An excavator track frame, also known as the undercarriage frame, is a crucial component of an excavator's structure that supports and houses the track system. It provides the framework and support for the tracks, track chains, rollers, idlers, sprockets, and other undercarriage components.
The track frame is typically constructed of heavy-duty steel and is designed to withstand the stresses and loads encountered during excavation and other earthmoving operations. It serves as the main structure that connects the upper structure (including the operator's cab and the excavator's working components) to the lower undercarriage.
The track frame consists of two longitudinal beams or side frames that run parallel to each other and are connected by cross-members and reinforcement plates. The track chains are mounted onto the track frame, wrapping around the sprockets at the rear and the idlers at the front to provide traction and movement.
The track frame plays a critical role in providing stability, supporting the weight of the excavator, distributing loads, and absorbing the forces generated during operation. It needs to be robust and well-maintained to ensure the excavator's overall performance, durability, and safety.
Regular inspection and maintenance of the track frame and its associated components are essential to identify any signs of wear, damage, or misalignment. Proper lubrication, adjustment, and replacement of worn parts are necessary to maintain optimal track system performance and extend the lifespan of the excavator.
Types of excavator track frame
There are several types of excavator track frames used in different excavator models and designs. Here are some common types:
1. Box-Section Track Frame: This type of track frame features a rectangular box-section structure, with two longitudinal beams and cross-members to provide strength and rigidity. Box-section track frames are widely used in various sizes and configurations of excavators.
2. X-Frame Track Frame: X-frame track frames have a distinctive X-shaped structure, with diagonal bracing connecting the two longitudinal beams. This design provides additional stability and rigidity, especially in larger excavator models.
3. Sliding Frame Track Frame: Sliding frame track frames have a unique design that allows the track frame to slide sideways or extend outwards. This feature provides increased stability and lower ground pressure when working on uneven terrain or in sensitive environments.
4. Variable Gauge Track Frame: Variable gauge track frames allow the width of the track frame to be adjusted. This feature enables the excavator to adapt to different working conditions or narrow access areas by reducing or increasing the track width as needed.
5. Lattice Boom Track Frame: Lattice boom excavators, commonly used in heavy-duty applications such as mining or large-scale construction, feature a lattice boom track frame. This type of track frame incorporates a lattice structure in the boom, providing excellent strength and stability.
6. Modular Track Frame: Modular track frames consist of separate modules or segments that can be easily assembled or disassembled. This design allows for easy transportation, replacement, and maintenance of individual track frame sections.
7. Reinforced Track Frame: Reinforced track frames feature additional reinforcement in critical areas of the frame to enhance strength and durability. These frames are designed to withstand heavy loads, impact, and harsh operating conditions.
8. Hinged Track Frame: Hinged track frames have a pivot mechanism that allows the frame to pivot or oscillate independently from the upper structure. This design improves the excavator's stability on uneven terrain and enhances its maneuverability.
9. Wide Track Frame: Wide track frames are designed with increased track width compared to standard track frames. They provide improved stability, reduced ground pressure, and enhanced flotation, making them suitable for working in soft or swampy ground conditions.
10. Narrow Track Frame: Narrow track frames have a narrower width compared to standard track frames. They are designed for applications that require maneuverability in confined spaces or when working on narrow access sites.
11. Long Track Frame: Long track frames feature extended track length to provide better stability and increased lifting capacity. These frames are commonly used in long-reach excavator configurations or when working in deep excavation applications.
12. Bolt-On Track Frame: Bolt-on track frames consist of separate sections that can be bolted together, allowing for easy replacement of damaged or worn-out sections. This design reduces maintenance costs and downtime.
13. Enclosed Track Frame: Enclosed track frames feature covers or panels that enclose the track chain and undercarriage components. This design helps protect the track system from debris, reduces the risk of damage, and enhances overall durability.
14. Integrated Track Frame: Integrated track frames have the undercarriage components, such as track chains and rollers, integrated into the main structure of the excavator. This design provides better weight distribution and improved stability.
15. Suspended Track Frame: Suspended track frames incorporate a suspension system that allows the track frame to move independently from the upper structure. This design enhances operator comfort, reduces vibration, and improves overall machine stability.
16. High and Wide Track Frame: High and wide track frames are designed for applications that require increased ground clearance and stability. These frames feature taller and wider tracks, allowing the excavator to operate on rough terrain or in challenging environments.
17. Reinforced Box-Section Track Frame: This type of track frame combines the strength and rigidity of a box-section frame with additional reinforcement in critical areas. It provides enhanced durability and resistance to heavy-duty applications and demanding working conditions.
18. Offset Track Frame: Offset track frames are designed to offset the track system to one side of the excavator's main structure. This configuration allows the excavator to work alongside obstacles or against walls, maximizing reach and versatility.
19. Hybrid Track Frame: Hybrid track frames combine different track frame designs or materials to optimize performance and efficiency. For example, a hybrid track frame may feature a box-section design in the lower portion for strength and a lattice structure in the upper portion for weight reduction.
20. Telescopic Track Frame: Telescopic track frames can extend or retract, allowing for adjustable track width. This feature provides versatility in adapting to different working conditions, such as narrow access areas or wider stability requirements.
21. Articulated Track Frame: Articulated track frames have a joint or pivot point in the middle of the frame, allowing the excavator to articulate or bend. This design enhances maneuverability and allows the excavator to work in tight spaces or navigate obstacles more easily.
22. Integrated Suspension Track Frame: Integrated suspension track frames combine the track frame and suspension system into a single unit. This design improves operator comfort, reduces vibration and shock, and provides better machine stability.
Price ranges of excavator track frames
The price range of excavator track frames can vary significantly depending on several factors, including the excavator model, brand, track frame design, specifications, and market conditions.
For smaller excavators (mini excavators or compact excavators) with operating weights below 10 tons, the track frame price range can be roughly between $2,000 to $5,000 USD.
For medium-sized excavators with operating weights between 10 to 30 tons, the track frame price range can be approximately between $4,000 to $10,000 USD.
For larger excavators with operating weights above 30 tons, the track frame price range can be significantly higher, typically ranging from $10,000 to $30,000 USD or more, depending on the specific model and brand.
These price ranges are estimates and can vary based on factors such as the manufacturer, geographical location, track frame material, additional features, and any customization required.
It's important to reach out to excavator manufacturers, authorized dealers, or specialized suppliers to obtain accurate and up-to-date pricing information for the specific track frame you are interested in, as they can provide the most relevant and detailed pricing details based on your requirements and the current market conditions.
