Products & Equipment Pits & Quarries
N-Class Vibrating Screen Offers Unique Alternative to Grizzly Feeders

May 2, 2012, St.
Catherines, Ontario – W.S. Tyler’s line of N-Class Vibrating Screens
features four-bearing eccentric screening technology to help minimize
structural vibration and ensure smooth, efficient operation. The technology and
design of the N-Class offers a productive, reliable alternative to grizzly
feeders, and is ideal for mining scalping applications. Additionally, the
N-Class offers self-cleaning action to minimize common issues found with
traditional grizzly feeders, including blinding and pegging.

May 2, 2012, St.
Catherines, Ontario – W.S. Tyler’s line of N-Class Vibrating Screens
features four-bearing eccentric screening technology to help minimize
structural vibration and ensure smooth, efficient operation. The technology and
design of the N-Class offers a productive, reliable alternative to grizzly
feeders, and is ideal for mining scalping applications. Additionally, the
N-Class offers self-cleaning action to minimize common issues found with
traditional grizzly feeders, including blinding and pegging.

The
N-Class is flexible enough to fit into most operations with an apron feeder,
yet features advanced eccentric screening technology to handle heavy-duty
applications. The eccentric shaft design forces the screen body to follow the
shaft movement. While it travels upward, the counterbalance weights move in the
opposite direction and create an equal force to that generated by the body. As
a result, the forces cancel each other out while generating a consistent
positive stroke that minimizes structural vibration and handles material volume
spikes without losing momentum. Additionally, it creates a self-cleaning action
that reduces blinding and pegging while improving overall screening efficiency.

For
further enhanced operation, the N-Class can be used with perforated plate
screen media, up to 4-inches thick. Unlike systems that utilize individual
grizzly bars, the perforated plate with circular holes does not allow elongated
material to get stuck between bars.This prevents bridge building for the fine
material commonly found in grizzly feeders. The circular holes feature slightly
tapered edges to further minimize plugging and clogging As a result the screen
openings on a N-Class stay clear and eliminate all fines prior to reaching the
crusher. This minimizes the wear and tear on the crusher, saving the customers
substantially on crusher spare parts and maintenance every year

Built for
high production rates, the N-Class can process up to 5,000 tons-per-hour and
can handle material up to 80-inches by 40-inches in size, and up to 40-inches
thick. The N-Class is available in sizes from 4-feet by 8-feet, up to 8-feet by
24-feet, and with inclines from 10- to 20-degrees. Up to 3 screen decks are offered
to better accommodate different materials.

All W.S.
Tyler screens undergo extensive testing and inspection prior to shipping,
including vibration analysis. These inspections ensure proper workmanship,
correct balance and smooth operation. During commissioning on-site, the screen
is again tested to make sure it achieves optimal performance within the
customer’s specific operation and performance targets. The N-Class is backed by
a standard 18-month warranty from date of shipment. Additionally, the warranty
can be increased with optional customer-specific warranty upgrade packages.