Do solids sink in your syringe during a slow run? The pump moves at a steady pace. However, the results of your sample are uneven. 

A stirring syringe pump supplier sells a pump that mixes liquid and pushes liquid simultaneously. A reputable pump provider will tell you how accurate it is. Both the flow and the stirring may be controlled. Safety features are also included. A nice example is the MIX60 by DK INFUSETEK.

This guide is for laboratory buyers and engineers who work with suspensions. You'll learn why solids settle and how to choose the correct provider. Additionally, you will learn what each MIX60 number means.

Why Suspensions Need More Than a Plain Pump

A liquid containing solid bits in it is referred to as suspension. These bits are large enough to sink. Infusetek says they are usually 0.1 μm to 1 mm in size. They do not disintegrate, so they drop to the bottom gradually.

The steady flow is maintained using a plain laboratory syringe pump. But it can't keep the liquid mixed in the syringe.

Where Settling Starts to Hurt Results

The worst is settling in on lengthy runs. Big bits make it worse, sink quickly. If they run sluggish, they have more time to fall. So the beginning and end of your run receive varying amounts of solids.

The similar issue was observed in a 2026 Scientific Reports study. The output was uneven because solids eventually sank in the syringe.

That is why a syringe pump for suspensions is a product of its own. On its laboratory syringe pump range page, Infusetek shows its stirring model in a separate group. It is kept apart from its intelligent and basic pumps.

How to Vet a Stirring Syringe Pump Supplier

A stirring syringe pump supplier matters as much as the pump. You depend on that company for clear data and help.

A good supplier shows you all the specs, drawings and videos. The MIX60 page from this stirring syringe pump supplier has all three. You get a spec table, an OSD section, a size drawing and a datasheet to download.

There are also two how-to videos. One shows the pump moving liquid. The other shows you how to put the syringe in.

Buyer Checklist for a Magnetic Stirring Syringe Pump

Accuracy: What the ±0.3% Figure Really Means

The MIX60 accuracy is Error ≤±0.3%. This only counts when the stroke is at least 30% of the full stroke. Ask any stirring syringe pump supplier how it got its number. When you compare a precision syringe pump, always read the small print.

Working Range of a 10 mL Syringe Pump

The MIX60 flow rate runs from 0.66 μL/min to 22 mL/min. The linear speed goes from 4 μm/min to 132 mm/min. You can use a 10 mL glass syringe with it. The longest stroke is 60 mm. So the MIX60 is a 10 mL syringe pump made for small amounts of liquid.

Infusetek's launch news says the MIX60 pushes liquid much like the ISPLab01 intelligent syringe pump. The main change is the stirrer it adds. Do you also need to pull liquid back in? Then look at the ISPLab01. It can push liquid out and pull it back in.

Calibration Keeps Delivered Volume Honest

Calibration checks that the amount you set is the amount you get. The MIX60 has a calibration step and online fine-tuning. Both help you get the volume just right.

Buyer tip: set the pump to the same syringe you put in. If the inner size is wrong, the flow will be wrong too, even on a precision syringe pump. Infusetek explains this in its guide on what affects flow rate accuracy.

Control Features That Save Setup Time

A syringe pump with stirrer is only useful if you can control both parts. On the MIX60, you can start or stop the syringe and the stirrer one at a time. You can also run them together.

Two Stirring Modes for Different Media

The MIX60 can stir in two ways: fixed position and reciprocating. In fixed mode, the stirrer spins in one place. In reciprocating mode, it spins and also moves back and forth along the syringe. That is how a reciprocating stirring syringe pump mixes all of the liquid.

The stirrer can spin at 25 rpm to 460 rpm. It can move at 1.6 mm/s to 40 mm/s. As the liquid gets lower, the pump changes how far the stirrer moves, all by itself. Read how in-syringe magnetic stirring works to learn more.

Programmable Steps for Multi-Stage Runs

You can set up to 20 working steps on the MIX60. So one programmable syringe pump can do a job with many stages. The View Steps screen shows all the settings you have made.

You use the pump through an industrial grade 4.3" LCD color display. You can tap the touch screen or press the keys on the keypad.

