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Centralized pneumatic control for multiple hoists

Material handling specialist J.D. Neuhaus recently supplied a handling system comprising four of its air-operated monorail hoists. It featured a centralized pneumatic system providing common sensitive controls for lift and traverse movements of the hoists, either individual or paired, or with all four hoist units operating simultaneously.

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Tires rank as key component of CSA inspections

Tires have always been a big piece of the puzzle in construction fleets, ranking among the biggest non-labor expense items business owners grapple with daily.

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fleetHQ augments CSA compliance

Wingfoot and participating fleetHQ servicing dealers offer the fleetHQ Trailer Readiness program to help construction fleets comply with the CSA safety enforcement program. Trained technicians perform inspections of trailer components, including tires, and make the results available through an online, secure fleetHQ web portal and also through fleetHQ’s TVTrack tire management program.

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Mine tunnel’s lightweight mix expedites extraction schedule

Elemix concrete additive, an engineered lightweight synthetic particle (LSP) that uniformly reduces the weight of concrete, was used in a backfill mix for a 1,700-ft.-long, 26-ft.-wide mine slope built by Arch Coal, Inc. in Grafton, W.Va. The new Leer Mine will be a world-class underground facility, with projected annual output of 3.5 million tons of premium metallurgical coal.

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Drum-mounted probe exhibits increasing potential to trump cone test for slump

After four years of development and mixer fleet installations in 17 countries (and counting), the drum-mounted IBB Rheological Probe is shaping up as an alternative to conventional slump and spread testing. The device uses principles similar to a rheometer: Movement of an “impeller” within the concrete load at different speeds creates a flow curve that can be used to gauge viscosity and yield stress—the true behavior of fresh concrete. Most importantly, workability can be accurately estimated on a wide range of slump values by using a calibration with the load measured at low drum speed.

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