Pfaff 1183-8/31-900/24-910/06-911/37BS - universal lockstitch machine, bottom feed, integrated energy-saving servo motor QUICK ROTAN, 5.500 s.p.m., needle positioning, thread trimmer, automatic presser foot lift and bar tacking. Maximum stitch length 4,5 - 6 mm. In new lock stitch machines PFAFF the slide bearings has been eliminated and replaced with the rollings [ball and needle rollers]. Thanks to that their vitality has been extended and the necessity of lubricate many elements has been limited. The machines class 1183 are equipped with closed [safety] oil tank. Operating panel BDFS2 in standard. Machine available in A, B and C versions (light, medium and heavy materials), model C - max. stitch length 6 mm. For this machine we recommend SCHMETZ needles system 135x5 or 135x5 SERV7, with correct needle points, depending on the fabric.