What does the four excavator match mean?
In the field of engineering machinery, especially in excavator maintenance and maintenance, "four supporting facilities" is a high-frequency term. This article will combine popular topics and hot contents across the network for the past 10 days to analyze the definition, function, common questions and purchasing suggestions of the four supporting equipment of excavators for you in detail, and display relevant content through structured data.
1. Definition of four supporting facilities of excavator
The four-supply matching refers to the combination of four key components in the engine, including:Piston, piston ring, cylinder liner, piston pin. They are seals and transmission components at the core of the engine, which directly affects the power performance and life of the excavator.
| Part Name | Function | Common Materials |
|---|---|---|
| piston | Transmit combustion pressure and drive link movement | Aluminum alloy/cast iron |
| Piston ring | Sealed combustion chamber and controlled oil lubrication | alloy steel |
| Cylinder sleeve | Provide piston motion tracks | High phosphorus cast iron |
| Piston pin | Connect the piston to the connecting rod | Chrome steel |
2.4 Signs of damage to the supporting facilities
According to recent hot topics in the maintenance industry, the following are typical manifestations of four supporting faults:
1. The engine power has dropped significantly
2. Abnormal increase in oil consumption (blue smoke)
3. Inadequate cylinder pressure leads to difficulty in starting
4. Engine oil emulsification occurs in the coolant
3. Comparison of the price of four supporting brands
| brand | Applicable models | Market price (yuan) | Warranty period |
|---|---|---|---|
| Komatsu Original Factory | PC200-8 | 6800-7500 | 6 months |
| Caterpillar | CAT320D | 9200-11000 | 12 months |
| Domestic auxiliary factory | Universal | 2800-4500 | 3 months |
4. Purchase suggestions (industry hot topic discussion)
1.Original parts vs. secondary parts: In recent Douyin #excavator maintenance topics, 60% of repairers recommend that key models use original parts
2.Material selection: Zhihu hot post recommended that chrome-plated cylinder sleeves be preferred for high-temperature working conditions
3.Replacement cycle: Data from B station shows that domestic excavators need to be replaced with four supporting facilities on average 20,000 to 30,000 hours.
5. Maintenance tips
1. Check the oil level and quality daily
2. Change the oil filter every 500 hours
3. Avoid long-term overload operations
4. Use special engine oil that meets the label
6. New industry trends
Recently, Baidu index shows that the search volume of "Four Excavator Support" has increased by 23% month-on-month, and the main conjunctions include:
- Nanocoating four supporting facilities (new technology hotspot)
- Four remanufacturing supporting facilities (environmental protection trend)
- Intelligent monitoring system (preventive maintenance)
Summary: The four-suite excavator is the "heart component" of the engine, and its status directly determines the equipment attendance rate and economic benefits. It is recommended that users choose appropriate accessories based on actual working conditions and establish a scientific maintenance plan. If you need to know more about the specific model adaptation plan, you can consult a local regular dealer.
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