KDS 270 Push/Pull Syringe Pump

KD Scientific KDS 270 Push/Pull Syringe Pump
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Continuous Cycle Syringe Pump

The KDS270 can hold up to four syringes and can cycle continuously back and forth in a push-pull action. As two syringes are infusing, two syringes are withdrawing at the same rate. At the end of the set volume the direction is automatically reversed and the next cycle begins. With the use of 3-way valves the pump can empty and refill syringes for a continuous dispense.

  • Holds four syringes, 10 µl to 60 mL each, With larger syringes the full volume may not be useable. [60 mL syr - 40 mL useable, 30 mL syr - full]
  • Backlit LCD display
  • Knob locks/unlocks drive block for effortless, drag-free adjustment
  • Simple menu-driven setup:
    • select syringe size from displayed table
    • dispense volume
    • dispense flow rate
  • Continuous dispense volume display
  • Preset volume control and automatic shut-off
  • Settings can be reviewed or changed during operation
  • Stall detection
  • Choice of unit selection
  • Last settings stored in permanent memory
  • Built-in RS232C interface for computer "daisy chaining" up to 100 pumps
  • TTL interface for foot switch, timer, relay control, outputs for run indicator, valve control.
  • Optional multi-step keypad programmable feature (KDS270P)


Pump Type Continuous Flow
Max. No. of Syringes Four
Syringe Size 10 µl to 60 mL
Dimensions 28 cm x 23 cm x 14 cm (11" x 9" x 5.5 ")
Weight 9 lbs. (4 kg)
Linear Force 40 lbs (18 kg)
Advance Per Microstep 0.165 micron (1/16 step)
Maximum Step Rate (1/2 Step) 1600/sec
Minimum Step Rate 1 step/100 sec.
Accuracy +/-<1%
Reproducibility +/-0.1%
Audible Alarm Optional

Part No. Description Price
780270 "KDS 270 Continuous Pump, KDS 270 , 110V" $4122.00
780272 KDS 270 Continuous Pump Programmable, KDS 270P, 110V $4725.00