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What is Excavator

Excavators are heavy construction equipment primarily consisting of a boom, dipper, bucket and cab on a rotating platform known as the "house" - although the largest form ever, the dragline excavator, eliminated the dipper in favor of a line and winch.

Benefits of Excavator

Enhanced Excavation Speed and Precision
One of the clearest benefits excavators provide is faster, more targeted excavation abilities over manual methods. Workers digging with shovels and picks work slowly, have limited reach, and can only manage moving small amounts of dirt per shovelful.
In contrast, excavators dug in minutes what would take workers hours to shovel by hand. The arm and bucket penetrate deep into the ground and scoop large volumes of earth out efficiently. Operators have unmatched control over dig location, depth, and direction.
Excavators also excel at precision work like digging narrow trenches or foundations. Their hydraulic power and maneuverability allow careful scooping and digging even in tight spaces. Excavation speed, capacity and accuracy is far superior to human capabilities.

Ability to Dig Dense or Hardened Soil
In addition to wider reach and more controlled digging, excavators have the power and strength to penetrate dense or hardened soil that human shovels simply cannot dig through. Excavators excel at breaking up and removing rock-like earth.
Trying to shovel out dense, compacted earth is inefficient or impossible without mechanical equipment. Excavators are purpose-built to rip through hardened ground using hydraulic force combined with shear strength.
Even on softened ground, excavators enable digging deeper than feasible by hand. Their strength and force mean no subsurface deposits or conditions present barriers. Excavators open up access to depths and densities impossible through traditional excavation approaches.

Reduced Health Hazards and Injuries
In additional to being slower, manual excavation carries significant health and safety risks from overexertion, strained muscles, repetitive motion injuries and more. Shoveling large volumes can easily result in back injuries or heat exhaustion on workers.
Excavators nearly eliminate these hazards – The machine handles all the difficult digging. The operator is safely seated and uses hydraulic controls. This removes the back-breaking labor and bodily wear and tear that comes with direct manual excavation.
By preventing exertion injuries and exhaustion, excavators provide a much healthier and safer excavation technique. Construction companies see drastically lower incident rates when utilizing mechanical excavation rather than relying solely on human effort. Worker well-being is greatly improved.

Continuous Work and Extended Reach
When excavating manually, workers tire quickly and need frequent breaks. Shoveling and digging is exhausting! This start-stop process slows overall workflow and project timelines. Workers also have limited reach and strength to excavate deeper trenches or sites.
Meanwhile, excavators can operate continuously with no fatigue issues or pauses. Operators can comfortably dig for hours, days or weeks non-stop. Excavators also provide far greater digging depth and reach into spaces not accessible by human capabilities.
By enabling constant excavation without breaks or exhaustion, excavators dramatically accelerate project timelines and productivity. Their extended horizontal and vertical reach allows excavating areas previously unworkable through manual means.

Precise Control and Reduced Waste
Precision control is crucial for excavation around existing structures, utilities, or sensitive areas. Humans digging with shovels lack precise control, raising the risk of accidental damage and costly errors. Their margins for error are wider.
Excavators provide extremely precise and controlled digging. Experienced operators can expertly manipulate buckets in tight quarters or carefully uncover buried utilities. The hydraulic controls enable delicate scooping and digging unlike manual techniques.
This precision also reduces unnecessary waste. shoveling is not as exact, resulting in removing excess dirt that only gets redeposited. Excavators take away only the exact amount of material needed, minimizing excess debris and unnecessary effort.

