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PRECISE TORQUE CONTROL |
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Air screwdrivers with automatic shutoff
clutches are sensitive to large swings in air pressure. Electric drivers use
adjustable micro switches for fast and precise response. |
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LOW SOUND LEVELS |
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The average auto shutoff electric
screwdriver has a dbA range of 65-69 decibels. |
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LOW VIBRATION |
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Electric drivers provide the operator
ergonomic relief from (RSS) Repetitive Stress Syndrome. There
is also less chance of damaging delicate electronic components. |
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NO AIR EXHAUST CONTAMINATION |
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There is no lubricated air being
exhausted into the ambient work area. Non-lubricated models
still exhaust certain amounts of moisture and oil carry over from
the air compressors. There is less chance of contaminating the
finished product. However, minute amounts of carbon dust are
emitted as the motor brushes wear. |
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EASY SET UP / VERSATILITY |
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There is no need to install costly air
compressors, piping, FRLs, hoses and air connections. Most
electric screwdrivers and/or controllers can be connected directly
to any grounded 110V outlet. Tools can be quickly changed to
different positions on the assembly line without having to make
major changes. |
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ENERGY EFFICIENT |
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The average electric screwdriver draws
only a mere 0.75 amps. Small .20 HP screwdrivers require 8-12
cfm @ 90 PSI. Even calculating only a 30% dwell time (4.0 cfm)
you would need to figure each air screwdriver requires 1 HP of
compressor power. |
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EASY TORQUE ADJUSTMENT |
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External torque adjustment rings make
calibrating electric screwdrivers easy. No special tools are
required. Operators can use the reference scales to set the
torque. Torque adjustment covers are available to avoid
accidentally changing the setting. |
|
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Pneumatic Auto
Shutoff Screwdrivers |
|
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 |
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US-LT40B SERIES |
USLT41PB SERIES |
US-LT30BL SERIES |
Push-to-Start
Light Touch Series |
Trigger Start
Light Touch Series |
Lever Start
Light Touch Series |
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TORQUE PRECISION |
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Both electric and pneumatic screwdrivers
have mechanical clutches. The shutoff mechanisms of both
(micro switches or air valves) are designed to shut off the power
source whether compressed air or electricity. Accuracy is more
a function of choosing the correct speed and clutch spring. |
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POWER TO WEIGHT RATIO |
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Typically, hand held air screwdrivers
are lighter and smaller than electric screwdrivers. They have
a better power to weight ratio. This is an advantage in tight
access areas or where balancers cannot be used. |
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HIGHER PRODUCTION RATES |
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Air screwdrivers are able to deliver
higher production rates since they are not limited by the dwell time
required to drive a fastener, or cycle time between fasteners.
Generally, electric drivers require a minimum of 3-4 seconds between
driven fasteners, and should not be on more than 0.5 seconds.
This is eliminates heat build up and prevents electronic component
failure. |
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BROADER TORQUE RANGES AND VERSATILITY |
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Air screwdrivers offer a greater range
of torque capacities and speeds to fit various applications.
Air screwdrivers are typically available as straight, pistol or
angle head models. |
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EASIER MAINTENANCE |
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Fewer moving parts. Therefore,
fewer parts to keep on inventory. There is no wiring or
de-soldering to consider. No delicate electronic components to
handle or adjust. Air screwdrivers are more "forgiving" than
electric drivers. If you assembly the motor incorrectly it
simply stalls. Typically, the maintenance department is able
to provide a quicker turn around time to return the units back to
production. |
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EXHAUST AND SOUND EMISSIONS |
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Exhaust hoses can be used to channel
away any exhaust discharge away from the product and operator.
It also lessens the sound emission.
--Joe Gonzalez, AIMCO Western
Divisional Sales Manager |
