The Chicago Pneumatic QRS7.5HP-3 is a 7.5 HP rotary screw compressor built for continuous-duty applications and equipped with a 208-230/460V three-phase dual-voltage motor. It delivers 21.2 CFM at 150 PSI, operates at 100% duty, and combines an oil-injected rotary screw airend with a 60-gallon horizontal receiver. The dual-voltage configuration is the key advantage: the same compressor can be connected to either 208-230V or 460V three-phase service, giving facilities more flexibility when installing the machine or moving it to a different location. Chicago Pneumatic's rotary screw range is built in Italy through Atlas Copco. Note: the published information conflicts on whether a dryer is included and whether maximum pressure is 150 or 145 PSI, so confirm both details before ordering.
The 100% duty rating allows the screw airend to operate continuously while the shop is drawing air, without the run-time limitations associated with piston compressors. That matters in busy facilities where pneumatic tools may be working for extended periods and pressure recovery cannot become part of the workflow. The three-phase motor also provides a smooth power delivery suited to continuous operation, while the 64 dBA sound rating makes the compressor practical for indoor workshop environments where excessive noise would be a problem. The 60-gallon receiver provides stored air to help accommodate changes in demand between the compressor and the tools using the system.
This QRS7.5HP-3 is a good fit for multi-bay automotive shops, light industrial facilities, manufacturing operations, and businesses with three-phase electrical service that need dependable compressed air throughout the workday. Its dual-voltage motor is particularly useful for facilities that may operate on different three-phase voltages between locations or anticipate an electrical upgrade. Before planning downstream air treatment, however, verify whether the specific unit includes the integrated dryer, since the published product information gives conflicting answers.
Specifications
| Output and pressure |
|
| Rated flow |
21.2 CFM at 150 psi |
| Maximum pressure (feature list) |
150 psi |
| Maximum pressure (specification field) |
145 PSI — confirm before you order; see the note above |
| Duty cycle |
100% |
| Motor and supply |
|
| Rated power |
7.5 HP |
| Supply |
208-230/460V, dual voltage |
| Phase |
3 Phase |
| Magnetic starter |
Fitted |
| Tank, size and noise |
|
| Receiver |
60 Gallon, horizontal |
| Tank outlet |
1/2" |
| Overall length |
75" |
| Weight |
441 lbs |
| Noise |
64 dBA |
| Air dryer |
To be confirmed — see above |
| Electronic drain valve |
Not fitted |
No electronic drain means condensate is drained by hand on a schedule somebody keeps. Water left standing in a receiver is the usual reason a good tank does not reach its second decade.
Approvals, Stated Plainly
This product's data does not list a third-party safety certification for the complete packaged compressor. We will not imply otherwise. The available documentation covers the manufacturer's specifications and factory commissioning program.
If your insurer, fleet or facility standard, or local authority requires independent listing documentation for hard-wired equipment, contact us before ordering. We will confirm exactly what documentation is available for this model.
Shipping & Delivery
Ships by palletized freight to the lower 48 states, with shipping quoted live at checkout based on your delivery address.
At 441 lbs, plan for a forklift, loading dock or pallet jack on level ground. Terminal pickup is an alternative if unloading equipment is unavailable. Residential deliveries may incur an additional fee.
Inspect the shipment before signing. Check the enclosure, receiver, control panel and fittings with the driver present. Record any damage or shortages on the bill of lading and take photographs before accepting the shipment.
Warranty
The standard warranty is 1 year, with a 5-Year warranty available when the machine receives a factory-authorized start-up, with a typical commissioning fee of $350.
The $350 fee is an indication, not a fixed price, and is charged by the commissioning provider. Confirm the current cost before ordering. Professional commissioning also verifies key operating conditions such as rotation direction, oil level and control settings.
If a fault occurs, stop and isolate the compressor before contacting us. Do not open or disassemble the airend before a warranty claim is evaluated. Photograph the condition and keep the machine assembled until instructed otherwise.
