Oil quenching furnace For over 55 years, DHVE has been offering vacuum Oil/ Gas Quenching Furnaces to process critical parts of aerospace, defense, ordinance factories components, and also for industrial applications. Vacuum oil / gas quenching is playing a significant role in heat treating applications. Now, these vacuum based oil / gas quenching processes have gained large popularity, and important advantages in a large number of heat treating applications. Vacuum oil quenching technology is environmentally friendly and offers advantages such as: Superior control of surface chemistry compared to salt bath or controlled atmosphere processes. Ability to harden thick sections and heavy loads in a wide variety of steels. Ability to process finished surfaces without decarburization, so parts processed by vacuum oil quenching do not require plating or protective coatings. Quench-related distortion is minimized through uni-directional load transfer to quench tank via high speed elevator. Our vacuum oil quench furnaces can be equipped with an optional gas quench capability.