Ask the Experts." />

Drilling Feat is More Feet

Published Tuesday, January 01, 2002

For most quarry equipment, the value of technological progress is measured in tons — the number of additional tph new machinery can load, haul, crush or classify. The criterion for judging the performance of new drilling equipment, however, is feet — additional feet drilled per shift, the drill's penetration rate in typical or tough conditions, and the number of feet drilled during the life of a drill bit. As the industry demands higher drilling performance, manufacturers continue to develop crawler and truck-mounted rigs with increased compressor power, better mobility and improved ergonomic features. In addition to this, they ...

To continue reading this article, please register or login – it’s quick and free…

Member Login

Forgot password? Need Help?

Enter your email address below, and we'll email your password.

Are cookies enabled in your browser?

This site uses cookies and session data to keep track of your name and preferences while you're logged in. You cannot login without enabling cookies.

One Step Registration

Fill out the form below for instant access to the page you’ve requested.

Website members also receive access to our entire archive and may apply for a complimentary subscription to our print magazine.
All fields are required Personal Info
  Required Must be a valid email
  Required Passwords must match
  Required
  Required
  Required
  Required
  Required
  Required
  Required

Rock Products Magazine

Submit the form for instant access to the page you've requested.

Reader Comments

Interactive Products

Ask the Experts

Featured Links

Resources