McGraw · SINGLE-STAGE PISTON
🇨🇳Consumer / Prosumer

64858

1.50 HP · Vertical · 120V Electric · oil-less · 1-stage
AVERAGE PRICE
$300
1 retailer
McGraw 64858

McGraw 64858 is a 1.5 HP oil-free direct-drive reciprocating piston compressor delivering 4 SCFM at 90 PSI on a 21-gallon vertical tank, running 120V/14A on a standard 15A branch circuit. Max pressure 175 PSI with cut-in at 135 PSI and cut-out at 175 PSI. Sound output is 77 dB(A). Oil-free pump eliminates maintenance oil changes. Package dimensions 18.5 x 17.75 x 45.5 inches, shipping weight 100.5 lbs. CSA certified. Pump-up time from 0 to 135 PSI is approximately 457 seconds. Regulated outlet max 155 PSI plus or minus 5 PSI. Duty cycle 50%. Distributed by Harbor Freight Tools. Not rated for breathing air per CGA G-7.1. 90-day limited warranty.

HP
1.50
CFM
4 @ 90 PSI
Duty
continuous
Tank size
21 gal
Air output per horsepowerAirflow per motor HP
2.67CFM/HP
Poor 2.8Typical 3.15Good 3.5
Isentropic efficiencyClass median · 1-stage piston
58%
Poor <50Good 70Best 92
Price per cubic foot · minuteVerified retailer price
$75$/SCFM
Good $180Typical $211High $260
PUMP & DRIVE
Stages1-stage recip
Cylinder
Pump RPM
Lubricationoil-less
Oil
Sump
Pump life
Pump material
Head material
Intercooler
PERFORMANCE
Catalog CFM4 @ 90 PSI
CFM / HP2.67
Cut-in / out
Tank fill
Est. draw1.3 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. $473
Maintenance · yearlyEst. $80
Savings with Compressor Controller · yearlyEst. $109–$199
ELECTRICAL & FORM
Service120V Electric
Voltage120V
Amps
Motor
Motor RPM
Control
Starter
Weight88 lb
FormVertical · 21 gal · 225 PSI tank rating
BUILD & ENVIRONMENT
Air outlet1/4″-18 NPT
Drain
Drain outlet
ASME tank
Made in USA
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
11 · 1.5 HP
Sizing & pricevs. 11 in class
  • SCFM @ 1.5 HP4cfm
    3median 5.110
    -21.6% vs. median
  • Average price$300
    $135median $1,970$5k
    -84.8% vs. median
Efficiency vs. peersvs. 11 in class
  • CFM per HP2.67cfm/hp
    2median 3.47.27
    -21.6% vs. median
  • Price per CFM$75$/scfm
    $40median $243$1,272
    -69.2% 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.

$285$295$305$315avg $300today-10d-20d-30d
www.harborfreight.com