304 Industrial Shaftless Screw Flight Continuous Shaftless Spirals For Environmental

Shaftless Spirals are manufactured with single or multiple bars of flanked and/or stacked flights welded together. Shaftless screws can also be manufactured as a combination of continuous and sectional flights.
Spirals are produced from a flat bar in a multitude of diameters and pitches. Flat bars can have different shapes and can be oriented in different ways. These are not limited to the ones listed below.

Shaftless Flight Technical

Shaftless Flight Features

Single flight
Use the following conditions to describe a single spiral (without blade):
Outer diameter (OD)
Spacing (the distance between adjacent flights). Many manufacturers only provide a pitch equal to the diameter.
Rebar size (if known). The size of the rod determines the inner diameter.
The spiral is usually manufactured in a right-handed configuration, but it can also be manufactured in a left-handed configuration. The spiral can be used in push, pull or reverse mode. Depending on the design and application, the spiral can be with or without an insert (second spiral).​

Double flight
The description standard of single helix (double helix) with insert is as follows:
Outer diameter (OD)
Pitch (linear distance between two flights)
Bar size (if known).
The spiral is usually manufactured in a right-handed configuration, but it can also be manufactured in a left-handed configuration. The spiral can be used in push, pull or reverse mode. Depending on the design and application, the spiral can be with or without inserts (second spiral)

Shaftless Flight Application

How to procedure to order shaftless Flight

• Right hand / Left hand
• push or pull
• The outside diameter (OD)
• The thickness of the flight
• The inside diameter (ID) or shaft OD
• Pitch
• Material
• length
• Quantity
• special requirements