Rope Layer Machine: 500/3 The exclusive SIMA technology of four-for-one twists per revolution on the compound rope layer model 500 represent the most advanced level of research gained from many years of experience in the rope manufacturing industry. The model 500 fulfills the most competitive and versatile solution and meets customers requirements in the production of ropes from synthetic and natural fibers. The four-for-one layer model 500 can achieve almost twice the productivity of the traditional rope layers (two-for-one) and produces a very high quality rope. * Technical Data: 500/3