Friction collar

Fast, easy and does not require anchors

System used with prefabricated columns or columns in which anchors are not intended to be left within them. Thanks to its design, it can support high loads transferred by the slab system, working in friction with the column.

JOSE - trepantes

Climbing systems are a great challenge: contact us to find the best solution!



Components and accessories

  • Prestressed and positioning bolts.
  • Adjustable head.
  • Adapters to separate the head from the column.


  • High quality prestressed bolts that allow the system to exert pressure on the column.
  • Adjustable head system that allows adapting to the height and releasing the system following execution.
  • Adapters are included to separate the head from the column when there are beams that exceed the width of the column.
  • System positioning bolts that allow safe and quick assembly.

Frequent uses

  • Execution of horizontal elements on circular columns.


Residencial River X building
Residencial River X building

Alsina USA participated in the construction of a new residential building in the town of Fort Lauderdale (Florida).

Kronos Building
Kronos Building

Alsina España Cataluña participated in the construction of a residential complex in the city of Badalona (Barcelona).

El Encanto housing complex
El Encanto housing complex

The project consists of the construction of an apartment building in the first line of the Caribbean Sea in the hotel zone of Cancun.

Jade Park Residential
Jade Park Residential

Alsina’s formwork delegation in Paraguay collaborated in the construction of the Jade Park Residential Complex in the city of Asunción

need help? call us!

+34 935 753 000

Pol. Ind. Pla d’en Coll
Camí de la Font Freda, 1
08110 Montcada i Reixac (Barcelona)


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