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General Specifications
|
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Overall Dimensions
(without elevating/retraction base) |
Height 1587mm (62")
Width 1235mm (49")
Length 1560mm (61") |
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Size\Range
|
139mm to 425mm OD
(5 1/2" to 16" OD) |
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Thickness range
(for tube testing) |
Diameter to
Thickness ratio > 6:1 |
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Product Type
|
All types
(Seamless, welded, hot and cold finished) |
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Bearing Type
|
Hydrostatic
|
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Typical head speed
range |
Minimum diameter
139mm (5 1/2”)- 550 RPM
Maximum diameter 425mm (16”)-350 RPM |
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Untested End Length
|
Plain end tubes
-100mm (4”)
Uncut ends - 150mm (6”) |
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No. of transducers
|
Up to 32
|
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Probe arm lift
mechanism |
Sleeve air operated
Probe block clearance at tube ends - Approx 25mm (1”) |
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Signal transmission
|
Via slip rings
|
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Test Principle
|
Immersion test
using contact shoe principle.
Ultrasonic Shearwave angle = 40 Degrees |
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Probe arm following
capability |
Typically +/- 10mm
(3/8”)
Tube off-centre condition |
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Ultrasonic test
capability |
Longitudinal,
Transverse, Oblique,
Lamination and Thickness testing |
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Drive Motor
|
18 KW 3 Phase motor
(with an eddy current speed variator) |
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Water Consumption
|
250 litres/min at 6
bar |
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Testing Speed
Longitudinal/Transverse/Thickness |
Up to 0.5 metre/sec
|
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This rotary probe utilises the contact shoe principle which provides
an advantage over the annular chambers in that much larger tube off-centre
conditions can be tolerated (typically 6mm) and with a special, automatic,
probe shoe lift mechanism, most tube end conditions can be accommodated.
This type of rotary probe can be used in on-line situations testing
tubes/bars with un-cut ends straight from the production mill. |
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Rotating the ultrasonic transducers around a pipe/bar using a
rotary probe offers distinct advantages over the more conventional methods
of rotating or spiralling the product under test; notably High throughput test speed,
on line location, multi-orientational testing (i.e. longitudinal,
transverse, oblique defects or imperfections), simpler tube handling system
and faster size change operations. All
unicorn rotary probes utilize hydrostatic bearings which offer high load
carrying characteristics and virtually no bearing wear. Rotary probes, of
this type, have been utililized reliably over many years in an industrial environment.
The rotary probes mechanics can be supplied either separately or as part of
a system package which includes the
processing electronics and, if required, the conveyor / tube handling
mechanics
Request budgetary price for rotary probe |
