Aluplast – ZTG, an Altest company, recently expanded its production capacity with a second Nitrex nitriding system. The Bulgarian aluminum extruder experienced a big manufacturing boost after installing new extrusion presses to meet customer demand for its extrusion profiles used in residential and commercial construction.

The first nitriding furnace, a compact N-EXT-412, had been in operation since 2011. As for the new second furnace, a model N-EXT-612, it is the same as the first one but bigger, capable of processing a load of extrusion dies weighing up to 1300 lb. (600 kg).

A good relationship, trust in Nitrex’s technology to deliver superior and consistent nitrided die results, the dependability of our technical services, and a short delivery delay all helped Aluplast decide to purchase the N-EXT-612.

“We work very well with our Nitrex colleagues, they have always responded to our issues with speed and competence, for which we thank them,” comments Atanas Novakov, Aluminium Production Plant Manager. “Due to the increase in our production, we have ordered a second turnkey Nitrex system so that we can meet our needs. Our good relationship and the superior work of the nitrider made us choose Nitrex again as our partner.”

“The N-EXT-612 furnace is equipped with the NitregR process technology and recipes specially designed for nitriding H11 and H13 steel extrusion dies. It also has an INS neutralizer to keep the process clean and green,” describes Marcin Stokłosa, Project Manager at Nitrex.

The nitriding system includes remote access software and complies with the AMS 2759/10 standard for controlled nitriding as well as the AMS 2750 standard in terms of pyrometry and temperature distribution. Moreover, the system is equipped with an ammonia sensor for leak detection and an ammonia filter to purify the supply gas used in the process by eliminating any oil
content, thereby prolonging the system’s service life.

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