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Excavator Parts in Oklahoma - Excavators are important machines that are used in a variety of industries. These machines are capable of moving heavy dirt loads much faster in comparison to manual labor. These machines are used in landscaping, agricultural applications, road work and bridge work along with the construction industry. Excavators go by many names including diggers, mechanical shovels, 360-degree excavators and tracked models are often called trackhoes. Excavators can be equipped with numerous attachments to facilitate a range of jobs including grading and landscaping, demolition with a cutter, breaker and hydraulic saw attachments, material handling, river dredging, forestry, construction, open-pit mining, regular mining, driving piles when working with a pile driver, digging holes, foundations and trenches, snow removal with snowplow and snowblower attachments, drilling for rock blasting and footings with hydraulic auger attachment or drill, mulching for forestry and more. An excavator is a popular kind of heavy construction equipment made up of particular parts. The stick or the dipper, cab, boom and bucket are located on top of the house which is a rotating platform. The house is situated on top of an undercarriage that has tracks or wheels. Excavators have evolved from steam shovels of yesteryear. The hydraulic excavating models rely on hydraulic fluid to finish all movement and functions. The hydraulic cylinders feature linear actuation making them different from excavators that are cable-operated, relying on steel ropes and winches instead. Excavator Models There are numerous sizes and models when it comes to hydraulic excavators. Tiny and compact models weigh approximately 2k lbs. while the largest models weigh in around 2m lbs. Modern hydraulic excavators rely on engine power to operate three hydraulic pumps as opposed to mechanical drivetrain operations. Two of the pumps supply high-pressure oil for the track motors, swing motor, arms and accessories. The third low-pressure pump supplies power for pilot control of the spool valves. This setup enables less physical effort required for the operating controls. The three excavator pumps typically consist of a gear pump and two variable displacement piston pumps. These pumps are arranged in the excavator in a variety of formats depending on different manufacturer models. The House and the Undercarriage The two main aspects of the machine are made by the undercarriage and the house. The undercarriage is comprised of the tracks, track frame, the gears and the hydraulic motor that operates the blade tracks. The house consists of the operator cab, the counterweight, hydraulic oil tanks, fuel and the engine. A center pin connects the undercarriage to the house. High-pressure oils are supplied to the tracks on the hydraulic motor via a pin axis found on the hydraulic swivel. This design allows the excavator to move freely in 360 degrees. The house is attached to the main boom and various configurations are available. Mono booms are among the most common. This kind of boom offers zero movement other than up and down motions A knuckle boom is another option which allows it to move right and left in line with the machine. Typically an option on compact excavators, the booms’ base has a hinge option that enables it to pivot one-hundred and eighty degrees independently to the house. Triple articulated booms are also on the market. At the end of the boom, the stick or dipper arm is located. This apparatus provides the required digging force to drag the bucket through the ground. The length of the stick is optional depending on whether breakout power or reach is necessary. Longer stick models are utilized for reach applications, while shorter sticks are used for breakout power situations. A bucket is typically attached to the end of the stick. A mud bucket describes a large, wide capacity bucket that has a straight cutting edge used for leveling and cleanup or wherever teeth are not needed. General-purpose bucket designs commonly are used to break up hard ground and difficult rocks, with their side cutters and hardened teeth that are typically smaller and stronger. There are many different buckets of varying sizes for different applications. Numerous attachments can be used for ripping, lifting, cutting, boring, crushing, and more. Before the 1990s, the excavating machines were outfitted with a conventional counterweight that was located at the back of the equipment. This design enabled the machine to conquer more digging force and lifting capacity. As one can imagine, this became cumbersome when working within confined spaces. The counterweight of modern machines today is designed to stay in the width of the tracks making it much safer and more user-friendly within confined spaces. In excavators, there are two main kinds of control configuration to operate the bucket and the boom called the ISO and the SAE. This configuration disperses the top four digging controls between two separate y-x joysticks, providing the operator with simultaneous control over all four movements. Some models have switches that enable the operator to choose which configuration they prefer. Regular excavation and bucket jobs have been surpassed by hydraulic excavators. Many attachments including an auger, a grapple or a breaker have become common hydraulic powered attachments. There are models that offer a quick coupler feature to simplify attachment mounting and increase efficiency. Excavators often work beside loaders and bulldozers. The majority of medium and compact sized wheeled models have a dozer blade or a backfill blade. This horizontal blade attaches to the undercarriage. It is used for pushing and leveling material back into a hole. 8 Main Excavator Types There are eight main kinds of excavators including the dragline, long reach, crawler, bucket wheel, backhoe, steam shovel, skid steer and suction. Steam Shovel Steam shovels are one of the original types of excavators. They relied on steam energy while today’s models use electric or diesel motors. Steam shovels resemble backhoes with the shovel or bucket facing away from the machine as opposed to towards the unit. This design allows the operator to push dirt away from the unit instead of pulling the earth towards it. Steam shovels are popular for digging around objects that might interfere with a regular backhoe. Backhoe Backhoes are one of the most popular kinds of excavators. This equipment consists of a wheeled track base and large bucket that extends from an arm or boom above the ground. The operator can scoop earth toward the machine as the design has the bucket facing the operator’s cab. These machines come in multiple sizes including compact residential models suitable for backyard applications up to heavy-duty versions used in bridge building and dredging waterways. The more compact units are ideal for accessing smaller spaces and this offers a 200-degree swiveling range for digging close to the machine. Dragline Excavator Dragline excavators are designed similarly to a backhoe and include numerous lines and cables to support the bucket pulling motion. The dragline design enables operators to obtain a longer reach while digging deeper compared to a traditional backhoe. The cable and booms let users work over wet or unstable ground and in difficult locations unattainable by regular models. Skid Steer Excavators Skid steers have buckets and booms that face away from the operator. This design allows attachments to reach over the cab as opposed to around it. This design makes skid steers useful for negotiating tight turns and narrow locations. They are commonly employed for residential projects like site cleaning, digging pools and removing debris within limited space. Suction Excavator The suction excavator looks similar to a dump truck and relies on vacuum technology and a large hose to suck earth and rocks out of the ground. The material is transferred back to the truck. The suction excavator ensures a safer environment for digging around equipment and underground pipes compared to typical backhoes. Crawler Excavators Crawlers run on two tracks and not wheels. They are popular in the mining and construction industries. Also called compact excavators, these machines rely on hydraulic power components to lift heavy soil and debris. The machine can travel down hills thanks to the chain wheel configuration that makes these machines excellent for difficult and hilly terrain. Crawlers are slower in comparison to other models but offer better stability, flexibility and balance. Long Reach Excavators The long reach excavator showcases lengthier boom and arm components. Long reach excavators are excellent for hard-to-reach locations. This machine offers over one hundred feet of horizontal reach. These machines are often used for demolition in applications working over a body of water. Numerous attachments can be attached to the arm to complete jobs including shearing, crushing and cutting. Bucket Wheel Excavator These machines consist of a large front wheel that has built-in buckets and shovels. As the wheel rotates, rocks and dirt are scooped up in the buckets. The material is transferred to a conveyor belt that is part of the machine. The belt transfers the material into a bin that may be separate from the model or a part of the machine.