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Helicoid Conveyor Screws

Helicoid Conveyor Screws are precision cold-rolled from a specific grade of steel alloy into a continuous smooth finished and hardened helix. Our selection of helicoid lighting utilizes proven manufacturing processes and superb material selection to ensure a long and effective working life. Morse specifically, the design of helicoid conveyor screws is a very cost-effective solution for bulk material handling.
These conveyor screws are designated by a few key factors:
  • Helicoid Screw Diameter
  • Screw Conveyor Configuration / Type
  • Right or Left Hand Configuration
  • Pitch
  • Thickness
Helicoid conveyor screws are manufactured by intermittently welding helicoid flighting onto a center pipe, internal collars are placed on each end and welded to accommodate the shafts. Additionally, screws are structurally reinforced at the ends by end lugs. We can supply a continuous welding configuration to where the weld is on the carrying side or for both sides upon request. Additional options include; stainless steel helicoid conveyor screws and non-metallic helicoid conveyor screws.

When it comes to selecting the right screw for a new screw conveyor system we recommend that you review our screw conveyor engineering data page to ensure proper sizing and output needs. The screws are available as either right-hand or left-hand screws, right-hand screws will be supplied if left is not specified. When possible, it's best to use the standard length of the screw per the diameter required. The carrying side of the flights that do the actual conveying are free of lugs to ensure no material drag or hanging, the back end (also referred to as the non-carrying end) is reinforced at the ends to guard against the flight folding back. Refer to the drawings below for a better understanding of right and left-hand configurations.

Helicoid Flighting Screw Size Chart

Note that there are right-hand (right) and left-hand (left) screw types.
Right Std. Length Screws Left Std. Length Screws Screw Dia. Length Section Weight (LBS) Right Std. Length Flighting Only Left Std. Length Flighting Only Section Weight (LBS) Thickness of Flight Next to Pipe (B) Thickness of Flight Outer Edge (C) Nominal Pipe I.D. Pipe O.D. Coupling Diameter (A)
4H204-101-0214 4H204-111-0212 4" 9' 10.5" 31 4H204-120-0146 4H204-125-0141 9.0 1/8" 1/16" 1-1/4" 1-5/8" 1"
4H206-101-0354 4H206-111-0352 4" 9'
10.5"
38 4H206-120-0211 4H206-125-0216 16.0 3/16" 3/32" 1-1/4" 1-
5/8"
1"
6H304-101-0420 6H304-111-0428 6" 9'
10"
50 6H304-120-0286 6H304-125-0281 14.0 1/8" 1/16" 2" 2-3/8" 1-1/2"
6H-308-101-0495 6H-308-111-0493 6" 9'
10"
64 6H308-120-0351 6H308-125-0356 28.0 1/4" 1/8" 2" 2-3/8" 1-1/2"
6H312-101-0560 6H312-111-0568 6" 9'
10"
78 6H312-120-0427 6H312-125-0422 42.0 3/8" 3/16" 2" 2-3/8"
1-1/2"
9H306-101-0636 9H306-111-0634 9" 9'
10"
70 9H306-120-0567 9H306-125-0497 31.0 3/16" 3/32" 2" 2-3/8"
1-1/2"
9H312-101-0701 9H312-111-0709 9" 9'
10"
101 9H312-120-0633 9H312-125-0562 62.0 3/8" 3/16" 2" 2-3/8"
1-1/2"
9H406-101-0776 9H406-111-0774 9" 9'
10"
91 9H406-120-0708 9H406-125-0638 30.0 3/16" 3/32" 2-1/2" 2-7/8" 2
9H412-101-0842 9H412-111-0840 9" 9'
10"
121 9H412-120-0773 9H412-125-0703 60.0 3/8" 3/16" 2-1/2" 2-7/8" 2
9H414-101-0917 9H414-111-0915 9" 9'
10"
131 9H414-120-0849 9H414-125-0778 70 7/16" 7/32" 2-1/2" 2-7/8" 2
10H306-101-0982 10H306-111-0980 10" 9'
10"
81 10H306-120-0914 10H306-125-0844 42.0 3/16" 3/32" 2" 2-3/8" 1-1/2"
10H412-101-1055 10H412-111-1053 10" 9'
10"
130 10H412-120-0989 10H412-125-09119 69.0 3/8" 3/16" 2-1/2" 2-7/8" 2"
12H408-101-1121 12H408-111-1129 12" 11'
10"
140 12H408-120-1052 12H408-125-0984 67.0 1/4" 1/8" 2-1/2" 2-7/8" 2"
12H412-101-1196 12H412-111-1194 12" 11'
10"
175 12H412-120-1128 12H412-125-1057 102.0 3/8" 3/16" 2-1/2" 2-7/8" 2"
12H508-101-1261 12H508-111-1269 12" 11'9" 168 12H508H-120-1193 12H508-125-1123 64.0 1/4" 1/8" 3" 3-1/2" 2-7/16"
12H512-101-1337 12H512-111-1335 12" 11'
9"
200 12H512-120-1268 12H512-125-1198 96.0 3/8" 3/16" 3" 3-1/2" 2-7/16"
12H614-101-1402 12H614-111-1400 12" 11'
9"
216 12H614-120-1334 12H614-125-1263 112.0 7/16" 7/32" 3-1/2" 4" 3"
14H508-101-1477 14H508-111-1475 14" 11'
9"
170 14H508-120-1409 14H508-125-1339 84.0 1/4" 1/8" 3" 3-1/2" 2-7/16"
14H614101-1543 14H614-111-1541 14" 11'
9"
236 14H614-120-1474 14H614-125-1404 132.0 7/16" 7/32" 3-1/2" 4" 3"
16H610-101-1618 16H610-111-1616 16" 11'
9"
228 16H610-120-1540 16H610-125-1479 120.0 5/16" 5/32" 3-1/2" 4" 3"
16H614-101-1758 16H614-111-1756 16" 11'
9"
267 16H614-120-1680 16H614-125-1610 163.0 7/16" 7/32" 4" 4-1/2" 3"
18H610-101-1899 18H610-111-1897 18" 11'
9"
292 18H610-120-1755 18H610-125-1685 144.0 5/16" 5/32" 4" 4-1/2" 3"
20H610-101-1949 20H610-111-1947 20" 11'
9"
298 20H610-120-1854 20H610-125-1701 150.0 5/16" 5/32" 4" 4-1/2" 3"




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