Cambridge Scientific
Used Lab Equipment

Used Lab Equipment

We typically have used and reconditioned pumps in stock from leading manufacturers like Cole-Palmer and Watson/Marlow.

Harvard Apparatus: 1-2 of 2

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Harvard Apparatus 22 Syringe PumpImage Coming Soon

Harvard Apparatus 22 Syringe Pump

Cambridge Scientific ID #'s: 13820, 18357, 13819


The Model is an Infusion Only syringe pump employing a microprocessor controlled small step angle stepping motor driving a lead screw and half nut. A key pad is used for data entry of flow rate and syringe diameter. The microprocessor calculates the cross sectional area of the syringe to be used and calibrates the flow rate for that syringe. A number of special features result from use of microprocessor technology.



  • Type: Microprocessor multiple syringe, infusion or infusion/withdrawal
  • Size (H x W x D): 5.5 x 11 x 8.75 in (140 x 220 x 220 cm)
  • Weight: 10 lbs (4.5 kg)
  • Power: 115/230 VAC, 50-60 Hz via selector switch, 45 W
  • Drive Motors: 0.9° microprocessor controlled stepping motor
  • Timing Belt Drive: 2:1 reduction from motor
  • Lead Screw Pitch: 24 thread inch
  • Revolution of Lead Screw: [email protected]/4 stepping
  • Dynamic Speed Range: 16,384 to 1
  • Accuracy: ±0.035%
  • Reproducibility: ±0.05%
  • Calibration: Automatic, enter syringe size up to 50 mm
  • Syringe Size: 0.5 µ l to 140 ml
  • Display: 3-1/2 digit numeric LED, 7 LED indicators for range, diameter, Run/Stop and remote control
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Harvard Apparatus Pump 11 Syringe Pump

Harvard Apparatus Pump 11 Syringe Pump

Cambridge Scientific ID #'s: 11359, 18704, 13813, 13812


  • Single Syringe Holder
  • Flow Rate Maximum: 26.55 ml/min wih 50/60 ml syringe.4 ml/hr
  • Flow Rate Minimum: 0.0014 µl/hr with 0.5 µl syringe
  • Syringe Size Maximum: 50/60 ml
  • Syringe Size Minimum: 10 ul
  • Voltage Range: 95-240 VAC, 50/ 60 Hz
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