Double Bollard Marine Hardware Steel Deck Plate Fairlead Chock New Single Bitt Design ISO 13795 Certified

Material and Manufacturing:

Material Advantages:

Main Body (Single Bitt Double Bollard): It is mainly made of welded steel plates and steel pipes. The selected materials have a yield point of no less than 235 N/mm², which ensures the bollard has sufficient structural strength to bear huge tension during mooring. Some customized products can also use special materials to adapt to low - temperature environments as low as -50 °C, expanding their application scope in cold sea areas.
Steel Deck Plate: As the installation base of the bollard and fairlead chock, it is made of high-strength marine steel. It has strong load-bearing capacity and can firmly connect the device to the ship's deck. When the bollard is subjected to mooring tension, it can evenly disperse the force to the ship's deck structure, avoiding local stress concentration and damage.
Fairlead Chock: It is integrated with the bollard and is also made of steel. Its contact surface with the mooring rope is polished to be smooth without roughness or irregularities. This design can reduce the friction between the rope and the chock, effectively reducing the wear of the mooring rope and prolonging the service life of the rope.

Manufacturing Process:

Cutting and Forming: Firstly, according to the design specifications, the steel plates and steel pipes are accurately cut by professional cutting equipment. The cutting size error is strictly controlled to lay the foundation for subsequent assembly and welding. Then, the cut steel parts are formed by bending and other processes to meet the structural requirements of the bollard and fairlead chock.
Precision Welding: The formed parts are welded in accordance with strict welding standards. The welding process focuses on ensuring the firmness of the welding joints. After welding, professional inspections are carried out to ensure that there are no defects such as cracks, scars, and holes at the welding points. This avoids structural failure of the bollard due to insufficient welding strength during use.
Surface Treatment: The entire device undergoes sandblasting treatment to reach the S2.5 standard. This step can remove rust, oil stains and other impurities on the surface. After sandblasting, a layer of epoxy shop primer or other anti - corrosion protective coatings is applied. This double protection can effectively resist the corrosion of salt spray and seawater in the marine environment.
Inspection and Certification: After the production is completed, dimensional inspection, load - bearing test and other tests are carried out. Only the products that meet the ISO 13795 standard can pass the inspection. In addition, relevant tests can also be carried out according to requirements to obtain classification society certifications such as CCS, ABS, and BV, so as to meet the access standards of the global maritime market.

Features:

Innovative Single Bitt Design with Strong Load - Bearing Capacity: Different from the traditional double - bitt structure, the new single bitt design is more compact while ensuring the mooring performance. Its nominal diameter ranges from 100mm to 600mm, and the weight is between 29kg and 1391kg. The maximum breaking load can meet the mooring needs of different types of ships, from small and medium - sized ships to large commercial ships.
Integrated Design Improves Operational Efficiency: The integration of the double bollard and the steel deck plate fairlead chock eliminates the need for separate installation of the two devices. During mooring operations, the fairlead chock can guide the mooring rope to the bollard smoothly. This not only saves the installation space on the ship's deck but also avoids the problem of rope jamming caused by the mismatch between the separate bollard and fairlead chock.
Reliable Quality with Standard Certification: Being certified by ISO 13795 means that the product's design, materials, and performance all comply with international marine industry standards. It has high reliability and interchangeability. Shipowners and shipyards can use it with confidence, and it also facilitates the unified management and maintenance of marine equipment.
Strong Customization Adaptability: Manufacturers can customize the size, base type (compact base plate Type A or wide base plate Type B) of the product according to the specific needs of customers. It can also be optionally equipped with eye plates for tying the stopping - off rope and other components. It can also be customized with different surface coating colors to meet the personalized needs of different ships and application scenarios.

Technical Parameters:

Application Scenarios:

Commercial Ships: It is widely used in the deck mooring of various commercial ships, such as container ships, bulk carriers, oil tankers, and cruise ships. When these ships berth at ports, docks, and other places for loading and unloading operations, the device can firmly fix the mooring rope to ensure the stability of the ship.
Port and Wharf Facilities: In addition to being installed on ships, it can also be installed on port jetties, berths, and dolphins. It is used to assist the mooring of ships berthing at the port. Its strong load - bearing capacity and corrosion resistance can adapt to the high - frequency mooring operations in ports and the harsh marine atmospheric environment.
Special Marine Vessels: It is also suitable for special marine working ships, such as offshore supply ships and marine rescue ships. When offshore supply ships berth near offshore oil platforms to transport materials, and when rescue ships carry out on - site rescue operations alongside damaged ships, this bollard can provide stable mooring support to ensure the safety of on - site operations.

Support and Services:

1. Full-Process Technical Support
Preliminary Design
Provide professional selection guidance, recommending suitable single-post bollard models (e.g., 50-500+ kN load rating) and materials (e.g., 316L stainless steel, cast steel, FRP, etc.) based on parameters such as terminal class, vessel type, and hydrological conditions (e.g., tides and waves).
Assist in anchoring system design, including anchor specifications, concrete filling scheme, and anti-corrosion coating system (e.g., three-layer epoxy zinc-rich coating, total thickness ≥ 280 μm, design life 15 years).
Provide 3D modeling and simulation analysis to verify the bollard's stability under dynamic loads, such as evaluating the impact of tidal fluctuations on the anchoring structure through finite element analysis.
Installation and Construction Support
Provide standardized installation manuals and construction plans, covering key steps such as foundation preparation, anchor calibration, torque control (applied to 110% of the design value in three steps), and concrete pouring. On-site Technical Guidance: Engineers are dispatched to assist with lifting and positioning (e.g., ensuring verticality deviation ≤ 1° using a four-point hanger), bolt tightening (recording each point with a torque wrench), and anti-corrosion repair (adding 50mm to the damaged area).

Specialized tools and equipment are provided, such as ultrasonic flaw detectors to detect internal defects and torque wrenches to ensure bolt preload meets standards.

II. Quality Assurance and Certification Services

Strict Quality Testing

Raw Material Inspection: Steel undergoes tensile strength (≥800MPa) and impact toughness (≥20J/cm²) testing, while cast iron undergoes hardness (HB180-220) and metallographic analysis.

Manufacturing Process Control: Utilizing processes such as die casting and CNC machining, we ensure dimensional accuracy (e.g., column verticality deviation ≤ H/1000) and surface quality (sandblasting and rust removal to Sa2.5). Finished Product Testing: Corrosion resistance is verified through a destructive test at 125% of the rated load (no plastic deformation after 30 minutes of load holding) and a salt spray test (no corrosion after ≥1000 hours in a neutral environment).

International Certification Support

We provide certifications such as ISO 13795, GB/T 25010, ABS, DNV, and Lloyd's Register to ensure compliance with international port access standards.

We support customers in completing on-site classification society inspections, including welding procedure qualifications and non-destructive testing (such as magnetic particle inspection) according to DNV specifications.

 
 
In addition, we offer a range of services to complement our mooring bollards products. These include custom design and engineering, installation and commissioning, and repairs and upgrades. Our goal is to provide a comprehensive solution to meet your mooring needs, from product selection to ongoing support.
Any question please let us know ,our JinCheng maritime will provide you the best service with 7*24 hours ~