Bosch Rexroth is providing back-up generator drive equipment to Sir Ranulph Fiennes’ latest polar expedition – The Coldest Journey. This expedition is the first attempt to cross the Antarctic continent during the polar winter, using two Caterpillar bulldozers in conditions which could reach -90°C. In addition to the implement pump for the dozer blade supplied to Caterpillar, Bosch Rexroth was also asked by Finning, Caterpillar’s distributor in the UK, to supply two bespoke valves for additional hydraulically driven back-up generators.