Products

Self-Drilling Anchor (SDA) System

Outer diameter

32–111 mm

Breaking load

up to 3650 kN

Applications

► Reinforcement of fractured and unstable zones during mine development
and extraction operations

► Foundation-free anchoring of equipment

► Waterproofing of underground mine workings and excavations

► Injection of polymer resins into cracks and fractures within disturbed
rock masses

► Used as sacrificial drill rods, anchor bars, and grout injection tubes.
The threaded profile allows the rods to be extended with couplers and
used with various drill bits, nuts, and bearing plates.

Component Description

Self-Drilling Anchor (SDA) System

Key Advantages

► Enables drilling of boreholes and subsequent injection of polymer
resins into rock formations of any strength and degree of fracturing

► Provides additional reinforcement of the rock mass through anchoring

► Reduces labor requirements by combining multiple installation processes
into a single operation

Operating Principle

SDA anchors are hollow anchor bars that combine borehole drilling and
subsequent anchoring in a single operation. They are used for rock
stabilization, foundation reinforcement, tunnel support, slope
stabilization, and a wide range of other geotechnical applications.

Packaging

Packaging: Supplied in bundles of up to 30 pieces, depending on the anchor
diameter.

Storage

Store in a dry and enclosed indoor area.

Equipment

Drilling rig (hydraulic or pneumatic) — provides rotation and feed of the
anchor.

Grout injection pump — injects cementitious/polymer material through the
hollow bar.

Auxiliary equipment (couplers, centralizers, adapters) — for extending the
length and ensuring accurate positioning.