Roll compactor is designed for the densification by compacting powder for the pharmaceutical & bulk drug industries in particular and food & chemical industries in general. In roll compactor feed screw is sleeplessly driven through variable frequency controlled speed drive. Mechanical and electrical safety devices are included for operator's safety. A double output shaft gearbox, with step pulley drive and the necessary couplings, drives the rolls. The double output shaft gearbox ensures synchronization of the rolls and an equal distribution of the torque to the rolls. The feed screw assembly can be hydraulically lifted by hand operated hydraulic pump and swung aside. This facilitates easy access and cleaning of all parts having contact with the product. Pre-compaction chamber guides the product to rolls without any slippage or leakage.