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Ringlock Scaffolding (COBRA)

Ringlock scaffolding (Cobra) system is widely applied all the world

Ringlock scaffolding (Cobra) was first made in Germany. After carefully testing the safety level, European countries and the US have gradually applied this type of scaffolding in a wide range. To keep up with the trend, the construction industry in Vietnam has already used Ringlock scaffolding (Cobra).

VIVABLAST’s Ringlock scaffolding system (Cobra): International standards, Credibility and Quality

Cobra ringlock scaffolding

VIVABLAST has upgraded and applied new industrial scaffolding technology. It is mainly used in the shutdown-for-maintenance phase in the power industry, thanks to the following outstanding advantages:

  • Fast Installation
  • Safe construction
  • Manpower reduction/lessening

This new technique can apply to:

  • Turbines cleansing
  • Installation of insulation (insulation)
  • Outside coating for the factory/factory structure
  • Inside coating for the pipeline/boiler

In addition, VIVABLAST scaffolding technicians are well-trained and internationally certified.

Our scaffolding specialists efficiently implemented for the very first time this versatile scaffolding method during the short yearly outage of a Power Plant in 2018. By means of using this technique to support the external wall coating works, VIVABLAST accomplished the task ahead of schedule and exceeded the client’s expectations.

VIVABLAST guarantees strict compliance with the global quality and safety standards, as well as the specifications of the customer.

Basic components of Ringlock Scaffolding (Cobra) and some installation notes

Basic components of Ringlock scaffolding (Cobra):

  • Standard Post
  • Rosette
  • Ledger
  • Ledger Head
  • Diagonal Brace
  • Console Brackets

Rope Access 2

Outstanding advantages of Ringlock Scaffolding (Cobra) in practical applications

Ringlock scaffolding (Cobra) with vertical struts can withstand a heavier load than other conventional scaffolds due to:

  • The linking points/ junctures in the ring lock scaffolding system are solid and incredibly stable
  • The beam struts have a simple and installable structure, on account of a significant reduction in supporting trees/bars/posts between the floor cells.

In comparison to Ringlock scaffolding (Cobra), H-frame scaffolding is:

  • Easy to move, install, and dismantle
  • Cost-saving


In comparison to Ringlock scaffolding (Cobra), 4-hole Ring disc scaffolding is:

  • Cost-effective
  • Easily installed, transported, and dismantled, shortening the implementation time
  • Shipping and warehousing costs are 40% – 50% lower
  • Longer amortization
  • Material-saving

Some essential steps in the process of installing Ringlock scaffolding (Cobra):

  1. Determine the font size and adjust the scaffolding height properly
  2. Install Ringlock supporting posts and crossbars between supporting post and consol supporting post
  3. Install the U jack and adjust a suitable height for the copha support system placement.

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