Lenox Group purchases the N-EXT 412 nitriding system for its second aluminium extrusion press in Bulgaria

The Lenox Group, a manufacturer of aluminium extrusion profiles in Bulgaria, purchased a Nitrex turnkey nitriding system after expanding operations by bringing a second extrusion press to its Bulgarian facility. Based on the need, the company decided to buy the N-EXT 412, a compact-size Nitrex gas nitriding furnace for low volume.

The plug-and-play N-EXT is a complete nitriding system that includes the furnace, a control system with Nitreg® technology, and an exhaust neutralizer for environmentally friendly processing. It is constructed on a self-contained platform. It may fit into tight locations inside a plant because of its modest size.

“Previously, the company sent extrusion dies for salt bath nitriding and gas nitriding, but there were quality issues and results were inconsistent, never living up to customer expectations. Lenox Group experimented with various case hardening technologies in search of the best one, the results of which would be repeatable and consistent with their expectations,” said Marcin Stokłosa, Project Manager at Nitrex.

Lenox moved activities in-house to strengthen die dependability through stricter quality control in response to rising output and poor nitriding results from outside processing firms. Lenox Group chose Nitrex in large part because they needed a quick delivery. The delivery and installation of the system will take place in the first quarter of 2022.

Both AMS 2750 for pyrometry and AMS 2759/10 for controlled nitriding are satisfied by the new Nitrex system. It is ideal for nitriding H11, and H13 extrusion dies with a temperature range of +/-5°C.

“Lenox Group could always count on our guidance and involvement through every stage of the project. This is the story of a long-term relationship, and an experience rewarded with a signed contract after talks spanning several years,” added Mr Stokłosa.