Mobile Processing Equipment
- Published: Wednesday, 01 September 2010 08:00
Inertia Machine Corp.'s 5066 Tracker primary horizontal-shaft impactor is a mobile, track-mounted crusher that delivers up to 700 tons per hour, reportedly at lower cost per ton, while offering trailer-free transport. In contrast to conventional units whose 8-cubic-yard hoppers may require extension wings, the 5066 Tracker features a 14-cubic-yard nonheaping hopper. A 60-inch ◊ 18-foot, variable-speed-drive, vibrating grizzly feeder suits high-impact aggregate applications. The feeder is combined with a 42- ◊ 64-inch opening on the HSI to handle oversized material without bridging; and a 42-inch ◊ 38-foot discharge conveyor with motorized head pulley delivers up to 1,500 tons per hour. Additionally, the 5066 Tracker has a removable axle for easy transport, so no trailers or multiple truck loads are needed.
The HSI's two adjustable aprons allow higher reduction ratios, a more cubical product and minimal fines, the manufacturer says. Reducing maintenance and wear costs, apron and housing liners are reversible and interchangeable. A large, open-style ribbed rotor delivers high inertia and requires less fuel during operation; and a four-bar rotor enables two- and four-bar arrangements.
The 5066 Tracker is powered by a John Deere 400-horsepower Tier III diesel engine and a 125 kW generator. A self-contained and belt-driven power source eliminates component failures typically associated with hydraulic-driven units, product engineers say. The crusher also features remote clutch and track controls, hydraulic-driven tracks, a drive belt guard with two access doors, and an optional cross-belt magnet.
Inertia Machine Corp.
FLSmidth Pekin offers Raptor XL300 and XL400 cone crushers for stationary and portable plants. Besides XL300 and XL400 wheeled models manufactured as stock for immediate purchase, the company can provide custom-designed wheel- or track-mounted plants.
Wheel-mounted plant options include rear discharge and rear feed-side discharge for both XL300 and XL400 models. Combined with a horizontal 6- ◊ 20-foot, two- or three-deck screen, the XL300 can be set up as a closed-circuit crushing and screening plant. Open-circuit crushing and screening are achieved by equipping the XL300 and XL400 with two- or three-deck horizontal screens of 6-, 7-, or 8- ◊ 20-foot dimensions. Hydraulic run-on jacks also are available as an option to level the plant into operating position, eliminating the need for cribbing timbers.
A high pivot point and large crushing stroke reportedly enable the XL300 and XL400 to effect better crushing action throughout the chamber. Moreover, an active feed opening enhances end-product shape.
Protecting the machines from mechanical overload in the event of accumulator-bladder failure are hydraulics implemented through an internal relief valve within dual-acting tramp-release cylinders. When sensing technology detects crushing force overload, an alarm is activated, or the system can be automated to take corrective action. The same automation can be used to optimize crusher performance via feed control, adjustment and monitoring of all critical lubrication and hydraulic parameters. An additional safety feature standard on all Raptor models is counterclockwise crushing action, which protects the machine in case of excessive adjustment-ring movement or ring-gear brake failure.
FLSmidth Pekin LLC
JCB Attachments introduces a range of crusher buckets for use with the company's line of JS160 to JS360 excavators. Crusher buckets can reduce material to a hardcore size less than one inch to 43/4-inch. Three base models [CB60, CB70 and CB90], plus two variants of each of the larger offerings, suit the JS crawler excavator lineup.
Designed to work with the JS160 and JS190, the CB60 bucket has a 0.59-cubic-yard capacity. The CB70 is available in two, 0.78-cubic-yard-capacity versions to suit JS220 and JS260 excavators. The CB90 also offers a single capacity, 0.98 cubic yards, in two versions for the JS260 - 360.
Powered by the excavator's standard hydraulic breaker circuit, the crusher buckets coordinate a fixed jaw in the base with a hydraulically activated hinged jaw in the roof. The gap between the two jaws can be set with shims to determine the size of finished material.
Crushing is achieved by cycling the hinged jaw in and out using an eccentric mounted on a shaft across the top of the bucket. The shaft is rotated by a belt from the hydraulic motor and is equipped with flywheels at each end that store energy from the motor. This smooths out power delivery and reduces stress on the machine for more sustained crushing action. The buckets have 30-hour greasing intervals with two lubrication points.
Powerscreen's Pegson XA750 is a heavy-duty, track-mounted jaw crusher producing up to 827 tons per hour. Equipped with a hydraulically driven pan feeder and live prescreening unit, including a bolt-in cartridge-style grizzly section, it removes fines before crushing to avoid packing and unnecessary manganese wear. Prescreened material can be stockpiled via an optional dirt conveyor or redirected through a bypass chute onto the main product belt. The plant, including magnet and dirt conveyor, weighs 159,000 pounds.
An unrestricted, 55- ◊ 32-inch feed opening prevents bridging and maintains a consistent feed to the Terex WJ55 single-toggle jaw crusher. The crusher's hydraulic closed-side-setting adjustment system allows push-button control of product sizing.
Powering the Pegson XA750 is a 288-kW diesel engine, whose direct drive system is said by the manufacturer to offer power-transmission and fuel-efficiency advantages over hydrostatic models. Engine power is transmitted to the crusher via self-adjusting, dry-plate clutch activated by a self-regulating, push-button, automatic start-up sequence and V-belt drive.
System components also include a hydraulically adjustable product conveyor (13-foot 1-inch discharge height); a modular, removable-for-transport hopper; and two-speed tracks. A hydraulic draw-back rod-retention system and under-crusher access reduce maintenance downtime.
Stedman's 4-Row cage mill can meet most state aglime specifications in open circuit. It reportedly provides consistent product quality and minimal long-term change in end-product characteristics throughout wear-component life, even with high-moisture feed. Since dry feed is not required, clogging, jamming and plugging do not occur.
Though the cage mill typically is mounted as a stationary unit, a self-contained portable plant including motor control center and dust collection allows relocation within or between sites. Material is loaded into the feed hopper or hoppers, conveyed to the cage mill, crushed, and discharged out the side. Open discharge eliminates cleaning and replacement of screens or grate bars.
The 4-Row cage mill is available in capacities ranging from five to 100 tons per hour. While product requirements affect throughput, in general, the larger the mill the lower the cost of operation as measured against tons of output.
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