Electro-Hydraulic Refuse Grapples Application: Hawco electro-hydraulic refuse grapples are designed for use on overhead cranes working in waste-to-energy plants and trash incinerators. These grapples are equipped with easy to maintain hydraulic circuits and a generously sized hydraulic fluid reservoir to prevent overheating. So that the grapples will penetrate into the wet, packed material which accumulates in the bottom of the trash pits, Hawco designs its grapples with greater closing forces to ensure full loads. Sizes: 1 to 16 cubic yards 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. Replaceable manganese alloy tooth points.