Customizable Pit Drilling Rigs
Tractor attachment hole digger is a mechanical equipment that uses a tractor as a power source. It is mainly used to drill holes in land, frozen soil, and ice. It is widely used in gardening, planting, tree planting, geophysical
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Tractor 3 Point Suspension Hole Digger
A tractor three-point suspension digger is an agricultural machine that is connected and operated by the tractor's three-point suspension system and is used to dig holes in the field. It is often used for work that requires digging holes,
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Tractor New Type Post Hole Digger
Tractor new type post hole digger is an efficient agricultural and engineering machinery tool, commonly used to quickly dig circular holes in farmland, orchards, pastures, guardrail installation and other engineering projects. The
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Tractor Post Hole Digger
Tractor post hole digger: agricultural machinery for efficient hole digging. The tractor post hole digger is an agricultural machine designed to be used with tractors, primarily for digging holes of various sizes in the land.tractor post
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Tractor Tree Hole Digger
Tractor Tree Hole Digger is a special machine for quickly digging pits for afforestation and fertilization in mountainous, hilly and gully areas. The pit digger frees people from heavy physical labor and is widely used in afforestation,
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High Power And High Efficiency Auger
The tractor spiral digger is also called an auger. This machine needs to be installed on a tractor and an excavator. It is suitable for working environments such as sand, hard ground, afforestation or fruit tree planting. It can also be
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High Quality Tractor Auger Excavator
The tractor spiral digger needs to be installed on a tractor and excavator for use. It is suitable for sandy land, hard land, afforestation or fruit tree planting, and greening and tree planting on both sides of the road. The diameter of
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Tractor Digging Machine
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China Tractor Hole Digger
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Tractor Earth Auger Hole Digging Machine
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Tractor Hole Digger
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What Are The Different Types Of Excavators?

Crawler Excavators
Crawler excavators are the most common type of excavator, used for heavy-duty tasks like excavating foundations, digging trenches, and moving materials. These types of excavators have long tracks that help them move over uneven terrain.

Wheeled Excavators
Wheeled excavators are similar to crawler excavators, but have wheels instead of tracks, which makes them easier to maneuver on paved surfaces. Wheeled excavators are typically used for lighter-duty tasks like roadwork, landscaping, and demolition.

Long-front Excavators
Long-front excavators have a boom that can extend over 100 feet, allowing them to reach areas that most other excavators can't. Long-front excavators are typically used for tasks like power line installation, demolition, and bridge construction.

Backhoe Excavators
Backhoe excavators have a boom, stick, and bucket in the back, and a large loader on the front. These excavators are typically used for landscaping and excavation.

Skid Steer Excavators
Skid steer excavators are similar to backhoe excavators, but are smaller and easier to maneuver. Skid steers are typically used for landscaping, snow removal, and other small excavation tasks.

What Are Excavators Used For?

Construction: In the construction sector, excavators are the go-to machines for various tasks. They’re essential for digging foundations, grading land, and trenching for pipes and cables. Their powerful buckets can break through even the toughest soil, making them ideal for site preparation.

Demolition: Equipped with attachments like breakers and crushers, excavators can bring down buildings and process debris, clearing the way for new structures.

Material Handling: With the right attachments, excavators can move large quantities of materials — from sand and rocks to concrete and scrap metal.

Mining: Excavators are critical in mining operations for extracting minerals, digging shafts, and moving overburden.

Forestry: In forestry, excavators with special attachments perform tasks such as cutting trees, removing stumps, and loading logs.

Landscaping: Smaller excavators are often used in landscaping to sculpt landforms, dig ponds, and prepare gardens.

Snow removal: In colder climates, excavators with snow plow attachments can clear snow from roads and other surfaces.

Disaster Cleanup: Following natural disasters, excavators can help remove debris, assist in search and rescue, and aid in the reconstruction process.

Dredging: Excavators maintain waterways, harbors, and docks, ensuring they are navigable and free from sediment build-up.

Underwater Operations: Specially adapted excavators can even work underwater to repair pipelines or construct underwater structures.

Road Construction: They play a critical role in cutting and filling during the construction and maintenance of roads.

Things to Consider When Choosing the Right Excavator

Engine Power
Excavator selection highly depends on Engine Power. High Power provides high digging forces to operate excavators in tough working conditions and deliver high productivity. Along with power, an ideal engine should be smooth in operation, make low noise and eject less smoke while at operation. The engine should have low cost of operation with easy maintenance.

Operating Weight
Hydraulic Excavators are majorly categorised based on their operating weight. Operating weight must be defined based on the application to be performed and work quantity to be handled. Thus, while purchasing an excavator, one must ensure the machine you choose has an operating weight that matches your job requirement. Lifting Capacity of an excavator also depends on its operating weight.

