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Mining Operations & Strategies

Suppliers Report

For more than 30 years, the Hilliard Corp. has supplied braking systems for draglines, electric shovels, conveyors, mine hoists and mills. Now, the New York, USA-based company is set to unveil new...
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Mining Equipment Gallery

Marcotte Mining has completed development of an ultra-high scissor lift that the company said exceeds standard underground capabilities. Designed to provide a safe work platform for installation of...

Deep-mining Dredges Offer Performance Options

DSC Dredge’s Marlin class dredges are designed for deep-deposit mining, made possible by the use of an underwater pump system with a high-torque cutter drive assembly.

Digging depths range from 35 ft (10 m) to more than 200 ft (61 m). Discharge sizes range from 8 in. (203 mm) to more than 24 in. (610 mm). Marlin Class dredges are available in either a diesel- or electric-powered model to meet the customer’s specific needs. Drive systems include a Cat ACERT diesel engine with inline direct marine-style transmission for dredge pump reduction; or TEFC electric motor, variable-frequency AC dredge pump motor drive and double helical gear reducer for dredge pump reduction. All models feature a PLC operating system, magnetic flow meter, electro-proportional hydraulic circuits, high-capacity service water system, maximizer suction dilution valves and a three-wire mooring system. These performance features offer deep water dredging capabilities combined with a wide array of suction and discharge sizes to maximize operating efficiencies for any application.

From the Editor

This month, E&MJ offers an in-depth report on Newmont Mining Corp. When gold prices started to decline, the company began to optimize operations and sell assets. Lowering operating costs allowed it to invest in operations during the downturn and now they are reaping the rewards.
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This Month in Coal Mining

An official for India’s state-owned producer Coal India Ltd. (CIL) revealed that 66 of its 123 most costly projects are facing some kind of delay as the country eyes a target of 20 billion metric...