PacMar extractors are very simple mechanical wise. It has only 2 turning action and 1 short linear movement. The simplicity makes it very easy to use and very easy to maintain. It also make PacMar extractors extremely durable. Most of all, they are outrageously economical. For instance, the initial investment for a model JSE-2 (for 500 ton machines) is only about 4 months wage of your entry level die cast operator.