LIT-AT100 AIMCO Master Catalog rev 03-01-22 low res - Catalog - Page 59
Uryu Controlled Pneumatic Pulse Tools
Uryu Controlled Pulse Tools Offer Ergonomic Solutions
for Precise Quality Control and High Productivity
MAGNETOSTRICTIVE TRANSDUCER
Uryu’s unique feature, a brushless Magnetostrictive Transducer, provides real time monitoring of torque
delivered to the fastener that is then used by the tool controller in managing the delivery of torque.
The Magnetostrictive Torque Transducer is a
non-contact system consisting of the tool anvil
surrounded by a pair of sensor coils providing
accuracy and durability in a tightening process.
This system is accurate and robust in detecting
dynamic torque application while fastening.
OIL-PULSE UNIT
SENSOR
SHAFT
When torque is applied to the tool anvil, tensile
stress is detected by the coils as changes
in the magnetic field. These magnetic field
changes are analyzed and converted to torque
signals that a controller uses to shut off the tool.
MAGNETOSTRICTIVE
TRANSDUCER
SENSING &
EXCITING COIL
AUTO RELIEF TECHNOLOGY
URYU’s patented Auto Relief
Technology ensures smooth
delivery of torque during pulse
tool operation.
A relief valve within the
pulse unit manages the
pressurization of the pulse unit
fluid in a proportional manner.
This modulation begins the
application of torque energy
to the fastener in a more
controlled manner than has
ever before been possible. A
benefit of this technology is
the elimination of an initial
torque spike generated by the
inertial mass of the pulse unit
which, prior to bolt seating, is
influenced by the inertia of the
spinning mass.
③
During Pulsing
High Pressure
Closed
Rotational Direction
Spring
②
④
Just before Pulsing
Just after Pulsing
Enlarged Auto Relief
Driving Blade
Liner Casing
Oil
①
Start
Anvil
Open
Liner
⑤
After Pulsing
(180°rotation from Pulsing)
Driving Blade
Spring
Uryu’s Auto Relief system dynamically responds to the joint condition resulting in more pulses, shorter in duration
to meet the target torque. This leads to more accurate fastening over a wide variety of application demands.
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