Which rotation direction has your Dahlman axialroller? Clockwise (CW) or counterclockwise (CCW)?
Most machine construction companies assemble right-hand spiral rollers in their Dahlman axial roller cleaning unit. But there are some equipment manufacturers that use a left-hand spiral roller.
Machine construction companies like Ploeger, Asa-lift and Kverneland use both clockwise and counterclockwise Dahlman axial spiralrollers.
How can I determine the spiral direction of a Dahlman axialroller?
Below we explain two different methods:
- Methods one, the comparison with the screw thread of a bolt.
When you rotate a bolt clockwise and the bolt goes deeper in the nut, it’s a right hand thread. With a left hand thread the bolt comes up. It’s the same with spiral rollers.
- Methods two, with your finger on top of the spiral.
- Look over the long side of the roller
- Put your finger on top of the spiral
- Follow the spiral with your finger forwards
Does your finger move over to the left side? Your Dahlman axialroller has a left or counterclockwise spiral.
Does your finger move over to the right side? Your Dahlman axialroller has a right spiral or clockwise.
The standard pitch (spiral height) differs for all equipment manufacturers.
We have a extensive range of Dahlman axial rollers with a bigger choice dan available at the original equipment manufacturer (OEM).
Most rollers are available on stock.
If you have further questions please contact us.