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Knuckle Boom Crane Adapted To His Shop Floor
When Stephen Garver began considering installing a shop crane, he decided he could adapt a knuckle boom crane that would normally be mounted on a truck.
After finding one for sale on eBay, he set out to calculate the base size and weight he would need for his shop floor.
The crane itself weighed
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Knuckle Boom Crane Adapted To His Shop Floor FARM SHOP Maintenance When Stephen Garver began considering installing a shop crane he decided he could adapt a knuckle boom crane that would normally be mounted on a truck After finding one for sale on eBay he set out to calculate the base size and weight he would need for his shop floor The crane itself weighed 7 500 lbs and after some searching for expert advice a Memphis engineer cautioned him that “wider is better than deeper” and helped him decide on an 8 by 8 by 6-ft concrete base “I had a contractor come in and cut a hole in the floor ” says Garver “Then we dug it out put in rebar and poured the concrete It mushroomed out a little under the floor which made it 17 yards of cement or 70 000 lbs ” Garver fashioned an adapter and the base that went into the floor A tow truck brought the crane inside the shop and set it on a 14-stud structure on 10-in I-beams He installed a 30-hp electric motor converter box 2 500-lb pressure rated 12-gal hydraulic pump and a 40-gal oil reservoir tank After some frustration getting the motor to run the crane properly he added a separate 20-hp motor then wired the two together which converted the three phases to single-phase and provided all the required power Garver says he has used the crane to pick up a Detroit 60 engine and 13-speed transmission weighing over 6 000 lbs in one lift “It’s very handy and maneuverable ” he says “It extends to reach throughout my entire shop and 20 ft out the shop door Maintenance is minimal because it’s indoors and out of the elements I just grease it and change the oil ” He estimates he spent around $15 000 on the project including the crane concrete and electrical components In time he’d like to add remote control operation to the crane Contact: FARM SHOW Followup Stephen Garver 9158 Wheeler Rd Marion Ark 72364 ph 870-735-8265
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