Safety Guards That Protect Glass and Data

The MIX60 has safety features built in. They keep the glass syringe safe and help your run finish well.

Protection Features at a Glance

If a line gets blocked, you could lose your run and break a syringe. A stirring syringe pump supplier that adds these alarms helps you stop that from happening.

MIX60 Specifications Buyers Should Compare

Here are all the specs for this laboratory syringe pump. We copied them from the MIX60 page just as they are. Use them to compare this pump with one from any other stirring syringe pump supplier.

MIX60 Technical Parameter

Where a Syringe Pump With Stirrer Fits Best

A syringe pump with stirrer works best when the liquid has solids in it and the run is slow. Infusetek says the pump suits work in pharmacy, biology, chemistry and energy. A 2023 PLOS One study found the same need when working with cells.

Typical Suspension Applications

When Infusetek launched the MIX60, it named these common uses:

Electrolytes

Electrodes

Pharmaceuticals

Injecting cells

Pesticides

Do you work with heavy solids on long runs? Then a reciprocating stirring syringe pump is often the better pick.

When the MIX60 Is Not the Right Fit

Skip the MIX60 if you need to pull liquid back in. It can only push liquid out. It is a syringe pump for suspensions. If your liquid is clear, it adds little, so a plain pump is the easier choice.

Inside DK INFUSETEK: Focus, R&D, Production

Factory Introduction

DK INFUSETEK is the brand name of Duko Industrial Technology (Shanghai) Co., Ltd. Its main office and research center are in Shanghai, China. You can learn more on the DK INFUSETEK company profile page.

Factory Scale

The company's factory is in northern China. It makes four kinds of syringe pumps: laboratory, continuous flow, modular and industrial. It also makes accessories for them.

Focusing on One Area

The company sticks to one field: moving very small amounts of liquid. This is called micro-fluid handling. The company designs, builds and custom-makes tools for this work. As a stirring syringe pump supplier, it can also make a model for other syringe sizes if you ask.

FAQs

What does a stirring syringe pump do?

A stirring syringe pump pushes out liquid and keeps it mixed at the same time. A small stirrer inside the syringe stops solids from sinking.

Your first and last doses stay the same

It works as a syringe pump for suspensions

Can the MIX60 withdraw liquid?

No, the MIX60 can only push liquid out. It cannot pull liquid back in.

Plan how your liquid will flow before you order

Need both? The ISPLab01 can push and pull

What syringe size does the MIX60 use?

The MIX60 uses a 10 mL syringe, and you can get a 10 mL glass syringe for it. It is a 10 mL syringe pump with a longest stroke of 60 mm.

Flow rate: 0.66 μL/min to 22 mL/min

Need another size? Ask for a custom model

How accurate is the MIX60?

The MIX60 accuracy is Error ≤±0.3% when the stroke is at least 30% of the full stroke. Calibration and fine-tuning help you get the volume right.

Always check the test condition on a spec sheet

Set the pump to the same syringe you put in

Can the stirrer run without the pump?

Yes, you can start or stop the stirrer and the syringe one at a time. You can stir without pushing, or push without stirring.

It works as a reciprocating stirring syringe pump or in fixed position mode

It is also a programmable syringe pump with up to 20 steps

Where is DK INFUSETEK based?

DK INFUSETEK is based in Shanghai, China. Its main office and research center are there. Its factory is in northern China.

It makes the MIX60 magnetic stirring syringe pump

It focuses on moving very small amounts of liquid

Conclusion

Look for an accuracy number that says how it was tested, like ±0.3% at a stroke of 30% or more. Make sure you can run the pump and the stirrer alone or together. Check for alarms, limit stops and power-off memory to keep your work safe.

Do you move liquids with solids in them on slow runs? Then Duko Industrial Technology (Shanghai) Co., Ltd. (DK INFUSETEK) is a good stirring syringe pump supplier to look at. The MIX60 magnetic stirring syringe pump pushes liquid like a precision syringe pump. All of its specs are easy to find online. Talk to the Infusetek sales team about your work, or ask about other syringe sizes.