Cargo D Rings are essential hardware for securing heavy loads during international shipping and logistics. Designed for use on ISO container floors, trailers, flatbeds, and marine platforms, they serve as fixed anchoring points for d ring lashing systems.

At OLIPORTS, we supply heavy duty d rings designed for the toughest cargo lashing conditions. Whether you’re securing containers at sea, tying down cargo on trucks, or anchoring heavy equipment, our forged cargo d ring systems provide unmatched reliability and strength.

At OLIPORTS, we offer two standard load-rated models:

• 36 Ton Cargo D Ring
• 50 Ton Cargo D Ring

Both versions feature a robust ISO hole base, allowing seamless installation into compatible container or platform structures.

Built from forged steel and tested to withstand harsh conditions, our heavy duty d rings provide safe, compliant, and durable cargo restraint solutions.

Compact, durable, and fully ISO-compliant, this fitting is essential for standardized container lashing and securing systems on modern vessels.

Available Options: D Ring 36T and 50T ISO Hole Base

36T ISO Hole Base D Ring

Technical Specification of Cargo D-Ring 36Ton AL-L1/36T

• Model: AL-L1/36T
• Weight: 6.2 kg
• Load Capacity: 36 Tons
• SWL: 180 kN; Breaking Load: 360 kN
• Material: Heat Treatable Steel
• Surface: Heat treated + shot blasted
• Finish: Shop Primer
• Class Approval: ABS, DNV-GL, CCS, Others
• Category: Fixed Fittings on Deck
• Tags: Weldable D-Ring, Cabin Fixtures, D Ring, ISO Hole Base,

* Can be customized according to your needs, type and test class approved on request. Please contact us

Drawings and Features of Turnfoot D-Ring 36Ton

Key Features

The 36T cargo d ring is ideal for general-purpose lashing on containers, trailers, and railcars. With a compact design and standard ISO base plate, it offers fast installation and long-term stability.

• Mounting Type: ISO hole pattern, universal compatibility
• Perfect for container d ring systems
• Lightweight and easy to deploy
• Cost-effective without compromising safety
• Ideal for mining equipment, general industrial machinery, and trailer cargo
• Compliant with ISO/EN lashing standards – Suitable for international shipping and securing systems
• Customizable sizes and finishes available – Meets diverse installation and engineering requirements

50T ISO Hole Base D Ring

Technical Specification of Cargo D-Ring 50Ton AL-L1/50T

• Model: AL-L1/50T
• Weight: 7.0 kg
• Load Capacity: 50 Tons
• B.L. Tension: 500 kN (Min)
• Base Type: ISO hole pattern
• Material: Forged Steel
• Surface: Heat treated + shot blasted
• Finish: Shop Primer
• Class Approval: ABS, DNV-GL, CCS, Others
• Category: Fixed Fittings on Deck
• Tags: Weldable D-Ring, Cabin Fixtures, D Ring, ISO Hole Base,

Cargo-D-Ring-36T-ISO-Hole-Base-Drawing

Key Features

Designed for extreme conditions and high-value cargo, the 50T cargo d ring features a stronger structure and wider ring opening. It’s preferred for marine cargo, steel coil tie-downs, and offshore modules.

• Mounting Type: ISO hole pattern, universal compatibility
• Perfect for container d ring systems
• Designed for heavy duty d rings applications
• Superior tensile strength and safety factor
• Compatible with all major container d ring and flat rack systems
• Withstands harsh marine and industrial environments
• Especially suitable for critical d ring lashing arrangements on ports, ships, and flat-rack containers
• Compliant with ISO/EN lashing standards – Suitable for international shipping and securing systems
• Customizable sizes and finishes available – Meets diverse installation and engineering requirements

Common Applications of Cargo D Rings

The D RING ISO HOLE BASE is widely used in container lashing, flatbed trailers, cargo platforms, and heavy-duty transportation applications. Acting as a critical anchor point, these cargo d rings provide secure and stable tie-down solutions for heavy loads. Whether installed on container floors, trailer decks, or steel structures, they work seamlessly with ratchet straps, chains, and wire rope systems to prevent cargo from shifting during transit.

Thanks to their ISO base design and high-strength build, these heavy duty d rings are ideal for containerized shipping, flat-rack securing, and equipment transport. The 36-ton and 50-ton d ring lashing fittings offer different load-bearing options tailored to the weight and type of cargo being handled.

These fittings are commonly used in:

• ISO container corners or base frame welding
• Flatbed trailer tie-down systems
• Ship deck and bulkhead lashing solutions
• Construction equipment transport
• Military cargo and modular shelters

Whether you need a container d ring, turnfoot d ring, or other anchor-type solution, OLIPORTS’s ISO HOLE BASE D RINGS provide durable performance in the most demanding logistics scenarios — ensuring your cargo stays safe, compliant, and secure from origin to destination.

Comparison Between 36T and 50T Cargo D Rings

With over a decade of manufacturing and global distribution experience, OLIPORTS has developed deep expertise in container lashing and cargo securing systems. We fully understand the design drawings, structural layouts, and mechanical calculations behind every container ship’s securing solution — allowing us to respond quickly and accurately to your technical requirements.

• Deep understanding of ship lashing plans and design drawings
• Support for custom layouts to match your vessel and route
• ISO-compliant and class-approved products with full documentation
• Fast quote turnaround and fewer sample revisions
• Trusted by yards, shipowners, and retrofit contractors worldwide

Built to perform. Certified to last. Delivered on time.