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MGX SERIES • OPERATION AND PARTS MANUAL — REV. #0 (03/26/12) — PAGE 13
GENERAL INFORMATION
When determining which head to choose it is important
to access the application. Mainly what are the dimensions
of the application. Select the vibrator head based on its
radiating radius characteristics. Reference Table 4.
Select the vibrating head that covers the largest possible
area without excessive overkill. This will allow for more
efficient productivity. General rule of thumb is DO NOT
select a vibrator head which has a vibration radius of more
than twice the width of the form.
Example:
If the form width is 9 inches (229 mm) the selected vibrator
head radius should not exceed an 18 inch (457 mm) radius.
In this example the MGX3810 and MGX3825 head/shaft
would be the recommended choice. Refer to Table 4 and
Figure 3.
NOTICE
Vibrator head spacing distance (D) is calculated by
multiplying the vibrating head radius (R) (area of
influence) by 1.5.
NOTICE
Vibration techniques, vibrator head placement and
spacing as referenced in the "General Information" and
"Operation" sections of this manual is only to be used
as a guideline. Multiquip assumes no responsibility for
vibrator operating techniques referenced in this manual.
The consolidation of concrete has many mitigating
factors that must be considered such as slump, mix,
depth of vibrator, vibrator spacing, vibration time,
vibration frequency, temperature. All of these factors
must be considered when the consolidation (vibration)
of concrete is required.
AREA OF INFLUENCE
(VIBRATING RADIUS)
VIBRATOR HEAD
INSERTION SPACING
VIBRATOR HEAD
INSERTION POINT
CONCRETE
TOO SMALLAREA
OF INFLUENCE
(VIBRATING RADIUS)
NO VIBRATION
NO VIBRATION
CORRECT
FORM
WIDTH
Figure 3. Head Selection