Modal 250A Exciter System

Modal 250a ExciterThe Modal 250A exciter system delivers 225 LB of force with a 2″ peak-to-peak stroke and includes all of the unique features that make MB Dynamics’ exciters the best around the world. Available with optional cooling units and force sensors, the Modal 250A can be customized to suit a number of different applications.

Modal 250A Technical Specs

  • Force Output (w/ Forced Air Cooling): 1,000N pk sine excitation (225 lbf); 650N RMS random (145 lbf)
  • Force Output (w/ Ambient air Cooling): 550N pk sine excitation (125 lbf); 325N RMS random (75 lbf)
  • Stroke: 50mm peak-to-peak (2 in.)
  • Velocity: 1.4m/s peak (55 inches/second)
  • Acceleration: 80 g pk continuous sine
  • Frequency Range: DC – 4000Hz
  • Moving Element Weight: Less than 1.4kg (3.0 lbs.)
  • Moving Element Axial Resonance: Approximately 2,000 Hz
  • Driven-Axis Stiffness: 25 pounds/inch (4.4 N/mm)
  • Exciter Weight (incl. Trunnion base): 115kg (250 pounds)
  • Stinger: ¼” diameter rod x 400mm long with 10-32 & ¼-28 threads on ends
  • Stinger Attachment: Chuck attached to shaker armature
  • Shaker Attachments: Floor mount with trunnion base; suspension mount with multiple turnbuckles
  • Dimensions: 457mm X 355mm Footprint X 436mm High (18” X 14” X 17 3/16”)
  • Drive Cable Length: 10m (32 ft.); up to 50m (160 ft.) optional
  • Accessory Kit (optional): Turnbuckles, wrenches, ¼” stinger rods x 400mm long (10-32 & ¼-28 load cell threads); bolt-on-masses for inertia with nuts, bolts
  • Cooling (Optional): Portable unit; optional Quiet Enclosure < 60dBA
  • Force Sensor (Optional): 2,225N (500 lbs.) tension & compress; 10 mV/lb (2248 mV/kN)

Download Modal 250A Data Sheet PDF

For more information or quotes on the MB Dynamics Modal 250A exciter, please fill out the “Request Information” form on this page, visit our contact page, or call us at 888-570-7542.