Mining Operations & Strategies

Calculating Mine-site Volumes From Space Satellite imaging provides a safe, fast and cost-effective alternative to ground-based open-pit mining surveys In today’s competitive commodities...

Suppliers Report

Belzona Repairs Barrick Slurry Tank Belzona repaired a slurry tank damaged by corrosion at Barrick Gold Corp.’s Dominican Republic mine, Pueblo Viejo. The tank was used to neutralize acidic sludge to a...
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Mining Equipment Gallery

New Rotary Blasthole Drill Caterpillar announced its new MD6310 rotary blasthole drill enables efficiency and productivity improvements. Cat electronics deliver advanced troubleshooting for...

New Cat Hammers Retain Popular Features


Caterpillar has added three models to the E Series Hammer line—H140Es, H160Es and H180Es—for use on medium and large excavators ranging from its 324E to the 374D L.

The energy classes of the H140Es, H160Es and H18Es are 6,000 ft-lb (8,135 J), 8,500 ft-lb (11,525 J) and 12,000 ft-lb (16,270 J), respectively. The E Series Hammers build on the proven D Series Hammers, which the new hammers replace. E Series Hammers feature a new symmetrical housing design, which allows rotating the housing 180° to compensate for wear. The lower portion incorporates rock edges that add protection to the housing and enable quick positioning of boulders. An optional wear package is available to improve hammer durability in severe applications. Features carried over from the D Series include automatic shut-off, which instantly stops the hammer when the tool breaks through material. The system increases hammer reliability and durability by eliminating high internal stresses created by blank firing. Another feature continued in each E Series Hammer is the external pressure control valve, which reduces service time when an adjustment is necessary. The E Series Hammers are designed to be field serviceable with common hand tools. Sound suppression is standard for environmental protection and operator comfort. The new hammers’ settings are preprogrammed in Cat excavator tool control systems for easy set up. Oil flow and pressure are fully adjustable in the tool control program, and actual hammer working hours can be recorded for routine maintenance purposes.
www.cat.com

From the Editor

Western Australia Seeks Gold Royalty Increase The last few years have been difficult for gold miners and really tough for gold explorers. This holds true for the miners in gold districts near Kalgoorlie and Coolgardie in Western Australia. And, just as they say they are beginning to feel the effects of recently implemented optimization programs and a...
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Exploration Roundup

Osisko Drilling 400,000 m at Windfall Lake Osisko Mining has reported numerous favorable results from an ongoing, 400,000-meter (m) drill program at its Windfall Lake gold project in Urban Township,...

This Month in Coal Mining

Whitehaven Posts Impressive Results Whitehaven Coal, Australia’s leading independent coal company with five operating mines in northwest New South Wales, has reported a net profit after tax of...