Demag Cranes & Components [India] Private Limited offers Push-travel U Trolley. Demag Cranes & Components [India] Private Limited is an ISO 9001 certified company. The Push-travel U Trolley is available in two sizes for load capacities up to 1100 kg [U 11] and 2200 kg [U 22]. The flange width can be infinitely adjusted by means of two adjusting rings and covers the ranges from 58 mm to 200 mm, and 201 mm to 310 mm. Push-travel U trolleys are designed for simple addition of the E electric travel drive at a later date.