SupAnchor® Self Drilling Hollow Anchor is a unique anchoring system and is today's answer to the increasing demands of the tunneling industry and ground engineering for safer and faster production. The system provides advantages for all areas of its applications, where boreholes would require the time consuming drilling with casing systems in unconsolidated or cohesive soil.
SupAnchor has achieved the security application of 39,000,000 meters self-drilling anchor bar in the world.
The Self-Drilling Anchor System enables drilling and grouting in one operation.The loadbearing member is a ribbed hollow steel bar that serves as a sacrificial drilling rod, an injection tube and a reinforcing bar (the 3-in-1 principle).
R thread is designed and produced according to ISO 10208 and ISO 1720 standards, and can be quickly connected and installed in the field.
SupAnchor is the No.1 manufacturer and exporter of self-drilling anchors in Asia.
T thread is designed and produced according to T International Standard, and can be quickly connected and installed in the field. The hollow bar incorporates a left-hand or right-hand thread for standard rotary percussive drilling.
The relative rib area fR serves as a parameter for the quality of the bond and lies close to the optimum value of fR = 0.21 - fR = 0.33.
In addition to the good bond, the rib surfaces at an angle of 45° reduce the splitting forces. The crack widths at maximum load lie below the 0.1 mm.
SupAnchor UTS Self-Drilling Anchor Bar is a type of high ultimate and yield strength than ordinary R and T thread bars.With lower overall costs and small diameter, it achieves the same strength quality. The system includes a full range of drill bits, adaptor sleeves, couplers, nuts and bearing plates.
Double yield strength helps #1.4462 Stainless Steel Self-Drilling Hollow Bar to be designed with lighter unit weight and lower cost.
100+ year service life. Extremely high anti corrosion due to unique quality of high Ni & Cr and low carbon content (EN 10088/1-2005) Cr:21-23 / Ni:4.5-6.5 / C:﹤= 0.03 (%).
High ductility makes all #1.4462 stainless steel anchor hollow bars achieve Elongation Agt >= 5% (DIN EN 10080 / DIN 488).
#1.4462, #304, #316
Grade 75 Drilling Hollow Bar is designed and produced according to ASTM A615, which could replace solid threaded bar in some geological conditions.
All T continuous thread design providing relatively higher rib area, this provides for superior bond performance in concrete.
All specifications and sizes of the BAR are the same as the T thread and R thread of SDA products on the market, which are interconnected and easy to use.
TROPE Drilling Hollow bar is SupAnchor’s first and patented TR thread in the world，the loadbearing member is a ribbed hollow steel bar that serves as a sacrificial drilling rod, an injection tube and a reinforcing bar (the 3-in-1 principle).
TR Self-Drilling Hollow Bar is designed and produced according to ASTM A615.
45˚ angle T thread design makes the effective area of thread larger and achieves the better bond to concrete and makes the crack widths at maximum load lie below 0.1 mm, which could be connected perfectly to ROPE thread , like R32, R38 and R51 (to ISO 10208 and ISO 1720) at job site.