Enerpac Hydraulics [India] Pvt. Ltd. Manufactures Single-Acting Lock Nut Aluminum Cylinders, in the RACL-series. Enerpac Hydraulics [India] Pvt. Ltd offers high-force tools, equipment and accessories applicable in industrial markets. The Lock Nut in these Aluminium Cylinders is designed to hold mechanical load for an extended period. Handles are equipped with every model of cylinders. They are also incorporated with steel base plates and saddles to give protection against load-induced damage. These Single-Acting Lock Nut Aluminum Cylinders come with the following key features: