Dextra Group

The only splicing system to guarantee an automatic and systematic performance testing of every joint manufactured on site.

Griptec is a full performance extrusion mechanical splice designed for the connection of concrete reinforcement bars of diameter 12 to 56 mm. Griptec system and the Griptec machine are patented worldwide.


GRIPTEC Extrusion Parallel Thread Mechanical Rebar Splicing System
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GRIPTEC EXTRUSION MACHINE

	Sleeves are automatically axially extrusion at the end of rebars from 12mm to 56mm.There is no reduction of the nominal cross section area of the parent bar.
	Sleeves -male or female- are connected by mean of a high performance threaded stud, thus eliminating the risks of incipient failure or cracks on the rebar.
	The ultimate capacity of the joint is higher than the rebar (bar-break). The axial extrusion is performed on a mobile machine with a systematic and non destructive tensile test. This guarantees the performance of every joint delivered on site.

Griptec makes your design safer Each and every connection is proof-tested by pull test during the extrusion cycle. No reduction of the nominal cross section area of the bar. Standard parallel thread are used, thus avoiding torque wrenching. Visual-only inspection of joints is sufficient. No cross threading of parallel threads is possible. (Contrary to tapered threads) Good fatigue performance thanks to rolled threads. Sleeves are manufactured under strict ISO 9001 quality plan. All sleeves are individually marked allowing full traceability of material origin and manufacturing batch. Compact design with small outer diameter.
Griptec is easy to produce High productivity : 30 to 45 seconds per bar end. One man operation, fully computerized process. Low operational cost. Very quick reconfiguration when changing from one bar size to another. Pre-programmed setting of extrusion equipment and proof-testing parameters for each bar size. Fits any reasonable shear cut. No dirty lubricant and machining chips. Self-contained equipment.
No adjustment of tools required. “Plug and Play”. No adjustment at start-up, when changing diameters, and male to female.
Extrusion done in one single operation, with limited handling of the bars. No bar end preparation.No need saw cut. No need to schedule extra length of bar. No threading and no forging of the bar.

AFCAB	(349 Kb : pdf)	Caltrans	(471 Kb : pdf)
ICC-ES	(141 Kb : pdf)	ITB	(2.59 Kb : pdf)
Kiwa	(598 Kb : pdf)	OIBT	(86.9 Kb: pdf)
DIBT	(1.87 Mb : pdf)	ISO9001	(334 Kb : pdf)
UK Cares	(243 Kb : pdf)