Steer Loader and Multiterrain Loader
Skid-steer loaders began
catching on in the construction field in the 1980s because they offered contractors
a way to automate functions that had previously been performed by manual labor.
Those were small, inexpensive machines that improved labor productivity and reduced
work-related injuries. Their small size and maneuverability allows them to operate
in tight spaces. Their light weight allows them to be towed behind a full-size
pickup truck, and the wide array of work-tools makes them very flexible. They
were utility machines, used for odd jobs ranging from work site clean up to small
scale digging, lifting, and loading. In most cases, they logged far fewer hours
of usage each year than backhoe loaders and wheel loaders, but they were cheap,
and so easy to operate that anyone on a job site could deploy them with very little
Since then, the category has become
wildly popular in all avenues of construction. They are the best-selling type
of construction equipment in North America, with annual sales exceeding 50,000
units. They still tend to be low-hour machines, but, thanks to a virtually unlimited
variety of attachments, skid-steer loaders can handle a huge array of small-scale
jobs, from general earthmoving and material handling to post hole digging and
landscaping to pavement milling and demolition.
As the machine has grown in popularity, it has become one of the hottest rental
items in North America. Equipment rental houses consume roughly one-third of the
new units sold each year, and most stock a wide array of attachments, too. The
ready availability of rental attachments - especially high-ticket, specialty items
like planers, vibratory rollers, tillers, and snow blowers and pushers - has turned
the machines potential for versatility into a cost-effective reality.
As the skid-steer has become more popular in construction, the average size of
the machine has grown, too. In the mid-1980s, the most popular operating load
class was 900 to 1,350 pounds. By the mid-1990s, the 1,350 to 1,750 pound class
was the most popular. Today, the over-1,750-pound classifications are the fastest
Larger machines have dominated new
product introductions, too, though our survey of recent new product announcements
has turned up a spate of compact and sub-compact introductions, too. The smallest
of these are ride-behind models aimed mainly at the consumer rental trade, but
they are also used in landscaping and other types of light construction essentially
to automate jobs that would otherwise be done by laborers with shovels.
Road contractors and government highway departments should find the new super-duty
class of skid-steer loaders especially interesting. These units have retained
the skid-steer's traditional simplicity of operation and compact packaging, while
also boasting power and weight specifications that let them perform many of the
tasks done by backhoe loaders and compact wheel loaders. Nearly all boast high-pressure,
high-flow hydraulic systems to run the most sophisticated hydraulic attachments.
They also feature substantial break-out force ratings for serious loading and
substantial lifting capacities for material handling.
The skid-steer loader represents an interesting alternative for fleets that have
low- hour backhoe loaders in inventory. Led by Bobcat, Gehl, Mustang, and other
companies that make skid-steers but not backhoe loaders, skid-steer marketers
have been pushing the proposition that it is more cost effective to replace a
backhoe loader with a skid-steer and a mini-excavator. The rationale: for about
the same amount of money, you can get more hours of utilization because you have
two machines that can be working simultaneously at different jobs.
You may also like this : Fractal Robots, Smart Bombs, Military Radars, Stealth Fighter, Handfree Driving, Solar Power Satellites (SPS), Nano Technology, Iontophoresis, Aerodynamics, Micro-Electromechanical Systems, Turbofan Engine, Solar Sails, Ultrasonic Metal Welding, The Hy-Wire Car, Thermal Barrier Coatings, Ultrasonic Techniques for hidden corrosion detection, Solar-powered vehicles , Two Stroke Engine Using Reed Valves, Vacuum Braking System, Variable Valve Timing In I.C. Engines, F1 Track Design and Safety, Green Engine, Head And Neck Support (HANS), Hydro Drive,Mechanical Seminar Reports, PPT and PDF.