Small and Micro Pumps for Air and Vacuum Applications

Thomas is a leading manufacturer of micro compressors, small liquid pumps, and micro air vacuum pumps, that can be used in diverse applications and industries. We serve OEMs in various sectors, including medical, laboratory, environmental, and more.

Thomas Micro Vacuum Pumps for Pressure and Vacuum

Our unique portfolio of micro air compressors and mini air vacuum pumps consists of units as small as a coin or a paper clip. Thomas micro pumps feature oil-free modular designs and deliver high efficiency across all technologies.

We offer micro pumps and compressors for both pressure and vacuum applications, utilizing diaphragm and rotary vane technologies.

Thomas micro diaphragm pumps are characterized by their operational water vapor tolerance and outstanding chemical compatibility.

Thomas micro rotary vane pumps are engineered to produce high vacuum levels with stable flow and minimal vibration or pulsation. Their compact design achieves an optimal size-to-performance ratio, giving users full control over pump functionality.

We offer compact AC and DC air pumps and compressors, featuring a range of motor options—from cost-effective brushed DC to high-performance brushless DC that offers efficient and quiet operation. Both our miniature air and liquid pumps can be configured in series or parallel, allowing customers to replace multiple competitive units with a single Thomas pump in portable or space-constrained OEM applications. For deep vacuum applications, select Thomas small diaphragm vacuum pumps that provide a flow rate ranging from 0.010 cfm (300 ml/min) to 0.58 cfm (16.5 l/min), and vacuum levels of up to 99% of the local barometer maximum, which translates to 1 mbar abs (29.2 in.Hg).

For liquid applications requiring high precision and no risk of cross-contamination we recommend our small liquid peristaltic pumps. These pumps are easy to use and maintain, and they offer flow rates ranging from less than 0.1 ml/min to 3,000 ml/min.

Thomas delivers innovative micro and small pump solutions engineered for seamless integration and ease of use. Our portfolio includes micro compressors and mini vacuum pumps that support a wide range of applications with reliable performance

Piston Pumps: Our piston pumps feature high-quality WOB-L® and articulating piston technologies, providing exceptional performance for demanding pressure and vacuum applications. These micro pumps are widely recognized as some of the most reliable solutions in the industry. Learn more about piston pumps technology.

Rotary Vane Pumps: Thomas small rotary vane pumps, including micro vacuum pumps and miniature vacuum pumps, utilize centrifugal force to compress the volume of the medium, creating pressure or vacuum efficiently. Learn more about rotary vane pumps

Diaphragm Pumps: Small diaphragm pumps and compressors operate using a flexible membrane driven by a crank to reduce the volume of the medium. These positive displacement pumps excel at handling both gases and liquids, making them ideal for a variety of industries and applications. Learn more about diaphragm pumps technology

Linear Pumps: Our linear diaphragm and vibrating armature pumps use electromagnetic forces to power a diaphragm or piston. These smallest vacuum pumps offer precision and efficiency while maintaining compact designs perfect for tight spaces. Learn more about linear diaphragm pump technology

Peristaltic Pumps: Small liquid peristaltic pumps use a rotating roller mechanism to compress and release flexible tubing, creating a gentle, pulseless flow ideal for precise liquid handling. These pumps are contamination-free, self-priming, and well-suited for dosing and metering applications. Learn more about peristaltic pump technology

At Thomas, we offer a cutting-edge portfolio of micro and small pump technologies designed for effortless integration and a user-friendly experience. From micro compressors to mini vacuum pumps, our solutions help you turn engineering challenges into opportunities across a broad spectrum of applications.

We utilize a selection of high-quality materials for the pump components based on a chemical resistance to the media being transferred. Our customers can choose from a variety of materials for diaphragm, pistons, valves, and tubings including EPDM, FKM (Viton), Silicone, NBR (Perbunan), PTFE (Teflon), depending on the model selected.

As a leading small pump manufacturer, we provide a level of customization that is second to none on the market with an extensive variety of small pumps consisting of 20 pump series. Combined with the various configurations that we offer, a pump can be selected from over 100,000 unit variations.