ROCHESTER, Minn.--(BUSINESS WIRE)-- #AllAmerican--Revolution Concrete Mixers and London Machinery are advancing mixer electrification with the introduction of e-HYDRIVEâ"¢, a patent-pending hybrid drum drive system validated through real-world field testing with Amrize. Designed to power mixer operation without engine idling, the system addresses one of the ready-mix industry's most persistent operational challenges — unnecessary idling during loading, waiting, and pouring — while supporting lower fuel use, ...