Pump

Our Air Compressor Pump

At the core of our Silent Air Compressors is our sturdy and reliable air compressor pump by Eaton Compressor. These air compressor pumps are exceptionally quiet in operation and engineered to provide years of reliable service.
Our air compressor pumps are engineered with reliability and durability in mind. The crankcase is solid cast iron, ensuring stable crankshaft alignment and the ability to handle a higher workload even under heavy load conditions. Our compressor pumps also feature a precision balanced solid cast iron crankshaft with Timken-Style stainless steel roller bearings on the front and rear of the crankshaft, ensuring smooth & efficient operation with less drag and reduced energy usage.

All steel connecting rods with replaceable rod bearing inserts

This allows the air compressor rods to be rebuilt. While many of our competitors use less reliable aluminum rods, that cannot be rebuilt, the ability to rebuild the rods in our compressor will save you money.

Removable 100% cast iron cylinders

Our solid cast iron cylinders are more stable under extreme workloads and do not warp from heat, ensuring years of reliable service. Many lesser quality competitors use aluminum cylinders with a pressed-in sleeve, that can quickly warp and often need to be replaced within 1-2 years. Our solid cast iron cylinders were designed to provide years of dependable service under extreme conditions.

All cast iron cylinder heads

Cast iron cylinder heads are more durable and dependable for trouble free operation.

Disc valve design intake and exhaust valves

Disc valves have been around for over 100 years and have been proven to provide reliable service under extreme conditions. Our disc valves can be easily removed from the top of the cylinder head, where they can be serviced in minutes, instead of hours, like the reed valves often found in lesser quality air compressors.

Top quality compression and oil rings

Our rings ensure performance with low oil carry over (1-5 PPM).

Precision ground pistons

Machined to tight tolerances ensuring low oil carry over.

Premium non-absorbent gaskets

Prevent oil seepage from the pump.

All cast iron flywheel with built-in fan

The extra weight of our cast iron flywheel during run cycle gives the pump more “throw” on the compression stroke resulting in fewer loads on the electric motor. Many lesser quality air compressors use aluminum flywheels that do not have the proper weight ratio to give the proper throw, on the compression stroke, when the pump is running.

Built-in head unloaders

These unloaders are built into the intake valve assembly, on the compressor head, and perform a valuable function by unloading or opening the intake valves under constant run applications. This feature reduces internal pump heat from compression, because the intake valve is held open throughout the unloading cycle, allowing fresh air to come into the cylinder chamber. Under the compression stroke, the unloader holds the intake valve open, allowing the air to blow back out the intake filter. This fresh air absorbs the heat from the pump under heavy workloads.

Built-in inter-cooler and after-coolers

The inter-cooler allows air to be cooled between stages, while the after-cooler provides a second cooling stage, that further cools the air before it goes into the tank. Our after-cooler also includes an all copper main feed line from the pump into the tank.