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Products
  • Brand
  • FMI
  • Product Name
  • Fixed Displacement Pump “STF”
  • Item
  • STF
  • STF Fixed Dispense Pumps deliver highly accurate, repeat-able microliter dosing for OEM integration requiring speed, consistency, and long-term performance. Built on valveless CeramPump® technology, STF Pumps maintain accuracy without recalibration while supporting fast priming and simplified system integration.
    Designed for demanding OEM fluidic systems, STF Pumps provide consistent, repeatable dispensing across a wide range of operating conditions. Combining a patented fixed-link mechanism, integrated optical positioning feedback, fast priming capability, and wear-resistant sapphire-hard ceramics, STF Pumps deliver long-term reliability and stable performance with a service life that often exceeds the lifetime of the instrument.
     
  • PumpSpecifications
    WETTED MATERIAL OPTIONS:
    Ceramics: Alumina, Zirconia
    Pump Housing: PVDF, ETFE, Polypropylene Seals: PTFE, FKM, FFKM, Rulon AR, UHMW-PE

    PORT OPTIONS:
    1/4-28 UNF Threaded Ports,
    Barb Fittings (1/8” - 1/4” Tubing ID), 1/4” Compression Nuts

    DISPENSE VOLUME:

    For 5 - 10 µL              For >10 - 400 µL         
    Accuracy of ± 5%       Accuracy of ± 1%
    Precision (CV) ≤ 1%   Precision (CV) ≤ 0.5%

    Motor/Driver Specifications
    RATED CURRENT:              
    Rotational: 2.0 A                
    MOTOR FRAME:
    Rotational: NEMA 17 (43 mm)
    STEP ANGLE:                     
    Rotational: 1.8˚ Full Step    
    MOTOR SPEED:
    Rotational: Up to 1000 rpm
    MOTOR DIRECTION:  
    Rotational: Bidirectional, 
    Calibrated Clockwise       
    OPERATING TEMPERATURE:
    0˚C to 50˚C

     
  • High-Precision Fixed Dispense
    Delivers repeatable dispense volumes with tight accuracy, even at low microliter ranges.
    Fast Priming & Responsive Operation
    Enables rapid fluid movement and efficient system startup to support higher throughput.
    Consistent Performance Across Fluids
    Maintains stable operation across varying viscosities, temperatures, and chemical compositions.
    Precision Control & Long-Term Stability
    Patented fixed-link technology and optical positioning feedback ensures consistent dispense performance throughout the life of the system.
    Pressure Capability for System Flexibility
    Handles changes in back pressure, tubing configurations, and system demands with ease.
     
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