Keep ‘Em Rolling
Without the right conveyor parts and components, aggregates operations would come to a screeching halt. Here’s a selection of what’s available to keep your conveyors rolling smoothly.
by Kerry Clines, Senior Editor
Extended wear life results in lower maintenance costs and less downtime.
Martin Engineering Co.
Martin Engineering says its Apron Seal skirtboard sealing system provides two wear surfaces on a single elastomer sealing strip installed along the bottom of the skirtboard in a belt conveyor loading zone. When the bottom side of the strip against the belt is worn, the sealing strip is inverted, providing a second service life. The skirting is available in lengths up to 300 feet.
Richwood says its Cushion Arc heavy-duty impact idler provides impact protection for conveyor belts. Each idler has five to nine individual rollers that provide full-belt-width radius support. The rollers are 6-inch-diameter R2000 rubber molded over 2.75-inch-diameter steel shells. The rollers can be easily replaced from the side of the belt.
Martin Sprocket & Gear, Inc.
Martin Sprocket & Gear offers a complete line of heavy-duty conveyor pulleys and components. Its drum pulleys are constructed for standard duty, mine duty, or quarry duty and are available in stock or made-to-order versions. Wing pulleys are designed to withstand the most common types of failure — wing folding, premature contact bar wear, and hub weld fatigue.
Easy maintenance equals less downtime.
Flexco’s new MHS Cartridge Cleaner slides out from one side of the conveyor or chute wall, allowing a single worker to inspect, service, or replace it in minutes, thereby minimizing downtime. The side slide-out design is safer for workers, as it doesn’t require them to crawl underneath the conveyor or be in tight spaces within a chute.
Superior Industries says its new line of conveyor take ups helps to maintain proper belt tension at the drive pulley. The line includes telescoping tube take ups, wide slot take ups, top angle take ups, light-duty take ups, heavy-duty take ups, and center-pull conveyor take ups. The take ups designs allow for mounting to most conveyor frames.
ASGCO says its Skalper IV blade with E-Z Torque Tensioning System was enhanced with a new blade design that features horizontal sipes/wear grooves across the entire width of the cleaning edge and an arc-shaped back side. The self-adjusting tensioner has redesigned brackets with bushings on both sides for smooth operation.
Flexibility and customizing are key for some operations.
Baldor Electric Co.
Baldor says its new Dodge Motorized Torque-Arm II — a right-angle, C-face, shaft-mounted speed reducer — features a new, compact, flexible drive design that allows the reducer to mount in multiple positions. Two motor speeds and multiple gear ratios provide a wide range of speeds. The unit’s straddle-mounted input pinion provides maximum torque throughput with no overhung pinion shank, according to the company.
Precision Machine & Manufacturing, Inc.
Precision Machine says its screw conveyors move virtually any dry, granular, or powdery material smoothly and uniformly without packing or jamming. Standard screw configurations include variable pitch, tapered flights, cut flights, mixing paddles, and ribbon screws. The conveyors can be manufactured to any specified size using commercially available materials.
Bearings keep the “smooth” in conveyors.
Power Transmission Solutions
Power Transmission Solutions says its Sealmaster USRB spherical roller bearings offer superior performance and value. Features include patented, race-mounted, felt-lined finger seals; +/-2 degrees misalignment; set-screw lock bore sizes from 1-1/8 to 7 inches; adapter lock bore sizes from 1-1/8 to 8 inches; and high basic dynamic rating.
Luff Industries Ltd.
Luff says its conveyor idlers — consisting of a polymer end cap, triple labyrinth seal, and optional high-moisture seal — offer improved sealing to protect bearings from moisture and contaminants. The company says the idlers prevent premature bearing failure, resulting in longer roller life, reduced downtime, and lower maintenance costs.
The Timken Co.
Timken offers a complete line of spherical roller bearings, including the 23 and 33 series. Key to the spherical roller bearing design is the one-piece fully machined brass cage. The cage pocket wraps around the roller, providing guidance as the rollers rotate in and out of the load zone. The roller end and cage pockets are engineered to promote lubrication flow and reduce operating temperatures.
Goodman-Hewitt says it provides the technologies wanted by the aggregate industry, offering a wide range of ready-to-go ball bearings and roller bearings. The company also offers the option of regreasable or sealed bearings.
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