SELF DRILING ANCHOR BOLT

It consists of Self Drilling anchor Nuts, Plates, Coupler, Bit.

SELF DRILLING ANCHOR APPLICATION

The Self Drilling Anchor consists of a self-drilling bolt with a hollow outer part and a threaded bolt and a bit that performs the drilling process. The hollow bolt allows air and water to pass freely during the drilling process, removing the waste material and injection immediately after the drilling process is completed. The injection fluid completely fills the space between the bolt and the rock. Self Drilling Anchor is one of the solutions used for unstable soils (clay, gravel, soft etc.).

FEATURES

The bolt, which has simple and similar working principles on different soils, does not require pre-drilling.

It saves machinery and labor, with less space requirement on the ground to be applied.

It provides optimum strength with its external structure and chemical cement filling. It allows temporary or permanent applications with its corrosion-resistant and non-durable varieties.

USAGE AREAS

It is used as tunnel and foot pile in order to strengthen weak soils, tunnel mirror, tunnel entrance part in tunnels.

It also strengthens tunnel portals, trenches, cut and cover areas, excavation roads, dams, slopes, retaining walls and noise barriers.

SELF DRILING ANCHOR BOLT

R25N R32L R32N R32S R38N R51N
Outer Dia (mm) 25 32 32 32 38 51
Inner Dia (mm) 14 21 18,50 15 19 33
Cross Sectional Area (mm²) 290 356 396 488 717 936
Ultimate Load (kN) 200 260 280 360 500 800
Yield Load (kN) 150 200 230 280 400 630
Weight (Kg/m) 2,30 2,8 3,4 4,1 6 8,4
Steel Grade EN10083-1
Length (m) 1,2,3,4 or 6 meters
Usage Area Tunnels, Dams, Highways etc.
Material It is produced from seamless cold drawn steel pipe.
Secondary Elements Bit, Coupling, Nut, Plate
Quality Standart TSE 150 10208 / APRIL 1999

SDA BOLT BITS

It is the equipment that performs and endures the drilling process. Various and unique structures of the bits are selected for different rock types. Ballistic buttons are choosed to be optimized for different rock hardnesses.

* We can do heat treating based on your demands.

EX BUTTON EXX ESF ESSF
Outer Dia (mm) 51-76-99
Weight (Kg) 0.35 0,45 0.4 0.42 0.47
Toughness (HRC) 50-55
Steel Type EN10083-1
Production Material High Carbon Tempered Steel
Diamond Type Steel  Tungsten-Carbide
Thread Type ISO 10208 R25/R32/R38/R51

COUPLING

It is the element used to attach two bolts to each other.

COUPLING R25 R32L R32N/20 R32S R38N R51N
Outer Dia (mm) 36.5 42 42 42 51 63
Length (mm) 150 145 160 190 220 160
Unit Weight  (Kg) 0.67 0.72 0.8 0.96 1,76 1,9
Purpose of Usage Adapter for SDA Bolts
Material 1010/1050/4140/4340

* We can do heat treating based on your demands.

NUT

The nut is a connection equipment used together with the plate.

NUT R25 R32L R32N/20 R32S R38N R51N
Diameter (mm) 41 46 50 75
Lenght (mm) 41 45 45 65 50 70
Weight (Kg) 0.28 0.35 0.35 0.53 0.48 1,6
Purpose of Usage Plate Stabilizer on SDA Bolts
Material 1010/1050/4140/4340

* We can do heat treating based on your demands.

STEEL PLATE

Plates are Hot rolled steel parts with a width of 10 cm to 20 cm, a thickness of about 1-2 cm generally.

Dimensions (mm) 100 x 100 150 x 150 200 x 200 250 x 250
Thickness (mm) 5-12 8-20 10-20 12-25
Hole Diameter (mm) 27-52,5
Weight (Kg) 0,66-1,58 1,4-3,6 3,2-6,4 9,9-20.6
Material Steel Sheet
Purpose of Usage Preventing the movement of surface

* We can do heat treating based on your demands.