Screw Conveyors

With two basic outer casing designs, trough or tubular, and numerous screw forms, nearly all products ranging from very dense, sticky or viscous to light and fluid materials.

The helix of the screw can be either left or right hand allowing for bi-directional feeding from point to point. This is very useful when discharging from bins.

Screw conveyors can convey material from the horizontal plan through to vertical over distances up to 30m making them ideal for delivering a metered amount of product within all of the process system.

Large screw diameters up to 750mm can transfer up to 830m3/hr of a material with a 45% conveyor loading.

Standard Features of Screw Conveyors:

• Integral gear motor
• Chain and sprocket drive
• Safety guarding on the drive
• Solid stub shafts
• Safety switch
• Minimal external ledges
• Lip type shaft seals
• Nominally 2-3mm clearance between the flighting and the body
• Heavy duty self aligning bearings
• Fully welded construction
• Removable end plate for ease of servicing flights
• Central discharge

Other Options Available for Screw Conveyors:

Safety Features:

• Full guarding on the drive
• Operation and maintenance manuals
• Safety grills
• Key-type safety switches

Screw Conveyors Materials of Construction:

• Carbon steel
• 304 Stainless steel
• 316 Stainless steel

Discharge:

• End
• Butterfly valve
• Flush fit valve
• Off set
• Drop bottom doors
• Lined troughs
• Tapered troughs

Drive:

• Shaft mounted
• Under hung
• Inline
• Floor mounted

General Details of Screw Conveyors:

• Motor starters
• Abrasion resistance liners
• Sanitary or industrial finish
• DIP motors
• Air purge seals
• Custom designs
• Heating or cooling jackets
• Semi-cylindrical body