processing, the expiration of the consent of the personal data subject, the withdrawal of consent by the personal data subject or the requirement to terminate the processing of personal data, as well as the identification of unlawful processing of personal data.
9. List of actions performed by the Operator with the received personal data
9.1. The Operator collects, records, systematizes, accumulates, stores, clarifies (updates, changes), extracts, uses, transfers (distribution, provision, access), depersonalizes, blocks, deletes and destroys personal data.
9.2. The Operator performs automated processing of personal data with or without receiving and/or transmitting the received information via information and telecommunication networks.
10. Cross-border transfer of personal data
10.1. Prior to the start of cross-border transfer of personal data, the Operator is obliged to notify the authorized body for the protection of the rights of personal data subjects of its intention to carry out cross-border transfer of personal data (such notification is sent separately from the notification of the intention to process personal data).
10.2. Before submitting the above notification, the Operator is obliged to receive relevant information from the authorities of a foreign state, foreign individuals, foreign legal entities to whom the cross-border transfer of personal data is planned.
11. Confidentiality of personal data
The operator and other persons who have gained access to personal data are obliged not to disclose to third parties and not to distribute personal data without the consent of the subject of personal data, unless otherwise provided by federal law.
12. Final provisions
12.1. The User can receive any clarifications on issues of interest concerning the processing of his personal data by contacting the Operator via e-mail
contact@i-hydro.ru
12.2. This document will reflect any changes to the personal data processing policy by the Operator. The policy is valid indefinitely until it is replaced by a new version.
12.3. The current version of the Policy is freely available on the Internet at https://i-hydro.ru .
