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Electric-driven gantry cranes are designed for cargo handling, transfer, and stowage of deck hatch covers, as well as other auxiliary operations.
The design ensures efficient handling of large-size cargo along the full length of the deck, while an auxiliary crane manipulator enables prompt handling of smaller loads. This solution ensures reliable and stable lifting operations in maritime environments.
The Model 20T gantry crane ensures reliable handling of deck hatch cover sections up to 20 t and 13.5 m in width. The auxiliary crane manipulator allows efficient handling of loads of up to 3 t, enabling their lifting onto the deck and subsequent transfer.
Loading model
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The upper frame is a steel structure that serves as the primary load-bearing element of the crane. It provides mounting for the hoisting winches, sheave blocks, cable drum, and the auxiliary crane manipulator. The design ensures enhanced reliability, efficiency, and operational stability of all installed equipment.
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The gantry legs reliably carry the upper frame and transfer loads to the travel bogies. This design ensures stability and uniform load distribution, maintaining stable crane operation.
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The travel bogies enable crane movement along the rail track. The design ensures reliability through flanged drive wheels, an anti-tip locking device, and buffers. Additional safety is provided by a rail sweeper, which clears foreign objects from the rails.
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The hoisting winches ensure safe and reliable handling of loads up to 20 t. The design, based on a welded drum and drives incorporating a gearbox, brake, and electric motor, provides precise and safe lifting. The reeving system protects the wire ropes from wear, increasing service life.
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The spreader ensures secure gripping and handling of loads up to 20 t with dimensions of 13.5 × 2 m. The design, featuring transverse beams and load-handling attachments, ensures stability, while the reeving system prevents load sway, enabling precise positioning.
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Guardrails, ladders, and platforms provide safe access for maintenance personnel, minimizing operational risks.
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The auxiliary crane manipulator mounted on the upper frame handles loads of up to 3 t. A boom outreach of up to 4 m and a hook travel of 16.5 m enable efficient handling of small loads both on deck and overboard.
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The cable drum installed on the upper frame provides uninterrupted power supply to the crane during travel along the rail tracks. This ensures stable operation of all installed electrical equipment.
The following documentation provided with the crane:
| Document | Quantity |
|---|---|
| Product Data Sheet | 1 |
| Installation and Commissioning Manual | 1 |
| Operating Manual | 1 |
| Onboard Test Program and Methodology | 1 |
| Factory Acceptance Test (FAT) Report | 1 |
| Spare Parts and Tools List | 1 |
The Crane That Works Amidst the Waves: How to Open a Giant’s Hold
When we look at a massive container ship, we only see the tip of the iceberg. The real magic is hidden inside — in the holds filled with cargo. But how do you reach that cargo when the hatches are battened down and the vessel is in port under gusts of salty wind? The answer is a specialized marine crane. Today, we take a look inside a 20-ton “strongman” that doesn’t just lift heavy loads, but also knows how to stow away below deck, endure storms, and operate without fear of explosions.
A Crane for a Special Mission
An ordinary portal crane is a sight to behold. However, a hatch cover gantry crane is a piece of equipment with a narrow specialization. Its main task is to shift and remove multi-ton steel hatch covers to open the hold. Imagine a giant bandage covering a pit. It cannot be removed by hand, and doing it with a regular crane is too slow and dangerous. Our hero moves along rails directly over the hatch like a portal, neatly removing the covers section by section and stacking them right there on the deck. But as soon as the job is done, it must transform into a compact structure that does not interfere with the vessel’s departure to sea.
Why It’s More Complex Than It Seems
A vessel is never stationary. It rolls, lists up to 5 degrees, and endures powerful wind loads. The documentation specifies rigid parameters: wind pressure up to 400 Pa and temperatures down to -25°C. A shore-based crane is just a machine; a marine crane is a device that must operate under “rollercoaster” conditions. Its design must be not only robust but also “dynamic” — absorbing shocks, remaining operational during trim (when the vessel inclines toward the bow or stern up to 2 degrees), and staying securely fixed during a storm.