Lifting Capacity
The lifting capacity of an excavator is based on the machine’s weight, lift point position, centre of gravity, and hydraulic capability. Note that the lifting capacity is also limited by the excavator’s tipping stability and hydraulic capacity. When it comes to excavator size classes, large ones are capable of lifting bigger and heavier materials. A general rule of thumb in such cases is that for heaviest lifts, standard and large excavators are powered by hydraulics. Thus, such excavators are suitable for heavy-duty operations.

Worksite Conditions/ Application
One must consider the worksite conditions and application to be performed while choosing the excavator. Do you intend to work in tight spaces or open environments? Will you be driving excavators on roads? Are you purchasing excavator for general construction, earthwork, mining or demolition?
Such factors will help you choose the correct excavator without hampering the efficiency of your operations.

Bucket Capacity
The bucket capacity of an excavator is the amount of material carried inside the bucket plus the amount piled on top of it. This is called heaped or rated capacity. A heap is how much material is piled on top of a bucket depending on the angle of repose of the material being carried. The bucket capacity must consider several factors, like the type of materials the excavators will be handling, what size of bucket you need, and the overall size of the operation.

Hydraulic Attachments
While excavators are usually pictured with a bucket, different fixtures can be attached. Needless to say, all these attachments are hydraulic and can perform unique operations. Some commonly used attachments include rock breaker, quick coupler, grapple, rakes, rippers, tilt couplers, quick hitch, grab attachments, etc. An excavator may better serve heavy projects or require multiple tool attachments with a hydraulic system.

Budget
The last but not the least factor to consider is your budget. Here, you must consider several factors like how often you use an excavator, storage and maintenance, target operating cost per hour, and does it make more sense to rent or buy. While large excavators are expensive, choosing a piece of equipment too small is not a wise decision either. You can use an excavator sizes chart to compare different excavators to make an educated decision.

Signs Your Excavator Needs Repairs

Warning light indicators turned on

A warning light lets you know a component in your equipment isn't working correctly.

Low fluid levels

Low hydraulic fluid or oil levels can signify a filter leak or another issue.

Abnormal noises

When components make unusual noises, it's often a sign that something is wrong. Sounds like hissing, screeching or grinding often indicate a need for corrective action.

Malfunctioning part or system

A component breakdown can start a chain reaction throughout your excavator, causing a feature or system to stop working.

5 Maintenance Tips for Your Excavator

Maintain And Clean Your Undercarriage
Working in dirty, muddy terrains can cause undercarriage buildup. Clean your undercarriage routinely to remove dirt and debris, and prevent unnecessary wear to your excavator. When inspecting your undercarriage, look for damaged or missing pieces, and oil leaks.

Check Your Tracks
Check to see that your tracks have the right tension. Tracks that are too loose or too tight can result in excess wear to tracks, chains and sprockets.

Change Out Your Air And Fuel Filters
While operating your excavator outdoors, debris can accumulate in your machine's air, fuel and hydraulic filters. Regularly cleaning and changing out your filters can help your excavator run its best for longer.

Monitor Fluid Levels
On a daily basis, check to see that all fluid levels are at their recommended levels. Check engine oil and hydraulic oil levels prior to operating your excavator to ensure it's working well throughout the day.

Drain Water Separator
As excavators sit outdoors overnight, condensation can often build up in the engine. To prevent corrosion from trapped water becoming steam, drain your water separator daily.

10 Main Parts Of An Excavator

Boom
The boom is a fundamental component of an excavator. This large main part extends outward from the machine's body. It primarily provides the excavator with its reach, allowing the operator to position the arm and bucket precisely for digging, lifting or placing materials. Booms come in various lengths and configurations, depending on the excavator's intended application. Long booms are generally used for tasks requiring an extended reach, while shorter booms are better for confined spaces.

Arm
The arm, also called the stick, connects the boom to the bucket and helps control the excavation's depth and precision. By extending and retracting the arm, the operator can adjust the distance between the boom and bucket, enabling precise digging, grading and lifting. The arm's length varies depending on the excavator's size. While mini excavators have shorter arms for better maneuverability in tight spaces, larger excavators have longer sticks, allowing for deep excavations.

