Head Expander: Round & Square

Almost for all the vibration test applications, a Head Expander is required because the test specimen or the fixture is larger than the armature surface. In these cases, a Head Expander is used to provide a broader base for mounting the test specimen and fixtures.

A head expander is made of lightweight magnesium or less expensive aluminium. Many types of standardised Head Expanders are available or special customisation is also available to meet your requirements.

Head Expanders are designed with load support which enables larger test specimens to be mounted and tested safely on the shaker and reduces the risk of damage to the shaker suspension system. Head Expander design and customisation are available for your existing vibration test system as well. All of our Head Expanders have a strict requirement related to frequency, table weight, acceleration, amplitude uniformity and lateral movement and are designed to meet your standards.

Features

  • All Head Expanders have passed finite element analysis.
  • Designed to optimise the performance of your vibration test system.
  • High-quality manufacturing process is followed to ensure consistent performance with excellent technical indicators.
  • Options include “square” or “round” shape and “magnesium” or “aluminium” material.
  • Customised shapes and sizes are also available.

Technical Specifications

 

Square Head Expander Specification
Model/Table diameter-150-200-230-320-370-448-550-590
-240480
HE30057810Effective mass (kg) 
200020002000Upper Limit Frequency (Hz)
HE4005121321
200020002000
HE50052023323233
20002000200020002000
HE6005293738404053
120013001300200020002000
HE700543608080
1000200020002000
HE800560708085125135
100012001300130018001800
HE9005809595100120120
7008001000100010001000
HE1000573100110185200210
400600800100010001200
HE11005230245160
500700700
HE12005Effective mass (kg) 250265280
Upper Limit Frequency (Hz)400500500
HE15005350400420
400400400
HE200059001000
300300

 

Round Head Expander Specification
Model/Table diameter-150-200-230-320-370-448-550-590
-240480
HE300R78Effective mass (kg) 
20002000Upper Limit Frequency (Hz)
HE400R10121416
2000200020002000
HE500R2021233032
20002000200020002000
HE600R2030333838
10001800180018002000
HE700R33586970
800150020002000
HE800R607072
80012001500
HE900R85100
12001200
HE1000R140150160
100011001100
HE1100R200210230
8009001000
HE1200R250260270
500600600
HE1500R330350400
400400400

Let's Talk About Your Needs

Let's Talk