Excavators come in a wide variety
The smaller ones are called a mini-excavator or compact excavator.
years, hydraulic excavator capabilities have expanded far beyond
excavation tasks. With the advent of hydraulic powered attachments such
as a breaker, a grapple or an auger, the excavator is frequently used in
many applications other than excavation. Many excavators feature
quick-attach mounting systems for simplified attachment mounting,
dramatically increasing the machine's utilization on the job site.
Excavators are usually employed together with loaders and bulldozers. Most wheeled versions, and smaller, compact excavators have a small backfill (or dozer-) blade. This is a horizontal bulldozer-like blade attached to the undercarriage and is used for pushing removed material back into a hole.
Excavators are also called diggers and 360-degree excavators, some times abbreviated simply to a 360. Tracked excavators are sometimes called trackhoes by analogy to the backhoe. Even though the 'back' in backhoe refers to the action of the bucket (which pulls "back" toward the machine) and not the location of the shovel, excavators are also occasionally referred to as fronthoes or even just "hoes" .
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Even though the text
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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.
Other machinery that falls in between are articulated trucks, wheel and track tractors, and even scrapers. The thin line is normally drawn at motor grades, which are more than capable or light duty excavation, although they are mainly used to level lots and grade roads.
If you take a glance at any equipment literature from leading companies such as CAT, Komatsu, or Case, you'll see right away that they believe the biggest and most important change over the last several years is increased productivity. This is normally followed by greater comfort and safety.
The increase in productivity is the result of many different advancements. CAT (Caterpillar) cites that more powerful engines with a faster rise in torque which allows machines to respond faster to increased power demands. Even though this new generation is far more powerful, it has a reduced impact on the environment as well.
Electronics Most of the newer machines have electronic control systems that will optimise both engine and transmission performance, as well as fuel consumption and hydraulic system performance.
Take for example the CAT mid sized G series wheel loaders that feature electronically controlled power shift transmissions. Each and every transmission offers auto shift capabilities that ease the pressure on the operator, and an electronic clutch pressure control that smooth shifts the gears for longer life.
Comfort In the industry, good operators are getting harder and harder to find. Manufacturers find themselves stressing that operator comfort and convenience need to be taken into account not only to make the job easier, but also more efficient and productive as well.
The new cab designs offer better visibility, reduced noise and vibration, and improved comfort as well. The new control systems will require low operator effort while also improving the control of the machine for both the experienced as well as the in-experienced operator.
Easier maintenance Almost all new machinery offers electronic monitoring systems that will provide constant information on the health of the machine for the operator. These types of systems provide information to technicians, including service modes that will help them to diagnose conditions quickly.
Now days, machines are designed to make routine maintenance easier. With CAT's wheel loaders, regular service points are easy to access from ground level, with site gauges making it easier to check the fluid of the radiator, hydraulic oil, and transmission - without having to use dipsticks.
Changes for the better If you compare the excavation equipment of today with the machines of the past, you'll notice that the changes are better. The machines of the past relied more on operator skill and technique, as very few of them had electronic features.
Today, almost all types of heavy machinery offer electronic features. Electronics are a great thing, as they can make the life of an operator easier than ever. You don't need to get out and check the fluids anymore, as all you need to do is take a look at your instrument panel, which can help to save you a lot of time.
Operators who have a lot of experience know first hand that machines of the past can't begin to compete with machines of today. With technology always getting better, it just makes you wonder what is in the future for heavy machinery. Years from now, one can only begin to wonder just great heavy machinery will get - and what other features will make the life of an operator even easier than it is now.
EXCAVATION EQUIPMENT INDEX LISTING
Self education or personal use
Loader || Bulldozer
CX330 || Case
CX700 and CX330 || Caterpillar
D-11 || Caterpillar
Caterpillar Equipment || Compact Excavator || Cranes || Hydraulic Machinery || Dump Truck || Easy Site Prep
Forklift || Excavation || Front Loader || Harvester || Equipment Has Changed || Trenchers to Compact Excavators
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