Liftech provided structural analysis and design for various rotating log boom cranes. The latest was for a 170-foot, 45-ton crane in Valliant, Oklahoma. Liftech also designed and prepared drawings for cranes with radii of 125 feet and 155 feet and capacities ranging from 25 tons to 60 tons. The grapples are either at a fixed radius or mounted on a moving trolley.
This barge-mounted Liebherr 998 hydraulic excavator experienced significant fatigue cracking during normal operations. Liftech provided the following engineering services to mitigate the failure problem: Reviewed the existing structural details and then monitored the manufacturer’s modification of unacceptable fatigue details.
Liftech designed many baffle and burner support structures for Coen. The baffles and burners are located in power plant ducts. Often the baffles are designed as structural members that can support themselves and carry the loads of the burners.