ACS EC-5 Two-Stage Air Compressor Pump, 5 HP, 17 CFM at 175 PSI
The EC-5 is the 5 HP pump in the ACS E Series, a slow-turning cast-iron two-stage built for stationary shop duty. At 700 RPM it runs cool, quiet and long, which is the whole argument for a slow-speed pump: the same 17 CFM that a high-speed pump makes at 1200 RPM comes out of this one with far less ring and bearing wear. Inserted connecting rods mean the rod bearings are serviceable rather than disposable.
Key specifications
- Horsepower: 5 HP
- Delivery: 17 CFM at 175 PSI
- Speed: 700 RPM, slow speed
- Stages and cylinders: 2 stage, 2 cylinder
- Construction: cast iron
- Connecting rods: inserted
- Unloading: centrifugal on the EC-5, head unloading on the EC-5U
- Motor frame: suitable for 184T frame motors
- Weight: 240 lb (EC-5), 245 lb (EC-5U)
Which unloading do you need
Take the standard EC-5 for ordinary start-stop operation, where the pressure switch kills the motor at cut-out and the centrifugal unloader bleeds the head so the motor restarts unloaded. Take the EC-5U if the machine runs constant-run or dual control, or if it is engine driven. Those setups never stop the pump, so the head unloaders have to open and let it freewheel against no pressure. Putting a centrifugal-unload pump on a constant-run or engine application will cook it.
Service notes
Two-stage pumps throw real heat at the intercooler, so keep the cooler and the flywheel fins clean and the belt guard airflow clear. Change the oil on the manufacturer's interval and keep the intake filter fresh, because dust is what kills slow-speed cast-iron pumps long before hours do.
Typical applications
Stationary shop compressors, automotive and fleet service bays, fabrication and welding shops, farm and agricultural air, and as a replacement pump on any 5 HP 175 PSI two-stage package taking a 184T frame motor.
The ACS EC-5 two-stage air compressor pump delivers 17 CFM at 175 PSI on 5 HP, in slow-speed cast iron at 700 RPM, with centrifugal or head unloading.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
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