31-Series Hoist ComponentsMunck hoists provide economical, superior performance with an emphasis on quality and compact design.
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This component is made of nodular cast iron
and conforms to FEM 9.661/86. The wire rope
passes through a tapered socket and wraps around
a wedge. The tension on the wire rope caused
by lifting of a load forces the wire rope and
wedge into the socket creating a positive mechanical
termination, eliminating the need for wire rope
clips. Once set, the rope is secure in the loaded
and unloaded condition.
All Munck 31-Series hoists are fitted with either
a mechanical or an electronic overload protection
device. Munck's "safe-load" unit is
available as an option to monitor the load spectrum.
As an option, both hoist and trolley drive can
be operated by means of a frequency converter.
Acceleration and deceleration can each be adjusted
so that swinging of the load, a known source
of accidents, is largely eliminated. The high
quality 4-pole motors are also suitable for
overspeed drive with reduced load.
The 3 stage reduction unit is comprised of a
self contained cast iron housing with heat treated,
alloy steel, helical gears in oil bath. All
gear shafts are supported on antifriction bearings.
The gearbox is rated to minimum design group
of 2m/M5.
The DC rectified disc brake is an integral part
of the hoist motor and is activated when the
power to the hoist is terminated. The asbestos
free brake linings are designed for 1 million
brake operations. Under normal duty this brake
is considered maintenance free requiring only
inspection in accordance with local regulations.
The Munck
wire rope hoist is equipped with a heavy duty
two speed polechanging squirrel cage motor that
is fan cooled and designed for a minimum 2m/M5
duty cycle. The motor conforms to IP54 with
class "F" insulation and has provision
for thermal overloads. 
The hook block sheaves are made of heavy cast
iron with machined grooves rotating on sealed
and lubricated for life ball bearings and are
enclosed in protective guards. The hook complete
with latch is forged from high strength steel
and rotates on a thrust bearing. The hook complies
with DIN 15 400.
The limit switches are safety features that
control over hoisting and over lowering by disconnecting
power to the hoist motor. The switches are adjustable
for your specific requirement. The device consists
of two high-precision, slow-brake micro switches
acting on the auxiliary circuit of the hoist
motor control device.
The drum is made from a steel tube
with precision-machined grooves that properly
support the hoisting wire rope to ensure maximum
wire rope life. Each end is supported by bearings
housed in rugged steel end plates. The drum
is designed to conform to ISO 4308/1 and FEM
9.661/86. 
The wire rope guide is a mechanical device which
provides constant pressure on the wire rope
to ensure a positive engagement with the drum
groove. This prevents overlapping of the wire
rope and promotes longer wire rope lifetime.
Munck's unique two-part system is designed for
easy maintenance and durability.
Electrical controls (contactors, relays, etc.)
are operated with a push button pendant station
or a radio remote control unit. Inside the cabinet,
you will find that every circuit has automatic
fuses and all cables and components are clearly
marked for easy identification. Each cable is
connected directly to the external components.
The wheels are permanently lubricated and driven
by a pole change motor. The motor is specially
designed to give soft start and the ratio between
creep speed and maximum speed is 1:4. Minimum
two of the wheels are always motorized.
31-Series Hoist ComponentsMunck hoists provide economical, superior performance with an emphasis on quality and compact design.
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