Cargo securing methods

Cargo securing methods

Blocking

Blocking means that the cargo is stowed against fixed blocking structures and fixtures on the CTU. Clumps, wedges, dunnage, dunnage bags and other devices which are supported directly or indirectly by fixed blocking structures are also blocking.

Blocking is first of all a method to prevent the cargo from sliding, but if the blocking reaches up to or above the cargo’s center of gravity it also prevents tipping.

Blocking should be used as far as possible.

Blocking in combination with top-over lashing
Blocking using dunnage bags and by putting cargo direct to head and sideboards.

Top-over lashing

Top-over lashings can be used to prevent sliding and tipping in all directions. It is a method using pre-tension applied to the Cordlash system by either a Cordlash hand or pneumatic tensioner and friction between the cargo and the CTU floor.

Below you will find the conditions under which top-over lashings may be used:

Single top-over lashing using 2 buckle-hooks: When using the tables for topover lashing the angle between the lashing and the platform bed is of great importance. The tables are valid for an angle between 75°- 90°. If the angle is between 30°- 75°, either twice the number of lashings are needed or half of the values in the tables. If the angle is smaller than 30° another cargo securing method should be used!

If a double top-over lashing is used, values in the top-over tables may be increased by a factor of 2: The pre-tension values of Cordlash hand and pneumatic tooling is found in the table in section 13. The cargo weights that can be secured using Cordlash tensioners can be found in section 15 per Cordlash cargo securing system. The values are proportional to the tensioners system pre-tension.

Single top-over lashing using 2 buckle-hooks
Double top-over lashing using one or two buckles.

Loop lashing

Loop lashings can be used to prevent sliding and tipping sideways. Sliding is prevented by the MSL (Maximum Securing Load) of the Cordlash system. Tipping is however prevented by the system pre-tension applied by either a Cordlash hand or pneumatic tensioner. The conditions under which loop lashing may be used are found below:

A pair of loop lashings prevents the cargo from sliding and tipping sideways. Minimum one pair of loop lashings per section should be used.
When long cargo units are secured with loop lashings at least two pairs should be used to prevent the cargo from twisting.

Straight/cross lashing

Straight or cross lashings are used to prevent sliding and tipping in all directions by using the MSL (Maximum Securing Load) of the Cordlash system. The conditions under which a straight or cross lashing may be used are found below.

The tables are valid for an angle of 30 – 60° between the lashing and the platform bed. Sideways/lengthways the lashing angle should also be between 30 – 60°. If the cargo unit is blocked forward and backward, and the lashings are placed with an angle of 90° towards the longitudinal axle the cargo weight in the tables may be doubled.

The allowable areas for fixing the lashings on the cargo unit is bounded by straight lines (one for each side), drawn through the center of gravity at an angle of 45°. When the lashings are fixed above the center of gravity, the unit may also have to be blocked at the bottom to prevent sliding.

If one piece of lashing is used between 2 buckle-hooks only 50% of the values in the tables may be used.

Spring lashing

Spring lashings can be used to prevent sliding and tipping in one direction per lashing either forward, backward or sideward, by using the MSL (Maximum Securing Load) of the Cordlash system. The conditions under which a spring lashing may be used are found below:

Alternative A is not fully effective for avoiding tipping.

Alternative B – the horizontal lashing must be a double looped Cordlash system around cargo

Alternative C has two parts attached to four lashing points and secures twice the values in the tables.

When using a spring lashing to prevent tipping, only the weight of the last section needs to be taken to calculate the number of lashings, not the whole cargo weight!

The angle between the lashing and the platform bed should be maximum 45°. There are a number of ways to apply a spring lashing. If the spring lashing doesn’t act at the top of the cargo the weights in the tables for cargo weights prevented from tipping is decreased.

Note: if one piece of lashing is used between 2 buckle-hooks only 50% of the values in the tables may be used.

Table of Cordlash system MSL values
Note: if one piece of lashing is used between 2 buckle-hooks only 50% of the values in the tables may be used.
Table of Cordlash system pre-tension values
Note: If Cordlash is used as a double top-over system as shown in the symbols below, the values in the tables in section 15 may be doubled.

