Quincy QSD®The Quincy QSD® is more than just a two-stage, oil-free rotary screw compressor designed to pro-vide up to 125 PSIG of clean, oil-free air. You see, we’ve engi-neered every aspect of the Quincy QSD to exceed industry expecta-tions – complete with a three-year airend warranty.
Our innovative Triplex bearing arrangement delivers an airend life expectancy of over 100,000 hours. Our patented lift valves are simple by design (eliminating the need for inlet valves) and deliver the lowest unloaded brake horsepower. In addition to the Quincy Power$ync II, our most advanced controller, the Quincy QSD offers an added measure of reliability with a fully redundant, electro-mechanical backup control system.
You’ve seen how everyone else defines reliability. Now’s the time to put the Quincy QSD to work and see what reliability really means.
Clean, Oil-Free AirReliable, Efficient Oil-Free Air Clean, Oil-Free Air Throughout the textile, food processing, electronics, chemical, medical, and plastics industries, the need for oil-free air is essential. This is why air quality was our top priority in designing the new Quincy QSD airend.
The Quincy QSD features a redundant shaft seal system to prevent oil migra-tion into the compression chamber. This system includes a primary set of seals on the dry side, a sinuous path seal with oil dam, and an atmospheric oil drain on the bearing side – all of which prevent any oil from entering the compression chamber.
Innovative EfficienciesThe Quincy QSD incorporates a two-stage design that maximizes operating efficiency throughout a full range of pressures. By dividing the work of compression equally between the two stages, the Quincy QSD produces more CFM per horsepower. In addition to being highly efficient, the compressed air produced by the Quincy QSD is cooled after each stage.
In designing the Quincy QSD we elim-inated the need for inlet valves. Instead, our patented Quincy lift valve technology does the job by opening the compression chamber as demand drops. This means that during unloaded operation, the Quincy QSD consumes only the power it needs to turn the rotors and gears – because no compression can take place with the lift valve open.
The result is unloaded horsepower as low as 10% of full load power, without sacrificing full load efficiency.
True Blue ReliabilityQuincy’s patented Triplex bearing arrangement adds up to increased effi-ciencies and reliability. The Quincy QSD uses a Triplex bearing arrange-ment on the thrust side of each airend, in addition to a single row of roller bear-ings on both the suction and dis-charge to support radial loads. And while the bearings on most oil-free rotary screw compressors last between 30,000 and 40,000 hours, Quincy’s Triplex bearing technology delivers a life expectancy of over 100,000 hours. This is equal to even the most durable fluid-flooded compressor.
At Quincy, this rugged dependability translates into True Blue Reliability again and again.
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