A compressed air dryer (desiccant) 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 compressed air dryer (desiccant) fails. This page gives the schedule used in the PlantOps360 task library for compressed air dryer (desiccant) (/ adsorption), which follows common industry practice for general-purpose equipment. It is also searched for as desiccant dryer, adsorption dryer, heatless dryer, heat of compression dryer.
The maker’s manual and your site safety procedures always come first where they differ. Intervals set by law differ by state.
Compressed air dryer (desiccant) preventive maintenance schedule and checklist
| How often | Task | Estimated time |
|---|---|---|
| Daily | Check dew point indication, tower switching and purge exhaust | 3 min |
| Weekly | Check pressure drop across towers and pre/after filters; check purge flow | 10 min |
| Monthly | Drain filters and check solenoid or switching valves for sticking | 15 min |
| Quarterly | Check silencers, check valves and inlet and outlet valves | 30 min |
| Half-yearly | Replace pre-filter and after-filter elements | 60 min |
| Annual | Replace desiccant as indicated by dew point or OEM interval; service valves | 240 min |
Compressed air dryer (desiccant) maintenance frequency and yearly workload
At the estimated times, one compressed air dryer (desiccant) needs about 38 hours of preventive maintenance a year. The biggest single job is “Replace desiccant as indicated by dew point or OEM interval; service valves” at 240 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 | 3 min | 18.3 h |
| Weekly | 1 | 10 min | 8.7 h |
| Monthly | 1 | 15 min | 3.0 h |
| Quarterly | 1 | 30 min | 2.0 h |
| Half-yearly | 1 | 60 min | 2.0 h |
| Annual | 1 | 240 min | 4.0 h |
What goes wrong on a compressed air dryer (desiccant) without preventive maintenance
- Desiccant breakdown into dust
- Switching valve or solenoid faults
- Purge flow set wrongly
- Pre-filter failure that oils the desiccant
What to watch between services
- Dew point at the outlet
- Pressure drop across the towers
- Tower switching and purge function
Safety and statutory notes for compressed air dryer (desiccant) maintenance
Desiccant dust can be harmful. Use the correct PPE when changing it and dispose of used desiccant as the supplier advises.
Where a compressed air dryer (desiccant) 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 automotive plants · maintenance software for automotive
- Preventive maintenance schedule for electronics manufacturing plants · maintenance software for electronics
- Preventive maintenance schedule for pharmaceutical plants · maintenance software for pharmaceutical · maintenance software for api bulk drugs
- Preventive maintenance schedule for chemical, fertiliser and petrochemical plants · maintenance software for chemical
- Preventive maintenance schedule for food, dairy and beverage plants · maintenance software for food processing · maintenance software for dairy
- Preventive maintenance schedule for fmcg and consumer goods plants · maintenance software for fmcg
- Preventive maintenance schedule for packaging, paper and printing plants · maintenance software for packaging · maintenance software for paper and pulp
- Preventive maintenance schedule for plastics, rubber and polymer plants · maintenance software for plastics · maintenance software for tyre and rubber
- Preventive maintenance schedule for textile and garment mills · maintenance software for textile
- Preventive maintenance schedule for steel, foundry, forging and metal plants · maintenance software for steel and metals
- Preventive maintenance schedule for oil, gas and refinery facilities · maintenance software for oil and gas
- Preventive maintenance schedule for hospitals and healthcare facilities
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Browse the full list of equipment preventive maintenance schedules (317 types).
Run this compressed air dryer (desiccant) 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 compressed air dryer (desiccant) be serviced?
In our schedule a compressed air dryer (desiccant) has 6 tasks: 1 daily, 1 weekly, 1 monthly, 1 quarterly, 1 half-yearly, 1 annual. The biggest job is “Replace desiccant as indicated by dew point or OEM interval; service valves”, which is done annual. Always follow the maker’s manual where it gives a different interval.
What is included in compressed air dryer (desiccant) preventive maintenance?
It covers routine checks and jobs such as “Check dew point indication, tower switching and purge exhaust”, “Check pressure drop across towers and pre/after filters; check purge flow”, “Drain filters and check solenoid or switching valves for sticking”, up to the annual overhaul or inspection. The full list with times is in the table above.
How many hours of maintenance does a compressed air dryer (desiccant) need per year?
About 38 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 compressed air dryer (desiccant) 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.