Qingdao Kotai Heavy Industry Machinery Co., Ltd.
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Qingdao Kotai Heavy Industry Machinery Co., Ltd
It is a high-tech enterprise dedicated to the research, development and manufacturing of road construction machinery and high-end structural parts.
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What Is Crawler Excavator?
A crawler excavator, also known as a tracked excavator or crawling digger, is a vehicle that moves on crawler tracks instead of wheels. They are used for digging, grading, loading, and moving earth and large objects. Crawler excavators are often used at construction sites for: Digging trenches, holes, and foundations, Handling materials, Moving earth, Demolition, and Forestry work.
Better traction: Crawler Excavator have more surface area in contact with the ground, providing better traction. This makes them suitable for working on rough or muddy terrain.
Lower ground pressure: The weight of a Crawler Excavator is distributed over a larger area, resulting in lower ground pressure. This reduces the risk of sinking into soft ground.
Improved stability: Tracks provide better stability, especially on uneven surfaces or when lifting heavy loads.
Maneuverability: Crawler Excavator can rotate within their own footprint, making them suitable for working in confined spaces.
Crawler excavator typically consists of several key components, including:
Boom: The long, main arm that extends from the machine's body and supports other attachments.
Arm (Dipper): The section that connects the boom to the bucket or other attachments, allowing for controlled movement.
Bucket: The attachment at the end of the arm used for digging, lifting, and moving materials.
Cab: The operator's compartment, equipped with controls, instrumentation, and often air-conditioning for comfort.
Tracks (Crawler Undercarriage): The set of tracks or crawlers that provide stability, traction, and mobility to the excavator.
Hydraulic System: Powers the movement of the excavator's components, allowing for precise control and efficient operation.
Engine
The power source that drives the excavator's hydraulic system and other mechanical functions.
Counterweight
Located at the rear of the excavator to balance the weight of the front-mounted components.
Swing Gear
Allows the upper part of the excavator to rotate, enabling a wide range of movement.
With so many different types of excavators available on the market, you can look forward to getting the right type of equipment that you need to take your business into the future. However, it can also quickly become inundating when trying to find the best equipment for your company's needs. One of the best ways in which to ensure that you make a wise purchasing decision is to educate yourself on the many different options available.
Compact Excavators
The compact excavator is designed to perform the same functions as the standard excavator, but in far smaller spaces, or areas with obstacles. The typical compact excavator also has a lower machine weight than standard excavators, and this allows the unit to move more easily between jobsites.
Crawler Excavators
The crawler excavator is the most popular type of excavator found in construction sites across Africa. The main difference between crawler excavators and other units is the chassis. Rather than wheels, the crawler excavator has a track that is similar to that of a tank. This serves to increase its stability, efficiency and balance. This excavator brings the capability of performing a variety of construction functions, which include:
Some of the above functions can only be achieved when you have the correct attachment for your crawler excavator. Even though crawler excavators may be slower than wheeled excavators, they are more balanced and provide excellent stability during work operations. You will also be less likely to get stuck in muddy conditions, and instead be enjoying more stability while working on rougher and steep terrain.
Also called crawling diggers or tracked excavators, crawler excavators are tracked vehicles that are used to dig, grade, load or move earth and large objects. Crawler excavators represent the majority of available models and are considered to be one of the fastest-selling earthmoving equipment in the country at the present.
Crawler excavators are largely used at construction sites for works such as digging trenches, holes and foundations as well as for handling materials, moving earth, demolition, dredging, etc. So, if as a contractor or construction company owner, you are also planning to buy a crawler excavator, then below are five factors that you should definitely consider...
Ground conditions: Accessing ground conditions is extremely important while selecting the type of excavator needed at the jobsite. Generally, crawler excavators work very well when used for excavating, grading, and site development. For these applications, they can be fitted with various attachments. Some crawler excavators are even designed with reduced-tail-swing configurations which make them good for limited-space commercial or residential jobsites or new road and bridge construction projects. If the ground condition is loose or slurry, you should definitely select a long crawler excavator with a wider track shoe configuration for higher adaptability.
