With over thirty-years of experience, Mair Research S.p.A. has established itself as a leader in the manufacturing of tube and bar finishing and processing lines. Mair is specialized in engineering, manufacturing and start-up of finishing applicable in the automotive, aerospace and mechanical industry. Mair Bar Division supply program includes bar inspection and conditioning lines complete with two-roll straightening machines, cut to length stations with single or multiple units, chamfering and facing machines and final packaging lines tailor made according to final user requests. Mair supplies bright bar production lines with peeling machines to process bars from 5 up to 350mm dia. (larger bars upon request), centerless grinding machines for high precision bars (IT6) and bar to bar drawing benches. Their coil to bar peeling lines are able to process cylindrical and/or tapered bars for automotive springs production. Some of the last Mair Bar Division main projects have been the following. Peeling line for automotive spring production: Mair successfully commissioned a complete coil/bar to bar peeling line to produce cylindrical and tapered bars from 6.7 up to 25mm dia. The line includes a coil opening and feeding system, pre-straightener, calibration unit, peeling machine (equipped with cut-to-length shear) and a two roll straightening machine to guarantee a straightness below 1mm/m. A complete inspection line for engineering steel round bars: The line is expected to be in full operation within this year for the processing of round bars from 15 to 90mm dia. The line includes a two roll straightening machine designed to have a high processing speed, multiple head cutting station for high precision cutting to length, chamfering area and bundling unit. Centerless grinding machine to produce bright bars directly from as-rolled bars: The centerless grinding machine to produce high precision bright bars starting from as-rolled black bars has been successfully put in operation. The line produces bright bars from 12 to 30mm dia. Straightening and centerless grinding plant for quenched bars: The plant will process round quenched bars from 12 up to 60mm, it is composed by three separated lines: Straightening line equipped with a two roll straightening unit to prepare the bars with a straightness below 0,2mm/m, two centerless grinders complete with charging and discharging facilities, one up to 30mm dia and one up to 60mm dia, which will calibrate the bars with a final tolerance of better than IT6.Four bar inspection and conditioning lines for engineering and stainless steel bars: Mair has been awarded with a contract to supply the engineering and main equipment for four inspection and conditioning lines for engineering and stainless steel bars up to 60mm dia. The main equipment includes: shot blasting machines, straightening machines and chamfering stations. All the lines will be supplied in a record delivery time: in fact the equipment will be delivered fully tested in 6 and 8 months. All lines are controlled by automation system developed by Mair to fully exploit the know-how build up in more than thirty years of experience in this type of finishing plants.

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