UMP3 UltraMicroPump

Item#: Make Selection

UMP3-3, UMP3-4

  • Versatile UMP3 microsyringe pump injector that uses micro syringes to deliver microliter and nanoliter volumes
  • Syringes are easily installed, just snap the barrel into the clamps
  • Threaded shaft drives syringe plunger allowing smooth and accurate movement
  • Choose system: 3 Pumps and Micro4 controller (UMP3-3) or 4 Pumps and Micro4 controller (UMP3-4)
  • See Details for part numbers and descriptions

Unit Price: varies



For pricing, Customers outside of the US and Canada, please Contact your distributor

Click here to view the current Data Sheet.


Part # Description Micro4 Controller
UMP3 Single UMP3 Pump Head only No
UMP3-3 Three UMP3 Pumps with Controller Yes
UMP3-4 Four UMP3 Pumps with Controller Yes


UMP3 includes the pump head only. For controller information, see Micro4.

Nanoliter volumes

With its digital controller, UltraMicroPump III can dispense as little as 600 picoliters per incremental advance of the syringe piston (using a 0.5μL syringe). Syringes may be filled externally and then inserted into the pump or filled while mounted in the pump. Fluids injected or withdrawn are held entirely within the micro syringe to maintain a low fluid dead volume in the micropump.


For positioning, the UltraMicroPump III may be attached to any of several WPI micropositioners such as the M3301 (manual), DC3001 (motorized), or any manual stereotaxic manipulator.

Smart Controller

An Integral component in the UMPIII system is a microprocessor-based controller, MICRO4, which provides an "intelligent" and easy-to-use interface to up to four syringe pumps. Operating parameters are set with the membrane key­pad and LCD display. From the key­pad you can select the following functions:

  • set pump to infusion or withdrawal mode
  • enter the volume to be infused or withdrawn, rate of delivery, and syringe type
  • synchronize the starting and stopping of any combination of syringe pumps

User parameters can be stored in the controller's "non-volatile" memory for instant recall when the unit is powered on. An optional footswitch can be plugged into a connector on the rear of the controller for "hands free" start/stop operation.

Computer Control

An RS-232 port on the rear of the controller can be used to connect it to a computer for use with computer control programs.

The 503207 kit is ideal for working with an UMP3 as shown below.

503207 kit is ideal for working with an UMP3

UMP3 Instruction Manual

Syringe Volume Calculation Spreadsheet - Use this .XLS spreadsheet to calculate the volume of your syringe when you are using an UMP3, DMP, MMP or PV820/PV830.

Normal Mode

Total # of Steps 20,000(63mm travel)
Minimum Dispensing Volume 0.58nL/step (10μL syringe)
Linear Motion per Step 3.175μm
Weight 325g (11.5 oz.)
Mounting Rod Diameters 7.9mm (0.31 in.)
Controller Power Requirements 2A, 12VDC
Dimensions Ø32mm x 190mm (1.3 in. x 7.5 in.)

Microstepping Mode

Precision is increased eight fold.

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The following accessories are available for use the UMP Ultra Micro Pump

15867 Footswitch for Micro4
40500 RS-232 Cable, 9-pin "D" connector
502201 V-clamp for Stereotaxic Frame
503301 10' Extension cable
503207 FrameWorks V-Base Kit - Small


The following images show various setups for microinjection. Keep in mind that parts are interchangeable. For example:

  • M10 or the M9 magnetic base could be used.
  • PZMIV microscope could be used instead of the PZMIII.
  • M330l or the KITE micromanipulators can be used, and these micromanipulators can be placed on either side. (Keep in mind, though, If you wanted to use a KITE on the right side of the setup below, you would order a KITE-R (right hand), or if you want an M3301 on the left side, you would order an M3301-L.)
  • 5479 or 5052 magnetic bases are virtually interchangeable.
  • One or two Nanoliters, one or two UMPIII systems, or one Nanoliter and one UMPIII may be used, as desired.






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