2011 APPCO 4,000 CUBIC FT SAND STORAGE PIG DRY BULK TANK TRAILER WITH CONVEYOR BELT SYSTEM Conveyor powered by a Cat diesel engine. This unit uses a corrugated sidewall conveyor belt with four (4) proppant compartments with a rear mounted discharge chute. 4,000 Cubic Ft Capacity Spring Suspension Self Contained Hydraulic System 24 in Belt 4 Compartments Hydraulic Leveling Underbody Conveyor Hydraulic Power Pack Hydraulic Landing Gear Hydraulic Controls Spring Suspension Aluminum Wheels Tires: 11R 22.5 GVWR: 55,000 KG (121,250 LBS) Multiple units Available.