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 W.S. Tyler Canada offers the F-CLASS as the number one vibrating screen for the heavy mining, crushed stone, and coal industries. It is designed and constructed with many built-in features that are considered extras by other manufacturers. The F-CLASS is a four bearing, circle-throw vibrating machine featuring a double eccentric shaft and is dynamically balanced at all operating speeds. Both the vibrating body and side arms are supported by shear rubber mounts. The F-CLASS four bearing, circle-throw vibrating screen is easy to maintain because of its readily replaceable parts and solid HUCK™ bolted construction. For maximum versatility the F-CLASS offers one, two, or three screendecks. These decks are available in widths from three to eight feet and in lengths up to twenty-four feet. |
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 The positive circle-throw motion of the F-CLASS is developed by a counterbalanced double eccentric shaft, which is supported by four double spherical roller screen bearings. Rubber mounting units isolate the vibrating body from the stationary base frame. The shaft is supported on the base by side arm assemblies that are also isolated on rubber mounting units. The F-CLASS free floating action permits the shaft to find its natural center of rotation without strain or thrust on the bearings. This feature minimizes maintenance and downtime and prolongs the life of the bearings. The F-CLASS vibrating screen is usually installed at an angle of 15 to 25 degrees and operates at speeds of 750 to 1050 RPM. The F-CLASS is designed to provide cut sizes from 6 inches to 20 mesh. |
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 The F-CLASS modular design and the use of standard components result in savings because W.S. Tyler Canada fabricates and assembles different size machines from standard stock components. This standardization of components also results in readily available spare parts. Efficient operation, low production cost, and low maintenance are assured by F-CLASS rugged construction and larger bearings. The bearings used by F-CLASS match the bearings used in our other vibrating screen series. |
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 Every F-CLASS vibrating machine is backed by years of engineering experience. Prior to shipment each machine is carefully examined and operated over a prolonged period assuring correct balance, satisfactory bearing operating temperatures, smooth operation, acceptable noise levels, and quality workmanship. |
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Alloy steel counterweight double eccentric shaft ground to precision tolerances
Heavy-duty self-aligning spherical roller screen bearings with inner races fitted to the shaft and outer races mounted in the cast ductile iron bearing housings
“Loose-on-shaft” main bearings provide easy installation, replacement, and equal load distribution
Labyrinth seals prevent grit or foreign matter from reaching the bearings
Steel counterweighted wheels with adjustable weights for proper balancing
Seamless steel tube shaft casing with cast iron tube heads to assure proper bearing alignment
HUCK™– Bolted Screen Body design for extra strength and rigidity under all working conditions
Stover nuts used in shaft assembly and screen section tensioning for strong, safe connections and easy maintenance
Unique design angle box tension system
Positive 3-bend tension rails to engage the hooked edges of the screen sections
Shaft driven from either end
Grease lubrication standard for low maintenance.
Screen support frames are supplied with replaceable rubber buffer strips which contribute to screen life
Cambered deck construction permitting proper screen tensioning
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 Cambered screen frame assembly with rubber covered support rails |
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 Base mounted drive arrangement with guards |
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 Angle box with stover nuts for proper and secure media tensioning |
| Flat screen frame assembly with tubular rails for modular urethane decking |
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Vibrating or non-vibrating dust enclosure assemblies
Step washing troughs
Differential angle deck assemblies
Spray pipe holes
Non-vibrating spray systems
Wedge tension assemblies
Rubber curtains at feed end between decks
Stationary fines collection hoppers
Side plate liners, ARS, or Tyrethane
Extra heavy-duty screen frame assemblies
Heavy special grade structural steel side plates for additional strength and rigidity
Feed box liners, ARS, or Tyrethane
Discharge lip liners, ARS, or Tyrethane
Deck frame assemblies prepared to accept: Cast double tapered grizzly sections
Perforated plates
Rubber screen sections
Rubber clad plates
End-tensioned harp-type screen sections
A variety of modular Tyrethane deckings
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MATERIAL BULK DENSITY LUMP SIZE
50#/cu.ft .....................20 in.
100#/cu.ft ...................16 in.
150#/cu.ft ...................14 in.
Max. material temperature .............. 250 °F
Max. material drop to deck ............... 12 in.
STANDARD SPEEDS STANDARD THROW
750 RPM ...................... 1/2 inch circle
860 RPM ...................... 3/8 inch circle
1050 RPM .................... 1/4 inch circle |
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