Container Mid-Lock BD-K2
— Container Midlock for Two 20 Foot in 40 Foot Slot —
Product Overview
The Container Midlock, often referred to as an automatic fixing cone or twistlock midlock, is a non-negotiable safety component in modern container lock system. This automated device is engineered to create a secure, horizontal bridge between the top corner castings of adjacent containers on the same tier, effectively locking them together to prevent dangerous shifting during ocean transport.
What is a Container Midlock?
A container midlock is the key to inter-box connectivity. While standard twist locks secure vertical stacks, the container lashing mid-lock specializes in horizontal stability. It is placed between two side-by-side containers. As the next tier of containers is lowered, the innovative automatic fixing cone is activated. The sheer weight of the upper container forces the cone down, triggering an internal spring mechanism that automatically rotates the lock head, securely engaging it into the bottom corner casting above. This single action seamlessly integrates four corner castings into a unified, rigid structure.
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 semi automatic twistlock BD J1, 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.
Technical Specification of Semi-Automatic Twistlock
- Model: BD-K2
- Weight: 4.5KG
- B.L. Shear: 420 kN (Min)
- B.L. Tension: 500 kN (Min)
- Safe Working Shear: 210KN
- Safe Working Tension: 250KN
- Material: Casting Steel
- Finish: Hot Dip Galvanized
- Class Approval: ABS, DNV-GL, CCS, Others
- Category: Loose Fittings on Deck
- Tags: Midlock, Twist Lock; Container Midlock; Aotumatic Fixing Cone; Automatic Twistlock
* Can be customized according to your needs, type and test class approved on request.
Drawings and Features of Twistlock Mdilock BD-K2
- Automated Efficiency: No manual locking/unlocking needed–slashes loading/unloading time, ideal for high-speed logistics workflows.
- Robust & Corrosion-Resistant: Crafted from cast steel (some models feature markings like “BD – K2/C”for identification) and often hot-dipped galvanized, it withstands marine corrosion. With a 50-ton breaking load, it handles complex shipping forces.
- Automatic locking/unlocking at ISO-gap position in combination with semi-automatic twistlocks at opposite container end
- Weldable & Class Approved: Meets ABS, DNV-GL, CCS, and ISO standards
Related Products & Market Context
Container midlock is a vital variant of Cargo container twist lock. The market also offers manual twistlocks, semi-automatic twistlocks, and other Container twist lock types for diverse scenarios. As a professional supplier in the field of Container twist locks for sale, OLIPORTS has core advantages in supplying container midlock and twistlock midlock:
- Experience & Expertise: With 10+ years of R&D and production experience in container lashing equipment, we have a deep understanding of safety requirements in maritime scenarios;
- Quality Assurance: Equipped with advanced production and quality inspection systems, all products are certified by authoritative classification societies such as CCS, BV, and ABS;
- Service Capability: We support customized production (e.g., special markings, anti-corrosion process optimization) and provide technical support and global fast logistics delivery to ensure a smooth process for customers from procurement to use.
If you have requirements for container midlock, twistlock midlock, or other container lashing equipment, or want to know more about customization, pricing, etc., please contact us via online message on our official website, email, or phone. Our professional team will provide you with support and service in a timely manner.
With our one-stop supply of twistlock for container together with related securing accessories, we help customers reduce procurement costs, improve efficiency, and guarantee safe transport across marine, rail, and yard operations.
Application Scenarios & Core Functions
When two 20-foot containers need placement in a 40-foot slot, the container midlock (automatic fixing cone type) installs at containers’ bases. Leveraging containers’ tilt during lifting, it enables automatic locking—resisting horizontal forces and separation to prevent shifting/collisions, safeguarding multi-container configurations in transit.
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.
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.
