Page 23 of Quality Tools for the Energy Industry by Cooper Power Tools

hoist overview fueled by endless numbers of varying applications and the desire to provide greater flexibility gardner-denver offers an extensive list of hoist options and accessories as you begin to define the hoist configuration which best suits your unique application utilize the criteria outlined here to obtain the optimum operator/hoist/task relationship selecting the proper hoist general hoist selection hoist mounting page 42 mounting options s hook mount although requiring more headroom than lug mounts,the flexibility of hook mounted hoists make them the more popular choice easier to hang and relocate hook mounted hoists rotate at both the upper and lower hooks allowing the operator greater flexibility when manipulating a load into a desired position or angle in addition many hook mounted hoists offer the option of link or roller chain and when hung from the appropriate gardner-denver trolley allow horizontal movement of the load control options s rope rope control provides a simple direct link to the hoist control valve allowing the operator to feather the operation of the hoist making starts and stops more accurate and predictable because there are no moving parts rope controls require minimum maintenance and are economical to replace s hook pages 44-45 s trolleys page 46 s hoistractor pages 47-48 hoist motor type page 42 s rotary vane s axial piston capacity requirement control type page 54-56 rope pendent see appropriate hoist page s pendant gardner-denver hoist control pendants provide a versatile one-handed method of hoist control with varying length options the operator can safely control both lifting and lowering of the hoist as well as horizontal movement of a hoistractor from 5 to 25 ft away with the required cable assembly the pendant control provides a means for pulling a trolley and the ergonomic handle design provides operator comfort while preventing accidental operation s standard 5 feet s standard 5 feet page 56 specify optional length specify optional length s lug mount the compact low headroom design of lug mounted hoists make them ideal for applications where space is at a premium this semi-permanent mount provides the greatest benefits in tight working situations where the non-rotating non-swinging lug allows precise placement of the load lug mounted hoists are available with link chain only to allow side movement of the load and can be mounted on the appropriate gardner-denver trolley for horizontal movement of the load chain type s link s roller s spark resistant lift see appropriate hoist page s standard 10 feet specify optional length lifting speed chain options s link link chain with its relatively low cost is available on all hoist models and is practical for use in a wide variety of applications its capacity for rotation allows the operator to rotate the load slightly to assist with precise placement for applications requiring rust and spark resistance gardnerdenver offers zinc plated chain on all models of hoists and stainless steel chain on hoists with capacities up to 3000 lbs hook type upper lower optional hooks page 51 s trolley mount for semi-permanent applications requiring horizontal load movement trolley mounted hoists provide the greatest benefits this compact non-rotating configuration holds the load in constant alignment as ball bearing constructed wheels provide smooth movement along the beam gardnerdenver trolleys adapt to many i beam sizes and are offered in link chain only to allow side movement of the load s standard s standard s bullard s bullard trolley mounted hoists hoistractors combination units beam specifications page 57 s roller for smother operation and extended life gardner-denver offers roller chain on the k5 p1 and p2 series of hook mounted hoists in addition roller chain manufactured with stainless steel is available for applications requiring spark resistant or clean room operation motor options s rotary vane the industry standard in air hoists rotary vane motors provide an economical easy to maintain solution for the majority of fast rugged applications the gardner-denver 7 k5 and k1 series of easy to operate hoists incorporate rotary vane motors which can be removed without disturbing brakes valving or gearing while highly reliable spring loaded vanes insure immediate response start after start width height wheel type trolley page 47 hoistractor page 47 s tapered standard s flat s narrow flat s tapered standard s flat s narrow flat single or double reeved s single reeved when speed is of more importance than capacity the single reeved hoist is the best choice through the direct connection of the lower hook to the chain and then to the hoist all available drive speed is transferred to the load note suitable for american std american monorail cleveland tramrail spanmaster whiting and louden patented i beams hoistractor engagement page 47 s spring standard s neoprene standard s free wheel to positive drive s adiprene s positive drive to free wheel s axial piston manufactured exclusively by gardner-denver for applications where precise load control is essential gardnerdenver offers the p1 p2 and p3 series of axial piston hoists these motors operate using multiple air driven pistons providing axial force this force is converted to rotary motion through the use of a socket plate and driveshaft assembly all within a small compact package axial piston motors provide several advantages including precise load control quiet operation low air consumption and greater resistance to adverse air conditions hoistractor engaging wheel type page 47 s double reeved for extra lifting capacity the double reeved configuration increases the amount of weight the motor can lift by routing the chain around a sprocket on the lower hook before connecting it to the hoist drive lifting capacity is doubled in turn the speed of the lift is reduced by half for heavy and sensitive loads this slower action could be preferable extra equipment s chain container pg 49-50 s auxiliary cable pg 52 s hose trolley s piped exhaust adapter s flow control valve pg 52 42 43

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