Earlier in the day, while browisng the internet, I stumbled upon the website of this cool company which sells Gantry Heavy Lift cranes. I particularly like this site becasue they offer quite a few models for customers to chose from. I particularly like the SL series as opposed to the ISL model. With the absence of a traversing hook, the SL model, unlike the ISL model, is compact and at the same time is able to maintain a consistent load stability. To buy a SL model Gantry crane or to buy other models of heavy lift cranes, do check out the product offerings at shuttlelift.com