LG-300 Dry Granulator for Basic Zinc Chloride

Dry granulation machines are suitable for pharmaceuticals, chemical products, additives, food, cosmetics, and more. In the pharmaceutical industry, they are widely used for processing various active pharmaceutical ingredients along with one or more excipients. Most of these powdered materials have inconsistent particle sizes, uneven density, poor flowability, and are prone to drying out. Therefore, granulation is necessary before tableting or capsule filling. The advantage of dry granulation is its low usage cost and its suitability for granulating drugs that are unstable under湿热 conditions.
The dry granulator uses a horizontal twin-screw to feed material to the rollers, allowing for easy adjustment of the feed rate, improving the uniformity of material distribution to the rollers, and increasing the friction between the material and the rollers. The special roller structure prevents water leakage during water cooling, ensures uniform cooling of the rollers, and reduces the likelihood of powder sticking to the rollers. The vacuum degassing device of the dry granulator removes air from the material, significantly increasing the output of the roller compactor, with efficiency improvements of 2 to 4 times. The granulation mechanism is mounted on a movable cart, using angled slats for granulation, making the process easy to perform. Additionally, replacing the screen is simple, and the machine chamber generates minimal heat. The entire dry granulator is fully enclosed, allowing for fully automatic operation without dust emission. The feeding, roller compaction, and granulation sections are easy to disassemble, clean, and reassemble, meeting GMP requirements.
The dry granulator is composed of components such as the feeding mechanism, tableting mechanism, hydraulic mechanism, frame, and electrical control system.
1、LG-300 Dry Granulator for Basic Zinc ChlorideFeeding parts
It consists of a motor reducer, a conical screw with variable pitch, and a hopper, which performs degassing and pre-compression of the material before forcibly feeding it into the tablet pressing component.
2、LG-300 Dry Granulator for Basic Zinc ChloridePressing Component
It consists of a motor, reducer, transmission shaft, bearing, pressure roller, and other components. The pressure roller is made of special stainless steel that is pressure-resistant, wear-resistant, acid-resistant, alkali-resistant, corrosion-resistant, and high-strength, and is processed through special heat treatment (solution treatment and surface ion nitriding). This ensures that the material, after being extruded by the pressure roller, forms a thin sheet with a certain strength and thickness.
3、LG-300 Dry Granulator for Basic Zinc ChlorideGranulation components
It consists of a motor, reducer, frequency converter, granulation mechanism, and screen mesh, among other components. The sheet-like material from the tablet pressing part is processed through two stages of granulation to produce the required granules. The upper granulation uses a blade-type mechanism, while the lower granulation employs a rotating cage type. The particle size is controlled by the mesh number of the screen. The screen mesh can be configured with (ф1.0mm, ф1.2mm, ф1.5mm, ф2.0mm).
4、LG-300 Dry Granulator for Basic Zinc ChlorideHydraulic components
The pressing device consists of an electric hydraulic station, two oil cylinders, high-pressure oil pipes, a shut-off valve, and a pressure gauge. The hardness of the formed product after pressing is controlled by the oil pump pressure, the feeding speed, and the rotation speed of the pressing wheel.
5、LG-300 Dry Granulator for Basic Zinc ChlorideElectrical control components
The electrical system uses a 220V two-phase power supply and consists of electrical components and circuits such as a frequency converter, PLC, and touch screen. It enables stepless speed regulation for feeding, pressing, and granulating.