A. Application 1. Pharmaceutical: Chinese tablets, Western medicine, plain films, chewable tablet, calcium tablet, buccal tablet, propolis tablet (bee propolis tablet), spirulina tablet, effervescent tablet, pioneer, camphor ball etc. 2. Foodstuff: Candy pieces, flake coffeel, chicken essence chunk, seasoning chunk, clucose tablet, milk powder candy etc, . 3. Agriculture: Wafered feed, fertilizer chunk, animal food etc, . 4. Chemical: Bleaching powder, ceramic powder, powder metallurgy, magnetic materials, antiseptic, powdered carbon, molecular sieve etc, . 5. Electronic: Carbon brush, button cell, electronic component etc, . B. Introduction and Features 1. This tablet press machine is designed for pressing tablets form various kinds of granular materials. As its feature, the machine can press not only round tablets but also different geometrical shape tablets, double-layered and annular tablets. The tablets may have the impressed letters on both sides. 2. The turret carries 21 sets of movable punches and dies. Rotating a circle it can suppress 21 tablets. During operation, the speed of the turret rotation, the depth of the filling material and the thickness of the tablets can be adjusted. The pressure for tablet pressing is set by the hydraulic drive system. A pressure gauge is attached to the system to show the pressure value. An overload protection unit is included in the system to avoid the damage of the punches and apparatus. When overload occurs, the machine stops running automatically. 3. An independent power-sucking unit is attached to the machine. It takes in the residual powder through its suction tube and hoses during operation so that the blockage by clustered powder is eliminated and the collected powder materials can be reused. The speed for ZPW21B is adjusted by frequency conversion.