Insidepenton Com Images Hybrid Sweeper Scrubber Small
Insidepenton Com Images Hybrid Sweeper Scrubber Small
Insidepenton Com Images Hybrid Sweeper Scrubber Small
Insidepenton Com Images Hybrid Sweeper Scrubber Small
Insidepenton Com Images Hybrid Sweeper Scrubber Small

Hybrid sweeper-scrubber goes green

Sept. 29, 2011
Hybrid sweeper-scrubber goes green

The CS7000 sweeper-scrubber from Nilfisk-Advance, Plymouth, Minn., can use a variety of hybrid drives — LP gas/electric or diesel/electric — for power. There’s also an all-electric version. And it uses electric motors to eliminate most of the hydraulics commonly used on traditional ride-on cleaning equipment.

The hybrid version uses liquid propane or a diesel engine to drive a high-capacity ac-brushless alternator which is hooked to a 36-V battery pack. The batteries’ primary purposes are to provide supplemental peak load sharing and to keep the machine working for a short time in case the engine fails. The 36-V power drives the ac motors for steering and propulsion, while dc motors propel the sweepers and scrubbers. All the motors are IP55 wash-down rated. Engine speed adjusts to deliver all the power needed to support various machine operating modes. The hybrid machines use 50% less fuel and emit fewer CO2 emissions.

The all-electric version, dubbed ePower, uses the same electric drives and delivers 5.4 hr of run time on a single charge, which is about 65% more run time than competing electric cleaners. It relies on conventional lead-acid batteries.

The vehicles use a cylindrical sweeper with a separate disc scrubber. This lets the cleaner sweep and scrub in one pass without putting cleaning solution into the debris hopper, keeping swept up debris dry. An optional dust-suppression feature reduces airborne dust by 85% compared to motorized side brooms. And a nanofiber filter resists clogging.

The cleaner-scrubber can be used for industrial buildings such as warehouses, factories, and shipping facilities, and in outside areas such as park grounds and parking lots.

© 2011 Penton Media, Inc.

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