Engine maker enhances its B6.7 and L9 Performance Series units with dual REPTO for higher power in construction equipment applications
Engine and power products major Cummins has announced that its B6.7 and L9 Performance Series power units will feature new engine power take-off (PTO) capabilities to support key applications such as cranes, crushers and screeners.
The units are available from power ratings of 100-675hp, delivered as a complete and ready-made package, comprising an engine, exhaust aftertreatment system, radiator and cooling system, plus auxiliaries such as mounting feet, hoses and an air cleaner. According to Cummins, more than 60% of the content is pre-approved, making the machine integration process simpler and quicker.
Jeremy Harsin – Cummins Off-Highway marketing director, said: “Our Performance Series power units offer a flexible drop-in solution for manufacturers. The high-power density of our engines enables them to deliver high machine capability for hard working applications such as crushing, screening and pumping.”
Citing examples of installations to date, Cummins said the L9 units power Anaconda’s new J12 and I12 crushing machines and the B6.7 version is available with Bandit in their Intimidator 20XP tree chipper plus NLB Corp’s water jetting systems.
“To increase the flexibility and capability of the power units, we are integrating new single and dual rear-engine power take-offs (REPTO). These complement their standard PTO capability used for items such as hydraulic pumps. We are also making these available on the base engines without the pack,” added Harsin.
As an example, fitted with the dual REPTO, the L9 will have a total drive capability of 560Nm. This will make the engine capable of driving additional pumping capability through SAE B two- and four-bolt mounts. Integrated into the flywheel housing, the dual REPTO is compact and has a minimal impact on engine packaging, with added weight of approximately 100kg.
“For equipment manufacturers, they have the ability to efficiently drive more from the engine without the need for additional aftermarket systems. This would support driving of hydraulic pumps for all sorts of machine functions from steering systems to fans, etc. It will reduce installation costs and complexity, for a more integrated solution,” said Harsin.