Two-Stage Industrial Air Compressors
A two-stage air compressor is normally used in industrial, commercial and automotive applications where a reliable source is critical. A two-stage air compressor compresses to a higher pressure than single stage air compressors. This allows the air compressor to store more air for future usage. The efficiency in a two-stage air compressor once again is higher than its single stage counterpart, producing more cubic feet of air per horsepower which results in lower operating costs.  Also with a two-stage air compressor less heat is generated which reduces the wear and results in a longer life. 

The MARK Stormy-Pro Industrial Two-Stage Reciprocating Compressors have a range of 3-Phase piston compressors in 5.5HP, 7.5HP and 10HP.   With proven rugged reliability, high efficiency pumps and ease of maintenance, these industrial strength compressors will handle your workload with ease. 

Heavy Duty 100% Cast Iron Cylinders
Each cylinder is separately cast and individually flange bolted to the frame and precision honed for compatibility with the piston rings.
Balanced Overhung Crankshaft
Stiff overhung crankshaft with a long life bearing precision balanced for smooth running and with a replaceable crankpin bushing to protect the crankshaft from damage.
Rugged One-Piece Connection Rod
Solid-end precision type; no nuts or bolts to come loose.
Efficiently Finned Intercooler Tubes
Dissipates heat to help the compressor run cooler and use less power.
Heat-Treated Stainless Steel Valve Assembly
Provides a larger flow area for less heat and carbon build-up with easy service access, removal and replacement.
Centrifugal Start Unloader
Prevents motor starting under load thus eliminating the possibility of motor burnout.