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SBT COUPLER

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SBT-THREADED COUPLER


 

Mechanical Rebar Splicing System Couplers Save Valuable Time and Money

 

MATHOD STATEMENT FOR SBT PARALLEL THREADED COUPLERS

 

SBT couplers is a parallel threaded system for reinforcing bars dia 16 mm. to 40 mm diameter.They produce full strength joint in the rebar connection. The ends of the reinforcing bar to be jointed are cut square and then enlarged by cold forging process to increase their core diameters to ensure that the joint is stronger than rebar. The couplers are usually supplied attached to the reinforcing bars.

 

REBAR SPLICING PROCESS WITH SBT COUPLERS

 

The end of the reinforcing bars to be jointed is sawn cut The sawn cut ends of the reinforcing bar is then enlarged by cold forging process to increase its core diameter. Standard metric thread is then cut onto the enlarged end. Finally splice the rebar by using SBT parallel threaded couplers

 

TYPE A (WHEN THE CONNECTING REBAR IS ROTATABLE)

 

When the connecting rebar can be rotated, then end of the bars are threaded for half
the length of the coupler.
After threading, rotate the connecting rebar to the initially screwed coupler to fully engage the coupler.

 

TYPE B (WHEN THE BOTH BARS ARE NOT ROTATTABLE)

 

Even when both bars are not rotatable, then starter bar is threaded for the full coupler length to screw coupler onto the extended threads. Then complete assembly by butting the bars end to end and screw coupler onto the connecting rebar.

 

Product: -

 

SBT Couplers are a parallel threaded mechanical splicing system for reinforcing bars diameter 16 to 40 mm and are designed to provide full tensile strength. They are manufactured in compliance with BS 8110, ACI 318, DIN 1045, UBC 1997 and other international standards.

 

Technical details of SBT rebar couplers:--

 

1.SBT Threaded coupler:--

Splicing process
 

Cutting

The end of the reinforcing bar is sawn cut.

 

Cold Forging

The sawn cut end of the reinforcing bar is enlarged by cold forging process, thus increase its core diameter.

 

Threading

Standard metric threads are then cut onto the enlarged end and cover by plastic caps to protect the thread of rebar.

 

Splicing

Finally splice the rebar by using SBT Threaded couplers.

 
Type A :-- Rotatable Rebar Splice
 

Used where the connecting re-bar can be rotated, then end of the bars are threaded for half the length of the coupler.


Threaded re-bars and Coupler



Turn re-bars into the coupler to connect

 
Type B :-- Non-Rotatable Rebar Splice
 

Used where both re-bars are not rotatable, then starter bar is threaded for the full coupler length to screw coupler onto the extended threads.


Threaded re-bars and Coupler



Turn the coupler onto the short threaded re-bar

 
Type C :-- Non-Rotatable Rebar Splice with Lock-Nut
 

Used where both re-bars are not rotatable, then starter bar is threaded for the full coupler + lock nut length to screw coupler and lock nut onto the extended threads.


Threaded re-bars,Coupler and lock-nut



Turn the coupler and lock-nut onto the short threaded re-bar

 
Type D :-- Different Diameter Splice
 

Used to connect re-bars of different diameters by using reducing coupler.


Threaded re-bars of different diameters and coupler



Turn re-bars into the coupler to connect