Power-Packer’s manual multi-cylinder (MMC) hydraulic systems are designed to operate multiple movements within a wide range of applications. Our smart, straightforward systems allow you to select which cylinder to operate at any given time. An intuitive selector is integrated directly into the pump for the most compact, lightweight design possible. Choose a Power-Packer MMC system and you can combine a wide variety of single- and double-acting cylinders to create the optimal configuration for your specific need. All Power-Packer MMCs are designed for maximum life.