Process Solutions

Air-pulse Jigs Bolster Spanish Tungsten Mine Production Plans W Resources (WRES), operator of the La Parrilla tungsten/tin mine in southwestern Spain, has installed two alljig fines jigs from German...

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Mining Markets

State of the Mining Market Q1 2017 Activity in the mining industry reflects the global economy generally and industrial production in particular. After encouraging price increases last year, there was...
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Mining Operations & Strategies

Railway Tunnel Design at Potash Mine Saves Time and Money Canada’s new Bethune mine — formerly known as the Legacy Project — is the first greenfield potash mine built in Saskatchewan in nearly 40...

Suppliers Report

Atlas Copco’s 6thSense Offers a Digital Path to Systems Integration According to Atlas Copco, automation and digitalization are the future of the mining industry, but automation is not just about...
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Mining Equipment Gallery

Autonomous Trucks Up Production 30% Sandvik unveiled the TH551i and TH6631i autonomous hauling trucks. When paired with the company’s AutoMine Trucking software package, the trucks can increase...

New Bit Lines Have Advanced Design Features


Varel International has launched the new Raider series PDC drill bits, along with new bit technology for horizontal directional drilling (HDD) applications.

According to the company, the new Raider bits are purpose-built for drilling to total depth through interbedded soft and hard formations of transition zones. By incorporating design refinements that create a new, more balanced profile with greater stability, the series provides a solution to overcome the ROP and durability challenges associated with these applications. Varel also said its Target HDD technology encompasses a new series of roller cone bits equipped with EdgeGuard shirttail enhancement technology, as well as Full Coverage (FC) cutters for use on hole openers and reamers in HDD operations. The roller bits, available in both open and sealed bearing configurations, are equipped with patented High Energy Tumbled inserts.

The series’ FC cutters are sealed bearing and compensated components with advanced cutting structures for outstanding performance in hole opener and reamer applications. All FC cutters feature Varel’s labyrinth seal ring protection for extended life.
www.varelintl.com

From the Editor

Price Swings and the Digital Age. Last month, we wrote and committed resources to the proposed mining charter in South Africa. In the time between E&MJ being printed, mailed and readers receiving the magazine, sanity prevailed. South Africa reversed course (See Leading Developments, p. 5) and the news story had run its cycle. A former E&MJ editor would...
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Exploration Roundup

Iamgold Continues to Hit High-grade at Monster Lake Iamgold has reported assay results from the final 14 drill holes, totaling a little more than 5,400 meters (m), from a total of 25 diamond drill...

This Month in Coal Mining

Alpha to Transfer Idle Assets, Eliminate Self-bonding in West Virginia Alpha Natural Resources plans to pay Lexington Coal Co. (LCC) to take its idled assets. Included with these properties, which are...