STF: Micro Volume Adjustment Dispensing Pump


The STF1-9 is available in nine drive configurations ranging from 200 µL through 400 µL in 50 µL increments. Each drive model (STF1, STF-2…STF-9) has an adjustable displacement of ±25 µL. A supplied adjustment tool rotates an eccentric bushing to precisely make micro volume adjustments. There are also four standard pump head options available to provide a fluid path with maximum chemical and dispense volume/flow rate capability.

The STF1-9 Micro Volume Adjustment Dispensing is ideal for Medical, Analytical and Biotech Instrumentation.


  • Compact Size
  • Four (4) Pump Head Configurations provides both low volume dispensing and high flow metering for maxium chemical compatibility

Regulatory Compliance

RoHS Reach


Download Specs as PDF FMI Config Tool

Product Details

Shipping Weight:
0.76 lb. (0.34kg)
Operating Pressure Range (psig):
Operating Pressure Range (Bar):
Dispense Volume Range:
0.025-0.400 mL/rev
MIN Dispense Volume:
200-400 µL / Revolution
Motor Speed Range:
5-1000 rpm*
Flow Rate Range:
0.125-400 mL/min*
Motor Type:
1.8 ˚ Stepper Motor NEMA Size 17 Frame
Rated Current Phase: 2.0 Amp
Flow Rate Adjustment Range:
± 25 µL / Revolution from nominal dispense volume