Pumps and Accessories

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PMST200 Stepper Peristaltic Pump


3.0 amp per phase stepper motor pump

Improved pump head with 2, 3, 4, or 6 roller positions

Direct drive, OEM design, NEMA 17 motor

8 stock tubing materials in stock to match your application

Compatible with many chemicals and aggressive fluids

Can pump slurries with high particulate content

Pump head can be disassembled for tube replacement

Self-priming, panel mount, made in the USA

Excellent dry running characteristics

Fluid only contacts the inside of the tubing

Not suitable for high duty cycles

Stepper motor controllers sold separately, see Shop Accessories

PMST200 Stepper Peristaltic Pump

  • VDC input determined by motor controller
  • NEMA 17, 4 stack, 4 lead, high torque motor
  • 3.0 amp per phase stepper motor
  • Maximum suction lift: 15 feet
  • Dimensions: 3.675 x 3.000 x 3.000 inches
  • Maximum psi for firm tubing: 25
  • Maximum psi for soft tubing: 10
  • Weight: 19.6 ounces
  • Normally, stepper motor driven pumps are used in very low flow applications. For this reason, the flow rates below are given in milliliters per revolution. The motor controller, tubing type and size, fluid viscosity, number of rollers, input voltage, and back pressure will determine actual flow rate, psi and current consumption.
  • Maximum flow rates using 3 rollers:
    • PMST200 3/16″ ID Tube 1.00 ml/revolution
    • PMST203 1/8″ ID Tube 0.50 ml/revolution
    • PMST216 1/16″ ID Tube 0.10 ml/revolution
  • 350 maximum recommended RPM