Machine stability: This is another important factor to be considered before selecting any heavy equipment like a crawler excavator. Generally, crawler excavators are the best for heavy-duty digging and lifting applications as they can maintain great contact with the ground due to their tracked undercarriage, thereby, creating a stable machine (as against the wheel excavators that depend on their tires, a dozer blade, and outriggers for their stability). In fact, the tracks of the crawler excavator offer excellent traction and a good mass distribution over their entire contact surface.
Transportation cost: Crawler excavators as against wheel excavators do not have wheels and hence, cannot be transported easily by road. So, if you need to move your crawler excavator between various jobsites, then you need to account for its transportation cost before only. In fact, for transportation, the crawler excavators need to be matched to appropriate-sized trailers. Thus, the transportation cost associated with a crawler excavator is high as compared to wheel excavators. However, in cases of usage of crawler excavator in mining or quarries, the equipment need not be moved as it will be needed at one location only for entire of its life. That said, typically crawler excavators are used when you don't have to move the equipment too much in uneven areas or on soft ground. Further, the travel speed of a crawler excavator does not exceed 6km/h, so they are used for applications where the excavator does not have to travel frequently over significant distances.
Attachment versatility: Before making the purchase decision, you should also consider the ability of the crawler excavator to be paired with a variety of attachments as this can help you to perform different tasks at the jobsite. Various common attachments for crawler excavator include hydraulic breaker for demolishing existing structures and concrete or asphalt, grapple for land clearing, clamshell for material unloading, quick coupler for faster work tool change over, a trenching bucket to dig foundation footings or excavate for underground utilities, or a plate compactor to finish trenches.
Maintenance requirement: As the crawler excavator's are designed for use in rough and uneven tough underfoot conditions, their undercarriage consists of many moving components and wear items that need to be maintained for the machine to function properly. Hence, you should consider the maintenance cost of crawler excavator before making the purchase decision.
What Is the Function of Excavator Crawler?
The excavator crawler plays a crucial role in moving materials and overburden, before the machine goes ahead to dig up the soil. The speed of the machine and its performance depend on how well it is maintained.
The excavator crawler is the moving part on an excavator that helps the machine move faster and dig deeper into the ground. It is also used to remove rocks, dirt, and other material from the excavation site. To ensure optimal performance and maintenance, it is important to adjust the crawler for the best performance.
An excavator crawler is the main component of the machine that helps it move through the soil or other material. It also helps the excavator to lift and transport material. Crawlers are usually adjustable to allow for varying ground conditions and are usually lubricated to help reduce friction.
Crawlers can become misaligned or damaged over time, requiring adjustment or replacement. Here is a guide on how to adjust a crawler on an excavator:
Excavators are essential heavy construction equipment used for various tasks, such as digging, lifting, and moving large quantities of earth and materials. Two popular types of excavators are crawler excavators and wheeled excavators. Each type has its own set of advantages and disadvantages, making them suitable for different applications and working conditions. In this article, we will explore the comparison between crawler excavators and wheeled excavators to understand their respective strengths and weaknesses.
Mobility
Crawler Excavator: Crawler excavators are equipped with tracks that allow them to navigate rough and uneven terrains easily. The tracks provide superior traction, making them highly suitable for working in muddy, sandy, or rocky environments. They can move efficiently on slopes and uneven ground, making them ideal for construction sites with challenging topography. The use of tracks, however, can slow down their movement on smooth surfaces, such as roads.
Wheeled Excavator: Wheeled excavators, as the name suggests, are mounted on wheels, offering higher travel speeds on paved surfaces like roads and highways. Their mobility is excellent on flat and stable terrains, making them more suitable for urban construction projects or jobs that require frequent relocation between sites. However, they may face limitations when working on rough or soft terrains due to reduced traction compared to crawler excavators.
