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Si Da Precision Star Micronics develops diaphragm pumps
Star Micronics has introduced the SDMP301, a diaphragm-type micro pump that utilizes piezoelectric elements for operation. Unlike traditional pumps that rely on motors and shafts, this design eliminates those components entirely, resulting in significantly reduced power consumption. The SDMP301 controls both flow rate and discharge pressure by adjusting the drive voltage and frequency, making it highly adaptable for various applications. It can achieve a maximum flow rate of 1.5 mL/min and a maximum pumping pressure of 55 kPa, offering reliable performance in compact systems.
The SDMP301 is considered an improved version of the earlier SDMP205, released in October 2004, and shares the same internal structure as the SDMP305, launched in August 2005. This pump uses a built-in diaphragm that mechanically oscillates to create volume changes, enabling the efficient transport of both liquid and gas. Its compact and lightweight design—measuring 25 x 25 x 4.8 mm and weighing approximately 4 grams—makes it ideal for integration into small devices.
Primarily intended for use in fuel cells powering laptops and PDAs, the SDMP301 represents a significant advancement in micro-pump technology. Its energy efficiency, small size, and high performance make it a valuable component for portable and low-power applications. Whether for research, development, or commercial use, the SDMP301 offers a versatile and reliable solution for fluid handling in miniaturized systems.