The E/HLT trolley is created with heavy chamber loads in mind. The adjustable height allow the trolly to be comfortably loaded and then with the push of an electric button or the hydraulic foot pump raised to the level of the chamber. With the electric model you can preset height settings so you aren’t constantly adjusting from one machine to the next. On the trolley guide rails there are location blocks that make sure that they match up with the chamber rails. Once in place the trolley is locked down manually to the vessel so that there is the least amount of movement in the carriage transfer from trolley to chamber. Once the carriage has been safely moved, the user unlocks, removes, and reloads the trolley. Height is adjustable and this is a good choice for items that are heavy.