A thickener, flotation cell preventive maintenance schedule lists the checks and jobs done on the equipment at fixed intervals, how long each takes, and in what order of frequency, so problems are found before the thickener, flotation cell fails. This page gives the schedule used in the PlantOps360 task library for thickener, flotation cell (, hydrocyclone and slurry pumps (mineral processing), which follows common industry practice for general-purpose equipment. It is also searched for as thickener, flotation cell, hydrocyclone, classifier.
The maker’s manual and your site safety procedures always come first where they differ. Intervals set by law differ by state.
Thickener, flotation cell preventive maintenance schedule and checklist
| How often | Task | Estimated time |
|---|---|---|
| Daily | Check the thickener torque, rake drive and underflow density; check the overflow clarity | 10 min |
| Weekly | Check the flotation cell agitators, froth levels and air supply; check the cyclone wear | 20 min |
| Monthly | Check the gearbox oil and drive of the rake; check the cyclone apex and vortex finder | 45 min |
| Quarterly | Check the impeller and stator wear of the flotation cells; check the launders | 90 min |
| Half-yearly | Check the thickener rake arms and tank condition; replace the worn cyclone liners | 150 min |
| Annual | Annual shutdown inspection of the tanks and rake drive; foundation check | 420 min |
Thickener, flotation cell maintenance frequency and yearly workload
At the estimated times, one thickener, flotation cell needs about 105 hours of preventive maintenance a year. The biggest single job is “Annual shutdown inspection of the tanks and rake drive; foundation check” at 420 minutes, done annual. Multiply by the number of units you have to see the workload for your plant.
| Frequency | Tasks | Time per round | Hours per year |
|---|---|---|---|
| Daily | 1 | 10 min | 60.8 h |
| Weekly | 1 | 20 min | 17.3 h |
| Monthly | 1 | 45 min | 9.0 h |
| Quarterly | 1 | 90 min | 6.0 h |
| Half-yearly | 1 | 150 min | 5.0 h |
| Annual | 1 | 420 min | 7.0 h |
What goes wrong on a thickener, flotation cell without preventive maintenance
- Rake drive overload
- Flotation agitator and froth faults
- Hydrocyclone and slurry pump wear
- Underflow line blockage
What to watch between services
- Thickener torque and underflow density
- Agitator condition and froth level
- Gearbox oil
Safety and statutory notes for thickener, flotation cell maintenance
Raised rakes and buried drives are a serious risk. Follow the procedure for torque trips and do not approach a stuck rake without isolation.
Where a thickener, flotation cell preventive maintenance schedule is used
This equipment is used in the industries below. Each link opens the preventive maintenance schedule guide for that industry, and the maintenance software page where we have one.
- Preventive maintenance schedule for steel, foundry, forging and metal plants · maintenance software for steel and metals
- Preventive maintenance schedule for mines and mineral processing plants · maintenance software for mining
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Browse the full list of equipment preventive maintenance schedules (317 types).
Run this thickener, flotation cell schedule in maintenance software
In preventive maintenance software, each row above becomes a recurring task on the asset with its checklist, time estimate and parts. Tasks can be triggered by calendar date, running hours, meter readings or production cycles, each completed task is recorded with the person and date, and a failed check can open a work order. For the method behind it, read the guide to the preventive maintenance schedule, or use the free generator to get a 12-month plan for your whole equipment list.
Build my preventive maintenance schedule (free Excel)
Frequently asked questions
How often should a thickener, flotation cell be serviced?
In our schedule a thickener, flotation cell has 6 tasks: 1 daily, 1 weekly, 1 monthly, 1 quarterly, 1 half-yearly, 1 annual. The biggest job is “Annual shutdown inspection of the tanks and rake drive; foundation check”, which is done annual. Always follow the maker’s manual where it gives a different interval.
What is included in thickener, flotation cell preventive maintenance?
It covers routine checks and jobs such as “Check the thickener torque, rake drive and underflow density; check the overflow clarity”, “Check the flotation cell agitators, froth levels and air supply; check the cyclone wear”, “Check the gearbox oil and drive of the rake; check the cyclone apex and vortex finder”, up to the annual overhaul or inspection. The full list with times is in the table above.
How many hours of maintenance does a thickener, flotation cell need per year?
About 105 hours per unit per year at the estimated times in our library, including the daily checks done every day. Use it to plan workload, not as a benchmark.
Is there a free thickener, flotation cell maintenance checklist?
Yes. The table on this page is a ready checklist. The free preventive maintenance schedule generator turns it into a 12-month Excel schedule for your list of equipment, with monthly workload hours.