Interlocking Log Grapples Application: Hawco's electro-hydraulic interlocking log grapples are designed to handle logs either from the truck or pile. These grapples are usually selected for use on portal cranes or circular type cranes in paper mill woodyards or lumber mills. Hawco's designs are well known for their closing force which allows for maximum loads and holding power. Sizes: 5 to 100 square foot capacity Standard Features: Easily maintained uni-directional hydraulic system Commonly used, readily available hydraulic components All alloy steel construction. Pins and bushings made of heat treated 4140 and 4150 alloy stock. All pins and bushings are lubricated through recessed grease fittings. Tines are boxed and ribbed for greater strength. Cylinders fitted with load-holding valves. Options: 360 degree power rotation Chains for securing the load within the tines better Reservoir oil heater