Cocoa Conveyor Belt: Beans, Nibs, Fat and Sticky Carryback
Cocoa arrives at a belt as a dry bean and leaves it as something closer to paste, and the change happens while the product is on the belt. Roasting drives fat to the surface, breaking releases nib and husk, and winnowing throws a fine dust that settles on every surface. The result is a cover that turns tacky, a return side that carries product back, and a cleaning problem that cannot be solved with water alone. This guide follows the bean through cleaning, roasting, breaking and winnowing to the point where grinding takes over. It separates fat from heat and from husk dust, because each needs a different answer, and it treats flavour carryover as a quality issue rather than a housekeeping one. Later sections cover material choice, inclines and fragile product, dry cleaning before wet, tracking in a warm plant, and the checks to settle before a cocoa line starts.
Rendering Conveyor Belt: Heat, Grease and Bone Fragments
A rendering plant is not a food line with the hygiene switched off. It is a hot, wet, greasy process that turns by-products into meal and tallow, and it punishes a belt in ways a cutting floor never does. Fat softens a cover that was specified for abrasion, bone and tramp metal cut it, and condensate from warm wet air finds every cut edge. This guide follows the sequence from reception through crushing, cooking, pressing and drying, and treats each stage as a separate duty rather than one generic heavy load. It explains why carryback on the return side becomes a fire and housekeeping problem, why a food-grade claim does not automatically apply here and what to specify instead, how inclines and transfer points concentrate damage, and how to clean a line that stays warm all day. It closes with tracking under uneven load and the acceptance checks to settle before a restart.
Gypsum Conveyor Belt: Stucco, Board Lines and Moisture
A gypsum conveyor belt works in a line that looks like a board plant and behaves nothing like one. Stucco is a powder that sets when it meets water, so the belt must release a wet slurry board without tearing it and without holding set material on the cover. Downstream, the dryer brings heat and steam, and the saw and trim stations bring a fine dust that packs into every gap. This guide separates gypsum from wood-based panel lines, then follows the sequence from calcination to stacking. It covers release and grip as competing requirements, why stucco dust is a setting problem rather than a cleaning problem, how board edges and knives damage a cover, and how heat and steam in the dryer shorten its life. Later sections cover splice and tracking on a board line, transfer and surface protection, cleaning between product changes, and the checks to settle before a line starts.
Lime Conveyor Belt: Quicklime Heat, Dust and Abrasion
A lime conveyor belt meets its hardest conditions in the first few metres after the kiln, where hot quicklime arrives with fine alkaline dust and no warning. Cement is not the same duty: clinker cools before it travels far, while lime can leave the kiln and reach the belt almost immediately. This guide keeps that distinction at the centre. It separates quicklime, hydrated lime and milk of lime as three duties with different temperature, moisture and dust behaviour, then follows each failure: heat that shortens cover life, alkaline dust that attacks the cut edge, hard fines that grind the cover, and splices that open under repeated heat cycles. It closes with transfer points, dry cleaning rather than washdown, and the acceptance checks and spares a lime plant should hold before a shutdown.
Salt Conveyor Belt: Hygroscopic Load, Corrosion and Washdown
A salt conveyor belt is rarely destroyed by load; it is destroyed by water and chloride. Salt pulls moisture from the air, cakes on the cover, and leaves a brine film that reaches the cut edge and the splice, where a textile carcass has no protection at all. This guide follows that path rather than a generic material list. It separates food salt, industrial salt and de-icing salt, because the same mineral arrives with different moisture, contamination and hygiene expectations. It explains why crystallisation on idlers and return rollers is an early warning rather than a housekeeping detail, how hard crystals and tramp material cut a cover, and why a food-grade claim changes the cover, the splice and the cleaning method at the same time. Later sections cover washdown and drainage, inclines and transfer points, tracking a belt whose surface is never dry, and the checks worth completing before a salt line restarts.
Malt Conveyor Belt: Steeped Grain, Sticky Slurry and Malting Hygiene
A malt conveyor belt handles a load that is alive when it arrives and dead by the time it leaves. Steeped barley carries surface water and sugar, germinating grain throws rootlets that wrap around anything rotating, and kilned malt arrives hot, dry and dusty within a few metres of the same frame. This guide follows the malting sequence, because the belt requirements change at every step. It covers water and adhesion from steeping to germination, the kiln section where heat and moisture shorten cover life, the debris that collects on idlers and return rollers, and the difference between carryback that a scraper removes and residue that only a washdown removes. A separate section defines where this page stops and the downstream filling and packaging line begins, with a link to that guide. Later sections cover hygiene design, surface choice, gentle handling of the kernel, tracking of light loads, transfers and silo dust, and the checks to settle before a season starts.
