You’ve seen it. Material on the walkways, dust hanging in the air, your crew running cleanup instead of running production. It’s easy to chalk up conveyor spillage to just part of the job.
It’s not. Carryback and spillage are symptoms of a containment problem — and that problem compounds fast.
Here’s what’s actually happening when material leaves the belt.
It’s Not Just a Mess — It’s a Chain Reaction
Carryback is the material that sticks to the belt after the discharge point and gets carried back through the return run. It falls off along the way, collects under the system, and builds up on idlers and structural components.
That buildup does damage. Idlers caked with material run out of round, which accelerates belt wear. Return-side buildup throws off belt tracking, which causes edge damage and premature splice failure. And every hour your maintenance crew spends cleaning is an hour they’re not doing planned work.
Then there’s MSHA. Material on conveyor walkways is a violation. If you’re running aggregate, mining, or any application subject to inspection, spillage isn’t just a maintenance issue — it’s a compliance issue.
Where Containment Breaks Down
Most conveyor systems don’t fail at containment because of one thing. It’s usually a combination:
- Worn or poorly tensioned belt cleaners — Primary and secondary cleaners that aren’t making proper blade contact aren’t cleaning. A cleaner that looks fine visually can still be letting material through if blade pressure or angle is off.
- Failed skirting at the load zone — This is where most spillage starts. If the skirt rubber is worn, stiff, or improperly clamped, material escapes at the transfer point before the belt even gets going.
- Wrong pulley design for the application — Standard flat pulleys in high-carryback applications allow material to accumulate and pack. That buildup throws off belt tracking and eventually causes damage on both sides of the system.
- Belt tracking issues — A belt that wanders — even slightly — spills at every transition point. Tracking problems and containment problems almost always show up together.
The Products That Actually Fix It
Binkelman carries the components that address each part of the containment problem. More importantly, we install and maintain them.
Flexco Heavy-Duty Belt Cleaners — Primary and secondary cleaners built for real aggregate and industrial applications. Not just the right product, but properly installed and tensioned for your belt speed, material, and pulley diameter. An improperly installed cleaner is barely better than no cleaner at all.
Flexco Skirting Systems — Skirt rubber, clamp systems, and impact beds that seal the load zone and contain material at the transfer point. Properly installed skirting prevents spillage before it starts.
Martin Clean Flight Pulleys — Continuous wing pulley design that sheds material from the pulley face on the return run. Instead of material packing between belt and pulley, it falls through the wing profile. Less buildup means better tracking and a cleaner return run.
PPI Wing and Herringbone Pulleys — PPI’s continuous wing and herringbone designs serve the same function: material passes through rather than packing on the pulley. The right choice depends on your belt speed, material characteristics, and system design — Binkelman can help you spec it correctly.
PPI Slider Beds and Training Idlers — When tracking is the root cause of your spillage, training idlers address the problem at the source. Slider beds reduce the gap at transition points where material can escape.
Elevate PDM — Remote monitoring for your belt cleaners. Elevate tracks blade performance and alerts you when a cleaner stops doing its job — before the carryback shows up on the walkway.
Why Installation and Maintenance Matter as Much as the Product
The right product, installed wrong, doesn’t solve the problem. A primary cleaner that’s correctly specified but installed at the wrong angle won’t make proper blade contact. Skirting that’s tensioned too tight will wear through in weeks.
Binkelman’s service team installs and maintains all of the components above. We also do containment surveys — walking your system, identifying where material is escaping, and giving you a clear picture of what it would take to fix it. No guesswork.
If your cleaners are on a maintenance program with Elevate monitoring, you’ll know the moment blade wear starts affecting performance. That’s the difference between scheduled maintenance and emergency cleanup.
Start with a Containment Survey
Not sure where to start? Binkelman’s team will walk your conveyor system, identify where material is escaping, and come back with a specific set of recommendations.
Three locations ready to support you: Bowling Green, Piqua, and Saginaw.
Call 1-800-862-4673 or visit binkelman.com to schedule a containment survey.