If your looking for a heavy-duty, low maintenance stretch wrapper the Powered pre-stretch 77 series is the answer. With this easy to operate machine you load the 48" variable speed turntable, attach the wrap to the load, select a program, press start and walk away. The carriage raises and wraps the load until the photo electric eye senses the top of the load. When the top of the load is sensed a preset number of top wraps are applied. After the number of top wraps the film carriage then reverses itself and continues to wrap the load as it lowers. When it reaches the bottom the turntable stops in the same position that it started for easy unloading. The no-thread powered pre-stretch offers excellent load containment and the best in film savings.