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The 50xx series piston pump is a precision piston pump independently developed by Keyto. Its main function is to achieve precision sampling and reagent addition.
The biggest advantage of a piston pump is the high precision and accuracy of suction and discharge: when the suction and discharge liquid is greater than 10%, the repeatability accuracy is less than 0.5%.
Secondly, the cavity of this series of piston pumps is transparent and the existence of internal bubbles can be observed. Its life span is more than 5 million times. The displacement range of 100μl-20ml can be achieved. The 50XX series piston pump is a high-performance, high-efficiency, maintenance-free precision pump. Different types of piston pumps has been widely used in chemiluminescence, biochemistry, POCT, urine sediment, environmental quality control instrument, laboratory and other industries for more than 10 years. Keyto stands out as a reliable piston pump manufacturer, providing high-quality solutions for diverse needs.
Maximum displacement volume(μL) | 50 | 100 | 250 | 500 | 1000 | 2500 | 5000 |
Plunger diameter (mm): | 2.24 | 3.17 | 5.01 | 7.08 | 10.01 | 15.84 | 22.39 |
Lead: 0.635(μL/step) | 0.0125 | 0.025 | 0.0625 | 0.125 | 0.25 | 0.635 | 1.25 |
Lead: 1.27(μL/step) | 0.025 | 0.05 | 0.125 | 0.25 | 0.5 | 1.25 | 2.5 |
Lead: 2.54(μL/step) | 0.05 | 0.1 | 0.25 | 0.5 | 1 | 2.5 | 5 |
Lead（mm） | 12.7 | ||||||
Lead: S Optional（mm） | S=0.635 or 1.27、2.54 | ||||||
Lead: 0.635 stroke/step（mm/step） | 0.003175 | ||||||
Lead: 1.27 stroke/step（mm/step） | 0.00635 | ||||||
Lead: 2.54 stroke/step（mm/step） | 0.0127 | ||||||
Life cycle1 | 5 million cycles | ||||||
CV2 | 1.2% | ||||||
Acuuracy3 | 2% | ||||||
Operating pressure（MPa） | 0.3 | ||||||
Connection | 1/4-28 UNF or M6 | ||||||
Chamber materials in contact with reagents(Optional)4 | PMMA、POM、PTFE、PCTG、PPS | ||||||
Notes： 1: If the working medium is a gas, please check with us. 2: The nominal CV is measured at 2% of the displacement. 3: The nominal accuracy is measured at 2% of displacement. 4: If other types of reagents are used, test verification is required. 5: Please contact the engineer for further information. | |||||||
Note: Please kindly reach out to our sales team for design and specification final clarification and confirmation.
End position optical detection. Optocoupler sensor can detect whether the pump is in the initial position of aspiration.
Various volumes available, nominal displacement: 50μL~5mL.
Extremely high and stable dosing aspiration and dispense accuracy over the life cycle of the pump. The following table shows the CV when tested with deionised water as the medium：
Aspiration and dispense volume as a percentage of total volume | CV |
2% | ＜1.2% |
>10% | ＜0.5% |
Piston full stroke: 12.7mm.
Advanced zirconia ceramic piston machining technology, rigorous inspection procedures, and unique sealing solutions ensure that the pump's service life can reach more than 5 million cycles with maintenance-free.
Good chemical resistance of the materials of the components in contact with the liquid medium: A variety of materials available to ensure chemical media compatibility; With different sealing structures to adapt to different working conditions.
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