Semi-Automatic Twistlock (Large Flange) BD-J2

Designed for Heavy-Duty Port and Yard Operations, Available for Direct Order

Technical Specification of Container Twist Lock

Semi-Automatic-Twistlock-Large-Seat
  • Model: BD-J2
  • Weight: 5.45KG
  • B.L. Shear: 420 kN (Min)
  • B.L. Tension: 500 kN (Min)
  • Safe Working Shear: 210KN
  • Safe Working Tension: 250KN
  • Material:Forged Steel
  • Finish: Hot Dip Galvanized
  • Class Approval: ABS, DNV-GL, CCS, Others
  • Category: Loose Fittings on Deck
  • Tags: Twist Lock; Container twistlock; ISO container twist locks; Lashing Equipment; Dovetail Twistlocks

Product Overview

This container twist lock (Semi-Automatic Twistlock One Wire Large Flange) is designed for securing shipping containers on vessels, rail wagons, and in container yards. It automatically locks during stacking and can be easily released by pulling a single wire handle. The large flange design provides enhanced load-bearing capacity and stability, making it ideal for heavy-duty shipping operations.

OLIPORTS Semi-Automatic One Wire Large Flange Container Twist Lock sets the standard for safety and efficiency in container handling. Manufactured with superior craftsmanship, it combines automatic locking with centralized control. The large flange design guarantees exceptional stability and structural integrity, making it ideal for the demanding environments of ports, terminals, and container yards. If you are looking for a reliable shipping container twist lock for sale, this is the ultimate choice.

There are various types of intermediate twistlocks available, including wide-body intermediate twist locks, semiautomatic variants, midlocks, turnfoot twistlocks, intermediate stackers, and more. This type of shipping container twist lock typically require locking after lashing, while intermediate cones do not. Additionally, the twist locks can be locked either on the left or right side, allowing for flexibility in securing containers based on specific requirements.

As a professional supplier with over 10 years of industry experience, our company specializes in the production and export of container fittings and securing systems. OLIPORTS semi-automatic twistlock products are made of high-quality alloy steel and tested under strict quality standards, ensuring durability and reliability in marine and railway applications. We offer standard models such as the large seat semi automatic twistlock, as well as customized models and weights, with stable supply capacity and fast delivery. If you are looking for trusted semi automatic twistlock parts and long-term cooperation, we are your reliable partner.

Drawings and Features of Semi-Automatic Twistlock BD-J2

Key Features

Note: The flange size should be selected according to the dimensions of the container corner casting (e.g., 178 mm × 162 mm as specified in ISO 1161); Some products are available in left- or right-hand rotation models, which should be chosen based on the actual installation position; Regularly inspect the locking rod for wear and check the integrity of the galvanized coating to prevent performance degradation caused by corrosion.

  • Automatic locking, one-wire control for quick release
  • Large flange design for greater stability and force distribution
  • Manufactured from high-strength cast steel, wear and corrosion resistant
  • Custom solutions tailored to customer requirements
  • Compatible with standard ISO container corner castings
  • Weldable & Class Approved: Meets ABS, DNV-GL, CCS, and ISO standards

Application

  • Securing on Vessel Decks and Hatch Covers: Used on container vessels to secure containers on decks and hatch covers, preventing movement during voyages and reducing manual handling.
  • Railway Flat Wagon Transport: Applied on rail flat wagons to keep containers stable during high-speed travel or braking, with one-wire release for faster unloading.
  • Port Terminal Stacking: Ideal for stacking containers in ports and yards. The large flange design provides extra stability and safety under heavy loads.
  • Heavy-Duty Logistics and Intermodal Transport: Ensures container safety in heavy-duty logistics and multimodal shipping, keeping cargo secure across sea, rail, and road transport.

If you are considering what are the advantages in using a semi automatic twistlock, the above scenarios show how they improve efficiency, safety, and reliability in different transportation environments.

Recommended Accessories

To ensure complete safety and stability of containers during vessel, railway, and port operations, semi-automatic twist locks are often used together with the following accessories:

  • Base Cones: Mounted on vessel decks or hatch covers, serving as the foundation for twist locks to secure containers in place.
  • Bridge Fittings: Used between the tops of adjacent containers to prevent horizontal movement.
  • Stacking Cones: Applied during container stacking to assist alignment and withstand vertical loads.
  • Container Lashing Equipment: Includes lashing rods, turnbuckles, D-rings, and related fittings to provide additional securing between containers and vessel structures.
  • Automatic Twist Lock Containers: A fully automated alternative to semi-automatic twist locks, offering labor-free locking and unlocking for high-efficiency loading operations.

By combining these accessories, we provide customers with a complete container securing system, covering vessel, rail, and intermodal transport requirements.

Why OLIPORTS?

At OLIPORTS, we manufacture container securing components with unmatched engineering precision and industry know-how.

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 drawings and classification standards
  • Over 10 years of global lashing system supply experience
  • Support for custom layouts to match your vessel and route
  • Certified by CCS, ABS, DNV-GL, and compliant with ISO 3874 / ISO 1161
  • Fast quote turnaround and fewer sample revisions
  • Trusted by yards, shipowners, and retrofit contractors worldwide

Built to perform. Certified to last. Delivered on time. Our in-house design and fabrication capabilities ensure fast delivery, high compatibility, and long-term durability.

Request a Quote or Drawing

OLIPORTS offer: Technical Datasheet PDF、Material Certificates、DWG or STEP files for design integration、On-request layout support. Our lashing experts typically reply within 24 hours. 💡 Based on your port design, berthing energy, and vessel data, we’ll provide:
⚙️ Recommended drawings & specifications
💬 A tailored quotation with best lead time
📎 Support for class approval documents

Contact Us

We’re here to assist you with any inquiries. One of our product specialists will get back to you within 24 hours with the information you need.

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