Dextra coupling systems

Tools: Coupler, Thread, Connecting Bar

The following couplers of the Fortec and Roltec systems are currently available in the article catalog. The catalog is available in English only.

• Standard splices (type A)
  Easy connection by bar rotation until full thread engagement. Thanks to its parallel thread: no risk of mis-match or cross-threading.
• Position splices (type B) and (type C)
  Even when both bars cannot be turned, the Rolltec system uses the same standard coupler.
  The coupler is fully engaged onto the extended thread of the connecting bar (step 1). You can complete the assembly simply by butting the bars end to end and screwing back the coupler onto the first bar until full engagement (step 2).
  Position type C is similar to type B, plus a lock-nut to maintain the second bar in position.
• Caging splices
  Rolltec Caging Splice is the solution if you want to connect cages that have not been prefabricated together or sets of bars that cannot be brought butt to butt.
  Both bars are threaded with a standard Rolltec thread; the free rotating elements of the Caging Splice restore thread continuity, making the connection.
• Transition splices
  The Rolltec system offers special transition couplers between various rebar sizes. Thanks to these couplers, you do not need to plan transitions in advance.
• Form fixers (only for Rolltec)
  The coupler must be threaded onto one reinforcing bar. The flange of the coupler can be nailed to the wooden formwork for the concrete.
• Austenitic stainless steel couplers and Duplex stainless steel couplers
  For construction where the focus is made on the corrosion resistance of the structure.
• Weldable couplers
  For composite construction where concrete reinforcement bars must be welded to structural steel, Rolltec weldable couplers, specially made from low carbon steel, are available.
• Headed bars small size and large size
  A convenient alternative to hooked bars to provide end anchorages in congested areas. Rolltec standard anchorage heads are circular and have a net bearing area of 4 times or 9 times the cross-section of the bar.
  

Note: It is the user who selects the coupler. The program does not check whether the selected coupler can be used with the existing bending shapes. For example, you will not be informed if you select a coupler of the A type for a bar that cannot be rotated.