Large Seat Twistlock BD-C1
— Secure Your Containers with Manual Precision & Robust Reliability —
Product Overview
The Large Seat Twistlock is a widely used securing device for container ships, depots, and intermodal transport. Designed to be inserted into the container corner casting, this manual twistlock ensures firm locking and unlocking through a simple hand rotation. With its large seat flange design, it offers superior load-bearing capacity and shear resistance, making it ideal for heavy-duty container stacking and marine shipping operations.
OLIPORTS Manual Large Seat Twistlock is engineered for superior strength and reliability in securing shipping containers in the most demanding environments. Designed specifically for base applications, its large flange seat provides an expansive bearing surface, ensuring maximum stability and safety for container stacks. Available in both left-hand and right-hand locking versions to suit various operational requirements and preferences. Whether for port operations, warehouse storage, or long-distance transportation, this shipping container twist lock for sale meets the highest industry requirements for safety and durability.
Beyond delivering high-quality container twistlocks products, OLIPORTS also offers strong manufacturing and supply capabilities. We operate advanced casting and forging facilities under strict ISO quality management systems and have obtained multiple classification society certifications to guarantee compliance with international standards. With years of expertise in global trade, we provide bulk customization, fast delivery, and integrated logistics solutions, ensuring reliable support for ports, shipping lines, and container yards worldwide.
Technical Specification of Large Seat Twistlock
- Model: BD-C1
- Weight: 5.03KG
- Compression: 1200 kN (Min)
- SWL Shear 210KN
- SWL Tension: 250
- Compression: 2000 kN (Min)
- B.L. Shear: 420 kN (Min)
- B.L. Tension: 500 kN (Min)
- 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; Twistlocks
* Can be customized according to your needs, type and test class approved on request.
Looking for a large seat twistlock or other shipping container twist lock for sale? Contact us today for a detailed quotation and technical datasheet.
Drawings and Features of Large Seat Twistlock BD-C1
Key Features
Note: Only use 1 type on board of a vessel (Left or right) to avoid confusion if the twistlock is in the locked position or open position
- Left / Right Locking Option: As a premium manual twistlock, it can be locked and unlocked by hand without levers or special tools. This saves time in loading/unloading operations and improves work efficiency.
- Large Flange Seat Design: Enhanced stability and higher load capacity, reducing point pressure on the container corner castings and the transport surface.
- Manual Operation: Simple 90° handle rotation for locking and unlocking.
- Universal Compatibility: Meets ISO standards and fits all standard container corner castings.
- Weldable & Class Approved: Meets ABS, DNV-GL, CCS, and ISO standards
Application
- Container Stacking (Bottom Lock): Primarily used to lock the base container to the ship’s deck, chassis, or ground.
- Intermodal Transportation: Securing containers on rail cars and during road transport.
- Storage Yards: Providing stable and secure locking for long-term container storage.
- Port & Terminal Operations: Used for fixing stacked containers during loading/unloading by cranes, ensuring safety during lifting.
With its high tensile strength, corrosion-resistant finish, and standardized connection design, this part is trusted by global shipping lines, shipyards, port operators, and marine service providers. By choosing OLIPORTS as your supplier, you ensure reliable performance, compliance with ISO & class society standards, and consistent availability for both scheduled maintenance and large-scale fleet projects.
Recommended Accessories
To maximize the performance of the Large Seat Twistlock, it is recommended to use it together with the following container securing accessories:
- Stacking Cones (Bottom Stacking Cone / Single Stacking Cone): Work together with twistlocks for vertical container stacking and alignment, preventing shifting.
- Bridge Fittings: Used for horizontal connection between adjacent containers, complementing twistlocks for stronger stability.
- Lashing Equipment: Includes D Rings, Lashing Bars, and Turnbuckles, which provide additional tightening and securing when used with manual twistlocks.
- Container Deck Bases / Sockets: Installed or welded onto ship decks, allowing the large seat twistlock to lock containers securely to the vessel.
- Midlocks / Semi-automatic Twistlocks: Often used in combination with manual large flange twistlocks for multi-layer container stacking.
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.
