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
-240 480
HE3005 7 8 10 Effective mass (kg) 
2000 2000 2000 Upper Limit Frequency (Hz)
HE4005 12 13 21
2000 2000 2000
HE5005 20 23 32 32 33
2000 2000 2000 2000 2000
HE6005 29 37 38 40 40 53
1200 1300 1300 2000 2000 2000
HE7005 43 60 80 80
1000 2000 2000 2000
HE8005 60 70 80 85 125 135
1000 1200 1300 1300 1800 1800
HE9005 80 95 95 100 120 120
700 800 1000 1000 1000 1000
HE10005 73 100 110 185 200 210
400 600 800 1000 1000 1200
HE11005 230 245 160
500 700 700
HE12005 Effective mass (kg)  250 265 280
Upper Limit Frequency (Hz) 400 500 500
HE15005 350 400 420
400 400 400
HE20005 900 1000
300 300

 

Round Head Expander Specification
Model/Table diameter -150 -200 -230 -320 -370 -448 -550 -590
-240 480
HE300R 7 8 Effective mass (kg) 
2000 2000 Upper Limit Frequency (Hz)
HE400R 10 12 14 16
2000 2000 2000 2000
HE500R 20 21 23 30 32
2000 2000 2000 2000 2000
HE600R 20 30 33 38 38
1000 1800 1800 1800 2000
HE700R 33 58 69 70
800 1500 2000 2000
HE800R 60 70 72
800 1200 1500
HE900R 85 100
1200 1200
HE1000R 140 150 160
1000 1100 1100
HE1100R 200 210 230
800 900 1000
HE1200R 250 260 270
500 600 600
HE1500R 330 350 400
400 400 400

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