Champion · HR Duplex · TWO-STAGE PISTON

HR7D-24

7.50 HP · Horizontal · electric · oil-free · 2-stage
AVERAGE PRICE
$14,629
3 retailers · in stock

Champion HR7D-24 is a 7.5 HP duplex two-stage reciprocating industrial air compressor delivering 25.6 SCFM at 175 PSI on a 240-gallon horizontal tank, wired 208V, oil-free cylinder design, weighing 1,675 lbs. Part of Champion’s HR Duplex series, pairs two R-30 pump-motor sets for sustained high-demand production air. ASME-certified tank, 1-inch NPT air outlet, 1,750 RPM motor. Operating temperature 40-104 deg F; manual ball-valve drain. Made in USA. Price verified at $14,300 (Aircompressorcfm.com, 2026-05-22). The 240-gallon receiver reduces starts per hour in tire-shop, fleet-service, and industrial assembly environments.

HP
7.50
CFM
51.2 @ 175 PSI
Duty
continuous
Tank size
240 gal
Air output per horsepowerAirflow per motor HP
6.83CFM/HP
Poor 2.8Typical 3.15Good 3.5
Isentropic efficiencyClass median · 2-stage piston
67%
Poor <50Good 70Best 92
Price per cubic foot · minuteVerified retailer price
$279$/SCFM
Good $180Typical $211High $260
PUMP & DRIVE
Stages2-stage recip
Cylinder
Pump RPM570 rpm
Lubricationoil-free
Oil
Sump
Pump life
Pump material
Head material
Intercooler
PERFORMANCE
Catalog CFM51.2 @ 175 PSI
CFM / HP6.83
Cut-in / out
Tank fill
Est. draw6.6 kW
COST & MAINTENANCE
Compressor Controller ROI calc · $0.14/kWh · 1920 hr/yr · 70% motor efficiency · HP×1.10 sizing · savings 23–42% of electric
Electric · yearlyEst. $2,363
Maintenance · yearlyEst. $188
Savings with Compressor Controller · yearlyEst. $544–$993
ELECTRICAL & FORM
Serviceelectric
Voltage208
Amps
Motor
Motor RPM1750 rpm
Control
Starter
Weight1675 lb
FormHorizontal · 240 gal
BUILD & ENVIRONMENT
Air outlet1 in NPT
DrainManual ball valve standard
Drain outlet
ASME tankYes
Made in USAYes
Noise
Op. temp40–104 °F
Dimensions
Ship weight
Warranty

Where this sits in the catalog

Histograms below: highlighted bar marks this unit’s bucket.

Catalog
1655 units
Peer class
181 · 7.5 HP
Sizing & pricevs. 181 in class
  • SCFM @ 7.5 HP51.2cfm
    20median 2457
    +113.3% vs. median
  • Average price$14,629
    $1,698median $5,117$19k
    +185.9% vs. median
Efficiency vs. peersvs. 181 in class
  • CFM per HP6.83cfm/hp
    2.67median 3.27.65
    +113.3% vs. median
  • Price per CFM$279$/scfm
    $73median $208$632
    +33.7% vs. median

Price history

Showing the current verified price for each retailer. As the price-tracking worker collects new readings, dots will appear along each line.

$14,261$14,451$14,642$14,832avg $14,547today-10d-20d-30d
Aircompressorcfm
alltiresupply.com
Champion
Champion