Stanley Hydraulic Tools
ADVANTAGES OF HYDRAULIC
Reduce Initial Costs
- Air Compressors required to power pneumatic tools are
expensive! The typical 185 CFM air compressor lists for
- Compare this to adding a dual hydraulic tool circuit to a
vehicle for $6,000* ... the savings are tremendous when
buying fleets of trucks.
- Even when purchasing single circuit mobile hydraulic
power units vs 100 CFM air compressors, the savings are
significant ... $4,000* for a hydraulic power unit vs
$11,000* for a 1 00 CFM air compressor.
*Approximate - Based on January 1992 list
Reduce Operating Costs
- Less system maintenance. A hydraulic system has few
moving parts and is self- lubricated; therefore requires
far less maintenance than an air system. A new hydraulic
pump costs less than one-third of the cost of an air
compressor overhaul. The economic life of an air
compressor is usually rated at eight years. A hydraulic
system can be transferred easily from an oil vehicle to a
new one, and will outlast two to three trucks.
- Less tool maintenance. Humidity in compressed air, beat
of compression, and contamination with oil blow-by create
sludge and acids...tools operating on this mixture have
internal problems. Hydraulic tools are full of oil at all
times, and are thus preserved and lubricated.
- More efficient. Most hydraulic systems operate at two or
three times the efficiency of air systems because the oil
is not compressible. A smaller, lighter, and less costly
prime mover will accomplish the same amount of work, and
use substantially less fuel while doing it.
- No pilferage. While there is a ready market for gasoline
or air powered tools, the general public does not have a
hydraulic source of power ... hydraulic tools are seldom
Advantages for the Operator
- Safer. Hydraulic oil is a poor conductor of electricity.
A hydraulic tool with nonconductive hoses is much safer
dielectrically than an air tool which may have moisture
condensed in the hose.
- Air usually compressed 8:1 for tool use. Hydraulic oil
compresses only about 1,@2% per 1000 psi. A damaged
hydraulic hose dissipates pressure almost instantly ...
it does not whip around like an air hose which frequently
uses chain links on air hose couplings and automatic
shutoff valves in air tool circuits.
- Lower noise levels. Noise of air tools comes from both
the compressor and the tool exhaust. Hydraulic tools have
neither of these sources, and operate at noticeably lower
- Higher powerlweight ratio. Air tools operating at 90-100
psi must be larger and heavier to achieve force levels of
hydraulic tools which operate at much higher pressure
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