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srons engineers india manufacturers exporters of rock bolts self drilling anchor bolts systems
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Self Drilling Anchor Bolt Systems

The Self-Drilling Hollow Bar Anchor System is comprised of a hollow threaded bar with an attached drill bit that can perform drilling, anchoring and grouting in a single operation. The hollow bar allows air and water to freely pass through the bar during drilling to remove debris and then allow grout to be injected immediately after drilling is completed. Grout fills the hollow bar and completely covers the entire bolt. Couplers can be used to join hollow bars and extend the bolt length while nuts and plates are used to provide the required tension.
 
Srons Engineers offers Self Drilling Achors in variants of R25, R32, R38, R51 and T76 and their accessories including the Anchor Nut, Anchor Plate, Anchor Coupler and Drilling bits depending on the geological condition of the project site (Type EX, EXX, ES, ESS, EY, EYY).

Srons Engineers are the largest manufacturers, suppliers and exporters of all types of Self Drilling Anchor Bolt System in India.

Self Drilling Anchor Systems / Self Drilling Anchor Hollow Bolts Systems

Self Drilling Anchor Bolt Systems manufacturers exporters in india punjab ludhiana View

Self-drilling anchor (SDA) combines drilling, insertion and grouting into one easy operation. It reduces project lead time and installation difficulty. Srons Engineers utilizes low carbon steel in all of its anchor production. Low carbon content in steel increases its ductility, reduces its brittleness, and resists corrosion cracking and carbon embrittlement. This choice of material significantly reduces occurrences where rockbolt may snap or buckle during onsite installation.

Anchor Rods / Anchor Bars / Hollow Threaded Bars

Anchor Rods / Anchor Bars / Hollow Threaded Bars manufacturers exporters in india punjab ludhiana View

Self drilling anchor bars are a perfect solution to small diameter drilling needs. They come in 3 meter segments that can easily be expanded with the use of couplers. The entire bar is threaded uniformly meaning it can be cut to size to fit any particular application. Various drill bits are configured to fit on the thread allowing for a variety of different applications.

  Unit R 25N R 32L R 32N R 32S R 38N R 51L R 51 N T 76N T 76S
Outer Diameter mm 25.00 32.00 32.00 32.00 38.00 51.00 51.00 76.00 76.00
Inner Diameter mm 14.00 22 21 17 21.00 38.00 33.00 51.00 47.00
Ultimate Load kN 200 260 280 360 500 550 800 1600 1900
Yield Load kN 150 200 230 400 400 450 630 1200 1500

Anchor Nuts

Anchor Nuts manufacturers exporters in india punjab ludhiana View

Nuts are used at the end of the anchor bar to secure the top plate in place. Pick the size according to the size of bar used for the application.

  Unit R 25N R 32L R 32N R 32S R 38N R 51L R 51 N T 76N T 76S
Key Size mm 41 46 46 46 50 75 75 100 100
Length mm 35 45 45 65 60 70 70 80 80

Anchor Plates / Anchor rod tray

Anchor Plates / Anchor rod tray manufacturers exporters in india punjab ludhiana View

Anchor Rod Tray is one part od seam pipe anchor rod. Its materials used, solder ring, rolling head production rod, making retaining ring circling cutting, shearing, punching, punching produce trays, rod, retaining ring.

  Unit R 25N R 32L R 32N R 32S R 38N R 51L R 51 N T 76N T 76S
Dimension mm 150x150 200x200 200x200 200x200 200x200 200x200 250x250 250x250 250x250
Thickness mm 8 10 10 12 12 30 40 40 40
Hole Diameter mm 30 35 35 35 41 60 60 80 80

Anchor Coupler / Anchor Coupling

Anchor Coupler / Anchor Coupling manufacturers exporters in india punjab ludhiana View

Couplers are used to join various segments of anchor bar together. Simply match the coupler size to the bar diameter and multiple bars can be easily joined together. The coupler thread has a break in the center making it easy to ensure that both the front & back end bar meet in the middle of the coupler.

  Unit R 25N R 32L R 32N R 32S R 38N R 51L R 51 N T 76N T 76S
Outer Diameter mm 36 42 42 42 52 63 63 95 95
Length mm 150 145 160 190 220 140 200 200 200

Drill Bit Adaptor

Drill Bit Adaptor manufacturers exporters in india punjab ludhiana View

Adapters are used with anchor bars to allow a larger drill bit to be used with a smaller bar. The anchor bar threads into the inside of the adapter and the drill bit on the outside. This can be a cost saving solution for applications that do not require the strength of larger diameter bars but benefit from a thicker cross section of grout.

DRILL BIT EX / CROSS CUT DRILL BIT EX

DRILL BIT EX / CROSS CUT DRILL BIT EX manufacturers exporters in india punjab ludhiana View

Hardened Steel Cross-Cut Drill Bit are Designed as a cost effective solution for loose to medium dense ground conditions.

DRILL BIT EXX / CROSS CUT DRILL BIT EXX

DRILL BIT EX / CROSS CUT DRILL BIT EXX manufacturers exporters in india punjab ludhiana View

Tungsten Carbide Cross Cut Drill Bit are Designed with the same shape as a cast hardened cross cut bit but reinforced with tungsten carbide, this drill bit is able to handle soft to medium rock formations.

DRILL BIT ESSF / CROSS CUT DRILL BIT ESSF

DRILL BIT ESSF / CROSS CUT DRILL BIT ESSF manufacturers exporters in india punjab ludhiana View

Tungsten Carbide Button Drill Bit are Designed with tungsten carbide "buttons" to add extra strength to the cast hardened button bit, this drill bit is excellent at handling medium rock formations.

DRILL BIT ESF / CROSS CUT DRILL BIT ESF

DRILL BIT ESF / CROSS CUT DRILL BIT ESF manufacturers exporters in india punjab ludhiana View

Hardened Steel Button Drill Bit are Designed with tungsten carbide. The "button" design of this drill bit makes it excellent for unconsolidated rock with boulders.


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Products Range

  • ROCK BOLTS
  • SELF DRILLING ANCHOR SYSTEMS
  • FOREPOLING DRILLING SYSTEM
  • DOUBLE CORROSION PROTECTION ANCHORS
  • STEEL DOWEL BARS
  • THREADED RODS / THREAD BARS
  • TIE RODS / COIL RODS / SDA BARS / HOLLOW BARS
  • HOT ROLLED THREADED RODS / TIE RODS
  • PLAIN WASHERS / FLAT WASHERS
  • SPRING WASHERS
  • HEX BOLTS
  • HEX NUTS
  • STEEL FIBER / CONCRETE STEEL FIBER

Contact Info.

Address:

SRONS ENGINEERS
#B29-536/35, Singla Colony,
Jaspal Bangar Road, Indl. Area-C,
Dhandari Kalan, Ludhiana
Punjab (INDIA)

Email:

rajinder@sronsrockbolts.com sronsrockbolt@gmail.com

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+91 7508712122, 8872011910, 9888331345

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