Shutdown work can create a temporary spike in compressed-air demand while the permanent plant is offline. A good hire plan separates tool demand, process demand and contingency capacity before equipment arrives.
Key points
- Book early for major shutdown windows
- Map loads by work area
- Allow for hose distribution and manifolds
- Plan backup capacity for critical tasks
Treat shutdown air as temporary infrastructure
A shutdown may create unusual simultaneous demand from maintenance contractors while parts of the permanent plant are isolated. Build a load list by work area and schedule, then decide whether one central compressor or several distributed units make more sense.
Book critical hire equipment early when possible. Major shutdown windows can concentrate demand for the same classes of compressors, dryers and accessories.
How to specify the job
Start with the equipment or process that will consume the air. Record the number of tools that may run at the same time, each tool's required airflow, and the highest operating pressure. For industrial temporary-air jobs, also note required air quality, duty cycle, connection size and whether the process can tolerate interruption.
Airflow, pressure and operating margin
Compressor capacity is usually described by airflow and pressure. In Australia you will commonly see airflow in CFM or m³/min and pressure in PSI or bar. The compressor must meet both requirements at the point of use. Long hose runs, fittings, filters and simultaneous demand can reduce effective performance, so a practical sizing margin is useful.
What to ask the hire supplier
Machine
Confirm rated free-air delivery, working pressure, fuel or electrical requirements and whether the exact model may vary.
Accessories
Ask about hoses, manifolds, aftercoolers, dryers, filtration, receivers, fittings and any tool-specific accessories.
Logistics
Confirm towing or delivery, access, placement, refuelling, collection, operating hours and any site induction requirements.
Safety
Follow the supplier's risk assessment and operating manual. Verify hose, coupling and accessory pressure ratings.
Use the sizing calculator
If your application is based on pneumatic tools, our calculator can total approximate airflow and suggest a compressor class. It is a planning tool only; final selection should be confirmed against the actual equipment specifications.
Open compressor calculator