Chassis Parts
STONE: Chassis Parts Manufacturer in China
STONE(Shanghai) Engineering Machinery Co.,Ltd is a maintenance base for construction machinery parts, specializing in providing maintenance services and parts for mining enterprise equipment. Our team was established in 2004 and is headquartered in Shanghai, China. It has a registered capital of 15 million yuan and has a completely independent brand STONE. We specialize in the production and supply of spare parts for Bulldozers, Excavators, and Wheel Loaders. Our detailed catalog offers a complete selection of OEM parts including Track Chain, Track Rollers, Sprocket, Excavator Buckets, Blades, Excavator Cylinders, Swing Circles and more. Also offers a wide range of electrical and hydraulic parts.
Exquisite production technology
Processed with high-quality raw materials the wear resistance is higher. Automated production perfectly guarantees product quality.
Powerful warehousing and logistics
It has a large warehouse of 3,000 square meters to ensure the delivery time of accessories. Customizable delivery services to speed up logistics delivery.
Professional business capabilities
A complete data system ensures product accuracy. The professional maintenance team will respond online within 24 hours and solve construction site problems within 48 hours.
Service capabilities
The industry knowledge and professional capabilities of the STONE team are the first priority in serving customers!
What is Chassis Parts?
The chassis parts of construction machinery are the core running device assembly of crawler construction machinery, which is composed of "four wheels and one belt" (rollers, idlers, track rollers, carrier rollers + tracks) as the main body, and undertakes the key functions of the whole machine such as weight transmission, power transmission, and walking support. In crawler construction machinery, the chassis system accounts for about 30%-40% of the total weight, and its performance directly determines the passability, stability and operation efficiency of the equipment.The design and manufacturing level of the chassis system directly reflects the overall performance of the equipment. Proper use and maintenance of the chassis assembly can effectively extend the service life of the equipment by more than 30%.
What are advantages of Chassis Parts?
Compatibility
Our chassis parts are designed and built for original Caterpillar equipment. They are manufactured with the same materials and specifications as the original parts, ensuring optimal performance and compatibility.
Quality and Reliability
STONE Chassis Parts are as good as the original equipment manufacturers in performance and quality. They undergo rigorous testing and quality inspection to ensure durability and reliability, thereby reducing failures and extending the life of your equipment.
Warranty and Support
In addition to offering the same warranty as original equipment parts, we also provide comprehensive customer support, including technical assistance, to help resolve any issues that may arise.
Safety
Our parts are manufactured with the utmost attention to safety standards, and all parts operate within the safe parameters of your equipment, reducing the risk of accidents or injuries.
Performance
Using our Caterpillar parts helps maintain your equipment's original performance specifications, ensuring it operates efficiently.
Cost Savings
Our chassis parts are high quality and reasonably priced, saving you money on both maintenance and potential repair costs.
What are the main types of chassis parts?
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1. Sprocket
The power of the engine is transmitted to the drive wheel through the transmission system, and the drive wheel then engages with the inner side of the track, pushing the track forward or backward, thereby driving the mechanical equipment to move.
2. sprocket sement
It is the driving wheel of the crawler system and is driven by a hydraulic motor. The sprocket sement on the sprocket engages with the crawler chain link to drive the crawler to rotate and enable the excavator to move. The structure and material of the drive wheel need to have high strength and wear resistance to withstand large torque and friction.
3. Track Shoes
Track shoes are parts that directly contact the ground and are usually made of high-strength, wear-resistant materials. Their shape and pattern design affect the grip, and their width affects the ground pressure, which in turn affects the stability and mobility of the excavator on different ground surfaces.
4. Track link
Track link is the skeleton of crawler track. Multiple links are connected by pins and bushings to form a closed chain. Its strength and toughness are crucial to the load-bearing capacity and durability of the crawler track assembly. It carries the track shoes and transmits motion and power.
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5. Track Idler
Track Idler is installed at the front or rear end of the track system to guide the movement direction of the track, ensure that the track runs along the correct path, and prevent the track from derailing. It is usually composed of wheel body, bearing, sealing device, etc.
6. Track recoil spring
Track recoil spring is used to adjust the tightness of the track to ensure that there is appropriate contact pressure between the track and the drive wheel, guide wheel and other wheel bodies. Common methods include tensioning cylinders and tensioning springs to prevent the track from being too loose to cause derailment or too tight to increase wear.
7. Carrier Roller
Carrier roller is used to support and guide the crawler to prevent the crawler from sagging or lateral deviation during movement. It is usually installed on the upper part or side of the crawler system. Its structure is similar to that of the supporting wheel and plays an important role in the normal operation and wear reduction of the crawler.
