Can you dig it? Add an excavator to your repertoire and you have the hydraulic-powered muscle to tackle an incredible range of tasks. These powerful machines, manufactured by the likes of Caterpillar and Bobcat, make short work of trench-digging and forestry work, and by shopping the huge inventory on eBay you have the opportunity to pick a make and model that fits your requirements and budget.
Hydraulic excavators usually couple engine power to (commonly) three hydraulic pumps rather than to mechanical drivetrains. The two main pumps supply oil at high pressure (up to 5000 psi) for the arms, swing motor, track motors and accessories while the third is a lower pressure (~700 psi) pump for pilot control of the spool valves; this third circuit allows for reduced physical effort when operating the controls. Generally, the 3 pumps used in excavators consist of 2 variable displacement piston pumps and a gear pump. The arrangement of the pumps in the excavator unit changes with different manufacturers using different formats.
Knowing how much tractor you need is a separate problem all together. The answer depends on the work you intend to do. What implements will it pull? Is the main job brush hogging an established pasture or finish-cutting a lawn? Do you need tires that won’t trash the yard or more aggressive treads and 4-wheel drive so it won’t get bogged down in the woods? I was after a 30-to 50-horse machine with 4-wheel drive, and a frontend loader. Because much of my land is forest that I’m clearing for food plots and pasture, I wanted something heavy enough to take a beating and pull an 8-foot tiller or brush hog.
Save time and money by using a skid steer loader to shoulder the weight of time-consuming, labor-intensive tasks. Sellers on eBay offer a wide selection of these small and incredibly versatile laborsaving machines, including models from big-name brands such as John Deere, Caterpillar, and Case. With such a large choice of heavy equipment, in new, used, and refurbished condition, it is easy to find exactly what you need, whether it is for domestic or commercial use.
Unlike in a conventional front loader, the lift arms in these machines are alongside the driver with the pivot points behind the driver's shoulders. Because of the operator's proximity to moving booms, early skid loaders were not as safe as conventional front loaders, particularly during entry and exit of the operator. Modern skid loaders have fully enclosed cabs and other features to protect the operator. Like other front loaders, it can push material from one location to another, carry material in its bucket or load material into a truck or trailer.
For sale is a 2005 Caterpillar 304CR Excavator, Cab/Heat/Air, Aux Hydraulics, Mechanical thumb,2 Speed, Backfill Blade, VERY GOOD tracks, Cat Coupler, 10,844# Operating weight, 43 HP Diesel engine, 4,221 Hours. Cranks right up and runs good, Tracks straight, turns strong both directions. Has some dents/dings/scratches but seems to be mechanically pretty sound. Cylinders all seem dry.
Excavators (hydraulic) are heavy construction equipment consisting of a boom, dipper (or stick), bucket and cab on a rotating platform known as the "house". The house sits atop an undercarriage with tracks or wheels. They are a natural progression from the steam shovels and often mistakenly called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors. Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators which use winches and steel ropes to accomplish the movements.
A skid-steer loader can sometimes be used in place of a large excavator by digging a hole from the inside. The skid loader first digs a ramp leading to the edge of the desired excavation. It then uses the ramp to carry material out of the hole. The skid loader reshapes the ramp making it steeper and longer as the excavation deepens. This method is particularly useful for digging under a structure where overhead clearance does not allow for the boom of a large excavator, such as digging a basement under an existing house. Several companies make backhoe attachments for skid-steers. These are more effective for digging in a small area than the method above and can work in the same environments. Other applications may consist of transporting raw material around a job site, or assisting in the rough grading process.
For those seeking a micro-excavator for urban or residential work, the Bobcat 325G track excavator offers the ability to perform excavation work in tight areas. Powered by a 27.7 horsepower Kubota diesel motor, the 325G is biased toward smaller excavation work like irrigation trenching, digging out smaller pools, and excavating pads for small structures.
