Positive Displacement Syringe Pumps

The Hamilton syringe pumps are typically used in liquid-filled sub-system applications to precisely transfer samples and reagents, do bulk dispensing and enable processes where accurate dispenses are a must. Two important qualities of syringe pumps are that they positively displace liquid and are generally easy to service.

Positive displacement enables users to dispense liquids with high accuracy and precision. Due to the incompressibility of liquid, syringe pumps are normally not impacted by liquid and environmental factors like surface tension, viscosity, humidity, hydrostatic pressure and barometric pressure

Syringe pumps can also be used in conjunction with a disposable tip to perform air displacement pipetting. The liquid in the lines becomes a system fluid that draws liquid into the tip and then dispenses. There are three benefits to this arrangement. First, if there is a concern about cross-contamination, the disposable tip can be thrown away. Second, if bulk reagent is needed for multiple dispenses of the application, the syringe pump can provide it. Third, the system fluid can be used as rinse liquid.

Superior form and function saves you money

Hamilton designs and builds each element of the fluid sub-system including the syringe, valve and pump. This integrated manufacturing process guarantees perfect compatibility between the components and results in superior performance of the whole unit, even in high throughput applications. The pumps’ exceptional reliability results in reduced warranty repair costs and increased potential maintenance contract profit for you.

PSD pumps maximize syringe life because the syringes are made to precisely match the alignment and structure of the pump. And since Hamilton syringes are proven to last longer with no loss of performance, they can be replaced less often which increases profit in offered instrument maintenance contracts.

PSD/4 Half-Height Syringe Pump


The PSD/4 is the most precise of all Hamilton syringe pumps. It is a popular choice for customers looking for a more economical alternative to the PSD/3 who do not require the PSD/3 syringe pump’s distinctive features.
PSD/3 Half-Height Syringe Pumps


At just 4.75" x 4.5" and 2.1 lbs., the PSD/3 is the smallest and lightest Hamilton syringe pump. The PSD/3 also offers the slowest and smoothest flow rates thanks to its pulseless Servo motor. This pump is capable of dispensing a single stroke over 60 minutes as a standard feature, although longer single stroke dispensing times are possible through customization. This feature is especially useful in applications where careful, minute liquid delivery is vital.
PSD/2 Full-Height Syringe Pump


The PSD/2 is the most mature syringe pump within the PSD family with more than 20 years of well-documented success. It accommodates the largest syringe volumes and offers some of the least expensive sub-components.
PSD/8 Full Height Syringe Pump


If you have a demanding system or process that requires powerful liquid handling, then this is the pump for you. The PSD/8 is the strongest and fastest pump available from Hamilton Company. The PSD/8 has nearly 10 years of reliable, precise experience in the most strenuous situations.
Found: 11 Products
Part Number
Description
Unit Price
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PSD/2,5V 24V,HVX VALVE DRIVE
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PSD4,SYRINGE PUMP,ADJ,STD,ROHS
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PSD/3 SYRINGE PUMP W/VLV DR
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Demo Communication Cable for PSD/2
120.00
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Demo Communication Cable for PSD/3
120.00
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Demo Communication Cable for PSD/8
120.00
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HVXI 4-5 VALVE
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HVXI 3-5 VALVE
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PSD-4/8 Starter Kit
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PSD/8 SYR PUMP,SHORT STEM HV
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Other benefits of liquid-filled positive displacement systems include:

  • Large dispense range from 50 mL to nanoliters
  • Inert fluid path manages harsh chemicals like concentrated acids, bases and volatile organic solvents
  • Faster bulk dispensing compared to air displacement pipetting because sample does not need to be picked up from one location and transferred to another
  • The valves, syringes and tubing can be exchanged in minutes, simplifying periodic maintenance service
  • Continuous multiple dispenses of the system liquid
  • Multiple syringe pumps can be daisy chained (i.e., aspiration of one syringe while the other dispenses) to increase throughput
  • Ability to use syringe pump valves to sample-inject into higher pressure carrier fluid
  • Can be used to manage consistent flow rates in microfluidic applications


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