Applications
Containerization
Flat Rack Securing
Bundling and Palletizing
Ship Securing

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Ship Securing

Ship Securing Solutions

Cordstrap’s heavy-duty polyester lashings facilitate dynamic cargo securing solutions that will not damage cargo during the voyage and are easily applied in confined spaces such as a ship’s hull.

Cordstrap’s Ship Securing Solutions are:

  • Easy, fast and safe to apply
  • Highly shock absorbent
  • Protective
  • Light weight
  • Portable
  • Re-tensionable
  • Certified and approved by organizations including Germanischer Lloyd and IMO

Applications
Bundling and Palletizing
Cargo securing methods
Flat Rack Securing
Containerization

Flat Rack Securing

Flat Rack Solution

Valuable cargo can be exposed to extreme external influences on flat racks. Cordstrap’s dynamic cargo securing solutions protect against these and ensure cargo arrives at its destination without damage.

Cordstrap’s Flat Rack Securing Solutions are:

  • Easy, fast and safe to apply
  • Highly shock-absorbent
  • Tension retentive
  • Certified and approved by Germanischer Lloyd
  • Inclusive of onsite staff training

Applications
Bundling and Palletizing
Cargo securing methods
Ship Securing
Containerization

Bundling and Palletizing

Palletizing, Unitizing and Bundling

Cordstrap’s palletizing, unitizing and bundling solutions have a high level of retained tension that ensures cargo keep their original form; making them suitable for securing any type, size or weight of product. These solutions allow products to be picked up and also stacked. This combination of solutions can transform cargo, even if of irregular shape, into transportable units that can be shipped worldwide without damage.

Protecting cargo across all modalities

Whether shipping on flat rack, ship or rail, Cordstrap’s polyester composite Strapping and Buckle solutions provide a high quality, strong solution to securing products of all shapes and sizes, however heavy, fragile or expensive they may be.

Tailored solutions for our customers

Our cargo protection experts have helped customers with their skill and technical knowledge to engineer out risk and ensure the safest, most effective, and compliant solution when transporting bundled, unitized and pallatized cargo.

Steel and Metal

Cordstrap solution:
CC50 Composite Strapping
CB5 Buckle
CT20 Manual Strapping Tensioner

Automotive

Cordstrap solution:
CC50 Composite Strapping
CB5 Buckle
CT20 Manual Strapping Tensioner

Construction

Cordstrap solution:
CC50 Composite Strapping
CB5 Buckle
CT20 Manual Strapping Tensioner

Machinery and Equipment

Cordstrap solution:
CC50 Composite Strapping
CB5 Buckle
CT20 Manual Strapping Tensioner

Benefits of our Pallatizing, Unitizing and Bundling Securing Solutions

Cordstrap’s strapping and buckle solutions provide a high quality, strong solution to securing products of all shapes and sizes, however heavy, fragile or expensive they may be.

  • Easy, fast and safe to apply
  • Light weight
  • Re-tensionable
  • Certified and approved by Germanischer Lloyd
  • Inclusive of onsite staff training

Applications
Containerization
Flat Rack Securing
Cargo securing methods
Ship Securing

Containerization

Containerization Solutions

Cordstrap make containerization as easy, fast and cost effective as possible.
The composite lashing solutions and dunnage bags that Cordstrap have developed, are specifically designed to prevent the movement of cargo in containers.

Cordstrap’s Containerization Solutions are:

  • Time efficient
  • Protective
  • Light weight
  • Portable
  • Certified and approved by organizations including Germanischer Lloyd and AAR
  • Inclusive of onsite staff training

Compliant cargo securing solutions

Every transport method and region has its own rules and regulations. When shipping a container from its point of origin to its destination, it will fall under different rules and regulations while in transit. For containerized goods, Cordstrap container lashing solutions comply with the CTU-Code, IMDG and AAR guidelines, which are key to ensuring safe transport.

A team of Cordstrap experts is ready to help packers and shippers with all necessary knowledge and skills to safely secure cargo in a container, ensuring compliance with all rules and regulations – locally and globally.

Applications
Ship Securing
Flat Rack Securing
Cargo securing methods
Bundling and Palletizing

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