Features and advantages of crawler tractors - Slope Tractor

Features and advantages of crawler tractors

China is a big agricultural country. In recent years, with the large-scale development of agriculture, the conservation tillage method has been widely accepted and the call for green agriculture has made agricultural machinery crawler tractors more and more favored by farmers. Many friends don't know much about wheeled tractors. Today, I will talk to you about the characteristics and advantages of crawler tractors.

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1. The grounding ratio is low to protect the soil

Use the crawler tow to avoid the formation of plough bottom in the dry land, to protect moisture and prevent drought; to prevent damage to the hard bottom in paddy fields, and to ensure normal cultivation of the paddy field; the specific pressure of the wheel tractor on the ground is three times that of the crawler tow. It is only 30%-40%, and the germination rate can still reach 80%-90% after the tread is compacted; the wheel tug rut in the paddy field even affects the transplanting and harvesting and even causes the mud feet to deepen and make it impossible to cultivate.

2. Large tractive force, obvious advantages in deep tumbling and load-bearing operations

The traction force of the crawler tractor of the same weight is 1.4-1.8 times that of the wheel tractor. In terms of traction efficiency, the traction efficiency of the wheel tractor is 55-65%, and the crawler tractor can reach 70-80%, which means that the tractor of the same horsepower, as the wheel tractor The effective power of the engine is 15% more lost than the drag.

3. High working efficiency

Tractors are used for farmland operations. The speed of rotary tillage is generally 5~6km/h, the speed of plowing is generally 7~9km/h, and the speed of harrowing is generally 10~12km/h. The plowing speed of the crawler tractor is equivalent to that of the wheel tractor. Whether it is plowing, harrowing, sowing, or other farmland operations, the crawler tractor is not slower than the wheel tractor, and the traction advantage is obvious.

crawler tractor

4. Excellent passability and climbing ability

Due to their low center of gravity and significant adhesion coefficient, crawler tractors have good slope stability against overturning and sliding, and also have the characteristics of small turning radius maneuverability, strong climbing ability, and off-road performance. Farmland and terrace operations have better adaptability than wheel towing, especially when equipped with rubber tracks, it is an all-terrain operation machine.

5. Operation comfort

At present, crawler tractors have generally adopted hydraulic power steering, fully enclosed shock-absorbing cabs, optional air conditioners, and heaters, digital instruments, etc., which have greatly improved the noise at the ear and driving comfort. With the application of new technologies such as differential steering, single handle, or steering wheel steering control, its handling comfort will become better and better, and it is no longer inferior to wheeled tractors.

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6. Utilization and maintenance convenience

In addition to fieldwork, crawler tractors can also play a role in farmland infrastructure and small water conservancy projects. If the blade is installed,

It can be used as a bulldozer in agricultural earthwork operations such as ditching, cleaning fish ponds, and changing slopes to ladders, and the comprehensive utilization rate is higher than that of wheeled tractors. Moreover, the whole frame structure of the crawler tractor, compared with the frameless structure of the wheel tractor, does not need to be broken down and disassembled like the wheel tractor during maintenance, which greatly facilitates the user's daily maintenance and maintenance of the whole machine.

Advantages of tracked tractors

Crawler tractor is widely used in agriculture and the market demand is also great. Crawler tractor has the advantages of small pressure per unit area of soil and good adhesion to soil (not easy to slip), in the soil wet and soft zone has better performance, high traction efficiency. As agricultural machinery giant, the tracked tractors produced by YTO have been favored and concerned by market customers.

Advantages of small crawler tractors and their travel principle

Advantages of small crawler tractors and their travel principle

The small crawler tractor is a type of tractor, and its traveling device is composed of a guide wheel, a follower wheel, a roller, a drive wheel and a crawler. During operation, the drive wheel winds up the track and the roller moves forward or backward on the track of the track. The small crawler tractor has the advantages of low pressure per unit area of the soil and good adhesion to the soil, and has good passage performance in the soil moist and soft, and the traction efficiency is also high.

Unlike a wheeled tractor, a small crawler tractor is supported on the ground by a wound endless track. The track contacts the ground, the shank is inserted into the soil, and the driver is not grounded. The drive wheel continuously rolls the track from the rear by the engagement between the gear teeth on the drive wheel and the track pin on the drive wheel.

During the running of the small crawler tractor, the grounding part of the track gives the ground a backward force, and the corresponding reaction force of the crawler is required accordingly. This reaction is the driving force for driving the small crawler tractor forward. It can be seen that the small crawler tractor is realized by the interaction between the crawler belt and the ground by the driving torque through the driving wheel, and the driving force is greater than the sum of the rolling resistance and the traction resistance. 

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Category: Excavators | 08 June

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. In fact, as per Off-Highway Research India, crawler excavators are expected to account for nearly 31 percent of the construction equipment market share by . Thus, crawler excavators have a bright future ahead.

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...

1. 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.
2. 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.
3. 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
4. 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.
5. 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

Apart from the above, there are various other factors that also come into play and should be considered before buying crawler excavator. One amongst them is innovative equipment with smart technologies. As the market is expanding with new models, equipment loaded with electronic intelligence, GPS system, and telematics are gaining prominence. Also, innovations are seen of the front of improving the communication between the engine and hydraulics for greater workgroup efficiencies and fuel economy. Hence, as a contractor or construction company owner, you need to take into account this factor also before buying the crawler excavator whether the equipment you are buying has all the intelligent and smart features on it or not. Further, crawler equipment cost is also an important factor to be considered as you might have a budget and want equipment to fit in that budget. Thus, there are various factors that need to be considered while selecting a crawler excavator.

If you are looking to buy efficient crawler excavators that are highly stable, versatile with various attachments, require minimum maintenance and give excellent results, then Sany Group's excavators should surely be on your mind. They are highly fuel-efficient, reliable, durable, require less maintenance, have long life and offer excellent performance and unmatched productivity to maximise your gains. They come loaded with Dynamic Optimization Matching Control System (DOMCS) which realises a match between the engine and external load demand for better fuel efficiency. Sany offers a range of excavators ranging from small, medium to large excavators. Sany's crawler excavators can prove to be your best choice as they fair well on all the pointers as mentioned above.