8. Track Roller
The track roller is installed under the track chassis to support the weight of the track and maintain a certain contact pressure between the track and the ground, so as to ensure the stability and walking performance of the excavator. It is generally composed of a wheel body, a shaft, a bearing, a sealing ring, etc.
Compare with other products
| Double Flange Rollers | structure | performance |
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The weight of the machine is evenly distributed on the two wheels by supporting on both sides. The structure is relatively complex and requires a transmission device to be used in conjunction with the drive system. It is usually made of cast steel and has good wear resistance. | It can improve the stability of the machine on uneven ground, reduce the risk of rollover, make the tire wear more evenly and extend the service life. It can also adjust the support force by adjusting the air pressure to further improve the stability and adaptability of the machine. |
| Single Flange Rollers | structure | performance |
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It is usually connected to the frame of the machine by a straight rod, with only one side supporting the weight of the machine. It has a relatively simple structure and is easy to install. It has a long axle and can withstand greater gravity and inertia. It takes up little space and is suitable for operation in limited spaces. | Since only one side supports the weight, the stability of the machine is relatively poor, especially on slopes and soft ground, where it is easy to overturn, and the track wear is uneven. |
What are the main materials of chassis parts?
Alloy steel
40Mn2 ：The material of the track roller body has high strength and hardness, good wear resistance and toughness, and can withstand large impact loads. After forging, machining and heat treatment, the surface quenching hardness can reach HRC45-52.
High strength wear-resistant steel
Q1100E: High-quality high-strength structural steel plate with a yield strength of 1100MPa. It is often used to manufacture four-wheel and one-belt products such as track links, supporting wheels, pin bushings, and track shoes for crawler engineering machinery such as excavators. It has high strength and wear resistance.
Stainless steel
In some special working conditions with high requirements for corrosion resistance, such as coastal areas or chemical environments, some parts of the chassis will be made of stainless steel, such as 304 stainless steel or 316 stainless steel.
Copper Alloy
Copper alloy has excellent wear resistance and dust resistance under high load conditions. At the same time, the self-lubricating technology greatly extends the maintenance cycle of the bearing, making it suitable for bearings in chassis walking mechanisms and other parts.
Cast Steel
Sprocket is usually made of cast steel because of its good strength, toughness and wear resistance. It can withstand greater impact and friction to ensure the normal operation of the equipment.
Engineering Plastics
Such as polyamide PA6, PA66, etc., which have the characteristics of high mechanical strength, high rigidity and strong thermal stability, and can be used to manufacture some parts that require wear resistance and weight reduction, such as nylon sliders.
Application of caterpillar spare parts
Mining extraction: In mining operations, excavators, loaders, bulldozers, etc. need to operate in complex mining environments. Carter chassis parts ensure that the equipment can travel stably on the rugged mining terrain, withstand large loads and impact forces, and ensure the smooth progress of mining.
Construction work: At the construction site, loaders use Carter chassis to carry sand, stone, bricks and other construction materials and stack them at designated locations. The stable chassis enables operators to carry out material handling operations quickly and efficiently, improving the efficiency and quality of construction.
Agricultural farming: In different types of farmland, whether it is a flat plain area or a hilly area with a certain slope, the reasonable design of the track wheels and tracks enables the tractor to maintain good passability on soft soil without causing excessive compaction of the soil.
Water Conservancy Project: In the early preparation stage of water conservancy project construction, such as leveling the land and building dam foundations, bulldozers can use Caterpillar chassis to push large amounts of earth to designated locations. Their powerful dozer blades and stable chassis system enable them to perform efficient bulldozing operations on rugged terrain.
When using Caterpillar chassis parts, please pay attention to the following matters
CONTROLLING SPEED
Avoid high-speed driving and sharp turns of the equipment to prevent excessive wear of the sprockets, pin bushings and other parts of the crawler structure, or even cracks and breakages.
KEEPING THE LOAD BALANCED
It is not allowed for one side of the track to bear weight for a long time. The mechanical load must be balanced to avoid wear and damage to the load parts due to uneven force.
PARK YOUR MACHINE CORRECTLY
Mechanical equipment should be parked on flat ground and avoid parking on inclined roads to prevent deformation and damage of floating oil seals and oil leakage due to static thrust.
CLEANING FOREIGN MATTER
Check whether the chassis parts are abnormal before work every day. Clean the dirt, stones and other foreign objects on the chassis parts after work to prevent excessive wear and oil leakage of the chassis parts.
CHECK TRACK TENSION
Check the track tension before work every day to avoid excessive or loose track tension. Excessive track tension will cause early wear of the track links, gear rings and guide wheels.
