Champion Bare Pump, Model R-70A, 20, 25, 30 HP, 175 PSI Max Pressure, Includes Low Oil Stop Control


Champion Bare Pump R-70A

Champion R-Series Compressors have a time-tested, proven
design. Rugged standard features, a wide selection of
configurations, and premium quality available options make
the R-Series compressors the solution to your application.
Delivering high performance, long life and tremendous value—
Champion compressors are the proven choice!

Out of stock


The Champion R-70A replacement pump has die-cast aluminum cylinders in cast-iron sleeves built to last. Includes load less starting, intercoolers that dissipate heat, and a gasket less design that delivers maximum efficiency and reliability. The R-70A is available in 1 Phase or 3 Phase.


Splash-Lubricated R-Series
Multi-Finned Cylinders
Cooler operating temperatures
result in longer life and consistent
performance over time.
Integral Cylinder/Head
Gasket less design eliminates the
possibility of blown head gaskets
for trouble-free operation.
Balanced Pistons
Aluminum alloy first-stage piston
and cast iron second-stage piston
ensure proper balance.
Piston Rings
Two high efficient lap joint
compression rings with
bi-directional seal provide the
most efficient air delivery.
Connecting Rods
High-density, die-cast aluminum
alloy rods minimize reciprocating
weight. An integral, precision bored crankpin bearing and
needle bearing for the wrist pin
minimize friction and properly
distribute loads for extremely
long life.
Pressure Relief Valves
Located in interstage and
Large Capacity
Rugged cast iron oil reservoir
has convenient sight gauge glass,
corner oil fill boss and large oil
Large diameter finned tubing is
positioned to obtain the greatest
cooling effect between stages for
maximum compressor efficiency.
Optimized Cooling Fan/
Precision balanced flywheel
has fan blades for optimum
compressor cooling and life.
Reliable, High-Flow
Disc Valves
Single-unit, disc-type valves
provide low lift and long life. Discs
are made of corrosion resistant
steel, valves are easily serviced by
removing the manifolds.
Oversized Main Bearings
Tapered roller-type main bearings
provide full contact and support
of the crankshaft plus deliver the
longest possible life.
Balanced Crankshaft
Constructed of rugged ductile
iron with large diameter throws
for minimum bearing loads and
large counterweights to minimize
Load less Starting
Mechanical governor-type
centrifugal unloader assures
longer motor life by allowing the
compressor to start unloaded
every time.


Champion R-70A Specifications


Champion R Series Bare Pumps