Stainless Steel Trapezoidal Screw Jacks
The use of stainless steel has had an exponential growth in the last years. New market demands, hygienic requirements in food industry and the applications in oxidizing environments require an higher and higher employment of stainless materials.
From the beginning UNIMEC has been able to supply its products in stainless steel for its customers. Anyway, realizing those components meant long manufacturing times. For the most requested products and sizes UNIMEC is now able to propose a complete series: the X series. This choice gives multiple advantages: on the one hand a shortening of the delivery times as the components are all available on stock, on the other hand the manufacturing allows to obtain quite interesting costs, because it starts from the row casted pieces.
The main feature of an AISI 316 steel is its high resistance to corrosion, above all in the sea and food environments, where AISI 304 seems to have some problems.
X TYPE SCREW JACKS
Screw jacks belonging to the X series are sizes 204, 306, 407, in all the construction models.The components made of stainless steel are casings, bushings, covers, motor flanges, spindles and all end fittings.
The only component which is manufactured in non stainless steel is the worm screw. In case the screw tangs are exposed to oxidizing agents it is possible, on demand, to protect them by means of the Niploy treatment which has been described at the end of the trapezoidal screw jacks chapter.
The pre-dimensioner is a tool to guide the user to the right size able to fullfill his design requirements. The selection of the right power transmission is influenced by many factors, so it's reccomended to consider pre-dimensioner results as indicators and to go deeper in the matter on product datasheet or in the sizing tool.