Here are some comparisons of common brand excavator undercarriage:
Caterpillar
Structural design: The undercarriage structure of Caterpillar excavators is sturdy and durable, capable of withstanding large workloads. It is made of high-strength steel, which has good torsional and bending resistance, and can maintain stable structural performance even under harsh working conditions.
Walking device: equipped with large-sized supporting wheels, sprocket wheels, and guide wheels, these components have reliable quality and long service life. The tracks are made of high-quality rubber or steel, with good wear resistance and grip, and can adapt to various terrain conditions. For example, the Caterpillar 324 crawler excavator has a stable walking system and can operate in various complex environments.
Stability: The lower center of gravity design of the undercarriage provides better stability for the excavator during operation, making it less prone to safety accidents such as rollover. This feature enables Caterpillar excavators to control their movements more accurately during excavation, lifting, and other operations, improving work efficiency and quality.
Komatsu
Manufacturing process: The manufacturing process of Komatsu excavator undercarriage is exquisite, with high precision in component processing and good assembly quality. This makes the overall performance of the undercarriage more stable and reliable, reducing the probability of faults occurring. For example, the Komatsu 700 crawler excavator has superior undercarriage performance, greatly improving reliability and durability.
The coordination between hydraulic system and undercarriage: Komatsu's hydraulic system has a high degree of matching with the undercarriage, enabling precise operation and control. The hydraulic system can automatically adjust the walking speed and steering angle of the undercarriage according to different workloads and action requirements, improving the efficiency and flexibility of the excavator. Its advanced hydraulic technology enables excavators to complete high-precision operations even in small spaces.
Durability: The key components of the undercarriage undergo special treatment, such as quenching, tempering, and other heat treatment processes, which improve the hardness and toughness of the components and extend their service life. At the same time, Komatsu also uses high-quality seals and lubrication systems to reduce wear and leakage between components, further improving the durability of the undercarriage.
Volvo
Comfort and maintainability: The undercarriage design of Volvo excavators focuses on the comfort of operators and the convenience of maintenance. It is equipped with a comfortable cab and a good suspension system, reducing operator fatigue during work. At the same time, the lubrication points of the undercarriage are concentrated, making daily maintenance more convenient and efficient, which can effectively reduce maintenance costs and downtime.
Environmental performance: In the design of the undercarriage, Volvo also fully considers environmental factors. It adopts low-noise, low emission engines and advanced exhaust treatment technology to reduce environmental pollution. In addition, the undercarriage of Volvo excavators is made of recyclable materials, which meets environmental requirements.
Intelligence: The undercarriage of Volvo excavators has certain intelligent functions, such as automatic diagnosis system, remote monitoring system, etc. These systems can monitor the operating status of the undercarriage in real time, detect potential faults in a timely manner, and provide relevant information feedback to operators or maintenance personnel, improving the reliability and manageability of the equipment.
Hitachi
Stability and Balance: The undercarriage of Hitachi excavators is renowned for its excellent stability and balance. It adopts a unique undercarriage structure and suspension system, which can effectively reduce the shaking and vibration of the body, and improve the accuracy and efficiency of excavation operations. For example, the Hitachi 870 crawler excavator adopts a stable undercarriage structure and optimized balance system to ensure excellent stability even in complex working environments.
Excavation force and work efficiency: The strong load-bearing capacity of the undercarriage and excellent power transmission system enable Hitachi excavators to exert greater excavation force and improve work efficiency. The large displacement engine and high-performance hydraulic system equipped with it can provide sufficient power support for excavation operations and meet various work needs.
Comfort: The cab of Hitachi excavator is spacious and comfortable, equipped with high-quality seats and advanced air conditioning system, providing a good working environment for operators. At the same time, the driver's cabin has a wide field of view, and the layout of the operating handle and dashboard is reasonable, making it convenient for the operator to operate and monitor.
Zoomlion Heavy Industry Science and Technology Co., Ltd
Cost effectiveness: The undercarriage of Zoomlion excavator has a high cost performance ratio while ensuring performance. It adopts domestically produced components and advanced manufacturing processes, reducing production costs and making product prices more affordable. For example, the Zoomlion 150 crawler excavator has a high cost-effectiveness in the market due to its reasonable price and excellent performance.
Technological innovation: Zoomlion has continuously innovated in undercarriage technology and launched a series of new technologies and products with independent intellectual property rights. For example, its extended track design can significantly reduce ground pressure and improve overall stability; The regeneration function of the boom and stick can effectively improve work efficiency and reduce fuel consumption.
Adaptability: The undercarriage of Zoomlion excavators can adapt to various working conditions and environments. Its products cover multiple series such as small, medium, and large excavators, which can meet the needs of different users. Whether in urban construction, road construction, or mining, Zoomlion excavators can perform well.
Xugong
Overload capability
XCMG excavator undercarriage design focuses on heavy-duty working conditions. The key structural components such as the main beam of its undercarriage are made of thickened steel, which can withstand enormous pressure and impact forces. In heavy excavation operations such as mining, this undercarriage structure can ensure stable excavation and loading operations of the excavator, and will not easily cause problems such as undercarriage deformation. For example, the undercarriage of large excavators such as XCMG XE7000E can effectively carry the heavy loads brought by their large body and powerful excavation force.
Adapt to harsh environments
The undercarriage has excellent protective design, which can effectively resist harsh environmental factors such as dust and mud. When working in dusty environments such as deserts or construction sites, its sealing system can prevent dust from entering key components inside the undercarriage and reduce component wear. At the same time, in some high humidity environments, the anti rust measures of the undercarriage can also ensure its service life, such as using special coatings and anti rust treatment processes.
Innovation driven system
XCMG has many innovations in the drive system of the undercarriage. Some excavator undercarriage adopt advanced electro-hydraulic control walking system, which can accurately control walking speed and steering, improving the maneuverability and operational flexibility of excavators. This drive system can also automatically adjust power output according to different working conditions, optimizing energy utilization efficiency.
Sany
Intelligent undercarriage management
The undercarriage of Sany excavator is equipped with advanced intelligent monitoring system. Through sensor networks, real-time monitoring of parameters such as temperature, pressure, and wear of various components of the undercarriage can be achieved. For example, 24-hour uninterrupted monitoring of the operating status of key components such as hydraulic motors and reducers in the undercarriage. Once an abnormality occurs, the system will immediately issue an alarm and transmit relevant data to the remote monitoring center, facilitating timely maintenance by maintenance personnel.
Flexible configuration options
The undercarriage configuration has high flexibility. Users can choose different types of tracks (such as wide or narrow tracks) or tires (for wheeled excavators) according to their actual job needs. For users working on soft ground, a wide track configuration can be chosen to reduce ground pressure and improve the stability of the excavator; When working on relatively flat hard roads, narrow tracks or tire type undercarriage can provide better movement speed and maneuverability.
Reliability improvement measures
Sany has invested a lot of resources in the reliability of the undercarriage. Strictly control the selection of components, using high-quality support wheels, guide wheels, and other components. Moreover, these components have undergone reinforced design and durability testing to ensure their stable operation in long-term, high-intensity working environments. For example, the bearings of its supporting wheels adopt special sealing and lubrication designs, effectively extending their service life.