Bucket
The bucket is the attachment at the end of the arm responsible for digging, scooping and carrying materials. Buckets come in various shapes and sizes, each designed for specific tasks. Excavator buckets typically have teeth or cutting edges for breaking through tough soil or rock. They can be swapped out for other attachments, like grapples or thumbs, to expand the excavator's capabilities. The bucket's size and shape significantly affect productivity and efficiency, so choosing the right one for the application is important.

Cab
The cab is the operator's compartment. It contains the operator's seat and the control panel. From here, the operator manages the machine's functions, using various controls, joysticks and pedals to operate the boom, arm, bucket and other movements like rotation and travel. Modern excavator cabs are equipped with air conditioning, ergonomic seating and advanced technology, enhancing operator safety, comfort and productivity.

Undercarriage
The excavator's undercarriage supports the machine's weight, provides stability and facilitates movement. It includes tracks or wheels, depending on the excavator type. Tracks offer excellent traction and weight distribution, enabling crawler excavators to navigate rough and uneven terrains more easily. Wheeled excavators provide maximum agility on smoother surfaces such as asphalt and allow more mobility. The undercarriage may have features like adjustable width or retractable tracks to adapt to various job site conditions, ensuring the excavator's stability and maneuverability.

Engine
Excavator engines usually run on diesel fuel. The engine's size and power output depend on how big the excavator is and how it's used. Modern engines are designed for improved efficiency and reduced emissions to meet strict environmental standards. Engines power the excavator's movements and supply the energy needed to operate the hydraulic system.

Hydraulic System
The excavator's hydraulic system is a complex network of high-pressure hoses, pumps, valves and cylinders that control the movements of the boom, arm and bucket. Using the hydraulic system, the operator manipulates these components to complete tasks. The hydraulic system is exceptionally responsive and powerful, making it an essential part of the excavator. It provides the strength needed to carry out heavy-duty tasks while maintaining accuracy and control in the operator's hands.

Counterweight
The counterweight is a heavy component, often located at the excavator's rear. It provides balance and stability during lifting and digging operations. Since the excavator's bucket at the front is frequently loaded with materials in the bucket, the counterweight opposes the weight of these materials to prevent the excavator from tipping over. Counterweights are adjustable and can be tailored to the machine's specific requirements, ensuring safe operation and preventing accidents.

Swing Gear
Swing gear, typically loaded at the machine's base, allows the excavator to perform a 360-degree rotation. This feature is essential for positioning the bucket accurately and efficiently without needing to reposition the entire machine. The operator can easily swing the excavator to reach different work site areas. It greatly enhances productivity and versatility, as the excavator can work within a wider radius without physically moving the undercarriage.

Blade
Some excavators are equipped with an optional blade at the front end for leveling and grading tasks. The operator can adjust this blade to control the grading depth and angle, making it a critical feature for projects requiring precise earthwork and leveling. The blade complements the excavator's digging and material-handling capabilities, transforming it into a versatile machine for site preparation and finish grading work.

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Company Profile

The company is located in Jining, Shandong, known as the hometown of Confucius and Mencius and the land of etiquette. It is a group enterprise that integrates scientific research and development, processing and manufacturing, and trade services. It includes multiple departments such as the technology center, domestic trade department, international trade department, production department, quality inspection department, logistics department, and after-sales department, working together as a team. After years of hard work and innovation, we have become a professional mechanical manufacturer that specializes in scale, complete sets, technology, and energy conservation.

Asked Questions

Q: What are the basics of excavator?

A: Think of the arm of a hydraulic excavator as if it were your arm. Like ours, it has joints that allow them to move in different directions and muscles that provide the power to move them. In a hydraulic excavator, hydraulic cylinders power the joints, while the hydraulic system acts as the muscles.

Q: What not to do when operating an excavator?

A: Common Mistakes Made When Operating An Excavator- Hire Tips
Understanding the counterweight. The counterweight is the rear part of an excavator that sticks out. ...
Positioning tracks and digging over sides. ...
Working down in layers. ...
Decompressing breaker attachments. ...
Swinging Excavator. ...
Parking when finished using.

Q: Is 7000 hours a lot for an excavator?

