DC 5V 6V Micro Peristaltic Dosing Pump | 500 Motor Lab Pump

DC 5V/6V Micro Peristaltic Pump with 500 Metal Brush Geared Motor

This compact micro peristaltic pump is powered by a DC 5V or 6V metal brush 500-series geared motor, making it an ideal choice for DIY enthusiasts, hobbyists, and laboratory experimenters. Designed to handle both viscous and non-viscous liquids — including ink, water, and other fluid media — this dosing pump delivers reliable, consistent liquid transfer through a gentle squeezing action on its internal silicone tubing.

Made in Mainland China.

How It Works

The pump operates via three internal rollers that alternately compress a silicone tube, creating a peristaltic action that moves liquid through the system without direct contact between the fluid and the motor components. The 500-series DC motor supports both forward and reverse rotation, giving you the flexibility to control the direction of liquid flow. This makes it suitable for dosing, sampling, liquid dispensing, and experimental setups.

Key Features

• Dual Voltage Support: Operates at DC 5V (0.3A) or DC 6V (0.35A) for versatile power compatibility
• Metal Brush 500 Motor: Capable of forward and reverse rotation for bidirectional liquid flow
• Three-Roller Pump Head: Smooth peristaltic squeezing action for consistent liquid transfer
• Wide Liquid Compatibility: Suitable for viscous and non-viscous fluids including ink, water, and similar lab liquids
• Plastic + Metal Construction: Durable build designed for DIY projects, lab testing, and experimentation
• Compact & Lightweight: Ideal for integration into small-scale devices, Arduino projects, and benchtop setups
• DIY-Friendly Design: The pump head cover can be carefully pried open to reposition internal plastic retaining particles if needed

Specifications

Usage Tips

For best results, always use the end of the pump with the plastic retaining particles as the inlet. This prevents the silicone tube from being displaced by the roller pressure, which could cause the pump head to jam. If reverse flow is required, the pump cover can be carefully opened to manually reposition the retaining particles.

Perfect For

• Laboratory liquid sampling and dosing
• Ink transport and dispensing systems
• Arduino / Raspberry Pi DIY projects
• Small-scale aquarium dosing systems
• Educational experiments and prototyping

Looking for other electronics components and hardware accessories? Check out our 10-Pack Waterproof Cable Glands PG7 PG9 Nylon Connectors or our 25-in-1 Precision Magnetic Screwdriver Set for your next project.

Note: Product colour may vary slightly from images displayed on screen due to monitor brightness and lighting conditions. Please refer to the actual product received.

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What liquids can this micro peristaltic pump handle?

A: This peristaltic pump is designed for both viscous and non-viscous liquids, including water, ink, and similar lab-grade fluids. Because the liquid only contacts the internal silicone tube and not the motor components, it is suitable for a broad range of liquid transfer applications in DIY and laboratory settings.

Q: Can the pump run in reverse to change the flow direction?

A: Yes — the 500-series DC motor supports both forward and reverse rotation. However, it is strongly recommended to always use the end of the pump with the internal plastic retaining particles as the inlet side, regardless of flow direction. This prevents the silicone tube from being displaced and the pump head from jamming. If you need to reverse the inlet/outlet, you can carefully open the pump head cover and reposition the plastic particles manually.

Q: What power supply do I need for this peristaltic pump?

A: The pump operates on DC 5V at 0.3A or DC 6V at 0.35A. It is compatible with standard USB power banks (5V), regulated lab power supplies, or Arduino/microcontroller power sources. No batteries are included.