The History Of The Tablet Press

The tablet press appeared earlier in Europe and the United States, with a history of nearly one hundred years. In China, in 1949, the Tianxiang Huaji Iron Works in Shanghai resembled the British 33 punching machine; in 1951, it was converted into a domestic 18 punching machine according to the US 16 stamping machine. This is the earliest pharmaceutical machinery manufactured in China. In 1957, the ZP25-4 tablet press was designed and manufactured. In 1960, the 60-30 tablet press was designed and manufactured by itself. It has the functions of automatic rotation and tableting. The pressed varieties include tablets, sugar tablets and calcium tablets. , coffee tablets, etc. In the same year, the ZP33 and ZP19 tablet presses were also designed and manufactured.

In the 1970s, Shanghai No. 1 Pharmaceutical Machinery Factory (predecessor of Shanghai Tianxiang) and Shandong Medical Instrument Factory began to produce ZP series tablet presses as fixed-point manufacturers of tablet presses. During the "Seventh Five-Year Plan" period, the HZP26 high-speed tablet press of the Aerospace Department 206 was successfully developed. In 1980, Shanghai No. 1 Pharmaceutical Machinery Factory designed and manufactured the ZP-21W tablet press, which reached the advanced level in the early 1980s and was the first domestic product. In 1987, the company introduced the F3 company's microcomputer control technology, designed and manufactured the P3100-37 rotary tablet press, which has the functions of automatically controlling the weight, pressure, automatic chipping and automatic elimination of waste tablets. The closed structure is tight and clean. The degree meets GMP requirements. In 1997, Shanghai Tianxiang Jiantai Pharmaceutical Machinery Co., Ltd. developed the ZP100 series rotary tablet press and the GZPK100 series high-speed rotary tablet press.

In the 21st century, with the deepening of GMP certification, ZP series rotary tablet presses that are fully GMP-compliant have appeared one after another: ZP35A in Shanghai and ZP35D in Liaocheng, Shandong. The high-speed rotary tablet press has made great progress in the production, pressure signal acquisition, waste rejection and other technologies. The maximum output is generally more than 300,000 pieces / hour, the maximum pre-pressure is 20kN, and the maximum main pressure is 80kN or more. For example, GZPLS-620 series high-speed rotary tablet press of Beijing Sinopian Longli Technology Co., Ltd., GZPK3000 series high-speed rotary tablet press of Shanghai Tianxiang Jiantai Pharmaceutical Machinery Co., Ltd., and PG50 series high speed of Beijing Aviation Manufacturing Engineering Research Institute Rotary tablet press, etc.

With the improvement of the manufacturing process level, the automation control technology and the various special needs of the tablet press manufacturers, various special-purpose tablet presses have also appeared. For example, the laboratory uses ZP5 rotary tablet press, dry powder rotary tablet press for dry powder tableting, and explosion-proof ZPYG51 series rotary tablet press for gunpowder tablets.