2-Rope Roundnose Digging Buckets Application: Hawco 2-rope roundnose digging buckets are designed for use in harbor deepening projects and sand and gravel operations in which a rugged, powerful digging clamshell bucket is demanded. Hawco typically works with each customer to design a bucket that will be perfectly matched to the crane's capacity to maximize production. In recent years, Hawco has excelled above all of the world's manufacturers in the design of heavy digging clamshell buckets. Smaller capacity buckets, 7 and 9 cubic yards in capacity, and weighing 75,000 to 90,000 pounds have been built for extremely hard digging applications which typically would require blasting. Sizes: _ to 40 cubic yards Standard Features: 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. Sheaves are cast of alloy steel and fitted with 9C aluminum bronze bushings. Oversized guide rollers for less cable wear. Lip material is T-1 alloy. Scoop reinforcing bars on bowls for prolonged life. Double rib support on bowl arms for additional strength. Recessed center shaft to protect from external contact. Double center shaft design to increase fulcrum effect and therefore, digging forces. Weld-on adapters and teeth Options: Stainless steel overlaid pins and manganese alloy bushings (not applicable to sheaves)