Dual discharge tablet press: dual channel intelligent control · efficient tablet pressing

Double discharge tablet pressAnalysis of Working Principle

Dual channel synchronous suppression system

Adopting a dual pressure wheel/dual discharge port design, when the turntable drives 33 sets of stamping dies to rotate, the upper and lower punch rods move along the track in a regular manner, achieving a continuous process of "filling quantitative pressing sheet". A single rotation can press 66 tablets (with an efficiency increase of over 40% compared to a single discharge machine), suitable for the production of complex dosage forms such as double-layer tablets, sustained-release tablets, and irregular tablets.

Precision control: By adjusting the depth of the downward punch to control the filling amount (weight difference ≤± 2%), and adjusting the thickness and pressure of the tablet during the upward punch stroke, ensure that the tablet weight and hardness meet standards such as NY/T4439-2023.

Intelligent Control and Security Design

Integrated servo motor, pressure sensor, and dynamic graphic display system, supporting precise adjustment and electronic recording of pressure, filling amount, and speed.

Equipped with multiple protection functions (such as overvoltage automatic shutdown, abnormal vibration alarm) to prevent equipment damage or operational risks.

Key operating procedures and precautions

pre-production preparation

Equipment inspection: Confirm that the die has no cracks or deformations, the turntable and track are well lubricated, and the electrical system is normal. The cleaning period should be within 7 days to avoid residual powder affecting the quality of the tablets.

Installation and debugging: The middle mold needs to be coated with lubricating oil, then pressed into the mold hole and locked with screws; After the installation of the upper and lower punch rods, manual turning is required to check for jamming; The feeder needs to be connected to the eccentric feeding tube to ensure even filling of the powder.

Operating parameter setting and monitoring

Parameter adjustment: Set parameters such as filling depth, main pressure, and speed through the touch screen. For example, the adjustment of tablet weight needs to be combined with the intermediate inspection results, and if the deviation is greater than 5%, it needs to be adjusted; Hardness and brittleness must comply with pharmacopoeia standards.

Real time monitoring: During operation, it is necessary to observe the movement of the punch, the filling status of the material, and regularly check the weight, hardness, and disintegration of the sheet. Abnormal situations (such as vibration and abnormal noise) require immediate shutdown for inspection to avoid roof accidents.

Cleaning and maintenance

Post batch cleaning: Clean the surface and interior of the equipment with drinking water, purified water, and 75% ethanol, and disassemble the punch, middle mold, and other components for deep cleaning and disinfection. The punch needs to be coated with food grade lubricating grease for rust prevention and stored in a dedicated mold box.

Regular maintenance: lubricate the screw and guide rail, check the oil level of the hydraulic system, calibrate the pressure sensor and temperature controller to ensure long-term stable operation of the equipment.