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Incompatibility of Greases

A lab technician tests grease from a problem bearing and finds that, although the grease meets all specifications, it is not performing as it should. A hot strip steel mill changes over to a grease that has won high praise from other mills, but complaints are pouring in. During a rush production run, a critical motor fails even though it had been properly lubricated as specified in the maintenance manual. What happened?

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Doosan DA40 Articulated Truck Offers Improved Performance

Doosan Infracore Construction Equipment launched its new DA40 articulated dump truck (ADT), the first in a new family of Doosan ADTs offering increased engine power and torque, higher payloads, lower fuel consumption, enhanced operator comfort and faster travel speeds, according to the company.

Powered by a 6-cylinder interim Tier 4 compliant diesel engine with a gross power output of 500 hp at 2100 rpm, the new DA40 offers a 10-percent increase in engine power compared with the previous MT41 model. With a 22-percent increase in gross torque to 1,750 lb. ft. at 1300 rpm, the torque available in the DA40 is “best in class” in the ADT market.  

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Superior Belt Scale Characterized by Pinpoint Accuracy

Superior Industries announced the completed development and market release of a brand new conveyor belt scale. Designed to produce precision measurements, the new scale is available in two different models.

The WB model has an accuracy rating of 1.0 percent (+/- 0.5 percent). With independent weigh bridge brackets, it accommodates multiple belt widths and is designed for material handling up to 2,000 tph.

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Deister Adds Highly-Mobile, Heavy-Duty Horizontal Screening Plant

Deister Machine Co. Inc., offers the Deister Portable Heavy-Duty Horizontal Screening Plant with Feed Conveyor. Available in 6- x 20-ft. and 8- x 20-ft. models, and offered in a number of custom configurations, the Deister Portable Heavy-Duty Horizontal Screening Plant with Feed Conveyor is a highly-mobile and versatile solution that is ideal for in-pit portability or ease of transport from site to site in crushed stone, and sand and gravel; or in concrete and asphalt recycle applications.

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Komatsu America Corp. Hydraulic Excavator Offers Improved Hydraulics

Komatsu America Corp. introduced the PC390LC-10 hydraulic excavator.  With a flywheel horsepower of 257 hp (192 kW), the PC390LC-10 is powered by a Komatsu SAA6D114E-5 engine and is EPA Tier 4 Interim and EU Stage 3B emissions certified.  

“The PC390LC-10 is built on proven and innovative Komatsu technology to produce an environmentally-friendly excavator with increased power and decreased fuel consumption,” said Doug Morris, Komatsu America Corp., product manager, excavators. “As with all of our Tier 4 Interim machines, it also comes standard with Komatsu Care, our complimentary maintenance program that can ease the cost of buying or leasing a Tier 4 Interim machine, and increase residual values on lease returns as well as the price of used equipment sales.”

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