A crane is a tower or derrick that is equipped with
cables and pulleys that are used to lift and lower
material. They are commonly used in the construction
industry and in the manufacturing of heavy equipment.
Cranes for construction are normally temporary
structures, either fixed to the ground or mounted
on a purpose built vehicle.
The compact hydraulic excavator can be a tracked or
wheeled vehicle with an approximate operating weight
of 13,300 pounds. Normally, it includes a standard
backfill blade and features an independent boom
swing. The compact hydraulic excavator is also
known as a mini excavator.
Digging trenches is one of the oldest types of work
with both construction and excavating. Prior to World
War 2, trenches were dug by hand. As workers dug the
trenches deeper, the sides needed to be shored or
supported, to keep the walls of the trench from caving
in.
Drag line excavator systems are heavy machinery that
is used in civil engineering, surface mining, and
excavation. With civil engineering, the smaller
types are used for road and port construction. The
larger types of drag line excavators are used in
strip mining operations to extract coal. These are
among the largest types of mobile equipment and
weigh upwards of 10,000 tons!
The bulldozer is a very powerful crawler that is
equipped with a blade. The term bulldozer is often
used to mean any type of heavy machinery, although
the term actually refers to a tractor that is fitted
with a dozer blade.
Excavation is most commonly and best known for a
technique within the science of archaeology. The
individual types of excavation are known simply
as digs to those who participate, with this being
an over literal description of the process. An
excavation concerns itself with a specific
archaeological site or connected series of sites,
and may be carried on over a number of years, since
the work is normally seasonal.
There are many different opinions as to what
machines should actually be classified as earth
moving equipment. There are many different types
of equipment that fall in this category, such as
excavators, backhoe loaders, dump trucks, and
even loaders.
Dump trucks or production trucks are those that are
used for transporting loose material such as sand,
dirt, and gravel for construction. The typical dump
truck is equipped with a hydraulically operated open
box bed hinged at the rear, with the front being
able to be lifted up to allow the contents to fall
out on the ground at the site of delivery.
A skid steer loader with backhoe attachment or a backhoe
loader in general can be very productive if it is
operated safely and efficiently. The best way to
get the job done safely and efficiently is to know
yourself, the job site, and your equipment.
Also known as a front end loader, bucket loader,
scoop loader, or shovel, the front loader is a type
of tractor that is normally wheeled and uses a
wide square tilting bucket on the end of movable
arms to lift and move material around.
The company of Case has done it again, by introducing
yet another spectacular excavator, the CX700, which
weighs in at 70 metric tons and represents a new
size for Case, fitting perfectly between the CX460
and CX800 models. Case has also taken advantage of
Tier 3 technologies and upgraded the CX330, increasing
the power and improving fuel economy, all while adding
features that will enhance comfort for the operator
and simplify maintenance.
The D-11 from Caterpillar is among the series of
tracked type tractors are among the largest
conventional bulldozers in the world, second to the
Komatsu D575. It comes in two variations, the
standard D-11R and the bigger and heavier D-11R CD.
The CAT (Caterpillar) 420D and 430D backhoe loaders
are the high performance machines in the D series
lineup. The 420D boasts 85 HP and a backhoe digging
depth of 14 feet when equipped with a standard
stick.
Also referred to as a loader backhoe, the backhoe
loader is an engineering and excavation vehicle that
consists of a tractor, front shovel and bucket and
a small backhoe in the rear end. Due to the small
size and versatility, backhoe loaders are common
with small construction projects and excavation type
work.
The skid loader is a rigid frame, engine powered
machine with lift arms that are used to attach a
wide variety of labor saving tools or attachments.
Skid loaders are normally four wheel drive with
left side drive wheels that are independent of
right side drive wheels. With each side being
independent to the other, the wheel speed and
direction of rotation of the wheels will determine
which direction the loader turns.