New transmission series for pressure pumping, fracturing

QTR Transmissions are described and illustrated in this free brochure as recently marketed for high-horsepower pressure pumping and fracturing.

The line is cited as 3,000-hp capable. The first two models will be available fourth quarter 2011. They will be available as a package coupled with their maker’s QSK50 and QSK60 engines, depending on horsepower requirements, or as stand-alone transmissions.

QTR’s lay shaft design is cited to enable exact gear ratios required by oil and gas well servicing operations to match both engine and pump performance.

Dual clutch technology with Cummins Synchro Shift deliver smoother operation plus increase both service life and reliability, it’s noted. The design eliminates common failure mode components experienced with other transmissions. It improves thermal and mechanical efficiency to reduce overall complexity. Thus QTR is able to provide constant torque across operating ranges — with smoother start-up and shifting.

Cummins Incorporated
Box 3005, Columbus IN 47202-3005

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