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JCB Announces New Six-Cylinder Diesel Line

Posted on June 6, 2013

JCB has announced plans to begin production of a new line of 7.2 L, six-cylinder engines later this year. The new Dieselmax 672 will be available in ratings of 140 kW (188 hp), 165 kW (221 hp), 190 kW (255 hp) and 225 kW (302 hp) with a maximum torque output of 1200 Nm (885 lb. ft.).  

Initially the 672 will be produced to meet EU Stage 2 emissions standards for growth markets including Russia, Brazil and China. The engine will be seen first in JCB’s JS360 crawler excavator for those regions but eventually will be used in additional machines, the company said. The engines will also be offered as part of the company’s OEM product line for use in non-JCB machinery.

They will be built on a dedicated line at JCB Power Systems’ facility in Derbyshire, U.K. In development for more than two years, the Dieselmax 672 have already completed more than 50,000 hours of testing, 25,000 of which have been in machines working in the field, JCB said.

The 672 is based on the company’s four-cylinder 4.8 L Dieselmax engine, with a high degree of parts commonality across the two engine platforms, JCB said. The Dieselmax incorporates Delphi common rail fuel injection with electronic control and fixed geometry turbocharging.

The 672 offers up to an 8% increase in fuel efficiency compared to previous engines in the JS excavator line. In testing, JCB said the engine has recorded a specific fuel consumption of 189 g/kWh (0.310 lb/hp.hr).

JCB said the introduction of the new engine represents an investment of around £45 million.

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