Joy Global

Raiseboring Tools

The rotary drilling method of boring large diameter holes for the mining and construction industries has proven to be very cost effective. Raiseboring has gained worldwide acceptance as the preferred method for constructing ventilation and hoisting shafts, ore passes and hydroelectric penstocks. Tremendous amounts of torque and thrust from the drilling machine are transmitted to the cutting head, each individual member of the drill string playing a vital role in the success of the project. Joy Global has been involved in the design and development of the threaded connections, material specifi cations and manufacturing of raiseboring tools, since the first raiseboring machines were built in the 1960s.

standard strength rod, 10", hard rock, KO, display photo, 2015, raise drill

Joy Drill Rods

  • Compatible with all of the raise drills operating around the world
  • Designed and manufactured with an emphasis on durability, weight reduction, and serviceability
ribbed stabilizer, 12.25" hole size, hard rock, display photo, KO, 2015, raise drill

Joy Ribbed Stabilizers

  • Six-ribbed stabilizers are designed to stabilize and centralize the drill string
  • Support and stabilize the cutting head in the reaming cycle
DI22, thread protectors, pin and box, for raise drill products, hard rock, KO, display photo, 2015

Joy Raiseboring Accessories

  • Includes thread protectors, lifting bails, ring gauges, and makeup/breakout tools
  • Can also engineer and design customized equipment to suit your specific application
hard rock, raise bore, consumable, 2010, KO, display photo, reaming stabilizer with flex and D122 pin

Joy Bit Reamer Stabilizers

  • Designed to center and stabilize the bit during the pilot hole cycle
  • Incorporate multiple carbide-tipped rollers that are able to cut and size the hole to finished dimension
hard rock, raise bore, consumable, 2010, KO, display photo, reaming stabilizer with flex and D122 pin, box end

Joy DI Connections

  • DI 22 series of threaded connections was designed specifically for the raiseboring industry
  • Tapered design of the DI22 threaded connections allows for connections to be self centered