Skid-steer loaders are typically four-wheel vehicles with the wheels mechanically locked in synchronization on each side, and where the left-side drive wheels can be driven independently of the right-side drive wheels. The wheels typically have no separate steering mechanism and hold a fixed straight alignment on the body of the machine. Turning is accomplished by differential steering, in which the left and right wheel pairs are operated at different speeds, and the machine turns by skidding or dragging its fixed-orientation wheels across the ground. The extremely rigid frame and strong wheel bearings prevent the torsional forces caused by this dragging motion from damaging the machine. As with tracked vehicles, the high ground friction produced by skid steers can rip up soft or fragile road surfaces. They can be converted to low ground friction by using specially designed wheels such as the Mecanum wheel. Skid-steer loaders are capable of zero-radius, "pirouette" turning, which makes them extremely maneuverable and valuable for applications that require a compact, agile loader. Skid-steer loaders are sometimes equipped with tracks instead of the wheels, and such a vehicle is known as a multi-terrain loader.
Case IH farm tractors benefit from the latest technologies that allow customers to maintain productivity and efficiency while reducing fuel consumption. John Deere provides a powerful range of farm equipment that give you the performance and all what you need for an optimal farming work. Discover your future farm tractor from a large range of John Deere farm tractors.
Police blow up excavators in southwestern Colombia, near the community of Barbacoas. — Jim Wyss And Kyra Gurney, miamiherald, "Dirty gold is the new cocaine in Colombia — and it’s just as bloody," 16 Jan. 2018 Eight large excavators were being used to clear the debris from Montecito Creek, Tom Fayram, the deputy director of the county's flood control district, said. — CBS News, "Southern California mudslides: 20 dead after crews recover body," 14 Jan. 2018 The new team of excavators is being trained under the expertise and tutelage of Marina Elliott and Becca Peixotto. — Lydia Pyne, Ars Technica, "Rising Star found a new species—now it wants to find a new way for paleoanthropology," 20 Dec. 2018 Over the course of the first field season, all of the excavators—underground astronauts, a term the media seized on—took turns on shift. — Lydia Pyne, Ars Technica, "Rising Star found a new species—now it wants to find a new way for paleoanthropology," 20 Dec. 2018 One day late last week, 19 bulldozers, four road graders, six excavators and about a dozen water tenders were assigned to make repairs at the Mendocino Complex Fire, Meyers said. — Jonathan J. Cooper, Fox News, "Firefighting mars the earth. California crews are fixing it," 15 Aug. 2018 The teams and one excavator arrived after dark Tuesday to investigate. — Todd Pitman, The Seattle Times, "In quake-hit Indonesia, a challenge to recover the dead," 7 Aug. 2018 President Rodrigo Duterte was present in Manila recently as over 100 Vespa scooters, a Harley-Davidson and and several other motorcycles and SUVs were destroyed by an excavator. — Gary Gastelu, Fox News, "Philippine government crushes over 100 illegally-imported motorcycles," 13 June 2018 Large excavators and other construction equipment was used to demolish part of the home during the search for the bodies. — Adam Ferrise, cleveland.com, "Fourth body found inside Cleveland home after fire, officials say," 30 Jan. 2018
The Melroe brothers, of Melroe Manufacturing Company in Gwinner, North Dakota, purchased the rights to the Keller loader in 1958 and hired the Kellers to continue refining their invention. As a result of this partnership, the M-200 Melroe self-propelled loader was introduced at the end of 1958. It featured two independent front-drive wheels and a rear caster wheel, a 12.9 hp (9.6 kW) engine and a 750-pound (340 kg) lift capacity. Two years later they replaced the caster wheel with a rear axle and introduced the M-400, the first four-wheel, true skid-steer loader. The M-440 was powered by a 15.5 hp (11.6 kW) engine and had an 1,100-pound (500 kg) rated operating capacity. Skid-steer development continued into the mid-1960s with the M600 loader.
There are two main types of "Control" configuration generally use in excavators to control the boom and bucket, both of which spread the four main digging controls between two x-y joysticks. This allows a skilled operator to control all four functions simultaneously. The most popular configuration in the US is the SAE controls configuration while in other parts of the world, the ISO control configuration is more common. Some manufacturers such as Takeuchi have switches that allow the operator to select which control configuration to use.
Since 1982, Eden Tractor has provided sales and service’s to the South-towns as well as all of Western New York, and the Buffalo area. We provide outstanding sales and service to people, farmers, homeowners, municipalities, Buffalo Colleges and Schools and other outdoor workers. Eden Tractor and Equipment has been dealing in tractors and equipment for over 50 years. Make Eden Tractor your first stop when purchasing new equipment or looking for quality service on your existing equipment.