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Wright Hoists
Acco Heavy-Rated Wire Rope Hoist |
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Wright
ACCO® HEAVY-RATED™ wire rope hoists and crane
components are built with modular
construction.
This gives you
ultimate design flexibility to choose
the options and features in the configuration
you
need. HEAVY-RATED™ hoists and components can
be fitted to many varied and diverse
applications.
ACCO® HEAVY-RATED™
hoists are available in
capacities up to 70 ton s
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HOIST
MOTOR
The hoist motor is a squirrel cage design
incorporating a D.C. rectified
electromagnetic brake and plug-type
connection. It is designed for continuous
service with high duty factors and cycles.
The standard motor
has two speeds with a 6:1
speed ratio. The standard voltage
is 460-3-60. An optional closed-loop
inverter control is available. Class H
insulation is standard. Brakes are
electromagnetic discs with flat-faced
linings. The
friction linings are long
lasting and the brake is easy to maintain.
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DRUM & CABLE GUIDE
The drum is
constructed from a seamless
steel tube with machined grooves. The
drum has self-lubricating, commercial
bearings. The drive from the gearbox to
the drum is via a direct splined shaft. The
rope guide is manufactured from nodular
cast iron with self-lubricating graphite.
Rope guide is formed by two pieces, which
can easily be assembled without special
tools. |
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PUSH-BUTTON PENDANTS
Pendants
are manufactured from high
impact polypropylene and provide double
insulation. Push buttons are color coded
with internationally recognized symbols to
indicate function. Lightweight and
ergonomically styled housing reduces
operator fatigue. A plug-type NEMA 4/12
pendant with an E-stop button is supplied
as standard with all hoists. |
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OVERLOAD LIMIT DEVICE
All hoists
have an electromechanical
load cell as standard. The
overload device must be
set in the field with a
certified load. |
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CONTROL ENCLOSURE
A metal NEMA
4/12 enclosure is located
on the hoist frame allowing easy access
to the electrical control components and
is supplied with plug-type
interconnections. Motor circuit breakers
are standard for hoist and trolley motors. |
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GEARED LIMIT SWITCH
A three-element
geared limit switch is
standard on all hoists. The switch
limits hook movement in the up and
down motions (shown).
GRAVITY LIMIT SWITCH
All hoists
are supplied with a gravity
type upper hook
travel limit switc (not
shown). Single line hoists will
not be supplied with a gravity limit
switch as standard. |
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HOIST GEARBOX
The gearbox
is rugged and compact.
Gears have precision cut helical teeth.
The drive from the motor to the gearbox
is direct with no coupling devices. All of
the gears are lubricated by an oil bath in
the interior of a closed casing. |
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TROLLEY MOTOR & REDUCER
The trolley
motor is a squirrel cage
design incorporating a D.C. rectified
electromagnetic brake and plug-type
connection. The standard trolley speed is
80/20 FPM two speed. Optional speeds
are available, either with 4:1 two speed or
inverter control. The standard voltage is
460-3-60. Low torque, high inertia
drives provide gradual acceleration and
smooth deceleration without
excessive load swing. The drive to
the wheel is via a direct splined
shaft. |
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LOAD BLOCK & HOOK
The load
block houses steel sheaves
with a rotating hook and latch. |
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TROLLEY WHEELS
Trolley wheels are nodular cast
iron with graphite structure.
Monorail hoist trolley wheels have
a hardness of 210 to 280 Brinell
and top running trolley hoist
wheels range from 230 to 300
Brinell. |
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Other Standard
features include:
Trolley travel
limit switch.
Lifetime lubricating bearings.
Monorail trolleys
are adjustable or a 4”
to 20” flange width.
Please contact Met-Con today for a quotation on your
overhead handling and crane service requirements.
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