QUALITY AND PERFORMANCE
ARO 7700 & 7900 SERIES HOISTS
ARO hoists can be equipped with a variety of
optional features that can be matched to the specifications of almost any job.
ARO hoist's long operating life, performance are supported by a hoist of
ROTARY-VANE AIR MOTORS
- These powerful, self-cooling rotary motors
keep ARO hoists at peak performance in high temperature situations. And,
because they are air-powered, they further reduce the chance of causing
sparks in a volatile environment.
COMPLETE OPERATOR CONTROL
- Pressure pendant or pull chain puts complete
control of the hoist in the operator's hands. Hoists responds immediately to
operator's "inching" commands.
EXTERNAL BRAKE ADJUSTMENT
- Easily customizes the "sensitivity"
of the hoist to the load range for any application. This results in
ease-of-operation with better spotting, feathering and overall control.
FAST, EFFICIENT LOAD HANDLING
- Rotary-vane air motors and efficient gearing
combine to deliver one of the fastest lift speeds available. Gear ratios
have been calculated to yield the lowest possible air consumption per foot
- Numerous options allow ARO hoists to be
matched to specific application requirements - link or roller
load chains, hook types, manual and power trolleys, pull chain or pendant
control, standard and spark resistant, and 300 lbs - 2 ton capacities.
CLEAN AND QUIET
- For applications and environments that require
clean air, exhaust can be piped away. Two-stage filtration system removes
foreign matter from air supplies so that motors can operate at peak
performance with longer operating lives.
- Lightweight and convenient, ARO hoists are
easier to install than any other model. Even in small, confined areas, they
can be installed and removed with minimal effort.
- Use the "Performance Data"
Chart to identify desired hoist characteristics starting with "Load
- Starting with identification of the
base model, use the "Order Guide" to select the
appropriate hoist product. Hoist options - type of chain,
suspension, control type - should correspond with selected hoist.
- "Lift" options indicate the
maximum amount of lift or lowering (in feet) the hoist needs to
perform. (Note: a hoist may need to "lower" an item
farther than it needs to "lift" it).
- Length of control, either pendant or
pull chain, should correspond with the approximate distance between
the operator and hoist (usually 4 feet less than the length of
Material handling needs differ from
application to application. ARO offers numerous hoist types with a range
of options that can be matched to meet your specific application
requirements. When the time comes to select the appropriate hoist for
your needs, you should consider the following criteria.
A. MAXIMUM LOAD
- The first consideration when choosing
a hoist is the maximum load the hoist will need the accommodate. ARO
hoist have weight ratings that range from 300 lbs to 2 tons. The
second consideration is hoist speed. The speed of a hoist is
dependent on the corresponding cycle time of the task to be
performed - lift, transport, lower, return, start again.
B. INSTALLATION REQUIREMENTS
- ARO hoists, whether hook or trolley
configured, can be mounted on several beam configurations. Compact
for low headroom requirements, ARO hoists can be mounted in areas
where others can't.
C. AIR SUPPLY
- To ensure maximum operating
performance, ARO rotary-vane air hoists require air supplies that
continually provide clean, lubricated air at sufficient pressure and
volume. The ARO AJ300 requires 90 psig (6.2 bar) at 12 cfm (0.34
m^3/min), while all other ARO hoists require 90 psig (6.2 bar) at
65-70 cfm (1.84-1.98 m^3/min).
D. CONTROL METHOD
- ARO rotary-vane air hoists control
lift and descent by admitting proportional amounts of air to be
motor by way of a spool valve. ARO offers two control systems:
- 1) Pendant Control systems use a
3-hose pilot pressure/bleed system to drive a control rod that opens
and closes the spool valve.
- 2) Pull Chain systems operate in the
same manner by using operator-controlled pull chains attached to a
control arm to open and close the spool valve.
Warning: This equipment is not to be used
for lifting, supporting, or transporting people, or lifting or supporting loads