Screw Conveyors

Newell Machinery Screw Conveyors are designed to convey fairly free flowing products, granular materials, etc from an inlet source to a discharge point in a mostly horizontal orientation. They are a fairly simple design with a screw helix mounted on a central pipe which rotates to push material along the bottom and sides of a trough. Screw conveyors are very efficient but do lose their efficiency as they are inclined.

Standard U-Trough / Flared Trough
These types of screw conveyors are the most common types built. They can often be built from standard, off-the-shelf parts, but also can be customized to fit virtually any need. View Example
Tube Screw
Tube screw conveyors are often used in situations that require a highly cost effective method of conveying product at inclines since they are fully (100%) loaded to reduce fall back of material. View Example
Twin/Triple/Quad/Live Bottom Bin Screws
Multiple screw conveyors combined in one trough are often used to convey difficult flowing products from bins, discharge from large openings that have small amounts of headroom available, or numerous other reasons. View Example
Screw Conveyors Capacity Chart
Conveyor Loading % Screw Diameter Maximum Lump Size Capacity Cubic Feet Per Hour
At One RPM
Capacity Cubic Feet Per Hour
At Maximum RPM
Maximum Economical Speed RPM
15% 45/80.211572
63/40.755168
91 1/22.817964
101 3/43.722962
1226.738958
142 1/210.859455
16315.984353
18322.71,13550
203 1/231.21,40445
24458.02,03035
30% A 45/80.4153130
63/41.5183122
91 1/25.6644115
101 3/47.2814113
12213.31,370103
142 1/221.12,00495
16331.51,67053
18345.72,28550
203 1/262.42,74544
244118.07,78866
30% B 45/80.412972
63/41.510268
91 1/25.635864
101 3/47.244662
12213.377158
142 1/221.11,16055
16331.51,67053
18345.72,28550
203 1/262.42,74544
244118.04,05034
45% 45/80.62114184
63/42.28406178
91 1/25.635864
101 3/47.244662
12213.377158
142 1/221.11,16055
16331.51,67053
18366.38,022121
203 1/295.610,611111
244172.015,48090
100%45/81.3407 N/A
63/44.81,425 N/A
91 1/217.04,590 N/A
101 3/424.06,336 N/A
12244.011,088 N/A
142 1/268.015,912 N/A
163104.022,464 N/A
183150.031,050 N/A
203 1/2208.039,312 N/A
244340.052,020 N/A