Safe and efficient mooring depends on more than ropes and bollards. Marine chocks are critical load-guiding components that control mooring line direction, reduce abrasion, and protect both vessels and crews. As a professional Marine Chock Manufacturer, Nanjing Taidun specializes in the manufacturing of Panama Chock and Bulwark Mounted Chock, engineered for demanding marine and port environments.
Backed by extensive experience in rubber fenders, marine fenders, bollards, and steel structure products, Taidun provides OEM marine chock solutions to international shipyards, port authorities, offshore contractors, and marine equipment brands.
A marine chock is a steel fitting installed on a ship's bulwark or deck structure to guide mooring lines between the vessel and shore-based mooring equipment. Proper chock design ensures:
* Correct mooring line lead angles
* Reduced rope wear and fatigue
* Controlled load transfer
* Improved crew safety during berthing
As a load-bearing component, a marine chock must be structurally sound, dimensionally accurate, and compliant with international standards.

A Panama Chock is a heavy-duty marine chock designed with a large throat opening and smooth curvature, allowing mooring lines to pass safely under high tension. It is commonly used on large commercial vessels and in international shipping routes.
* Large radius throat to reduce line abrasion
* High load-bearing capacity
* Suitable for steel wire and synthetic ropes
* Designed for continuous heavy-duty operation
These characteristics make Panama chocks ideal for vessels operating in busy ports, canals, and high-load mooring conditions.
* Container ships
* Bulk carriers
* Tankers
* Panama Canal compliant vessels
* International port terminals
As an experienced Marine Chock Manufacturer, Taidun supplies Panama chocks tailored to vessel size, rope diameter, and project specifications.
A Bulwark Mounted Chock is installed directly onto the ship's bulwark structure, allowing the mooring line to pass through the ship side safely and efficiently. This type of chock is widely used where deck space is limited or where structural integration is required.
* Optimized for side-mounted mooring layouts
* Strong structural connection to hull or bulwark
* Efficient load distribution into ship structure
* Clean and organized mooring line routing
Compared to deck-mounted alternatives, bulwark mounted chocks provide better spatial efficiency and improved mooring geometry.
* Commercial vessels
* Offshore support vessels
* Port service ships
* Custom ship designs
Taidun engineers bulwark mounted chocks to match specific hull thickness, installation angles, and reinforcement requirements.

As a professional Marine Chock Manufacturer, Taidun selects materials based on load conditions and environmental exposure.
* Cast steel
* Carbon steel
* Low-alloy high-strength steel
Each batch is manufactured under controlled processes to ensure structural reliability and long-term durability.
1. Engineering design and load calculation
2. Casting or fabrication
3. CNC machining
4. Surface treatment
5. Dimensional and quality inspection
This process guarantees consistency, traceability, and OEM-level quality control.
Taidun manufactures Panama chocks and bulwark mounted chocks in accordance with major international standards, including:
* ISO
* DIN
* JIS
* GB
* IACS recommendations
Class-related documentation and third-party inspections (ABS, DNV, BV, LR, CCS) are available upon request.
Standard designs do not fit all vessels. As a flexible Marine Chock Manufacturer, Taidun supports OEM customization for both Panama and bulwark mounted chocks.
* Customized dimensions and load ratings
* Vessel-specific installation interfaces
* Project-required coatings and surface treatments
* Identification marking and branding
From drawing review to mass production, Taidun supports engineering teams and procurement managers throughout the project lifecycle.
When sourcing Panama chocks or bulwark mounted chocks, professional buyers should evaluate:
* Accuracy of load rating
* Rope compatibility
* Manufacturing consistency
* Compliance documentation
* Long-term corrosion resistance
Taidun focuses on engineering verification rather than catalog assumptions, reducing operational risk.
Beyond marine chocks, Taidun also supplies:
* Rubber fenders
* Marine fender systems
* Bollards
* Steel structure components
This integrated capability allows clients to source complete mooring solutions from one reliable manufacturer.

Global clients choose Taidun for:
* Proven OEM manufacturing experience
* Stable quality for large-volume orders
* Strong customization capability
* Professional export and inspection support
Taidun marine chocks are already deployed in ports, shipyards, and offshore projects worldwide.
If you are looking for a reliable Marine Chock Manufacturer specializing in Panama Chock and Bulwark Mounted Chock, Nanjing Taidun is ready to support your project.
Contact us today to discuss technical drawings, specifications, and OEM requirements.
Panama chocks are designed for high-load applications with large throat openings, while bulwark mounted chocks are integrated into the ship's side structure.
Yes. Both Panama and bulwark mounted chocks are engineered for high-load marine environments.
Yes. OEM customization is available based on drawings or technical requirements.
ISO, DIN, JIS, GB, and major classification society standards.
Yes. Third-party inspection services are fully supported.
Professional Marine Chock Manufacturer specializing in Panama Chock and Bulwark Mounted Chock for safe and reliable mooring systems. Nanjing Taidun provides OEM marine chocks compliant with international standards for ports, vessels, and offshore projects.