LUBRICATE AND TIGHTEN
Lubricate the chassis parts in time to prevent the bearings of the supporting wheels from burning due to oil leakage; at the same time, check whether the bolts and nuts are loose, and tighten them in time to prevent them from being lost or broken, causing mechanical failure.
LUBRICATE AND TIGHTEN
Check the wear degree of chassis parts regularly and replace them when necessary. If cracks are found, timely maintenance and welding should be carried out to ensure the normal operation of the machine
Process of caterpillar spare parts
Design:Engineers use advanced design techniques to carefully craft each spare part. These designs are designed to balance performance, durability and ease of manufacturing to achieve the best results.
Material Selection: High-quality materials are selected based on the application and performance requirements of the part, including high-strength alloy steel, cast iron, aluminum alloy, plastic and elastomer.
Production Planning: The manufacturing team plans the production process and develops a production schedule to ensure timely delivery of parts to customers, including the use of specialized machinery and equipment.
Manufacturing: The manufacturing team uses a series of sophisticated processes, including casting, forging, machining, welding and assembly steps to achieve more efficient and accurate production. Through these processes, each part is carefully processed to the expected shape and size to ensure that it meets strict quality standards.
Quality Control: Throughout the manufacturing process, parts are checked for quality and meet Caterpillar standards. If defective parts are found, they will be repaired or scrapped.
Assembly: After the individual parts are manufactured, they are assembled into complete assemblies or sub-assemblies.
Final Testing: Assembled parts undergo final testing, including load testing, durability testing, and compatibility testing, to ensure they meet all performance specifications.
Packaging and Distribution: After the parts pass the final testing, they are packaged according to Caterpillar standards to protect them during transportation, and then the parts are distributed to customers in various locations.
FAQ
1. How to check track tension?
Lift the crawler track on the side to be inspected so that it is off the ground to a certain height, generally about 7-8cm. When the excavator boom and crawler track form a vertical angle, measure the gap between the supporting wheel and the crawler shoe. Taking Carter excavator as an example, the gap of rubber crawler track should be between 8.3-13.5mm, and the gap of steel crawler track should be between 14-25mm. If the gap is too large or too small, it means that the crawler tension does not meet the requirements.
2. How to adjust the track idler when it is misaligned?
Adjust the shims:
Loosen the guide plate fastening bolts, but be careful not to loosen them too much. Generally, do not loosen them more than 3 turns to prevent the guide plate from falling off and becoming difficult to install.
If the gap is large, remove the shim on the side with the larger gap and add it to the side with the smaller gap until the lateral gaps on both sides are adjusted to the same.
3. What is the typical service life of chassis parts?
The service life of a product is affected by many factors, such as the working environment, work intensity, equipment maintenance, etc. Under normal working conditions, if regular maintenance and care are carried out in accordance with the requirements of the equipment manufacturer, the service life can generally reach thousands of hours or even tens of thousands of hours. For example, in a good working environment and with proper maintenance, an excavator may be used for more than 5,000 hours before it needs to be replaced.
4. At what point must track shoes be replaced?
1.When the wear of the track shoe tooth block is lower than a certain proportion of the standard tooth height, such as the track shoe tooth high wear limit scale, it must be replaced.
2.If the track shoe shows obvious deformation such as bending or twisting, it will affect the coordination of other parts, causing the track to be unstable during operation, and may even cause faults such as derailment. At this time, the track shoe must be replaced.
3.When the grounding ribs and other parts of the track shoe are severely damaged and cannot function normally, affecting the grip and stability of the equipment, they must be replaced.
5. What problems does wear of track links cause? How can we prevent it?
The wear of the crawler chain links will cause the tightness of the crawler tracks to change, which may cause crawler track slippage, derailment and other faults, affecting the normal operation of the excavator, and even damaging other parts in serious cases. Preventive measures include regular inspection and lubrication of the crawler chain links, timely adjustment of the crawler track tension, and reasonable operation under harsh working conditions to avoid excessive wear.
6. Among chassis products, which component is most likely to fail?
Among chassis products, track shoes are one of the most prone to failure. Track shoes are in direct contact with the ground, subject to greater friction and impact, and are prone to wear, breakage, derailment and other problems.
7. What are the precautions for replacing the track roller?
When replacing track rollers, the entire track system needs to be inspected and maintained to ensure that other components function properly.
It is recommended to replace all track rollers on one side of the track to avoid mixing old and new track rollers on one side, otherwise the new track rollers will easily wear out.
We're professional chassis parts manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade chassis parts for sale here from our factory.
track shoe assembly, track guide wheels, Track Chain