You might get a better response in the Trough Belt Conveying forum.

https://forum.bulk-online.com/forumd....php?forumid=9

You can look at Tru Trac trainers - I have used them with much success but not in the temperature extreme like the oil sands of Alberta though.

http://www.tru-trac.com/troughtracker.htm

Canadian Distributor is

[http://www.wilattconveyors.com/belt-tracking/index.html ■

The key is the central pivot and the tapered ends of the center roll.

C&P from their website.

"The Tru-Trainer reacts as the belt tracker moves off center it will contact the tapered section of the roller on that side of the conveyor belt. The effect of this will be to force the roller to rotate on its central pivot causing the belt to come back to its original position (centered)."

In other words it will be constantly trying to center the belt. ■

Hello Diana,

Away from pulley terminal, only idlers are in contact with belt. Therefore, aligning (shifting) force can only be created by idlers. In context of engineering rules, such action can be created by utilising following means / options :

1) Idlers set or rollers placement skew in horizontal plane (i.e. roller/s axis not exactly along belt width). Such situation can have varied commercial names such as pivoted idlers or idler with forward tilt etc.

2) Idler set or roller/s placement skew in vertical plane. The aligning / shifting force can arise by gravity or belt tension component exerting force on idler-up placement. This statement applies to trough shape or entire idler place like “road / rail banking”. This can also have different names. Gravity or other force finally creates aligning action through idlers only.

3) Relative small difference in roller diameter (tapering / expanding diameter at particular location). Such roller would result in to push / pull force along belt length in certain zone at that location, due to introduction of certain degree of sliding motion of belt on roller, and consequent lateral shifting force.

Serial no.1 and 2 are extensively used.

The presence of some shifting force does not always imply occurrence of actual alignment. Such end result depends upon magnitude of opposing frictional resistance due to total grip of belt on idlers and belt tension component that would oppose belt shifting.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Author of Book : Belt Feeder Design and Hopper Bin Silo

Advisor / Consultant for Bulk Material Handling System & Issues.

Email : parimul@pn2.vsnl.net.in

Tel.: 0091 (0)20 25871916 ■

Hi All,

With all due respect to those that manufacture tracking idlers, if you don't address root cause issues that are creating the tracking problems they, the tracking idlers, invariably become maintenance issues themselves. It has been my experience that they should only be used on low tension belts and in low tension areas and then only for insurance purposes. I have some papers on simple procedures to identify the root cause of tracking problems if you are interested (email: colin.benjamin@gcsm.com.au).

Colin Benjamin

Gulf Conveyor Systems Pty Ltd ■

Hello,

See that you are looking for Belt trackers,

Take a look at the website www.technitrack.no

We are probably the most experienced trackercompany worldwide.

Tracking a belt without side/guiderollers are difficult if you want full control and our trackers have proven their function in almost all kind of temperatures and environments.

Regards

Harry Holtar ■

Hello,

Sorry saw that I made a mistake regarding the web address the correct address is

www.technotrack.no

Regards

Harry Holtar ■

Originally Posted by I G Mulani

Hello Diana,

Away from pulley terminal, only idlers are in contact with belt. Therefore, aligning (shifting) force can only be created by idlers. In context of engineering rules, such action can be created by utilising following means / options :

1) Idlers set or rollers placement skew in horizontal plane (i.e. roller/s axis not exactly along belt width). Such situation can have varied commercial names such as pivoted idlers or idler with forward tilt etc.

2) Idler set or roller/s placement skew in vertical plane. The aligning / shifting force can arise by gravity or belt tension component exerting force on idler-up placement. This statement applies to trough shape or entire idler place like “road / rail banking”. This can also have different names. Gravity or other force finally creates aligning action through idlers only.

3) Relative small difference in roller diameter (tapering / expanding diameter at particular location). Such roller would result in to push / pull force along belt length in certain zone at that location, due to introduction of certain degree of sliding motion of belt on roller, and consequent lateral shifting force.

Serial no.1 and 2 are extensively used.

The presence of some shifting force does not always imply occurrence of actual alignment. Such end result depends upon magnitude of opposing frictional resistance due to total grip of belt on idlers and belt tension component that would oppose belt shifting.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Author of Book : Belt Feeder Design and Hopper Bin Silo

Advisor / Consultant for Bulk Material Handling System & Issues.

Email : parimul@pn2.vsnl.net.in

Tel.: 0091 (0)20 25871916

I am not clear about the serial number 2. Can this be used at places like vertical take ups?

If somebody attaches photo of this type will be helpful.

Thank you. ■