Process Solutions

New Crusher Design Combines Low Profile With High Output A new crusher recently unveiled by thyssenkrupp is expected to “revolutionize” material processing in both underground and surface...

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Mining Markets

Zinc Outlook for 2018 The International Lead and Zinc Study Group (ILZSG) held its 62nd Session in Lisbon, Portugal on October 26-27. The session included a meeting of the group’s statistical and...
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Mining Operations & Strategies

Vale Predicts $70M in Savings From New IT System Initiative In a bold initiative that reflects the modern mine-as-a-factory concept, Brazil-based Vale is in the latter stages of deploying a new...

Suppliers Report

Metso Presents Latest Innovations at Perumin 2017 Last month at Perumin in Arequipa, one of the main mining exhibitions in Latin America, Metso introduced its latest innovations for exceeding the...
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Mining Equipment Gallery

Large Excavator Design Extends Service Life by Half SANY launched the SY395H and the SY750H large excavators, designed for mine construction. The two models improve efficiency by 8%-10% over...

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

A Trustworthy Voice As this edition of Engineering & Mining Journal (E&MJ) was going to press, the top lawyers from Google, Facebook and Twitter had testified before a U.S. Senate Intelligence Committee. They were trying to explain how internet trolls had used their social media platforms to spread misinformation in the months leading up to the...
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Exploration Roundup

Ivanhoe Continues to Add Resources at Kamoa-Kakula Project in DRC Ivanhoe Mines has reported positive results from ongoing exploration drilling at the Kabuli West area of its Kamoa-Kakula copper...

This Month in Coal Mining

MEC, Bowie Partner to Create Canyon Consolidated Resources Murray Energy Corp. (MEC), Bowie Resource Partners, Javelin Global Commodities, and Grupo CLISA have agreed to form a strategic partnership called...