An Air Pressure Amplifier is an air pump that is driven by part of the incoming compressed air supply enabling it to cycle and pump the balance of the supply to a higher output pressure. Pressure is generated by the use of a differential area piston assembly. Low pressure air applied to a large area creates high pressure air on the small area. Cycling is achieved through the use of two pilot valves that alternately pilot and vent the large area end of a cycling spool. The small area end of the cycling spool uses a permanent air spring. This unbalanced cycling spool ensures that the air amplifier cycles on demand. Unique Haskel seal technology enables the drive section of its pressure generating products to operate without air line lubrication. No lubrication of any kind is used in the high pressure sections where non-metallic bearings and wear compensating seals are employed. The ratio of the areas between the connected pistons is called the area ratio and is the dash number used in all model codes.

This ratio and the available air drive source pressure determines the maximum outlet pressure of the air amplifier. The completely sealed air amplifier will "stall" at its maximum capable outlet pressure and consume no energy or generate any heat while doing so. When pressure drop is seen at the air amplifier outlet, the unbalanced spool ensures cycling to make up the pressure loss and will again "stall" after having done so. Double acting and two stage models are available which provide increased output and efficiency as well as using input air directly on the high pressure piston(s) in both stroke directions to increase drive force and output pressure capability. A proven range of horsepower sizes is available to meet most high pressure air requirements; from our 1/3 HP for low flow/static applications to our 8 HP used for high flow dynamic applications. Haskel air pressure amplifiers are powered and controlled by the same compressed air they boost (amplify), with no electrical connections. And their minimal overall size makes them  easy  to install.

Air Amplifier Model Ranges

HAA31 Models Single-acting, single-stage air pressure amplifiers 3 models with ratios of (2.5:1), (3.5:1) & (4.5:1) Maximum inlet pressure of 125 psi Maximum outlet pressures from 320 psi to 600 psi AA Models Single-acting, single-stage air pressure amplifiers 3 models with ratios of (8:1), (15:1) & (30:1) Maximum inlet pressures from 1,250 psi to 4,500 psi Maximum outlet pressures from 2,500 psi to 4,500 psi AAD Models Double-acting, single-stage air pressure amplifier provides outlet flow on each stroke of cycle and gains "lift" from inlet pressure 4 models with ratios of (2:1), (5:1), (15:1) & (30:1) Maximum inlet pressures from 300 psi to 4,500 psi Maximum outlet pressures from 300 psi to 5,000 psi AAT Models Two-stage air pressure amplifier provides two high pressure pistons of different ratios within a single unit for maximum efficiency at higher outlet pressures 3 models with ratios of (7/30), (15/30) & (30/50) Maximum inlet pressures from 300 psi to 3,000 psi Maximum outlet pressures from 4,500 psi to 5,000 psi

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