 The
Design Results From Years of Material Handling
Engineering and Manufacturing Knowledge and
Experience-Utilizing Space-Age Techniques and
Materials While Retaining the Superior Design
Features and Quality of Current Hoists.
Standard Features
OVERLOAD
CUTOFF
Protects load, hoist and operator by interrupting
raising circuit when hoist senses a damaging
overload. When lifting circuit is interrupted, the
lowering circuit remains intact to allow the load to
be lowered and removed. After the overload is
removed the lifting circuit is automatically
restored. Overload Cutoff is accessible for field
adjustments.
BASIC
CONTROLS
Choose single or two speed. Magnetic reversing
contactors, both mechanically and electrically
interlocked. 115V control circuit. Meets NEC
requirements. NEMA Type 3R enclosure. Lightweight,
durable, and easily accessible.
MOTOR
BRAKE
Proven in millions of hours of in-service operation,
the original Wright rectified D-C magnet-actuated
disc brake delivers rapid stops with virtually no
hook drift. Rated a minimum of 150% of full load
motor torque. Exclusive brake-sensing microswitch
prevents motor from operating against engaged brake
and when brake requires adjustment.
MOTOR
The New Century Series utilizes a U.S. manufactured
motor. 30-minute duty, Class F insulation. Standard
single speed motor is provided for 200V, 230V/460V
or 575V 3 phase, 60 hertz power supplies. Motor
thermostats are standard - providing both running
and overcurrent protection.
DRUM
Has machined grooves and large flanges for smooth
winding and extended rope life. At least two full
turns of rope remain on the drum at the lowest hook
position.
LIMIT
SWITCH
A gravity type upper hook travel limit switch comes
equipped with an automatic momentary lowering
circuit.
LUBRICATION
Gears operate in the largest oil reservoir in the
industry and are enclosed in a rugged fluted
aluminum alloy housing. The oil bath and housing
combine to provide rapid heat dissipation, an
important aspect of achieving the high volume hoist
duty of an H4 classification. Oil sight gauge on the
housing cover permits quick visual inspection.
MECHANICAL
LOAD BRAKE
Automatic Weston-Type multiple disc brake, carried
forward from the original Work-Rated design. It can
hold a full capacity load independent of the motor
brake and assures that the load does not accelerate
while being lowered. Adjustment is not required.
GEAR TRAIN
Quiet, helical and spur gearing. All gears are
machine cut, case-hardened alloy steel with
shock-resistant ductile cores. Designed to AGMA
standards.
BEARINGS -
SPIDER RETAINERS
Precision heavy-duty ball bearings support all
shafts. Bearings at outboard end of shafts are held
in place by heavy-duty Spider Retainers. This allows
removal of Gear Housing Cover for inspection (after
draining oil). All internal parts remain in place
and can be operated for inspection.
WIRE ROPE
Pre-formed wire rope, of hoisting service
construction, made of extra improved plow steel (XIP)
with an independent wire rope center. Has swaged
fittings on both ends for ease of replacement if
necessary.
LOAD BLOCK
- HOOK
Drop forged heat-treated steel hook swivels 360° on
a shielded roller thrust bearing and comes equipped
with a spring latch. Work can be performed on the
load block without removing wire rope from drum.
Steel sheaves are standard.
Please contact Met-Con today for a quotation on your
overhead handling and crane service requirements.
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