April 6 - Cortland Company was chosen to supply synthetic rope slings for a sensitive lifting and lowering project in Cleveland, Ohio, USA.
The company's Plasma synthetic rope slings were used in a construction operation called Project Clean Lake, which involves the extension of sewerage systems to reduce the volume of rainwater and contaminates entering Lake Erie during emergency overflows.
A 495-tonne boring machine was lifted from a self-propelled modular transporter (SPMT) onto a gantry lift system, before being lowered underground. This operation was completed by Ohio-based PSC Crane and Rigging. The lifts were executed over a ten-hour period in freezing temperatures.
Brooks Nunley, technical sales and key account manager for Cortland said the 12x12 rope slings provide a range of logistics, job-site storage and safety benefits during projects. Their light weight means that the synthetic slings can he handled with greater ease than steel or round sling alternatives. Cortland says the 12x12 Plasma rope sling is seven times lighter than an equivalent strength wire rope and about half the size of a round sling.
Richard Miller, lifting specialist on this project, said: "We have been aware of Plasma rope slings as a lifting and lowering solution since they were used in a testing environment several years ago. It was obvious that they were easier to handle and rig than wire alternatives. Recent use has shown that they far out last synthetic slings on the market and we were satisfied with the positive outcome on this complex application."