Rock Products

JUN 2013

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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MATERIAL HANDLING CONVEYING GREYSTONE OFFERS UNIBODY FINE MATERIAL WASHING SCREW The New Unibody Fine Material Washing Screw from Nebraska-based GreyStone Inc., can be set up quickly and consistently delivers thoroughly cleaned aggregate, saving operations time and money. Its one-piece body design features reconfigured wings that are welded to the tub, creating seamless water retention, and is fabricated out of ASTM A36 certified structural steel for superior stability while maintaining a lightweight structure. Designed to be highly portable, the 36-in. x 25ft. Unibody eliminates the need for extra highway permits. The unit is ready for production in three simple steps: (1) Attach the legs; (2) Connect the water; (3) Plug into a power source. Additional features of the Unibody include a Dodge high-efficiency speed reducer, V-belt drive and guard and a 15-hp, 1800rpm, 3-phase, 60-hertz, 480-volt electric motor. The conveyor shaft has welded spiral segments and replaceable steel backed, rock grade, rubber wear shoes for increased wear life. Superior Debuts New Mobile Ship Loader Superior Industries launched its latest ma‐ terial handling solution to help ship‐loading applications reduce downtime at ports and terminals. Called the Stingray Mobile Shiploader, the portable unit greatly re‐ duces downtime by trimming multiple hatches from one feed point. "Repositioning a ship loader's feed point or loading hopper cuts off the material flow from loader to ship, resulting in costly downtime," says Vice President of Engineer‐ ing Bob Domnick. "Our goal is to reduce the number of times a feed point needs to be moved and then speed the time it takes when relocation is required." In marine terminal applications, the Stingray Mobile Shiploader's telescopic conveyor allows the equipment to extend an additional 30 percent. This means the new shiploader reaches out to multiple hatches from the same feed point. In addi‐ tion, while positioned over a hatch, exten‐ sion and retraction of the telescopic conveyor means fully trimmed hatches. "We know of one client who compared a unit without this conveyor technology to one of our telescopic units," said Domnick. "According to their load sequence, our tele‐ scopic conveyor reduced the amount of moves required to load their vessel from 35 to seven." In addition, Superior says a commitment to conveyor mobility is another variable for accelerated load times. Each Stingray Mo‐ bile Shiploader is manufactured with ex‐ panded mobility packages at both the feed‐point or tail of the conveyor and at its radial or drive tires. Often manufactured with track technology, portability at the shiploader's feed‐point al‐ lows for rapid relocation from hold‐to‐hold and simplifies movement on, off and throughout a terminal or port. In addition to the 360‐degree rotation at the tail, the conveyor's drive tires are equipped to move inline, transversely and radially. New to Superior, says the company, is a camber or slight arch shape to the con‐ veyor's structure. This allows the Stingray Mobile Shiploader to maintain a tight clear‐ ance between the conveyor and the deck of the vessel. This design benefits owners be‐ cause it reduces the shiploader's drop height to eliminate dust, preserve material integrity and reduce the length of discharge chutes, a costly component. Superior says it is intentionally armed with a massive engineering department to work closely with clients on custom, individual applications and specifications. Common to any port or terminal client, local environ‐ ment plays a crucial role in how each shiploader is individually designed. Superior Industries, www.superior‐ GreyStone, 28 ROCKproducts • JUNE 2013

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