Based on field-proven designs refined over decades, LeTourneau log stackers set the standard for productivity. Independent two-wheel or four-wheel electric drive generates maximum torque instantly, for maximum traction. Constant-rpm engine operation dramatically improves fuel economy and reduces engine wear. Unimpaired visibility and an articulated frame, combined with the superior tractive effort of LeTourneau electric drive, help produce the industry's fastest cycle times. LeTourneau log stackers are available in five models with capacities ranging from 35 to 65 tons: