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Self Drilling Anchors

Minova’s Self Drilling Anchor (SDA) range combines drilling and grouting in one pass to stabilise slopes, tunnels, walls and foundations with high capacity and assured durability.

Product Benefits

One‑pass drill–grout accelerates cycles, reducing delays and labour exposure underground
High nominal loads enable wider patterns, cutting bolt quantities without loss of safety
Robust couplings reduce joint‑related downtime in harsh, wet conditions
TwinCoat™ corrosion defence extends asset life in aggressive water‑bearing strata
Effective in weak or fractured ground, improving stability and safety margins

Sectors

Infrastructure

Applications

Ground Support

Product Details

Minova’s Self Drilling Anchor (SDA) keeps infrastructure projects supported moving when ground is weak, access is tight and programmes are demanding. By combining drilling and grouting in a single pass, the threaded hollow‑bar approach removes temporary casing, shortens installation and reduces interfaces, improving quality and safety in cohesionless or fractured soils. The system adapts to soil and rock nails or micropiles, supporting slope stabilisation, retaining structures, tunnelling, bridge works and urban underpinning. We match bars with couplers, nuts and plates engineered for reliable load transfer within ISO‑aligned manufacturing. For durability, choose galvanised or TwinCoat™ corrosion protection and design permanent works to global standards for service lives up to 50 years and beyond. A full compliment of drill bits, grout swivels, spacers and verification tools streamlines planning, installation and proof testing.

Product Features

Self Drilling Anchor (SDA) for rapid, reliable infrastructure delivery

High‑capacity T‑thread bars for major structures

T51 to T111 cover demanding nails and micropiles; T76 delivers 1,200–1,500kN yield and 1,600–1,900kN tensile

Drill–grout in one pass for weak, unstable ground

Simultaneous drilling and grouting removes the need for casing, speeding installation in cohesionless or fractured soils

Certified components ensure reliable load transfer

Couplers, nuts, plates and drill bits are designed and tested to carry specified system loads and transmit impact energy sa

Corrosion systems for long‑term infrastructure life

Select bright, galvanised or TwinCoat™ (galvanising + epoxy), proven for C5‑M/Im3 exposure categories

Versatile for nails, micropiles, underpinning works

Use as soil / rock nails or as end‑bearing / friction micropiles across diverse infrastructure applications

Supporting Products

Technical Specifications