Twist Lock Bases - Container Ship Specific

Twist lock bases are welded container-securing foundations installed on vessel decks, hatch covers or container stools. They receive compatible twist locks and transfer container stacking, racking and uplift loads into the ship’s structure.

ProShipWorks provides end-to-end support to source and supply Twist Lock Bases for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

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Product Information

Product Name Twist Lock Bases
Product Category Container Ship Specific
Product Reference 462
Brands / Manufacturers MacGregor, SEC Bremen, German Lashing Robert Böck
Unit of Measure Piece

Key Features

Key Feature
1.   Weldable high-strength steel construction
2.   Available in flush, raised and dovetail configurations
3.   Compatible with designated marine container twist locks
4.   Transfers compression, shear and uplift loads
5.   Suitable for protective marine coating systems

Applications of Twist Lock Bases

Application
1.  Securing ISO containers on container ship decks
2.  Container attachment on hatch covers and container stools
3.  Securing deck containers on multipurpose and offshore vessels

Models & Manufacturers

Model Manufacturer
Dovetail foundation German Lashing Robert Böck GmbH
Flush ISO foundation SEC Bremen GmbH
Raised ISO foundation MacGregor

Technical Specifications

Model Specification Value Unit
Dovetail foundation Retention interface Sliding dovetail twist lock —
Flush ISO foundation Installation profile Flush-mounted in deck or supporting structure —
Raised ISO foundation Installation profile Raised above supporting structure —
All types Container interface ISO Series 1 freight-container corner fitting —

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification The container interface generally follows ISO 1161 corner fittings and ISO 3874 container handling and securing practices. Materials, welding and inspection must comply with approved vessel drawings, qualified welding procedures and applicable flag-state and classification rules.
Class Approval Manufacturer and model dependent. Foundations and their supporting structure may be approved by DNV, ABS, Lloyd's Register, Bureau Veritas or ClassNK as part of the vessel’s class-approved container securing and lashing arrangement.

Installation, Maintenance & Safety Information

Installation Notes Install only at positions shown on the approved container securing plan. Verify orientation and twist-lock compatibility, prepare supporting steel correctly, and weld using an approved WPS. Inspect welds and restore the specified marine coating system.
Maintenance Tips Regularly inspect for corrosion, deformation, cracks, worn locking surfaces and damaged welds. Keep sockets free from paint buildup, debris and standing water. Repair or replace damaged foundations only under approved procedures.
Safety Notes Do not exceed the approved container stack or lashing loads. Use only compatible twist locks, isolate the work area during welding, and inspect adjacent structure for heat or fire hazards. Cracked, distorted or severely corroded bases must not be used.

Request a Quote for Twist Lock Bases

Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.

  • Vessel name and IMO number
  • ETA / vessel schedule
  • Berth or vessel location
  • Required quantity
  • Preferred delivery window
  • Shipping agent contact details

Other Container Ship Specific Products

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