Most plants do not have a written cleaning standard for their conveyors. The belt line gets washed when someone notices grease build-up, usually during a shutdown weekend, and the crew improvises with whatever hose, brush and drum of detergent is in the maintenance store. That approach works until the line is needed back on schedule, the floor becomes a slip hazard, or a food-safety auditor asks how the belt behind the drive unit is cleaned without removing it. This article walks through the equipment a factory actually needs to clean conveyors — what is on the belt itself, what the drive and tail end carry, and which cleaning tools match each job.
Start with the conveyor, not the cleaning machine
Conveyor soiling splits into three groups, and each one rules out some tools.
- Product residue on the belt surface — food crumbs, sugar, dough, packaging film dust, paper fines. Usually loose, sometimes sticky. A brush plus low-pressure rinse removes most of it.
- Lubricant and hydraulic oil on the frame, rollers and drive unit — chain grease, gearbox seepage, dropped oil from a lift or cylinder. This is what a cold water hose will not shift.
- Fine dust inside the profile of the belt — powder, grain dust, abrasive mineral dust that sits between cleats and in the hinge joints of a modular plastic belt. Brushing the top surface tells you nothing; the dirt is in the seams.
Before buying any equipment, walk the line and note where the mess sits, what the belt material is, whether the electrical enclosures and bearing housings can get wet, and how long the line can be stopped. Those four answers determine whether you need a pressure washer, a steam machine, a vacuum, or a combination.
Core equipment for conveyor cleaning
1. Industrial steam cleaning equipment for the drive end and oily parts
Chain drives, sprockets, gearboxes, take-up units and the frame under the belt collect the hardest deposits on any conveyor. Grease that has baked on with dust behaves like paint and needs heat, not volume. Industrial steam cleaning equipment produces steam at high temperature and delivers it through a lance at pressure, so a small amount of water does the work that a hose would need many litres to attempt. For a factory that runs cleaning during a short break rather than a full wash-down window, the low water volume matters: the line drains quickly and can be restarted sooner.
A fixed unit on wheels is the practical form for this task. The Fixed Steam Cleaning Machine PowerDe HW02 is a 220 V machine built around an 80 L stainless tank, with dry and wet steam modes and an integrated vacuum. Dry steam suits greasy surfaces where you want heat with minimal moisture; wet steam adds water to flush the lifted residue away. The manufacturer lists protection against leakage, short circuit, high temperature, high voltage and water shortage on this class of machine — worth checking in your own plant's terms, because a machine working next to a conveyor's motor and control cabinet has to meet your electrical safety rules.
Two points to verify with the supplier before you specify steam on a conveyor: the actual steam temperature and pressure at the nozzle for your duty, and the runtime per fill for the tank size you are considering. The published data sheet for a given model is the place to check, not a generic catalogue claim.
2. A vacuum system for dry dust in belt profiles and under the line
Where the residue is dry and loose, water is the wrong first move — it turns dust into paste in the hinge joints. A vacuum cleaning system rated for the dust type, used with a crevice tool along the belt profile and under the return side, keeps the material dry and recoverable. In food and feed plants this also matters for cross-contamination: vacuuming before wash-down stops dust from being flushed into floor drains and onto neighbouring equipment.
Match the vacuum to the dust. Fine abrasive dust needs filtration sized for the particle; combustible dust needs a machine specified for that risk. Do not run a general workshop vacuum on metal fines, flour dust or mineral powder without checking the rating.
3. Brushes and belt-side tooling
Rotary belt cleaners and scraper blades are the standard production-side fitment for keeping bulk material off the return belt; they are maintenance hardware, not cleaning equipment, and they do not remove baked-on grease. For a scheduled clean, hand brushes in stiff and soft grades, plus a long-handled brush for the underside of the frame, cover the shapes a lance cannot reach. Choose brush stiffness against the belt covering: a rubber or PVC belt tolerates a stiffer brush than a fabric or PU belt that will score.
4. Water recovery and floor control
The wash water off a conveyor carries grease, product fines and detergent. Unless your plant has a drain and an oil separator positioned for wash-down, plan a squeegee, a wet vacuum and a containment boundary around the cleaning area. This is the item most often missing from the equipment list, and it is the one that gets the job postponed.
A workable sequence for cleaning a conveyor line
- Isolate the line at the local disconnect, not just at the control panel, and put the isolation tag on the box the crew can see.
- Mask or close off motor fan covers, bearing housings, junction boxes and sensors before any water or steam goes on the machine.
- Dry-clean first: vacuum loose product and dust off the belt profile, the frame and under the return side.
- Apply heat to the oily parts — chain, sprockets, frame, drive unit — with dry steam, then brush the softened grease.
- Switch to wet steam or a low-pressure rinse to flush the lifted residue, working from the top of the frame down to the floor.
- Recover the water, dry the walkways, then remove the masking and check that no cover or sensor was left obstructed.
- Run the line empty for a short period under observation before putting product back on the belt.
Write the sequence down once as a standard work sheet with the equipment list attached, and the cleaning stops depending on who happens to be on shift. Record the date, the section cleaned and the crew, so an audit question about conveyor hygiene has an answer other than "we do clean it".
Choosing the machine: questions to put to the supplier
- What steam temperature and pressure does the unit deliver at the nozzle, and is it documented on the data sheet?
- What is the tank capacity and the duty cycle — how much steam can one operator draw before a refill and a heat-up?
- Does the unit need a water inlet, and can it run on the tap water in your plant, or does it need treated water to protect the boiler?
- Is the supply voltage compatible with your workshop sockets, and are the safety protections listed on the data sheet suitable for wash-down environments?
- Can the supplier configure the machine for your application — lance, hose length, tank size — rather than only shipping a standard catalogue unit?
If the line layout means the machine has to travel between bays, a mobile unit on wheels with handles beats a stationary skid every time. If several lines are cleaned in the same window, compare refill and heat-up time against the length of that window — that number, not the nameplate power, decides how much cleaning one operator can finish.
When the standard machine is not enough
Long lines, lines that cannot be removed from service, and lines with product-contact surfaces under a hygiene scheme push you towards a purpose-built solution: a cleaning unit integrated with the line layout, a fixed lance arrangement, or an enclosure that contains the wash water. Shenzhen PowerDe Automation Precision Equipment works on customized steam cleaning equipment alongside its standard machines, and takes on the engineering work around it — development, hardware testing and manufacturing automation — where a factory needs a cleaning step designed into the production line instead of bolted onto it afterwards.
For a first machine, most factories need one heat-based unit for grease, one vacuum for dust, brushes, and a way to control the water. That list fits through a normal plant doorway, needs no civil work, and can be running on the next shutdown. Start with the drive end and the oily parts, where the difference between steam and a cold hose is obvious on the first pass, and build the standard from there.
