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Self Drilling Anchor Bits

Struggling with complex ground conditions for anchoring? Inefficient drilling and separate grouting slow projects down. We offer high-performance Self-Drilling Anchor Bits, the core of an all-in-one system. These sacrificial bits facilitate simultaneous drilling, anchoring, and grouting, dramatically accelerating installation, saving time, and ensuring robust ground support in challenging environments.

Description

Self Drilling Anchor Bits

Tackling diverse geological formations with self-drilling anchors can be a challenge, with inadequate drill bits leading to inefficient penetration and project delays. Compromised drilling performance wastes time and resources.

We offer high-performance self-drilling anchor bits, precisely engineered to cut and drill through various rock and soil types efficiently. Our bits ensure optimal penetration, enabling your anchors to reach the designed depth swiftly and reliably, ultimately boosting your project’s productivity and success.

Self Drilling Anchor Bit Features

Self-Drilling Anchor Bits are crucial for the effectiveness of any self-drilling anchor system, as they are the direct interface with the ground during installation. Designed to drill and allow grout passage simultaneously, their features are optimized for efficiency and performance in diverse geological conditions.

Here are some key features:

  • Different types of bits are offered for different conditions: To tackle the wide variety of soil and rock formations encountered in construction, a comprehensive range of bit designs is available. Each type is specifically engineered with unique cutting profiles and flushing holes to optimize drilling speed, accuracy, and wear resistance, ensuring optimal performance in anything from loose sands to hard rock.

  • Primary alloy is applied to manufacture the alloy bit: For maximum durability and cutting efficiency, our alloy bits are manufactured using high-quality primary alloys. This selection ensures superior hardness and abrasion resistance, allowing the bits to withstand the rigorous demands of drilling through abrasive and strong geological formations without premature wear.

Types of Self Drilling Anchor Bits

Hardened Steel Self-Drilling Anchor Bits

Hardened steel bits are the workhorses for softer ground conditions, offering a cost-effective and reliable solution. Their design focuses on efficient penetration and material removal in less abrasive environments.

  • EX: All Steel Cross Bit: This versatile bit is used in loose to medium dense ground formations. Its four-winged, cross-shaped design provides balanced cutting and excellent flushing, making it ideal for sand and gravel.
  • ES: Hardened Button Bit: This bit features hardened steel buttons on its face, designed to crush and break up weak cemented soil, sands, and weak fractured rock. It provides a more aggressive drilling action than a cross bit.
  • EW: Clay Bits: Specifically engineered with a spade-like shape, this bit is used for drilling in soft clay and cohesive soils. Its design prevents the sticky material from clogging the bit, ensuring a smooth drilling process.
  • EC: Hardened Arch Bit: This bit is optimized for loose to dense soil or sand formations. Its arched cutting face provides superior directional stability, ensuring a straight borehole in granular ground.
  • EY: Hardened 3 Cutters Bit: With three cutting wings, this bit offers a balanced and aggressive drilling action. It is effective for drilling in weak cemented soil, sands, and light fractured rock formations.

Tungsten Carbide (TC) Self-Drilling Anchor Bits

Tungsten carbide bits are the premium choice for hard, abrasive, and fractured rock. The TC inserts are incredibly hard and durable, allowing the bits to withstand the high impact and wear of rock drilling.

  • EXX: TC Cross Bit: This bit features a cross-shaped design with TC inserts, making it ideal for medium to strong fractured rock formations. It combines the stability of a cross bit with the cutting power and longevity of carbide.
  • ESS: TC Button Bit: The button bit with TC inserts is designed for the toughest drilling challenges. It provides a powerful crushing action, making it the go-to bit for strong fractured rock formations and solid, abrasive ground.
  • ECC: TC Arch Bit: This bit combines the guiding stability of an arch design with TC inserts. It is used in medium fractured rock formations where both precision and durability are required to ensure a straight borehole in challenging geology.
  • EYY: TC 3 Cutters Bit: Featuring three cutting wings with TC inserts, this bit offers a very aggressive and durable drilling solution. It is used in medium fractured rock formations and mixed ground, providing efficient material breakdown and a smooth drilling process.

Self Drilling Anchor Bit Applications

Self-drilling anchor bits, as depicted in the image, are crucial components in various ground engineering applications, enabling efficient simultaneous drilling and grouting. Their specialized designs allow them to penetrate diverse ground conditions while creating the borehole for the anchor.

Here are their key applications:

  • Pre-supporting: Essential in tunneling and mining, these bits rapidly install temporary or permanent support ahead of excavation. They create immediate stability in unstable ground, enhancing safety and facilitating continuous advance in challenging geological formations.

  • Micropiling for Foundation Underpinning: Utilized to reinforce existing foundations or create new ones in limited access areas. The bits efficiently drill and grout, extending structural support to competent bearing strata, effectively addressing settlement issues and increasing load-bearing capacity.

  • Slope Anchorage: Critical for stabilizing unstable natural or excavated slopes. These bits enable the quick installation of anchors that tie back precarious ground, preventing landslides and erosion, thus securing infrastructure and protecting lives.

  • Retaining Walls: Employed to anchor various types of retaining structures, such as soldier pile walls or secant pile walls. The bits facilitate efficient installation of tie-backs, providing the necessary resistance against lateral earth pressures and ensuring structural stability.

  • Temporary Works: Widely used for short-term support systems in construction, like excavation shoring or temporary bridge foundations. The rapid installation capability of these bits allows for quick establishment and removal of temporary support, optimizing project timelines.

Self Drilling Anchor Bit Parameters

EX Self Drilling Anchor Bits

1717492797776248

  EX

Full steel cross self drilling anchot bit

For loose to medium dense ground formations

1717492797738461ES Self Drilling Anchor Bits     ES

Full steel button self drilling anchor bit

For weak cemented soil / sands and weak fractured rock formations

1717492797170351EW Self Drilling Anchor Bits     EW

Self drilling anchor clay bit

For soft clay and soils

1717492797446374EC Self Drilling Anchor Bits     EC

Full steel arch self drilling anchor bit

For loose to dense soil or sand formations

1717492797764711EY Self Drilling Anchor Bits     EY

Full steel three cutters self drilling anchor bit

For weak cemented soil / sand and weak fractured rock formations

1717492798453652EXX Self Drilling Anchor Bits     EXX

TC (Tungsten Carbide) cross self drilling anchor bit

For medium to strong fractured rock foramtions

1717492798728520ESS Self Drilling Anchor Bits     ESS

TC (Tungsten Carbide) button self drilling anchor bit

For strong fractured rock formations

1717492798419994ECC Self Drilling Anchor Bits     ECC

TC (Tungsten Carbide) arch self drilling anchor bit

For medium fractured rock formatioms

1717492799730191EYY Self Drilling Anchor Bits     EYY

TC (Tungsten Carbide) three cutters self drilling anchor bit

For medium fractured rock faomrations

General guide for anchor bits diameters selection (for reference only):

Thread Bits diameter(mm) Thread Bits diameter(mm)
R25 42mm, 51mm, 76mm T30 42mm, 46mm, 51mm, 76mm, 90mm
R32 45mm, 51mm, 76mm, 90mm, 100mm, 115mm T40 76mm, 90mm, 100mm, 115mm
R38 64mm, 76mm, 90mm, 100mm, 110mm, 115mm, 130mm T52 76mm, 90mm, 110mm, 115mm, 130mm, 150mm
R51 76mm, 90mm, 100mm, 110mm, 115mm, 130mm, 150mm T73 115mm, 130mm, 175mm
T76 170mm, 220mm T103 175mm, 220mm, 280mm
T111 T127 200mm, 220mm

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