THE DRILLER'S CHOICE

Forepoling Systems

Forepoling ring-bit systems (also known as tube umbrella systems) are designed to be drilled with a top hammer or DTH in an umbrella shape, as secondary support in a tunnel roof, allowing weak ground or overburden to be strengthened by grouting through the casing and grouting valves into the ground.

Primary applications:
  • Forepoling or tube umbrella
  • Anchoring
  • Micro piling
  • Fibre glass face stabilisation
  • PVC foundations

Specification

System product code Casing OD Max wall thickness Ring-bit ID Ring-bit OD Pilot-bit OD
F76-8-40 76.1mm (3”) 8mm (0.315″) 40mm (1.575″) 82mm (3.228″) 58mm (2.283″)
F89-8-52 88.9mm (3.5”) 8mm (0.315″) 52mm (2.047″) 94.5mm (3.720″) 70.9mm (2.791″)
F102-8-62 101.6mm (4”) 8mm (0.315″) 62mm (2.441″) 106.6mm (4.197″) 83mm (3.268″)
F114-10-70 114.3mm (4.5”) 10mm (0.394″) 70mm (2.756″) 120mm (4.724″) 92mm (3.622″)
F140-10-94 139.7mm (5.5”) 10mm (0.394″) 94mm (3.701″) 148mm (5.827″) 116.7mm (4.594″)
F159-10-118* 158.8mm (6.25”) 10mm (0.394″) 118mm (4.646″) 179mm (7.047″) 133mm (5.236″)
F168-12.7-125* 168.3mm (6.626”) 12.7mm (0.5″) 125mm (4.921″) 189mm (7.441″) 140mm (5.512″)
F219-12.7-171* 219.1mm (8.626”) 12.7mm (0.5″) 171mm (6.732″) 243mm (9.567″) 188mm (7.402″)

OVERVIEW

Mincon Group plc is a global engineering business specialising in the design, development, manufacture, and service of rock drilling tools for a variety of applications.

Originally founded in 1977 in Shannon, Ireland, it now has a worldwide presence, with customer service centres and factories across the Americas; Europe and Middle East; Africa, and Asia Pacific. 

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Mincon Group plc- The Driller's Choice ™

2022

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