The coil-to-bar Combined Drawing Lines are composed as follows: Pay-off Robot Pre-straightener Pulling unit Shape-straightener Shear Two-roll straigntener Chamfering machine Strapping, weighing and storage
Description: Pay-off Designed to minimize the gap between the end of the drawing of a coil and the beginning of the drawing of the next one. They are equipped of a platform that can rotate of 360°, operated by an hydraulic gear motor. Robot The robot has a manipulator which is a kind of extension of the operators hand, who, could not otherwise handle materials tip when materials have rather thick sections. Pre-straightener These machines take the material from the pay-off to the die through mecanical descaling units (or others). They are composed by two groups. Pulling unit The experience gained over many years in the field allowed SAS to place itself on the market with a system which incorporates all the new technics, available nowadays, with the utmost reliability. Shape-straightener The bar straightening process is obtained by the passage of the bar through a pre-setted roller set. The two straighening heads, vertical and horizontal axis, allow to process the two bar axis. Shear The market is evolving and it is always in search for production lines with higher and higher speed. SAS answer these requests offering lines with an increased speed, an increase in the speed of the drawing lines, of the cutting quality obtained and of the tolerance of the length. Flying Shears cutting “bushing-to-bushing” have been designed and realized. Two-roll straigntener The SAS two-roll burnishers have a very strong frame, they are designed to straighten ferrous and non-ferrous materials round bars. Thanks to the simplicity of the execution, they are a precious support both in-line in connection with drawing bench or peeling machine and out-line. Chamfering machine The chamfering machine is composed by a fixed head and a moving head. Each head had two spindles and each head can reach a production of 30 bars every minute, maximum with chamfer up to o,5 cm.
The Coil-to-coil Combined Lines are composed as follows: Double tilting pay-off Motorized pre-straightener (2 horizontal rolls and 6 vertical rolls) Calibration unit with 4 rollsi 2 separated auxiliary infeeder Peeling unit Description: Double tilting pay-off Designed to minimize the gap between the end of the drawing of a coil and the beginning of the drawing of the next one. Motorized pre-straightener (2 horizontal rolls and 6 vertical rolls) These machines take the material from the pay-off to the die through mecanical descaling units (or others). They are composed by two groups. Calibration unit with 4 rollsi 2 separated auxiliary infeeder Peeling unit Our bar-to-bar peeling unit (RPF) represents a new class in high quality machining applications. The SAS RPF peeling machine combines solution efficiency with innovative structural strength allowing for adaptation to the most stringent of requirements and the flexibility to machine wide diameter steel bar. New guide and alignment technologies have allowed for significant reductions in vibration. The RPF is designed to provide low maintenance long lasting precision peeling operations. The distinctive features of the RPF peeler are:
Economic production of high quality steel bars. Rigid structure. Use of vibration dampening materials. Innovative cutting tools optimized for large capacity operations. Accessibility to the tool changer.
The SAS Chain Pulling Units have different pulling forces, from 10 to 120 ton: Hydraulic push pointer inlet point into the die The carriage has two functions (double jaws): the first one pushes (inlet bar ) the second one pulls (outlet bar) The structure integrates the filiera holder head with the lubrication systems. In the heads you can assemble both die holder for “standard” dies and “dismountable” die holder. Pulling Unit Between the push pointer and the pulling pinion there are two girders which are the driving way of the pulling carriage The drawing bar unloading devices which are assembled on the girders, can be of two types: Pneumatic banners that are placed perpendicular to the axis of the bench at the passage of the carriage or central rolls rising at the passage of the carriage to hold the drawing bar. Pulling pinion connected to the gearmotor with double function DC motor: constant torque from 0 to a default value of drawing speed where the motor retains the maximum pulling capacity at the changing of the speed. Constant power where the motor reduces the torque at the increase of the drawing speed. There are two types of pulling units: Parallel chains to unload the bar from the bottom Central chain to unload the bars from the side (with banner device) Pulling carriage: it slides on the runway of the bench. The pull originates from the chain; in the type with parallel chains, the chains are linked directly to the carriage and the main motor provides to the pull and the return. In the type with central chain, the chain always rotates in the same sense, actioned by a main motor. On engaging a pneumatic hook it inserts into the mesh of the chain pulling the carriage for the desired torque. The return is obtained thanks to a further gearmotor which, by pulling a metal rope,pushes the carriage to return to the gripping material position. A pneumatic clamp provides to the grip of the material in the die and to pull it along all its length. The outlet of the end of the bar from the die disengages the clamp leaving the drawn bar ready to be discharged. Air connection: assembled on the head of the bench it provides to the closing of the clamp and the lowering of the pulling hook.
“We work for our Customers, and thanks to their confidence and our capability to satisfy their requests we have been able to grow constantly during these fourty years of activity. From a 1,500 sqm shop in 1973, to the 20,000 we occupy today and they are still not enough. From the first repairs and improvements of used machines, to the new and highly performing lines of nowadays. SAS development can be summed up as follows, step by step, success after success, remaining always faithful to the origins and traditions of our experiences. Nowadays the quality of our equipments is not only certified by the market but it is established by the satisfaction of our customers, whom we thank for the trust they continously recognize and the new challenges they propose us to face”. SAS Engineering & Planning has been working for more than fourty years in the field of the processing of ferrous and non-ferrous metals, supplying the best technological solutions and a constant support to the companies. SAS Engineering & Planning takes care of the product in each phase: from the design to the construction, from the assembly to the final test. SAS Engineering & Planning does not only take care of the construction of new equipments but also of the revamping and improvement of already existing ones. The team of the company is always busy with the study and the research of solutions enabling the update and the offer of technological and qualitative state- of-the art products. The production efficiency and the highly certified quality make of SAS a worldwide leader company in the construction of machines for the working of ferrous materials, registering in the latest years a lot of successes and the record for the number of new sold peeling and drawing lines. During the years the company has achieved important goals, obtaining different patents and its applications have met with international acclaim. SAS doesnt only take care of machines but builds reliability relationships with its customers, who, in every moment, can rely on its support, assistance, and the competence of a reality recognized as one of the most innovative and reliable in the steel industry. SAS has always been aiming at the satisfaction of its customers in the best possible way: thanks to its competences and professionality, SAS analyzes, studies and realizes from zero (scratch) complete lines of production and proposes itself as partner and consultant, advising the customers on the different opportunities of development available. The production efficiency of SAS, alongside the experience acquired and the highly certified quality, make of it a worldwide leader company recognized all over the world.