A: Typically 7,000 to 10,000 hours before replacement is needed. Major repairs likely required especially to undercarriage and tracks. Designed to operate in challenging conditions such as uneven, rocky, and damp terrains.

Q: What to check before starting an excavator?

A: Before you start your day, here are some good things to have in your daily pre-start excavator guide:
Check your cab air filter. ...
Also found behind your cab, you should check the engine air filter and the electrical box. ...
Look for leaks in the hydraulic line – you don't want a severe leakage or heat in the system.

Q: What are the best tips for excavators?

A: Set your excavator facing the work area. Avoid digging over the side. Every excavator has a maximum digging envelope. Within that is a working range that is the most efficient.

Q: Can an excavator flip over?

A: We had an accident and excavator recovery all in one day. The excavator, John Deere 130, flipped on her side and we had to call in some backup to help get it recovered.

Q: What is the life expectancy of an excavator undercarriage?

A: As we've already mentioned above, the longevity of steel excavator tracks can vary depending on various factors such as the operating conditions, maintenance practices, and the quality of the tracks themselves. On average, well-maintained steel excavator tracks can last anywhere from 1,500 to 7,000 hours of operation.

Q: What is high hour on an excavator?

A: In this blog, we explore the average lifespan of an excavator to help you assess whether you will get your money's worth from a purchase. On average, a well-maintained excavator with no damage will last you somewhere between 7,000 and 10,000 hours.

Q: How often should you grease an excavator?

A: The excavator needs to be greased every day that it's on the job. Too little grease will cause accelerated wear because it won't provide enough lubrication.

Q: What important skill is needed by an excavator?

A: Hand-Eye Coordination: Excavator operation demands precise hand-eye coordination. Operators must be able to control the machine's movements smoothly, accurately position the bucket, and manipulate the controls with finesse. Developing this skill is crucial for achieving precise digging, loading, and lifting.

Q: What is the most common excavator control pattern?

A: The most commonly used control pattern throughout the world is the ISO controls. In the ISO control pattern, the left hand joystick controls Swing (left & right) and the Stick Boom (away & close), and the right hand joystick controls the Main Boom (up & down) and Bucket motions (close & dump).

Q: What is the most popular excavator size?

A: Standard excavators, falling within the 10 to 45-ton weight class, are the most commonly seen on construction sites. These versatile machines can handle a wide range of tasks and are suitable for various applications.

Q: What is the proper digging position for an excavator?

A: It's a good rule of thumb that by the time your stick reaches the vertical position on a reach, the bucket should be loaded. While you dig, you can reposition the excavator undercarriage either forward or backward as needed in order to retain the ideal 35° to 45° degree digging range.

Q: How many times can you swing an excavator to the left?

A: The excavator will unscrew itself after you swing it 16 times to the left.

Q: What is considered high hours on an excavator?

A: Many contractors end up taking hydraulic excavators out of primary production at about 9,800 hours of use. By the time an excavator reaches that number, most components, aside from the engine, have seen some sort of major repair or replacement.

Q: Do excavators hold their value?

A: Durability: Excavators are durable pieces of equipment that can withstand a lot of wear and tear. They are also easy to maintain if you follow routine inspections. Resale value: One of the greatest benefits of investing in a mini excavator is that these machines have a high resale value.

Q: What is the speed limit on an excavator?

A: Our MCR excavators can go up to 6.2mph (10km/h) to help you eliminate non-added value from your job site.

Q: What do you call the boom on an excavator?

A: There are a few different types of booms that can be found on excavators. The most common is the mono boom – the arm bends in one direction only. There are knuckle booms or hinge booms that allow for alternative rotation and movement.

Q: Can an excavator tip over?

A: Excavator tip-overs can occur due to a variety of reasons, often attributed to human or machine error, unstable ground conditions, or improper machinery operation.

Q: What to do before starting an excavator?

A: Engine performance – Start the engine and check that it runs smoothly, with no unusual sounds or vibrations. Hydraulic system – Check for any leaks in the hydraulic system and verify that all hydraulic components are functioning properly. Tires – Check the tire pressure and inspect for any damage or excessive wear.

As one of the leading excavator manufacturers in China, we warmly welcome you to buy discount excavator in stock here from our factory. All customized products are with high quality and low price.

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