All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
(93 products available)
Excavators are heavy construction machinery used for digging. Keeping their usage broader, they are also helpful for other tasks like cutting, loading, drilling, lifting, etc. The excavators available in the market can be categorized based on their structure, working mechanism, and usage.
Property
An excavator's property divides various excavators by their structure and shape. Wheel excavators are mounted on wheeled chassis excavators well-suitable for roadwork, urban construction, and other projects requiring high mobility on paved surfaces. Mini excavators are excavators with short tails or those that can rotate within their footprint, making them suitable for confined spaces or rural projects. Standard excavators are available in sizes from 8 to 20+ tons. These are fully controllable and excavate easily, providing good visibility through the cabin. Crawler excavators are excavation machines that have tracks designed for off-road or uneven terrain. Their stability and locomotion make them suitable for various outdoor projects. Floating excavators are mounted on pontoon-like barges or boats designed for operation on water bodies such as rivers, lakes, or coastal waters.
Functionality
Based on their working function, excavators can be further categorized into trenching excavators, which are mainly designed for digging trenches and drainage; mining or earth-moving excavators are larger and more powerful and are specifically designed for extracting ore from mines and loading excavated material into trucks or conveyors; dredging excavators, which are used for dredging operations to remove silt, mud, or sand from the bottom of water bodies to maintain waterways, ports, or waterfront facilities; and demolition excavators, which are equipped with specialized attachments, are used for demolishing structures and clearing debris.
The excavators mentioned above are also divided based on their hydraulic systems. Basic hydraulic excavators transmit power through hydraulic motors and cylinders, while axial-piston hydraulic excavators utilize an axial-piston pump in their hydraulic system, making them more efficient in terms of energy transmission.
The specifications of an excavator refer to the various physical and functional features of the excavator that help to define its capabilities.
The excavator engine is usually measured by horsepower. A bigger horsepower usually means more power for digging and moving materials.
This refers to the fluid capacity of the excavator, generally measured in gallons. The hydraulic system generates the power used for digging and lifting through the fluid.
This is the overall weight of the excavator, including the maximum weight that it can safely handle. Operating weight is a crucial factor to determine the excavator's stability and load capacity.
Manufacturers normally indicate the maximum depth at which the excavator can dig or its digging reach. The parameter denotes how deep the excavator can work, especially in land preparation and mining. It is vital for terrain leveling, foundation digging, and pond excavation.
The size of the excavation bucket is an important specification that determines the volume of material that the bucket can. Excavator buckets typically come in different sizes and shapes to suit different tasks.
Regular servicing of the excavator is the key to maintaining its longevity. Here are some excavator servicing and maintenance tips:
On a daily basis, the operator should inspect the excavator before use. This helps to identify any potential issues the machine may have and rectify them early enough to avoid further damage or risks while using the excavator.
Lubricate the excavator regularly in order to reduce wear and tear. This prolongs the lifespan of the machine components. Follow the lubrication schedule provided in the excavator manual, and ensure that the right lubricants are used for different parts of the excavator.
Implement a scheduled maintenance program based on manufacturer recommendations. Ensure to replace worn-out parts and make necessary adjustments to maintain the excavator's performance and prevent breakdowns.
Cleaning the excavator regularly helps to prevent dirt and grime buildup that can cause damage to the paint and components. Pay special attention to the tracks, buckets, and radiators, which are more likely to get dirt, mud, and debris stuck in them.
Often check the hydraulic oil, engine oil, coolant, and fuel levels, and top up when necessary in order to keep the excavator running smoothly and avoid damaging its components due to low fluid levels.
The versatile Kobelco excavator can be used in various industries and applications including construction, mining, and agriculture.
Construction
A small Kobelco excavator (usually weighing between 1-6 tons) is used for site preparation. It digs holes, trenches, and foundations; backfills; and does general landscaping. It also aids in the drainage of construction sites. Its mini versions are usually used in small spaces or for landscaping projects, as they can maneuver in tight spaces.
Demolition
An excavator can be fitted with special attachments such as a hydraulic hammer, shear, or crusher, which makes the excavator more suitable for demolition.
Larger Kobelco excavators are usually used to demolish big concrete structures and buildings. The same excavators are also used to clear off the debris after the demolition.
Mining
A mining excavator is used for the open-pit mining of minerals and coal. It also helps in loading the mined materials into the dump truck or feeder. Special-purpose excavators with large buckets are used to extract materials from the riverbeds.
Material handling
An excavator is used to transfer and stack bulk materials like coal, coke, and ore from the stockyard into the feeder or conveyor belt. It also collects materials from the mine pit and transfers them to the transport vehicle.
Earth moving and land clearing
Excavators are used in large-scale earth-moving projects, such as extracting ore from a large mine pit. They are also used to clear out the land after the ore has been mined. Kobelco excavators are used to dig ores and load them onto dump trucks or conveyors.
Road construction and rehabilitation
An excavator is used to excavate the roadbed and make backfill. It also does drainage trench excavation and foundation excavation work for road engineering. An excavator helps to fill the foundation with material and level it with the help of its bucket.
Agriculture
A farm excavator is used to build irrigation canals, drainage systems, and embankments. It is also used to clear out stumps after land cultivation. In addition to that, the excavator also digs trenches for pipelines and performs land leveling.
Special tasks
According to requirements, an excavator can be fitted with other attachments to serve special purposes, such as a drilling rig for drilling, a grappler for collecting and a crusher for making solid waste into aggregates.
Business buyers can use the following tips to choose excavators.
Focus on Excavator Specs
Buyers should carefully consider the excavator specification that matches the construction projects before thinking of the Kobelco excavator prices. They should pay attention to the excavator's digging capacity, engine power, operating weight, and dimensions. If the project involves large-scale earthmoving tasks, then a large excavator will be needed, which comes with higher Kobelco prices. For smaller projects, a compact or midsize excavator will be ideal with lower prices.
Consider Age and Condition
Aside from the excavator specs, buyers will have to consider the age and condition of the excavator. Newly excavators generally come with advanced features and higher performance. But they also come with higher prices. If a buyer needs an affordable excavator and doesn't mind the features, they can settle for a used excavator with one or two years of usage on it. A well-maintained excavator also comes at a lower price, so buyers will have to balance cost with the excavator's age and condition.
Hours of Operation
When buying an excavator, either new or used, the operational hours are very important. Operational hours indicate the level of usage and potential wear of the excavator. Low operational hours show slight usage and could imply a newer model and higher prices. On the other hand, high operational hours indicate a well-used machine that may require more maintenance and repairs.
Negotiate for Bulk Orders
If purchasing excavators in large quantities, buyers should use their negotiating prowess for better deals. Try to negotiate for discounts or favorable prices. When negotiating, use factors such as bulk orders, market prices, and the conditions of the excavators being purchased to get the best deal possible.
Q1: What is the function of an excavator?
A1: An excavator is a large digging machine for moving earth. It can also do other tasks by changing attachments, such as loading, digging, cutting, and crushing.
Q2: What are the main components of a tracked excavator?
A2: A tracked excavator comprises a house, track frame, boom, arm, bucket, and pull-string motor. The house features an operator's cabin and the motor and controls the moving pieces, like the track frames and the digging booms.
Q3: How do excavators work?
A3: An excavator moves earth by rotating its house on a tracked base. The boom moves the bucket or arm forward and backward. The bucket digs or loads the material and moves it to the arm, which pulls the material and extends it to dump at another location.
