Allcase® Batch Integral Quench Furnaces are installed around the world to heat treat a wide range of components from small fasteners to large, heavy castings. With continued advances in process control, energy efficiency and automation, the Allcase remains the most respected furnace in the industry.

Surface designed the first ever batch integral quench furnace, the Allcase, 70 years ago. 

Reliable, repeatable and rugged performance controls and automation available in six (6) standard effective work sizes and four (4) different configurations, an Allcase line can be fully automated with companion equipment to process loads from start to finish.

Allcase Batch Integral Quench Furnaces provide heat treaters value through greater process control, higher production and consistent results. The efficient gas heated units can be equipped with either bung mounted vertical “U” tubes or rear mounted horizontal Trident® tubes. Electrically heated units using Surface’s patented Proelectric® heating elements are also available. A uniform environment is key to successful heat treating.

The Surface designed, air cooled vibration dampening cast alloy fan provides rapid recirculation of furnace gases to ensure maximum heat transfer to the load along with maximum uniformity of temperature and atmosphere gas composition.

The furnace casing is constructed of air-tight welded steel plate supported and reinforced with structural steel members to provide tight atmosphere control and rugged performance. The quench tank contains the optimal oil volume and agitation to harden both high capacity and high surface area loads. The double deck quench elevator enhances productivity by allowing the next load to be charged into the furnace while the previous load is quenching.

Heat treaters prefer the Surface Allcase batch integral quench furnace for the wide range of shapes and sizes of parts that can be processed.

This equipment can be purchased piece by piece and easily added to the line as production levels increase.

Surface has over 100 years of history in the thermal processing business and has installed over 3000 Allcase furnaces. Many of the first Allcase furnaces installed are still in operation today. With the industry standard Allcase, you can be assured you will have consistent output, low operation costs and many years of quality excellence.