A head expander, in the context of vibration testing, is an accessory used to increase the mounting surface area of an electrodynamic shaker table. This allows for the testing of larger or heavier specimens that cannot be directly mounted on the standard shaker table. Head expanders are typically made of lightweight magnesium or aluminum and are designed to provide a stable and rigid platform for mounting test objects.

Here's a more detailed explanation:

Purpose:

The primary function of a head expander is to expand the mounting surface of the shaker table, enabling the testing of larger specimens.
Material:

Head expanders are commonly constructed from lightweight magnesium or aluminum, chosen for their high strength-to-weight ratio. This helps minimize the added weight to the shaker system.
Design:

Head expanders are designed to be rigid and stable, ensuring accurate and reliable vibration test results. They often include features like gussets and welds for added strength.
Customization:

Head expanders can be custom-made to meet specific customer requirements, including size, shape, and mounting hole patterns.
Applications:

Head expanders are used in various industries, including automotive, aerospace, and electronics, where large components or assemblies need to be tested for vibration and shock.
Integration:

Head expanders are designed to integrate seamlessly with existing shaker systems.
Benefits:
Increased testing capacity: Allows for the testing of larger and heavier specimens.

Improved test accuracy: Provides a stable and rigid platform for mounting test objects.

Reduced test time: By allowing for the testing of multiple items simultaneously (depending on the fixture), head expanders can reduce overall test cycle time.

Cost-effective: Provides a cost-effective solution for expanding testing capabilities.

Model	Vertical Head Expander(Square)Specification
Model	Vertical Head Expander(Square)Specification
CZ0303	7	8	10			Effective mass(kg)
CZ0303	2000	2000	2000			Up limit frequency(Hz)
CZ0404	12	13	21
CZ0404	2000	2000	2000
CZ0505		23	29	32	35
CZ0505		2000	2000	2000	2000
CZ0606		35	38	40	40	48
CZ0606		1000	1500	2000	2000	2000
CZ0707		40	43	60	70	80
CZ0707		1000	1000	2000	2000	2000
CZ0808		60	60	70	80	85	100	100
CZ0808		800	1000	1200	1300	1200	1500	1500
CZ0909			80	95	95	105	120	120
CZ0909			500	1000	1000	1000	1000	1000
CZ1010			73	100	110	175	190	210
CZ1010			400	600	1000	1000

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Durable Head Expander For Vibration Test System 2 kHz Frequency