Syringe Pumps & Perfusors

Microfluidics and perfusion often need very low pulseless flows, while dosing may call for higher rates, so check the pump spans your range. A pump reaches its lowest flows with a small syringe and its highest with a large one, since flow depends on both drive speed and syringe bore. Note your minimum and maximum required rates. Give the seller those figures so they can confirm the pump and syringe combination covers them.

Each pump has a range of syringe diameters and lengths it can clamp and drive correctly. Using a syringe outside that range causes inaccurate flow or a poor fit in the holder. Check the maximum syringe volume and barrel diameter the pump takes. Ask the seller which syringes the listed pump is set up for so your consumables fit.

Flow smoothness depends on the drive resolution and the condition of the lead screw and motor. A fine step drive gives near pulseless delivery, which matters for microfluidics and gradient work. Worn mechanics can introduce small pulsations at very low flows. Ask the seller about the drive type and whether the mechanism runs smoothly across the range.

These pumps clamp and drive several syringes together at a matched rate, which suits parallel channels and replicate feeds. Confirm that the holder takes the syringe size you use across all positions. Some pumps also allow independent control of banks, so clarify the mode you need. The seller can describe how many syringes the listed pump runs and how they are controlled.

Financing is offered on qualifying listings, which helps when a multi syringe or specialised pump carries a higher price. Bring it up with the seller during your enquiry to learn whether the pump qualifies. Spreading the cost keeps capital free for syringes and consumables. The terms depend on the pump and the seller.