Raiseboring Tools
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Raiseboring Tools Product Overview

Raiseboring Tools SINGULAR FOCUS 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 DIRECT SERVICE 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...

Steel The steel used in the production of raiseboring tools is vitally important because raiseboring tools must be able to withstand tremendous loads. Understanding that not all steels of a specific grade are produced to the same quality level, and understanding the catastrophic effects of a drill string failure, Joy Global is committed to providing customer value through high quality products demonstrating durability and strength. Since the manufacture of the first raiseboring machines, Joy Global has been developing and refining the material specifications for steel used in the production...

Drill Rods Both High Strength and Standard Strength drill rods are designed and manufactured with an emphasis on durability, weight reduction, and serviceability. Joy Global drill rods are designed to be compatible with all of the raise drills operating around the world. The threaded connections on the rods are cut to exacting standards and verified using precision gauges prior to leaving the factory. The rods are also designed with features that contribute to long life and serviceability. Each connection is treated in a kemplating process that coats the threads with protection against...

Ribbed Stabilizers Joy six-ribbed stabilizers are designed to stabilize and centralize the drill string. Ribbed stabilizers are critical for the reduction of vibration and to maintain pilot hole accuracy. Joy six-ribbed stabilizers also support and stabilize the cutting head in the reaming cycle. Typically, multiple stabilizers are positioned behind the bit reamer stabilizer during the piloting cycle. When the piloting tools are removed for the reaming cycle, the ribbed stabilizer is connected directly to the reamer. Ribbed stabilizers are offered with spiral or straight ribs, either...

Raiseboring Accessories Thread Protectors – Protect your investment from damage due to handling, transportation, moisture and debris with impact-resistant, high strength, Joy thread protectors made from non-metallic composite material. Joy thread protectors completely cover the threads and shoulders and resist fading and distortion from heat or cold. Lifting Bails - Certified lifting bails complete with shackle and threaded for connection to your drill rods, stabilizers, or reaming head stems. Ring Gauges – Use for accurate sizing of all bottom hole components including bits, stabilizers...

DI Connections The DI22 series of threaded connections was designed and developed specifically for the raiseboring industry. The tapered design of DI22 Contact your Joy Global threaded connections allows for connections to be self-centered prior service representative to engagement. Self-centering reduces the chance of cross threading or other damage during engagement. The coarse thread profile is capable of withstanding the extreme torsional and thrust loads that are applied during reaming. Properly lubricated and torqued, DI22 threaded connections will provide many years of trouble-free...

Joy Global worldwide locations Product designs, specifications and/or data in this document are provided for informational purposes only and are not warranties of any kind. Product designs and/or specifications may be changed at any time without notice. The only warranties that apply to sales of products and services are Joy Global’s standard written warranties, which will be furnished upon request. Joy Global, Joy, P&H and related logos are trademarks of Joy Global Inc. or one of its affiliates. © 2014 Joy Global Inc. or one of its affiliates. All rights reserved. EN-RBT01-1014-V1