Rotary Lift Installation Specs

by Benjamin Aries
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Rotary is a brand of vehicle service lift produced by the Vehicle Service Group and distributed throughout the world. The lifts are available in several configurations, including small mid-rise lifts, two-post lifts and heavy duty four post truck lifts. Each lift has a set of requirements that must be met when it is installed. Because Rotary lifts often raise several tons into the air, these installation requirements are an important factor in keeping operators safe.


Rotary lifts must be installed on a quality concrete floor that is free of cracks and defects. The minimum anchor depth for Rotary lifts is 3 1/4 inches. The total overall concrete thickness must be at least 4 1/4 inches for two-post lifts, or 5 inches for heavy-duty four-post lifts. The concrete must be rated to withstand 3,000 pounds per square inch. Rotary lift concrete anchors must be torqued to 150 foot-pounds.


Standard two-post Rotary lifts must be installed in a bay of at least 12 feet inch length and 24 feet in width. For heavy duty two-post lifts, this requirement increases to 12 feet by 26 feet. Low rise Rotary lifts must be installed in an 11-foot-by-24-foot bay, while four-post lifts require a 15-foot-by-23-foot bay size. The minimum ceiling height for a Rotary lift is 10 feet. Heavy duty four-post lifts require approximately 5 feet of additional ceiling clearance.


Rotary lifts can be installed using several different electrical sources. The required electrical breaker size changes depending on the input voltage. For single-phase 100 volt installations, lightweight Rotary lifts require a 15 amp breaker, while larger lifts need a 25 amp breaker. Single-phase 220 volt installations must have either a 20 amp or 40 amp breaker, depending on the capacity of the lift. This breaker requirement drops to 20 amps if three-phase wiring is used. Installations using 400 volts and three-phase wiring require only a 10 amp breaker.


Rotary lifts require Dextron III automatic transmission fluid, or a similar International Standard for Organization specification fluid for use in the hydraulic system. Standard two-post Rotary lift installations must have 19 quarts, or 17.98 liters, of fluid. The lightweight mid rise lift requires only 6.5 quarts, while the heavy duty Rotary lift must have 22 quarts.

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