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Drawing a length of bar stock over a mandrel forms our helicoid flighting. When a helicoids flight is formed the bar stock crushes, that is, it decreases in width, expands at the section next to the axle and decreases at the outside. The amount this crushes varies with the size of the flight. /Asset/Helicoid.gif
These short pitch screws are recommended for use in inclined screw conveyors of slopes 20° and over. They also are used extensively as feederscrews, especially as the feeder portion of a uniform diameter conveyor screw consisting of a section of short pitch flights and the balance regular pitch. The crosssectional loading of the regular pitch portion of the screw thus is controlled. /Asset/8.gif
Conveyor Screws/Feedscrews
Custom flights and feedscrews in an infinite variety of styles, sizes, materials and applications. From 3/8" OD up to 150" OD. /Asset/Custom-Feedscrews.gif Flight Sectional
Custom flights and feedscrews in an infinite variety of styles, sizes, materials and applications. From 3/8" OD up to 150" OD. /Asset/Sectional-Flights.gif Flight Helicoid
Custom flights and feedscrews in an infinite variety of styles, sizes, materials and applications. From 3/8" OD up to 150" OD.Drawing a length of bar stock over a mandrel forms our helicoid flighting. When a helicoids flight is formed the bar stock crushes, that is, it decreases in width, expands at the section next to the axle and decreases at the outside. The amount this crushes varies with the size of the flight. /Asset/Helicoid.gif
Short Pitch Conveyor Screw
Short Pitch conveyor screws are of regular construction except that the pitch of the flights is made less than the outside diameter of the screw.These short pitch screws are recommended for use in inclined screw conveyors of slopes 20° and over. They also are used extensively as feederscrews, especially as the feeder portion of a uniform diameter conveyor screw consisting of a section of short pitch flights and the balance regular pitch. The crosssectional loading of the regular pitch portion of the screw thus is controlled. /Asset/8.gif
Long Pitch Conveyor Screw
Long pitch conveyor screws occasionally are used for rapid conveying of very free flowing materials or as agitators for liquids. /Asset/9.gif Variable Pitch Conveyor Screw
Variable pitch conveyor screws have succeeding single or groups of flights progressively increasing in pitch. They are used to draw free flowing materials uniformly from the entire length of the feed opening. /Asset/10.gif Tapering Flight or Shaft Pitch Conveyor Screw
Tapering flight conveyor screws are frequently used as feeder screws for handling friable, lumpy materials from bins or hoppers. Tapered screws draw material uniformly from the entire length of the feed opening. /Asset/11.gif Cut Flight Pitch Conveyor Screw
Used for conveying, cooling and moderately mixing materials, simultaneously. /Asset/12.gif Cut and Folded Flight Pitch Conveyor Screw
The folded flight lifts a portion of the material then releases it at the top of the regular flow. This improves aeration and agitation of the material, promotes mixing. /Asset/13.gif Ribbon Screw
Ribbon flight conveyor screws consist of sectional flights, buttwelded together to form a continuous helix. Flights are secured to the pipe by supporting legs. Both ends of the pipe are prepared with internal collars and drilling to accept couplings, drive shafts and end shafts. They are used to convey sticky, gummy, or viscous substances, or where the material tends to adhere to flighting and pipe. /Asset/14.gif Multiple Ribbon Screw
This type of screw consists of two or more ribbon flights of different diameters and hand, mounted one within the other on the same pipe or solid shaft by rigid supporting lugs. Material is moved forward by one flight and backward by the other, thereby inducing positive and thorough mixing. /Asset/15.gif Double Flight Screws
Double flight conveyor screws of regular pitch promote a smooth gentle flow and discharge of certain materials. Very short portions of double flight screws may be used either side of a hanger point, for smooth flow past the hanger. /Asset/16.gif 