Used WATKINS-JOHNSON 12-TF-135 #114978 for sale

WATKINS-JOHNSON 12-TF-135 is a high-performance oven and furnace, designed for use in a wide range of laboratory and industrial applications. It is a forced-convection and tight temperature uniformity oven designed for an accuracy of +-1 degree C throughout its heating chamber. 12-TF-135 oven has a maximum temperature rating of 1250°C, with a 30-day average temperature stability of +-0.2°C. It is powered by a 12 KW heating element situated on the bottom for rapid and uniform heating. The oven consists of a sloped bottom that allows for easy pour-out of debris or samples. The heating element is mounted in the roof, allowing instant temperature recovery after the door is re-opened. The oven has a forced-air draft which creates an evenly heated atmosphere, with enhanced stability and uniformity. WATKINS-JOHNSON 12-TF-135 comes with a 3-layer external insulation constructed using a combination of ceramic fibre, silica-magnesium, and a galvanized sheet steel welding process to prevent any heat transfer to the outside. It is supplied with a single interior light source, allowing workers to check on running operations without needing to open the door. Two thermocouples probe the temperature in the centre of the chamber to ensure proper control of temperature. The oven also incorporates a temperature controller with two LED bargraph displays and two LED indications, with both LED and visual alarms. 12-TF-135 model is protected with a 480volt 3 phase, 5 wire earthed service which adds an additional layer of safety. The oven also includes an oxygen depletion system that shuts off the power during an oxygen deficiency, preventing an explosion. The furnace is also highly safe, featuring low-temperature controllers located on the exterior cabinet, and safety interlocks on the door which prevent opening during operation. To operate, WATKINS-JOHNSON 12-TF-135 requires a correctly rated mains supply with a dedicated dedicated circuit for improved efficiency. Built with the highest quality materials, this model was designed to stand up to a large workload, with a high thermal efficiency, and stainless steel construction. This oven is well suited for a wide range of applications such as annealing, ceramic processing, sintering and sterilization.