Ryson Unit Load Spirals

Ryson Spiral Conveyors need less floor space than conventional conveyors and are faster and more reliable than any elevator or lift.

Modular Design
An innovative modular design allows Ryson to customize with ease and modify in the field to accommodate emerging needs. All spirals are made to order and are available in 4 basic configurations ( A, B, C and D), accommodating most requirements relating to the location of the in and out feed tangents. All configurations can operate up or down in a clockwise or counterclockwise rotation.

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. All Ryson Spirals are 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 the Ryson Spiral Conveyors to be viable in the manufacturing, packaging, bottling, order picking, distribution, and warehousing operations of most industries.

Proprietary Chain Slat Arrangement:
This innovative arrangement enables a low friction operation. The 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 and at the same time increases the load carrying capacity of the chain up to 75 lbs. per linear foot. This facilitates high speed, low noise and long life.

Overlapping Slats
The overlapping slats provide a smooth efficient conveying surface suitable for a wide variety of load types and sizes for speeds up to 200 fpm. The slats are made of a fiberglass reinforced nylon and are available in widths of 8″, 12″, 16″, 20″, 24 and 26″. The slats can also be furnished with friction inserts to accommodate slick products such as plastic totes or frozen items.

Built In Protection
All Ryson Spirals are equipped with an automatic chain tensioning device and built in overload protection. The chain tensioning device is spring operated and a proximity sensor is sensing the correct operating position of the device. The overload protection device has an adjustable torque arm arrangement which is connected to the drive motor. A proximity sensor will sense when the device pivots during an overload condition and cause the motor to stop.

Most of our spirals are shipped without controls because they are normally integrated into an overall conveyor control system. The spirals always include an inverter duty gear motor and two proximity sensors, one for the automatic chain tensioner and the other for the overload protection device.

A Variable Frequency Drive (VFD) is required for the proper operation of the spiral. Ryson offers several controls options including :

  • Stand alone control panel with interface capabilities
  • Prewired motor disconnect
  • Proximity sensors prewired to a central junction box
  • Prewired missing slat detection sensors.

All Ryson Spirals are shop tested prior to shipment, but optimal performance depends on proper integration with the overall conveyor system.

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