Model R-ES

Specifically designed to introduce a fluid at a precise reproducible flow rate from a readily available syringe, this model adds the convenience of remote operation to our popular R-E syringe pump model. Its unique size, its extreme durability, and its simplicity to operate, make this Razel pump the instrument to use in basic research and many other applications.

Note: Please refer to chart for motor/voltage compatibility.

Product Options

You just added "Model R-ES ( )" to your quote request.

My Quote Request       Continue Browsing
  • Optical isolated remote operated by DC ground, TTL logic “0” or switch closure.
  • Single speed stock synchronous motor.
  • Stop switch disconnects power when the plunger reaches the end of the syringe.
  • Most economical option available.
  • 17 interchangeable motors available from 0.008 - 20 RPM.
  • Repeatability within 2%.
  • Stainless steel and aluminum frame

Infusion Rate

See chart above.

Pressure Limits
Accurate flow up to:

  • 10 psi or 517 mm/hg with a 50–60cc syringe
  • 14 psi or 724 mm/hg with a 30–35cc syringe
  • 20 psi or 1034 mm/hg with a 20cc syringe
  • 40 psi or 2069 mm/hg with a 10cc syringe


  • 3 wire grounded plug
  • 30 watts @ 230V 50 Hz
  • 30 watts @ 115V/60Hz
  • Less than 25 microamperes current leakage


  • Weight: 3 pounds
  • Size: 3.25” high x 3.25” wide x 9” long



  • R-ACC, Micro Syringe Insert
  • R-ACC-6, Multi Micro Syringe Adapter