Self drilling anchor bars: Tenso.rig injected bars

Self drilling bars

Self-drilling bars

The self-drilling bar is a very versatile tool, which guarantees maximum flexibility and speed of installation.

The self-drilling hollow anchor bar carries out three functions:

Drill rod
Injection channel
Sealed shaft

The self drilling bars are produced using plastic deformation, creating the full ISO 10208 thread on the outer surface of a pipe.

The profile produced has multiple functions:

Acts as a connector, enabling a series of bars to be joined together, using joint sleeves;
Enables the installation of the drilling bit most suited to the ground conditions;
Is used for direct attachment to the drilling machine;
Enables the self drilling bar to be cut to the desired length, whilst maintaining the threaded end;
The corrugated form increases adherence between the steel and the grout or injected resin.

Self-drilling bars

Type of bar	Yield strength	Tensile strength	Section	Weight	Thickness	Nominal diam.

32-210	160 kN	210 kN	330 mm²	2,7 kg/m	4,00 mm	32 mm
32-250	190 kN	250 kN	370 mm²	2,9 kg/m	4,30 mm	32 mm
32-280	220 kN	280 kN	410 mm²	3,2 kg/m	4,85 mm	32 mm
32-320	250 kN	320 kN	470 mm²	3,7 kg/m	5,80 mm	32 mm
32-360	280 kN	360 kN	520 mm²	4,1 kg/m	6,50 mm	32 mm
32-400	330 kN	400 kN	595 mm²	4,6 kg/m	8,30 mm	32 mm

38-420	350 kN	420 kN	670 mm²	5,20 kg/m	6,9 mm	38 mm
38-500	400 kN	500 kN	745 mm²	5,85 kg/m	8,00 mm	38 mm
38-540	450 kN	540 kN	802 mm²	6,30 kg/m	9,10 mm	38 mm
38-600	480 kN	600 kN	900 mm²	7,00 kg/m	10,50 mm	38 mm

51-550	450 kN	550 kN	810 mm²	6,35 kg/m	5,90 mm	51 mm
51-660	540 kN	660 kN	975 mm²	7,65 kg/m	7,30 mm	51 mm
51-800	640 kN	800 kN	1210 mm²	9,45 kg/m	9,50 mm	51 mm
51-930	730 kN	930 kN	1325 mm²	10,10 kg/m	10,40 mm	51 mm

Type of bar	Yield strength	Tensile strength	Section	Weight	Thickness	Nominal diam.
32-210	160 kN	210 kN	330 mm²	2,7 kg/m	4,00 mm	32 mm
32-250	190 kN	250 kN	370 mm²	2,9 kg/m	4,30 mm	32 mm
32-280	220 kN	280 kN	410 mm²	3,2 kg/m	4,85 mm	32 mm
32-320	250 kN	320 kN	470 mm²	3,7 kg/m	5,80 mm	32 mm
32-360	280 kN	360 kN	520 mm²	4,1 kg/m	6,50 mm	32 mm
32-400	330 kN	400 kN	595 mm²	4,6 kg/m	8,30 mm	32 mm

Type of bar	Yield strength	Tensile strength	Section	Weight	Thickness	Nominal diam.
38-500	400 kN	500 kN	745 mm²	5,85 kg/m	8,00 mm	38 mm
38-540	450 kN	540 kN	802 mm²	6,30 kg/m	9,10 mm	38 mm
38-600	480 kN	600 kN	900 mm²	7,00 kg/m	10,50 mm	38 mm
51-550	450 kN	550 kN	810 mm²	6,35 kg/m	5,90 mm	51 mm
51-660	540 kN	660 kN	975 mm²	7,65 kg/m	7,30 mm	51 mm
51-800	640 kN	800 kN	1210 mm²	9,45 kg/m	9,50 mm	51 mm

The hollow bar meets the requirements of EN 14490 on metallic reinforcement. Thread according to ISO 1720 or 10208.

Tolerances:

DRILLING DIAMETER (mm)