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Air-Over-Oil (CPA)

Hydrolair air over oil presses, available in 5 tonnage ranges, from 30 tons to 250 Tons. The Hydrolair 4-post, up acting, air over oil presses will hold a vice-like grip for seconds, minutes, or hours, maintaining tonnage for virtually any length of time. With low initial cost and minimal operating costs, the Hydrolair line of presses offers the force of a conventional hydraulic press at a fraction of the cost.


  • Air-Over-OilHeavy 4-post frame provides maximum rigidity and minimum deflection for accurate parts and long tool life.
  • Front mounted pressure control and gauge allow tonnage adjustment in seconds.
  • Dual Palm Button control: Anti-tie down, non-repeat controls with ring guards; conforms to OSHA.
  • No electric motor or hydraulic pump; eliminates the need for electric power.
  • Virtually maintenance-free.
  • Quiet operation.


  • Hot plates for curing, laminating, etc.
  • More daylight and stroke.
  • T-Slots and mounting holes: Custom designed for your tooling.
  • Special controls.

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Contact the sales department for more information.