Environmental conditions that are unfavorable, harmful, or
detrimental to or for the operation of a hoist, such as excessively
high or low ambient temperatures, exposure to weather, corrosive
fumes, dust laden or moisture laden atmospheres, and hazardous
locations.
A solution for precise positioning or repetitive transferring of
loads as heavy as 500 pounds. With up to 8" (up or down) of
float, the operator can position the load easily and precisely by
hand. Perfect for palletizing, fabricating, stacking and pick and
placement of load and unload.
An automatic type of friction brake used for controlling loads in
a lowering direction. This unidirectional device requires torque
from the motor or hand chain wheel to lower a load but does not
impose any additional load on the motor or hand chain wheel when
lifting a load.
A device for reducing impact when a moving crane or trolley
reaches the end of its permitted travel, or when two moving cranes
or trolleys come into contact. This device may be attached to the
bridge, trolley or runway stop.
A series of alternately assembled roller links and pin links in
which the pins articulate inside the bushings and the rollers are
free to turn on the bushings. Pins and bushings are press fit in
their respective link plates.
An assembly of components (magnetic, static, hydraulic, pneumatic,
etc.) which governs the flow of power to or from a motor or other
equipment in response to signals from a master switch, push button
station, remote control, automatic program control, etc.
A machine for lifting and lowering a load, and moving it
horizontally. Cranes, whether fixed or mobile, are driven manually,
by power, or by a combination of both.
End trucks, drive reducers, motors, controls and instructions
provided by a hoist manufacturer that enable a crane builder to
fabricate single and double girder top and under-running cranes.
(The bridge girder(s) connecting steel, electrification,
fabrication, assembly and wiring of the crane are done locally by
the crane builder.)
A crane similar to an overhead crane, except that the bridge for
carrying the trolley or trolleys is rigidly supported on two or more
legs running on fixed rails or other runway.
A crane whose hoist mechanism is drive by pulling an endless chain
or whose travel mechanism is driven in the same manner or by
manually moving the load.
A gantry crane with one end of the bridge rigidly supported on one
or more legs that run on a fixed rail or runway, the other end of
the bridge being supported by an end truck running on an elevated
rail or runway.
That service which involves operation with randomly distributed
loads within the rated load limit, or with uniform loads of less
than 65% of the rated load, for no more than 15% of the time of a
single work shift for manually operated cranes and 25% of the time
of a single work shift for electrically or pneumatically powered
cranes.
A metallic device used with CM Series 632 trolleys to allow
adjustment of the trolley to various beam sizes by selecting a
collar position appropriate for the specific beam.
A point on a travel motion master switch or on a manual controller
that maintains the brake released while the motor is not energized.
This allows for coasting.
Expresses a powered device’s capability, determined by load,
rate and number of motor activations. Through heat generation, these
factors limit the operating capability of the device.
The hoist chain grasped by a person to apply the force required
for the lifting or the lowering of a load; also used to apply the
operating force to move geared trolleys along the beam.
Locations where fire or explosion hazards may exist. Locations are
classified depending on the properties of the flammable vapors,
liquids or gases, or combustible dusts or fibers which may be
present and the likelihood that a flammable or combustible
concentration or quantity is present.
Locations that are hazardous because of the presence of easily
ignitable fibers or flyings, but in which such fibers or flyings are
not likely to be in suspension in the air quantities sufficient to
produce ignitable mixtures.
The distance between the bottom of the beam flange and the lower
hook or the distance between the bearing surfaces of the upper and
lower hooks at high hook position.
A suspended machinery unit that is used for lifting and lowering a
freely suspended (unguided) load; can be powered by hand, air or
electricity; lifting medium either chain, wire rope or roller chain.
A stationary or fixed crane that utilizes a cantilevered bridge
(girder) supported from a stationary vertical support. The jib crane
generally utilizes a lifting device (hoist) that is mounted on the
horizontal boom (jib).
Operate under the crane hook and are offered in a variety of sizes
and configurations. Included are c-hooks, crane forks, coil lifters,
beams and sheet lifters.
Devices which are not reeved onto the hoist rope or chain, such as
hooks on buckets, magnets, grabs, and other supplemental devices
used for ease of handling certain types of loads. The weight of
these devices is to be considered part of the rated load.
Load transmitting component most frequently used in conjunction
with the hoist rope or chain, and other supplemental devices used
for ease of handling certain types of loads.
The assembly of hook or shackle, swivel, bearing, sheaves,
sprockets, pins, and frame suspended by the hoisting rope or load
chain. This shall include any appurtenances reeved in the hoisting
rope or load chain.
The load suspension parts of the hoist are the means of suspension
(hook or lug), the structure or housing which supports the drum or
load sprocket, the rope or load chain, the sheaves or sprockets, and
the load block or hook.
Compatible with electric chain hoists and pneumatic balancers,
this overhead rail is ergonomically designed for ease of movement
with minimum force required to position loads.
Material Handling is the movement, storage, control and protection
of materials, goods and products throughout the process of
manufacturing, distribution, consumption and disposal. The focus is
on the methods, mechanical equipment, systems and related controls
used to achieve these functions. See also, Supply Chain, Supply
Chain Management, Logistics and Third Party Logistics. Note that all
of referenced terms are highly interrelated and their definitions
are frequently intermingled.
National Electric Manufacturers Association Standard No. 250, Type
4. Applies to enclosures intended for indoor or outdoor use
primarily to provide a degree of protection against windblown dust
and rain, splashing water, and hose-directed water; undamaged by the
formation of ice on the enclosure.
A crane with a single or multiple girder (bridge girder) bridge
carrying a movable or fixed hoisting mechanism and traveling on an
overhead fixed runway structure.
A specific load applied to chain or chain assemblies during a
proof test, a non-destructive test carried out to a specific
multiple of the working load limit.
A person who, by possession of a recognized degree or certificate
of professional standing, or who, by extensive knowledge, training,
and experience, has successfully demonstrated the ability to solve
or resolve problems relating to the subject matter and work.
That distributed service which involves operation with randomly
distributed loads within the rated load limit, or uniform loads less
than 65% of rated load for not more than 15% of the time for
manually operated hoists, and 25% of the time for electric or
air-powered hoists.
A device to limit travel of a trolley or crane bridge. This device
normally is attached to a fixed structure and normally does not have
energy absorbing ability.
A flexible series of connected links used in various ways,
especially for the transmission of motive power, for hoisting, and
for securing or fastening.
A device that is actuated by the motion of a part of a
power-driven machine or equipment to alter or disconnect the
electric, hydraulic, or pneumatic circuit associated with the
machine or equipment.
A condition in which the operator of a hoist is not at the
operating control devices (pendant station or hand chain). However,
if the control devices are within an unobstructed distance of 26 ft.
(8.0 m) and within sight of the operator, the hoist should be
considered attended.
The following are trademarks of
Columbus McKinnon Corporation registered in the U.S. Patent and
Trademark Office: CM, AirStar, Apollo, Big Orange, Cady, Clevlok,
Conco, Cyclone, Hammerlok, Herc-Alloy, Herc-Alloy 800, Hoistaloy,
Latchlok, Load Limiter, Lodestar, PiggyBack, Polaris, Powerstar,
RailStar, Rigger, ShopStar, Valustar.
The following are trademarks of
Columbus McKinnon Corporation: LodeRail, Positech, Protector.
