Stainless Steel Screw Jacks are specifically designed for positioning and lifting applications that are located in wet, corrosive or other harsh environments. In most cases, these jacks can be easily retrofitted into applications where non-stainless steel jacks have already been installed. They are available in 2-ton through 25-ton capacities with either single lead (SWJ) or double lead (DSWJ) lifting screws. SWJ series jacks are self-locking under full lifting capacity. DSWJ series jacks offer increased travel speeds.
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All exposed surfaces and components feature 316 or 17-4 stainless steel construction and bronze (bushings and traveling nut).
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Nitrile rubber seals protect all internal mechanisms.
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Tapered roller or ball thrust bearings provide rugged reliability.
They are available with one of four standard screw ends or special ends to meet your requirements. Double input shafts are standard. An optional anti-backlash feature compensates for thread wear, assuring minimum play between lifting screw and worm gear for smooth, precise operation. All jack designs can be fitted with protective boots.
Stainless Steel Screw Jacks are widely used in many industries including the following:
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Food handling
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Paper mill
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Printing
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Defense
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Coastal installations