Webasto engine-off cooling keeps off-highway cabins comfortable

The new Webasto Polar Cab TS engine-off cabin cooling system provides on-demand cooling during downtime, resulting in fuel savings, reduced idle time, increased productivity, and operator safety and comfort.

Polar Cab TS engine-off cooling features a patented storage core with a series of aluminum micro-channels that route R-134a liquid refrigerant around a graphite honeycomb substrate that's impregnated with water. The substrate is capable of storing cold energy at an extremely high efficiency, according to Webasto. This cold energy is transferred to the cab for on-demand cooling via an air handler, which measures 19.3 × 6.3 × 18.5 in (490 × 160 × 470 mm) and weighs 18 lb (8 kg).