Versatility
Crawler Excavator: Crawler excavators are known for their versatility and adaptability to various tasks. They come with a wide range of attachments, such as buckets, hydraulic breakers, grapples, and augers, making them capable of handling different construction and excavation jobs. Additionally, their stability and ability to rotate 360 degrees make them well-suited for precision work in confined spaces.
Wheeled Excavator: While wheeled excavators are also versatile, their attachment options might be slightly limited compared to crawler excavators. The wheels themselves restrict some attachments that require greater stability, but they can still perform various tasks, such as digging, loading, and lifting.
Ground Pressure
Crawler Excavator: Crawler excavators have a larger footprint due to their tracks, which helps distribute their weight over a larger area. This results in lower ground pressure, making them less likely to sink in soft or muddy ground. It allows them to work efficiently in adverse weather conditions without getting stuck.
Wheeled Excavator: Wheeled excavators have a higher ground pressure compared to crawler excavators because their weight is concentrated on the wheels, which means they are more likely to sink into soft ground or encounter difficulties in challenging terrains. However, they perform well on firm surfaces and urban areas.
Stability
Crawler Excavator: The tracks on crawler excavators provide excellent stability, allowing them to handle heavy loads and operate on uneven ground without tipping over easily. This stability is essential for safe operation in rugged or hilly environments.
Wheeled Excavator: Wheeled excavators may have slightly lower stability compared to crawler excavators, especially on rough or uneven terrains. However, modern wheeled excavators are designed with advanced stabilization systems to mitigate potential tipping risks.
Transportation
Crawler Excavator: Crawler excavators are not as easily transportable as wheeled excavators. They often require additional equipment, such as flatbed trailers or low loaders, to transport them between job sites. This transportation process can be time-consuming and add to the overall operational costs.
Wheeled Excavator: Wheeled excavators are more convenient to transport because they can move under their own power on standard roads. This eliminates the need for additional transportation equipment, reducing transportation costs and time.
Fuel Efficiency
Crawler Excavator: Crawler excavators tend to consume more fuel than wheeled excavators due to the friction generated by their tracks. In certain conditions, such as on smooth surfaces, they might be less fuel-efficient.
Wheeled Excavator: Wheeled excavators generally have better fuel efficiency compared to crawler excavators. Their ability to travel on roads with lower friction reduces fuel consumption during transportation between job sites.
Maintenance
Crawler Excavator: The undercarriage of diesel crawler excavators, which includes the tracks and related components, requires regular maintenance due to the wear and tear they experience during operation. This maintenance can be more involved and costly than that of wheeled excavators.
Wheeled Excavator: Wheeled excavators have a simpler design, and their maintenance is relatively straightforward compared to crawler excavators. However, the wheels and associated components may still require regular inspection and upkeep.
Conclusion
Both crawler excavators and wheeled excavators have their unique advantages and are suited for specific applications. Crawler excavators excel in rough terrains, offering superior stability and adaptability with a wide range of attachments. On the other hand, wheeled excavators are more mobile on flat surfaces, making them a preferred choice for urban projects and tasks that require frequent relocation. When selecting between the two types, it is crucial to consider the specific job requirements, terrain conditions, transportation needs, and fuel efficiency to make an informed decision. Whether it's a crawler excavator or a wheeled excavator, both machines play vital roles in the construction industry, contributing to the development of infrastructure and the built environment.
Since the establishment of the company, Kotai Heavy Industry has always adhered to the principle of people-oriented and customer demand-oriented. The rollers it produces are exported to more than 60 countries in the Middle East, Africa, America, Southeast Asia, Central Asia, etc., and have won the title of "China's Construction Machinery Industry Users" for many consecutive years. Annual TOP50 "Technological Innovation Gold Award, Golden Word of Mouth Award, Application Contribution Gold Award, Best Product Appearance Design Award" and "National Torch Plan Project Award", etc.
We're professional crawler excavator manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy high-grade crawler excavator for sale here from our factory.
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