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Cummins Brings Tier IV ’Technology That Transforms’ to Intermat

Significant productivity improvements and fuel-efficiency gains have been realized for the machines with the transition to low-emissions engine

Fri May 15, 2015 - National Edition
Construction Equipment Guide

The opening day of Intermat highlighted a strong presence of Cummins engines in equipment meeting low emissions requirements in the 75 to 751 hp (56 to 560 kW) low-emissions power category. Cummins power was featured in a wide variety of machines, from site dumpers to excavators, cranes to compressors, forklifts to compactors, and wheel loaders to road milling machines.

Significant productivity improvements and fuel-efficiency gains have been realized for the machines with the transition to low-emissions engines, highlighting how Cummins brings technology that transforms to each application — not just with ultra-clean power, but also with improved response and lower operating costs, according to the manufacturer.

The move to near-zero emissions at U.S. Environmental Protection Agency (EPA) Tier IV Final (European Union Stage IV) has been achieved with an additional reduction in fuel consumption to that achieved at Tier IV Interim (Stage IIIB). Depending on application, Cummins-powered machines are able to realize up to 8 percent improved fuel-efficiency compared with their pre-2011 Tier III (Stage IIIA) equivalents. With the full potential of Tier IV technology utilized, even higher savings have been achieved with features such as torque shaping, idle control and eco-operating modes.

Importantly, the advantage of low-emissions engines comes with no compromise to reliability. That has been confirmed by Cummins in-service reports based on a large engine population in operation since the use of exhaust aftertreatment.

Analyses of warranty data and service events clearly indicate that Cummins low-emissions engines are delivering uptime availability levels at least equal to that of previous Tier III (Stage IIIA) engines with a long-established reputation for reliability.

“In-service dependability is a key attribute of Cummins low-emissions technology, and our tracking of the Tier IV engine population is clearly indicating that equipment operators are seeing uptime availability and minimal service intervention equally impressive as what they experience with our mature Tier III engines,” said Hugh Foden, executive director — Cummins off-highway business.

The ability to transform machine performance was reflected in the theme of the Cummins booth, featuring a 49 to 675 hp (37 to 503 kW) engine range compliant with Tier IV Final and Stage IV regulations. The engines have been specified for more than 400 machine integration projects by almost 70 equipment manufacturers.

The engine lineup includes the 4-cylinder QSF2.8 and QSF3.8, targeted toward compact equipment, along with the new QSG12, providing heavy-duty power for high-output machines. The engine lineup also includes the midrange QSB4.5, QSB6.7 and QSL9, together with the top-of-the-range QSX15. Cummins portfolio of key enabling technologies will be showcased, with complete air intake-to-aftertreatment exhaust-out systems and components.

Tried and tested the reliability of Cummins near-zero emissions technology was established with a Tier IV Final and Stage IV field-test program clocking more than 150,000 hours and involving almost 70 machines, spanning across North America and Europe.

In a variety of tough environments — from the cold, high altitude of the Alps to the extreme dry heat of Texas — the field-test work specifically targeted the toughest installation and operational challenges in order to gain the broadest experience and to have total confidence in the ability of the engines to deliver.

A specialized field-test team of dedicated Cummins service engineers and a wider team of around 100 design and application engineers led the work on the field-test program. As well as monitoring activity in person, engineers employed remote monitoring technology in order to fine-tune engines and ensure optimum performance for various duty cycles.

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