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Modally Tuned ICP® Impact Hammers

Resonance testing and modal analysis are excellent root-cause failure analysis techniques. Impacting a structure excites it with a broadband force. This excitation causes the structure or machine to vibrate at its natural or resonant frequencies. Through the use of a two-channel data collector that measures the ratio of the vibratory response (typically measured with an accelerometer) to the input force (generated and measured with an impact hammer), a frequency response function (FRF) results, which identifies problem resonances. IMI's Modally Tuned® ICP® Impact Hammers, ideally suited for this type of testing, are equipped with a series of removable tips for modifying the amplitude of the applied force and the frequency range of excitation.
Model 086C40
For general purpose testing of medium sized structures such as turbine blades, fan elements and equipment components
10 mV/lb sensitivity
500 lb range
8000 Hz (480,000 cpm) frequency limit
0.3 lb mass
8 in. length
BNC jack connector
Operates from 18 to 28 VDC, 2 to 20 mA excitation
Includes 4 different tips and an extender mass
Includes NIST traceable calibration
Model 086C41
For testing large, heavy structures such as screw presses, foundations, crushers, and grinders
1 mV/lb sensitivity
5000 lb range
1000 Hz (60,000 cpm) frequency limit
3 lb mass
13 in. length
BNC jack connector
Operates from 18 to 28 VDC, 2 to 20 mA excitation
Includes 4 different tips
Includes NIST traceable calibration
Model 086C42
For testing large, heavy structures such as screw presses, foundations, crushers, and grinders
1 mV/lb sensitivity
5000 lb range
500 Hz (30,000 cpm) frequency limit
12 lb mass
35 in. length
BNC jack connector
Operates from 18 to 28 VDC, 2 to 20 mA excitation
Includes 4 different tips
Includes NIST traceable calibration


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 Model  Description Register to View Pricing or Place an Order Quantity

  086C40 General purpose Modal Analysis impact hammer. 8 kHz frequency range 500 lb amplitude range 10 mV/lb sensitivity, 0.3 lb hammer mass, 0.6 inch head diameter.
  086C41 Short-sledge Impulse Hammer w/force sensor & tips, 0 to 5k lbf, 1 mV/lbf (0.23 mV/N), 3-lb head
  086C42 Large-sledge Impulse Hammer w/force sensor & tips, 0 to 5k lbf, 1 mV/lbf (0.23 mV/N), 12-lb head