SU-MPC325 Motorized Micromanipulator Systems

Order code

An economical alternative to the full-featured micromanipulators

  • Highly stable for experiments intolerant of pipette drift
  • Submicron (62.5 nm) minimal resolution for fine movement
  • Convenient thumbwheel selects resolution/speed of movement
  • 25 mm of motorized travel on all three axes


Order code Controller # of Manipulators
SU-MPC325 (1) MPC-200 Controller (1) SU-MP225 Manipulator
SU-MPC325-2 (1) MPC-200 Controller (2) SU-MP225 Manipulators
SU-MPC325-3 (2) MPC-200 Controllers (3) SU-MP225 Manipulators
SU-MPC325-4 (2) MPC-200 Controllers (4) SU-MP225 Manipulators
SU-MP225 Table top controller with extended ROE (1) SU-MP225 Manipulator 
505086 NONE (1) SU-MP225 Manipulator 


  • SU-MP225 includes manipulator, table top controller unit, extended ROE, cables, rod holder, 4" dovetail extension, mounting adapter plate, screws, hex wrench, power cord and manual
  • 4th axis for coaxial movement of pipette, angle selected by DIP switches on ROE
  • ROE button press actuates move to Home position for pipette exchange
  • ROE button press actuates move to Work position near recording location
  • Continuous display (in microns) of axes positions located on ROE
  • DIP switches on ROE select direction of movement produced by turn of ROE knob
  • Modularized, compact design easily adaptable to your setup
  • Universal mounting system for headstage or pipette holder
  • Mounting adapters included with manipulator


  • Positioning patch and intracellular recording pipettes

The SU-MP225 represents an economical alternative to the SU-MP285 and SU- MPC365. In 2002, production and design changes allowed us to produce this motorized manipulator as a more affordable alternative to the industry standard SU-MP285. While the SU-MP225 feature set is less comprehensive than the SU-MP285, it includes the most popular features with an efficient user interface. The mechanical design utilizes a miniature stepper motor and integral anti-backlash gear head. Pre-loaded ball bearing slides provide smooth movement throughout the 25 mm of travel. The controller uses low-noise, linear-drive output circuitry identical to that found in the SU-MP285. The methodology for mounting pipette holders and headstages used with the MP-285 has been maintained in the SU-MP225 to allow for cross compatibility.

The SU-MP225 is designed primarily for positioning patch and intracellular recording pipettes. We have retained and refined the features most desired for this type of work. An extended version of the popular rotary optical encoder (ROE) is the sole input device available with the SU-MP225. Like the SU-MP285, the manipulator has a synthetic 4th axis for diagonal advancement of the pipette. 16 different angles are selectable via DIP switches. Speed and resolution of movement are easily selected with a multiple position thumbwheel, allowing fast/coarse movement and slow/ultra-fine movement in 10 increments. Two commonly used robotic movements have been incorporated for user convenience. A single button press can initiate a move to a Home position for pipette exchange or to a user defined Work position for quick location of the pipette near the recording location. A display on the ROE gives position location. As all controls are located on the ROE, the controller can be moved to a less accessible area of your setup and does not need to occupy prime space in an equipment rack.

Travel 25 mm (1") on all three axes
Resolution 6 microstep sizes selectable (µm/µstep): 0.0625, 0.125, 0.25, 0.5, 1.0 and 2.0
Finer movement settings use the 62.5 nm microstep size, but fewer microsteps are commanded per encoder knob turn
Maximum Speed 2.0 mm/sec
Drift Drive mechanism: < 0.5 µm in 20 hours
Drive Mechanism Integral miniature stepper motor anti-backlash gear head
Dimensions Mechanical: 4 x 5.5 x 6" (10 x 15 x 15.5 cm)
Controller: 16 x 11 x 3.75" (40.6 x 28 x 9.6 cm)
Weight Manipulator: 1.3 kg (2.95 lbs.)
Controller: 4.5 kg (10.7 lbs.)
Power 115/230 V, 50/60 Hz


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