110V/60Hz high-efficiency electric motor requires no maintenance. Delivers 4 ton power by a strong 1.175" (30mm) hydraulic ram. 10" diameter x 20" L. log capacity. Self contained hydraulic system. 6" deluxe built in polymer wheels. Comfort grip handle requires 2-hand operation. Compact and lightweight, this unit is portable and easy to store. Preassembled in crate. 1 year limited warranty. Unit weight: 93 lbs.