Mini Vacuum Air Pump

The 280 Model B is a compact, high-performance mini diaphragm air pump designed for low-voltage DC operation. This miniature pump delivers reliable air flow and vacuum capability in a lightweight, space-saving design. Powered by DC 3.7-5V, it’s perfect for portable applications requiring battery operation or USB power supply.

Featuring a durable diaphragm mechanism, this pump provides consistent 2.1L per minute air flow with minimal noise output of just 65dB at 30cm distance. The pump operates efficiently with a rated current of 0.75A, making it ideal for battery-powered projects. The 4mm outlet diameter allows easy connection to standard silicone or PVC tubing for versatile pneumatic applications.

Built for longevity with a tested lifespan exceeding 15,000 cycles, this pump can handle continuous operation in demanding environments. The vacuum capability reaches -58KPa maximum pressure, suitable for both air inflation and vacuum suction applications. The compact dimensions (40mm × 27mm × 24mm) make integration into small devices seamless. Ideal for aquarium aeration systems, portable inflatable devices, medical nebulizers, aromatherapy diffusers, DIY electronics projects, pneumatic automation, vacuum packaging systems, and laboratory equipment. The pump works with regular air and compatible gases. Perfect for hobbyists, makers, and engineers requiring reliable miniature air pumping solutions with USB-compatible voltage operation.

Specifications :

• Model: 280 Model B Air Pump
• Motor Type: DC Diaphragm Pump
• Rated Voltage: DC 3.7V
• Voltage Range: DC 3.7V – 5V
• Rated Current: 0.75A
• No-Load Air Flow: 2.1L per minute
• Maximum Pressure: ≤ -58KPa (vacuum)
• Outlet Diameter: 4mm
• Noise Level: 65dB (measured at 30cm distance)
• Applicable Medium: Regular air/gas
• Lifespan: 15,000+ cycles (10s intake, 20s exhaust)
• Dimensions: 40mm (L) × 27mm (W) × 24mm (H)
• Connection: 2-pin power connection
• Operation Type: Continuous duty capable
• Applications: Aeration, inflation, vacuum suction