




Schematic 3D view; not to scale.
Prime Tracker belt tracking idler
Tracking that acts when the belt moves off centre
Prime Tracker is a belt tracking idler for the return strand. It stays passive while the belt runs true and corrects it with little force when it drifts.
- Passive when running true: the idler and belt do not wear
- Early response: mistracking is corrected before it grows
- Low-maintenance design
- Place on the line
- Return strand
- Recommended for
- 10 industries (of 14)
- Datasheet
- Request with the short form
Overview
What is Prime Tracker belt tracking idler?
Prime Tracker is a belt tracking idler that helps keep the conveyor belt correctly aligned. On misaligned belts, wear increases, maintenance and repairs become more frequent, the belt edges are damaged and a risk of workplace accidents arises. Because Prime Tracker keeps the belt centred, these problems are reduced.
Unlike conventional guiding systems, Prime Tracker stays passive while the belt runs true and acts only when the belt starts to drift from its ideal position, which avoids unnecessary wear. It responds as soon as the belt moves slightly off centre and guides it with very low friction and small forces; it does not wait for the guide roller to tilt before correcting.
Prime Tracker works on the return strand and can also be used on lines running in reverse. It is easy to install, quickly ready for use and needs little maintenance. Used together with AirScrape, it reduces spillage at transfer points; with a lower risk of belt damage, belt repairs and costly downtime are also reduced.

Features
Key features
Passive when running true
Prime Tracker does not act while the belt runs true, so the idler and the belt do not wear unnecessarily.
Early response
The idler responds as soon as the belt moves slightly off centre, so mistracking is corrected before it grows.
Low friction
Prime Tracker guides the belt back to centre with very low friction and small forces, so the belt edge is not strained during correction.
Reverse running
The idler also works on lines running in reverse.
Low maintenance
Prime Tracker needs little maintenance and is made from materials that withstand harsh operating conditions.
Easy installation
The idler is fitted quickly and is ready for use in a short time.
How does it work?
- Passive positionPrime Tracker does not act while the belt runs true.
- Detecting mistrackingThe idler responds when the belt moves slightly off centre.
- Centring the beltThe idler guides the belt back to centre with low friction and little force.
Benefits
- Easy to install and quickly ready for use
- Low-maintenance design
- Made from materials that withstand harsh operating conditions
- Can be used on lines running in reverse
- Keeps the belt centred on the return strand
- Less spillage at transfer points when used with AirScrape
- Avoids unnecessary wear
- Lower risk of belt damage at low cost
- Fewer belt repairs and less costly downtime
Applications
Return strand
Prime Tracker guides the belt back to centre on the return strand, where mistracking damages the edges.
Lines with AirScrape
Used together with AirScrape, Prime Tracker reduces spillage at transfer points.
Reversing lines
Prime Tracker is also used on lines running in reverse.
Recommended for
Used together with
AirScrapeUsed together with AirScrape, spillage at transfer points is reduced, while Prime Tracker keeps the belt centred on the return strand.
SureSupport impact bedSealing, belt support and tracking are considered together when addressing spillage at the loading point; the SureSupport impact bed reduces impact under the belt.
Technical information
- Operating principle
- Acts when the belt moves off centre
- Reverse running
- Suitable
- Maintenance
- Low maintenance
- Position
- Return strand
Place on the line
Return strand
Mistracking (the belt running off to one side) damages the belt edges; material that falls onto the inner face of the return belt can get into the tail pulley and idlers.
Related problems
Supporting services
Frequently asked questions
For questions specific to your line, you can contact our technical team.
What is Prime Tracker belt tracking idler?
Can Prime Tracker be used on lines running in reverse?
When does Prime Tracker act?
How does Prime Tracker differ from conventional guiding systems?
Does Prime Tracker need maintenance?
Can Prime Tracker be used together with AirScrape?
Why does belt tracking matter?
Where on a conveyor line is Prime Tracker belt tracking idler used?
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