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Marine Loading Arms

To sea, to land, and into the future -- loading arms making their mark in various fluid loading situations

A Proud History in Creating Loading Arms

Loading arms are a type of equipment that loads fluids into tankers and tank trucks. In 1955, by becoming the exclusive Japanese distributor for US company Chiksan Corporation (currently FMC Technologies Inc.), the world's first developer and manufacturer of all-steel loading arms, our predecessor Tokyo Boeki Shokai became the first Japanese company to handle loading arms, and in 1959, started technical collaboration with Chiksan Corporation. Since then, we have moved forward with switching to Japanese production of loading arms and related equipment and facilities, as well as with active technical development.#*# As a result, we now produce a wide line-up of products that can handle the safe loading and unloading of fluids that include petroleum and petrochemical products, high-pressure gas, and other special fluids at a range of temperatures that range from the very high through to the very low.

* Design & manufacture :

Marine Loading Arms

From normal through to cryogenic temperatures, meeting a range of fluid loading needs

Marine loading arms were first made commercially available in 1956 by US company Chiksan Corporation. Until this point, rubber hoses were the main method used for fluid loading and unloading on ships, but loading arms have eliminated concerns regarding extension or bending, improving the safety and efficiency of loading and unloading operations, and enabling smooth, rapid operations even in difficult conditions. Loading arms are now consequently used in ports around the world for many of these operations. Our marine loading arms support small through to very large tankers, and can handle loading and unloading operations for cryogenic liquids such as LNG (-162°C) through to materials with high melting points such as molten sulfur (120°C) and asphalt (180°C), as well as sulfuric acid and caustic soda, or slurries combining solids with liquids.
Our loading arms are still in use 50 years after their installation, and have proved themselves to have outstanding functionality and durability.

Marine Loading Arms for Cryogenic Services

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FBMA (Fully Balanced Marine Loading Arm)

These have a simple structure using a main counterweight and sub-counterweight, ensuring full balance in all positions. These can be operated with few personnel, and have an easy-to-maintain structure. As a result, these are the most commonly used type of marine loading arms.

◎External diameter:80A~300A(3B~12B)
◎Intended tankers:100~10,000DWT

RCMA (Rotary Counterweighted Marine Arm)

These are used mainly in loading and unloading medium to large tankers. RCMA uses a single counterweight to balance both inboard and outboard arms simultaneously, and is significantly lighter when compared to former large loading arms (DCMA, etc.).
These can be customized through the addition of emergency release systems, radio control equipment, hydraulic couplers, cartridge type joints, and other options that let customers create systems tailored to their own needs.

◎External diameter:80A~300A(8B~24B)
◎Intended tankers:3,000~500,000DWT

DCMA(Double Counterweight Marine Arm)

The DCMA loading arm uses two independent counterweights, as well as a pantograph to ensure full balance in all positions. The inboard and outboard are balanced separately, resulting in separate operation and control for both of these.
A feature of the DCMA is a smaller area required for rear counterweight movement than with the RCMA. The same options as available for the RCMA can be fitted, and this loading arm has a long-proven record.

◎External diameter:200A~600A (8B~24B)
◎Intended tankers:3,000~500,000DWT

Emergency Release System

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Quick Coupler (QCDC)

This is installed at the extremity of marine loading arms, and enables easy hydraulic connection and disconnection with tanker flanges. When used together with a radio control devices, this can contribute towards lower personnel requirements, increased speed, and labor savings.

Position Monitoring System (PMS)

This uses an angle sensor installed on the loading arm, and displays in real time both the position of the end of the arm, and the mooring position of the tanker, assisting in safe management of loading and unloading operations.

Maintenance and Customer Support

Rapid repairs using genuine parts for high reliability
Our support system offers peace of mind nationwide.

This equipment is manufactured by Niigata Loading Systems, Ltd., which in addition to carrying out inspections and repair, also provides full after-sales service that includes technical guidance and product sales. Repairs and product replacement use genuine parts for unsurpassed accuracy and functionality. Scheduled inspections and maintenance, as well as use of genuine parts, are the secrets to long equipment life.

Main Loading Arm Equipment Construction Process
1) Work design Obtain permits and certificates based upon work specification sheets.
2) Work preparations Prepare tools and parts, confirm the scope of the work, and secure the work area.
3) Loading arm inspections and maintenance
- Assembly of scaffolding - Disassembly of machinery - Implementation of inspection and maintenance - Repair using "genuine parts" as necessary -Non-destructive inspection - Painting work - Tightness leak testing - Operational testing

We provide the following services.

Repair support Prompt handling of urgent requests for repair.
Inspection and Maintenance We are proud of our responsible work system. Please consult with your nearest management contact regarding maintenance.
Technical Guidance We dispatch "technical directors" for new installations and for periodic testing. We also carry out on-site training for customers.
Part Sales Spare parts are sent directly from the parts center, and we are committed to providing the speed and reliability of dealing with the factory directly.