What it’s Made Of
To withstand the motion of the sea and heavy loads, engineers selected a specialized steel grade — 09G2S. This is not just iron, but an alloy that maintains its toughness in the cold and does not crack under stress. The entire structure is a massive assembly weighing tens of tons, built from heavy-duty welded beams.
The main components include:
The Secret Weapon: The Secondary Crane
The most interesting feature of this unit is the “auxiliary knuckle-boom crane”. It is essentially a smaller crane (3-ton capacity) mounted directly on the upper frame of the main unit. When there is a need to lift small cargo, tools, or perform overboard tasks, there is no need to engage the massive 20-ton mechanism. The manipulator extends (with a 4-meter reach), performs its task, and folds back. It is like having not just a sledgehammer in your arsenal, but a precision hammer as well.
How It Is Controlled
Forget about steering wheels and levers. Everything is operated via a compact belly-pack remote control. The operator stands on deck with a clear view of the load and directs the crane’s movement by pressing buttons. The speeds here are not for racing — hoisting is just 10 meters per minute. Why not faster? To ensure the precise positioning of multi-ton covers without smashing them or damaging the deck.
The control system is the “brain.” It ensures the crane does not collide with obstacles (via limit switches), prevents you from accidentally running both cranes simultaneously (interlocking), and ensures the rated load capacity is never exceeded.
Safety in Every Bolt
Marine equipment operates in an aggressive environment: saltwater, spray, and wind. Therefore, all electrical equipment here features an IP56 dust and water protection rating. The 2Ex d II T4 marking ensures the crane is spark-proof and safe even in explosive atmospheres (for instance, near fuel).
The design impresses with its attention to detail. For example, the travel bogies are equipped with specialized rail guards. These are not for aesthetics — they clear foreign objects from the rails to prevent the wheels from striking obstacles. Rubber buffers absorb impact energy if the crane reaches its end stops. Even the steel for the block axles is specialized — high-strength 30KhGSA (30HGSA) alloy, chosen to prevent shearing during sudden load jerks.
Summary
This crane is a perfect example of an engineering ecosystem. It is self-sufficient, intelligent, and adapted to life at sea. Its task is not just to lift a load, but to do so quickly, safely, and compactly, clearing the deck when it’s time to weather a storm. A vessel is an organism, and such a crane is one of its strong and precise muscles.
| Parameter | Value |
|---|---|
| Safe Working Load (SWL), t | 20 t |
| Hoisting / lowering speed, max., m/min | 10 m/min |
| Travel speed, max., m/min | 23 m/min |
| Simultaneous travel and hoisting/lowering | No |
| Spreader lifting / lowering height, min., mm | 2950 mm |
| Crane span, mm | 13560 mm |
| Rail type | KP70 |
| Hoisting winch drive power, kW | 44 kW |
| Crane travel drive power, kW | 30 kW |
| Power supply | AC, 50 Hz; 380 V±10% |
| Explosion-proof design | 2 EX II T4 |
| IP rating | IP 56 |
| Crane weight, t | 40 t |
| Safe Working Load (SWL), t | 3 t |
| Hoisting / lowering speed, max., m/min | 10 m/min |
| Trolley travel speed, max., m/min | 10 m/min |
| Slewing speed, max., rpm | 1 rpm |
| Hook outreach, max., m | 4 m |
| Hook travel, max., m | 16.45 m |
| Installed electric motor power, kW | 17.2 kW |
| Power supply | AC, 50 Hz; 380 V±10% |
| Explosion-proof design | 2 EX II T4 |
| IP rating | IP 56 |
| Crane weight, t | 4 t |
| Ambient temperature, °С | -25°…+35° |
| Heel (either side), ° | up to 5° |
| Trim (bow or stern), ° | up to 2° |
| Wind load, Pa | ≤400 Pa |
The equipment complies with the following requirements:
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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 .
