Pre-load/transfer station compactors feature automated controls & free-standing compacted loads. Specifications of pre-load/transfer station compactors include bale sizes from 7 ft. x 7 ft. x 13 ft. to 7 ft. x 7 ft. x 34 ft., load capacities from 25 tons to 125 tons & horsepower ratings from 100 hp to 250 hp.