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Unit Load Spiral Conveyors
Faster and more reliable than any elevator or lift for heavy unit loads
Get QuoteLow Maintenance
High quality components are used throughout these spiral conveyors. All bearings are sealed for life and need no further lubrication. The chain is of heavy duty nickel plated construction and needs only infrequent lubrication. The slats need no maintenance and can easily be replaced as single components without the use of special tools.
Built-in Protection
Ryson Spirals are equipped with an automatic chain tensioning device and built-in overload protection.
Low Angle of Incline:
A low inclination or declination angle safeguards against loads sliding or tumbling during operation. The normal angle is between 9 and 11 degrees. Modular design allows angle modification to meet specific needs.
Horizontal Transitions:
Ryson Spirals have a horizontal section at in and outfeed allowing the loads to clear the conveyor transitions before changing elevation. This assures a smooth transition between conveyors and prevents jams. Ryson Spirals have no transitions internal to the spiral.
Proprietary Chain Slat Arrangement
This innovative design enables low friction operation. Slats are supported by precision steel roller bearings which ride on a polyurethane wear surface. This arrangement effectively takes up the side forces created by a tight radius while increasing the load carrying capacity of the chain up to 75 pounds per foot. This facilitates high speed, low noise and long service life for spiral conveyors.
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Overlapping Slats
Overlapping slats provide a smooth and efficient conveying surface, suitable for all types of conveyable items. Slat widths of 8, 12, 16, 20, 24 and 26 inches are available. The slats can also be furnished with friction inserts to accommodate slick items such as plastic totes or frozen products.
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Sizes & Configurations
These spiral conveyors come in the following size ranges inches (centimeters):
| Type | Outside Diameter |
Centerline Diameter |
Slat Width |
Frame Width |
| 1200-200 | 4'9" (1450) | 3'11" (1200) | 8" (200) | 11" (280) |
| 1200-300 | 5'3" (1600) | 3'11" (1200) | 12" (300) | 1'3" (380) |
| 1300-400 | 5'11" (1800) | 4'3" (1300) | 16" (400) | 1'7" (480) |
| 1500-400 | 6'7" (2000) | 4'11" (1500) | 16" (400) | 1'7" (480) |
| 1600-500 | 7'3" (2200) | 5'3" (1600) | 20" (500) | 1'11" (590) |
| 1700-400-HC | 7'3" (2200) | 5'7" (1700) | 16" (400) | 1'7" (480) |
| 1700-600-HC | 7'11" (2400) | 5'7" (1700) | 24" (600) | 2'3" (680) |
| 1800-650 | 8'6" (2600) | 5'11" (1800) | 26" (650) | 2'5" (740) |
Configuration Types - Spiral Unit Load Conveyors
Custom Solutions: The position and length of the in-feed tangent on up spirals and out-feed tangent on down spirals can be customized to meet specific layout requirements. Samples are shown below (A-EX, B-MA and C-EX). A horizontal section is provided at in and out feed to assure smooth transition between conveyors. Available in powder coated carbon steel, stainless steel, washdown, and freezer versions.
Small Footprint
The spiral diameter is determined by the size of the loads (length, width and height) to be handled. A broad range of sizes allows conveyors to be viable in the manufacturing, packaging, bottling, order picking, distribution, and warehousing operations of most industries.
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