SupAnchor® R51 Self Drilling Anchor Bolt Systems

SupAnchor has achieved the security application of 26,000,000 meters self-drilling anchor bar in the world. As the No.1 manufacturer and exporter of self-drilling anchors in Asia, SupAnchor® self drilling anchor system is a bolting solution for difficult ground and rock conditions. The system enables drilling and grouting in one operation, making much saving in jobsite and project time.

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TECHNICAL DATA

 

    Anchor Hollow Bar     R51L/36     R51L/34     R51N/33     R51N/31     R51/950     R51/660
    Outside Diameter (mm)     51     51     51     51     51     51
    Internal Diameter (mm )     35.5     34     33     30.6     30.6     33
    Cross sectional area (mm2)     802     890     968     1070     1070     968
    Ultimate load (kN)     ≧ 550     ≧ 550     ≧ 800     ≧ 800     ≧ 950     ≧ 660
    Load at 0.2% Yield (kN)     ≧ 450     ≧ 450     ≧ 630     ≧ 630     ≧ 760     ≧ 540
    Weight (kg/m)     6.30     7.00     7.60     8.40     8.40     6.30
    Type of steel     40Cr / 20Cr / Q355B 
    Elongation %     Agt ≥ 5%,  A100mm ≥ 12% / 10% / 8% / 6%, A200mm ≥ 10% / 6% ...  
    Thread type     ISO 1720 - R51 / Left or Right
    Length  (m)     (1) x 2, x3, x4,
    Options of Anti-corrosion     Hot-dipped Galvanization  /  Epoxy Coating  /  SupCoat
    *Hot-dipped Galvanization: ISO 1461. 
    *Epoxy Coating: Bending properties up to  standard ISO 1519; Impact properties up to standard ASTMD 2794; 
    Adhesion up to standard ISO 2409:2007.
    *SupCoat:  HDG + EC

 

    Anchor Nut     R51L/36     R51L/34     R51N/33     R51N/31     R51/950     R51/660
    Key Size SW (mm)     75     75     75     75     75     75
    Length (mm)     70     70     70     70     90     70
    Thread type     ISO 1720 - R51 / Left or Right
    Type of steel     40Cr / C45
    Unit Weight (kg)     1.53     1.53     1.53     1.53     1.92     1.50
    Nut type     Hex Nut  / Spherical Nut
    Hardness      HRC 20-30
    Options of Anti-corrosion     Hot-dipped Galvanization  /  Epoxy Coating  /  SupCoat
    *Hot-dipped Galvanization: ISO 1461. 
    *Epoxy Coating: Bending properties up to  standard ISO 1519; Impact properties up to standard ASTMD 2794; 
    Adhesion up to standard ISO 2409:2007.
    *SupCoat:  HDG + EC

 

 

    Anchor Coupling     R51L/36     R51L/34     R51N/33     R51N/31     R51/950     R51/660
    Outside Diameter (mm)     63
    Length (mm )     140     140     200     200     260     180
    Thread type     ISO 1720 - R51 / Left or Right
    Type of steel     40Cr
    Unit Weight (kg)     1.26     1.26     1.90     1.90    2.46     1.68
    Hardness      HRC 20-30
    Options of Anti-corrosion     Hot-dipped Galvanization  /  Epoxy Coating  /  SupCoat
    *Hot-dipped Galvanization: ISO 1461. 

    * Epoxy Coating: Bending properties up to  standard ISO 1519; Impact properties up to standard ASTMD 2794; 

    Adhesion up to standard ISO 2409:2007.

    *SupCoat:  HDG + EC

 

    Anchor Plate     R51L/36     R51L/34     R51N/33     R51N/31     R51/950     R51/660
    Size (mm)     200 x 200      200 x 200      250 x 250     250 x 250     250 x 250     200 x 200 
    Thickness  (mm)     30     30     30     40     40     30
    Hole Diameter (mm)     60
    Unit Weight (kg)     8.80     8.80 14.00     18.50     18.50     8.80
    Options of Anti-corrosion     Hot-dipped Galvanization  /  Epoxy Coating  /  SupCoat
    *Hot-dipped Galvanization: ISO 1461. 

    *Epoxy Coating: Bending properties up to  standard ISO 1519; Impact properties up to standard ASTMD 2794; 

    Adhesion up to standard ISO 2409:2007.

    *SupCoat:  HDG + EC

 

    Centralizer

   R51
   Outside Diameter (mm)     92
    Length (mm)     40
    Hole Diameter (mm)     60
    Type of steel     C45 / GFRP
    Unit Weight (kg)     0.38

 

    Drill Bit Adapter     R51
    Anchor Bar Thread     R51
    Drill Bit Thread     T73 or T76
    Length (mm)     50
    Unit Weight (kg)     0.20

 

 

 

SupAnchor® Self Drilling Hollow Anchors is an unique anchoring system and is today’s answer to the increasing demands of the tunnelling 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.

Features and Advantages:

Fits SupAnchor® standard Boomer, ROC and Mustang rigs. Particularly suitable for difficult ground conditions.

• A high rate of installation since drilling, placing  and grouting can be performed in one single operation.

• Self drilling system eliminates the requirement for a cased borehole.

• Installation with simultaneous drilling and grouting possible.

• Easy installation in all directions, also upwards.

• Suitable for working in limited space, height and in areas of difficult access.

• Simple post grouting system. 

Hot-dipped galvanizing for corrosion protection

 

 

Applications:

 

 

SGS Test Report of R51L
SGS Test Report of R51N

 

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