THE RIGHT FORKLIFT FOR THE APPLICATION
The differences in material handling requirements mean each forklift must be matched to the specific application
Engine-powered forklifts are usually the right choice for
applications that require:
o
High load capacities
o
Fast acceleration
o
Fast travel and lift speeds
o
Operation up and down steep ramps and slopes
o
Quick, "on-the-fly" refueling
Electric-powered forklifts are frequently the best choice
for applications that require:
Engine-powered, counterbalanced forklifts are the
most widely used type of industrial truck in the marketplace today. Solid cushion-tired
trucks are ideal for indoor use, while pneumatic-tired trucks can be used for
outdoor or indoor applications. They offer several advantages:
An internal-combustion engine can produce more than
enough power to continually handle heavy loads, accelerate quickly, climb
grades under full load, and maintain high travel and lift speeds.
Optimum Series forklifts can be powered by gasoline,
LP-gas, CNG (compressed natural gas), or diesel fuels. They can also be
refueled, and back in service quickly, to maximize productivity.
Plus, engine-powered forklifts have the power to
handle accessories and attachments to meet specific material handling
requirements.
Recent technological advances are enabling electric-powered
lift trucks to undertake applications that in the past were reserved for
engine-powered models.
Transistorized motor controllers are producing more
efficient power management than ever before. The result?
Longer work cycles between charges, and improved travel and lift/lower speeds.
Onboard diagnostics simplify maintenance work.
Service technicians can forget about time-consuming
guesswork. Today's most advanced diagnostics not only pinpoint trouble, but
display potential problems for preventive maintenance before unscheduled
downtime occurs.
While electric-powered counterbalanced forklifts have
long been the choice for less stringent applications, an increasing number of
fleet managers are now selecting electric-powered trucks for tough,
high-throughput, round-the-clock applications.
Compared with the previous
generation of electrics, today's electric-powered trucks often run faster, and
work harder and longer. Their new capabilities include:
Many of these changes are a reflection of the
advances that have been made in electronics, especially in the area of motor
controllers.
Electric-powered forklifts offer other advantages as
well. For example, although an electric-powered forklift generally will carry a
higher initial price tag than an engine-powered truck of the same load
capacity, electrics are extremely economical to operate. In terms of life cycle
cost, the electric can cost substantially less to run and to maintain.
Electric-powered trucks are also both
clean-running and quiet -- important considerations given today's
increased environmental concerns.
Narrow-aisle trucks permit the designers of
warehouses and distribution centers to tighten the distance between racks. The
result is more pallet storage locations per square foot.
In a conventional rack configuration, sit-down
counterbalanced forklifts handle pallet put-away and retrieval. The longer
wheelbase on this type of truck translates into a wider turning radius, and
that in turn means more maneuvering distance between the racks -- typically
about 12 feet.
With narrow-aisle trucks, that distance can be narrowed
to 96 inches. The number of pallet positions is increased by about 50%. In
addition, most narrow-aisle trucks can stack at five levels (with minimum
down-rating).
Let's look at these differences in terms of the
number of square feet of warehouse that's required to store a given number of
pallets. A good rule-of-thumb says that in a conventional rack configuration,
you'll need 10,000 square feet of floor space to store 1,000 pallets. Switch to
narrow-aisle trucks, squeeze those racks closer together, increase the height
of the racks to five levels, and you'll be able to store the same 1,000 pallets
in just 6,470 square feet. The difference is in the trucks.
There are two main types of narrow-aisle trucks:
reach trucks and order-selector trucks. Reach trucks store pallet loads in the
racks and also retrieve pallets when needed. Order-selector trucks lift the
operator up to the height of the pallet load in order to pick individual items
for an order.
In some applications, a third type of truck -- the
straddle stacker -- handles the pallet put-away and retrieval work.
Powered pallet trucks are a good choice for industrial
applications that call for moving pallet loads over short-to-medium distances, loading
and unloading trailers and freight cars, working in congested or cramped areas,
and economic cost of operation.
For jobs that involve moving loads short distances
(up to 100 feet), a walkie pallet truck is the right
one to select. As the distance increases (up to about 400
feet), a walkie/rider pallet truck will get the job
done.
Walkies are often
used for loading and unloading pallets in confined spaces such as trailers and
freight cars, and in congested areas such as loading docks. Because they
require a very modest investment to acquire, walkies
are also used to provide back-up load-handling capacity during periods of peak
activity.
Walkie/rider
trucks are offered in several configurations depending on where the operator
stands while the truck is underway. The two most common designs are end-control
and center-control.
Both walkie and walkie/rider powered pallet trucks offer a highly
economical alternative to using conventional counterbalanced forklifts for load
handling that does not involve stacking.