Micro gear pump
https://www.suofupump.com/Micro-Gear-Pump-A-Compact-Solution-for-Precision-Fluid-Transfer-id03477545.html

A� micro gear pump� is a compact positive displacement pump designed for accurate and stable liquid transfer. It uses rotating gears to move a fixed amount of fluid with each revolution, making it suitable for applications that require precise flow control, low pulsation, and repeatable dosing.
Compared with general miniature pumps, a micro gear pump provides better flow stability and is often used in systems where accurate liquid delivery is critical. It can be integrated into medical devices, analytical instruments, laboratory equipment, cooling systems, semiconductor processes, and industrial automation equipment.
For manufacturers who need compact size, stable performance, and reliable fluid control, a micro gear pump is an effective solution for precision fluid transfer.