ARO INDUSTRIAL HOISTS

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 standard features.

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 of lift.

JOB-MATCHED PERFORMANCE

• 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.

EASY INSTALLATION

• 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.

ORDERING HOISTS

• Use the "Performance Data" Chart to identify desired hoist characteristics starting with "Load Capacity".
• 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 "lift").

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.