What is a syringe pump? It is a machine that pushes the plunger of a syringe at a steady speed. This moves a small amount of liquid. Labs and factories use it. DK Infusetek pumps are not for medical use.

All facts here come from the DK Infusetek website. Each number belongs to one pump model. Read on to learn the parts, how flow is set, how exact the pumps are, and how to choose one.

What Is a Syringe Pump? A Simple Definition

Syringe Pump Definition in One Sentence

A syringe pump is a device that moves a syringe plunger at a set speed. The plunger pushes out a fixed amount of liquid. This is why it is called a positive displacement pump.

Lab and Industrial Use, Not Medical Use

Many syringe pumps are made for labs and factories, not for medical use. The ISPLab01-Pro page says "Non-medical use." DK Infusetek makes pumps for researchers and producers.

How a Syringe Pump Makes Slow, Steady Flow

Stepper Motor Drive: Movement in Tiny Steps

A stepper motor turns in small, exact steps. This lets the pump push liquid a tiny bit at a time. The ISPLab01-Pro has a stroke resolution of 0.078 μm/μstep. The SP60-8A has 6000 steps per stroke in standard mode. Its rated stroke is 60 mm. The CFSP-I/CU-I has a quiet design.

Lead Screw: Turning Spin Into Straight Movement

The rotation of a lead screw produces a linear motion. The drive is a motor and lead-screw arrangement, DK Infusetek says. It pushes the plunger at a specified speed. The smooth screw assists the plunger to glide smoothly.

Syringe Plunger: Where the Liquid Starts to Move

The plunger is the portion that pushes the liquid along. The ISPLab01-Pro has a plunger mounting design. Grips the syringe tight, keeping the run even-keel.

Main Parts of a Syringe Pump You Should Know

A syringe pump has four main parts.

Syringe Pump Parts and Their Jobs

The ISPLab01-Pro has a 4.3” color touch screen. It also has RS232/RS485 (Modbus RTU) so you can control it from something else.

Flow Rate Control: Why Syringe Size Changes Everything

The flow rate on the ISPLab01-Pro is the linear velocity times the inner cross-sectional area of the syringe. A broad nozzle will suck in more liquid at the same speed. A little syringe provides a slower, finer flow.

DK Infusetek Identifies 3 Factors That Affect Accuracy They are the syringe size, the motor and drive, and the calibration.

ISPLab01-Pro Plastic Syringe Chart

The ISPLab01-Pro additionally allows you to modify flow rate while it is running. You don't have to turn the pump off

Precision Fluid Delivery: What Accuracy Numbers Really Mean

An accuracy number is only valid if the rules of the test are followed. One number is assigned to each model. Don't confuse them.

Accuracy Numbers for Each Model

ISPLab01-Pro: the inaccuracy is < ± 0.3% for a stroke > 30% of the maximum stroke.

CFSP-I/CU-I: the stroke control error is < ±0.1% with a stroke > 30% of maximal stroke.

SP60-8A: Repeatability error is <0.2% and accuracy error is <1.0% (full stroke, deionized water).

The “30% stroke” guideline states that the plunger must travel at least 30% of its maximum stroke length. The number does not include shorter movements.

Safety Features on the ISPLab01-Pro

Blockage protection If the push portion is blocked, the pump stops and an alert sounds. Power-off memory useful following power failure. When power returns the pump either comes on or remains off depending on your settings.

Laboratory Syringe Pump: Features That Matter on the Bench

A nice example of a bench pump is the ISPLab01-Pro. It's a single channel unit with a stainless steel casing.

ISPLab01-Pro Key Specs

Fits syringes from 0.5 μL to 150 mL

Flow rate: 0.008 nL/min–165.871 mL/min

Linear force: 12–45 kgf, adjustable

Maximum stroke: 140 mm

Saves up to 60 common modes

Working modes: Infusion, Withdrawal, Infusion-Withdrawal, Withdrawal-Infusion, Continuous

Types of Syringe Pumps by Job

DK Infusetek sorts its pumps into four types.

Four Syringe Pump Types Compared

Syringe Pump vs Infusion Pump: The Quick Difference

A syringe pump pushes a plunger. An infusion pump moves fluid from a bag through tubing. The syringe pump suits small amounts of liquid and very slow, fine flow. The infusion pump suits large amounts and long, steady delivery.

Neither one is best every time. The right pick depends on volume, flow rate, and how long the job runs. DK Infusetek has a longer infusion pump vs syringe pump article.

Where Syringe Pumps Get Used Day to Day

People use syringe pumps in microfluidics, flow chemistry, battery work, coating, electrospinning, and dispensing. Life science and university labs use them too.

Application Examples From DK Infusetek

Electrospinning with the ISPLab series

LNP experiments with the SPM modular pump

3D cell printing

Coating with the SP60-1A industrial pump

You can read each story on the Application page.

How to Pick the Right Syringe Pump: A Short Checklist

Start with your flow range. Then check the pressure, the valves, and the controls.

Six Checks Before You Buy

1. Select a syringe size that matches your flow range.

2. Check pressure limit. The CFSP-I/CU-I and SP60-8A provide 0.68 MPa for the liquid route.

3. Choose a valve material compatible with your liquid. Both have a PCTFE valve body and a PTFE valve element.

4. Choose one or several channels.

5. See how you will control it, touch screen, RS232 or RS485.

6. Contact the manufacturer for pricing and delivery times.

About DK Infusetek: A Micro-Fluid Handling Specialist

Duko Industrial Technology (Shanghai) Co., Ltd. (DK Infusetek) It provides syringe pumps. Shanghai is the company’s headquarters and R&D hub. It is produced in the north of China.

The firm creates, engineers and manufactures equipment for microfluidic handling. Spec papers and video lessons may be found on product websites.

You may contact the team at sales@infusetek.com Address: No.355, Building B, Hongqiao World Center, Yinggang Dong Road, Qingpu District, Shanghai 201700, China

FAQs

What is a syringe pump used for?

A syringe pump pumps tiny volumes of liquid at a constant pace Applications include microfluidics, flow chemistry, battery, coating, electrospinning and dispensing, says DK Infusetek. Its pumps are meant for use in laboratories and manufacturing, not for medicinal usage.

How does a syringe pump work?

The plunger is driven by a motor and lead screw at a fixed pace. The plunger then pushes liquid from the syringe. Flow rate depends on how rapidly the plunger travels and the width of the syringe.

What is the lead screw in a syringe pump?

The lead screw is a bar that converts the motor’s spin into linear motion. DK Infusetek is calling the drive a motor and lead screw assembly. It moves the plunger at a fixed speed. This is the gradual constant flow of the pump.

Is a syringe pump the same as an infusion pump?

No. A piston is pushed by a syringe pump. Suitable for extremely slow and fine flow , and for little volumes of liquid. An infusion pump pumps liquids from a bag via tubes. It is suited to huge quantities and extended continuous distribution.

Can a syringe pump keep flow going when the syringe is empty?

A typical syringe pump needs to cease working when the syringe is empty. Continuous flow models are models in which the liquid flows continuously. CFSP-I/CU-I: 0.06-70 mL/min/μL. It is meant to transport microliter quantities of liquid without interruption.

Conclusion

Now you know what is a syringe pump and how it works. It pushes a plunger at a steady speed to move a small amount of liquid. Before you buy, make sure the syringe size, flow range, accuracy, and controls fit your job. 

Check each number against its own model. Take your time and look at a few models first. Duko Industrial Technology (Shanghai) Co., Ltd. makes pumps for labs and factories, not for medical use. For price or delivery time, email sales@infusetek.com.