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+86-17692703999
+86-17692703999 No. 6, West Side Auxiliary Road,
Sunshine Street, Linxi County, Xingtai
City, Hebei Province
Sunshine Street, Linxi County, Xingtai
City, Hebei Province
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7I6843
CAT
The 7I6843 is a Caterpillar Linkage Pin, also commonly referred to as a Bucket Link Pin or a Pin to Dipper.
Primary Applications:
- Used within the bucket linkage mechanism of crawler excavators.
- Facilitates the rotational movement between the bucket link, the dipper stick (or stick), and the associated hydraulic cylinder linkage.
- Enables precise bucket operations—such as digging, curling, and loading/unloading—ensuring smooth linkage operation and accurate bucket positioning.
- It serves as a critical rotational pivot component within the excavator's work tool assembly and is classified as a high-wear consumable part. After prolonged operation, it may develop excessive clearance, generate abnormal noise, or result in imprecise movements; therefore, periodic inspection and replacement are necessary to restore digging performance and stability.
Installation Location: Typically situated at the front end of the dipper stick, connecting the bucket link (also known as the closing link or dogbone link) to the dipper stick and the hydraulic cylinder; it is an integral component of the Bucket Control Group.
Applicable Models (Common Examples):
- Small to Medium Excavators: 311, 311B, 311C, 311D, 311F, 312, 312B, 312C, 312D, 313B, 313C, 313D, 314C, 315F series, etc.
- Others: Select 320C, 320D, 325C, 329D models, etc. (specific installation locations may vary slightly).
Product Features (Brief Summary):
Structural Design: Features a built-in lubrication port (lube port) and lubrication grooves to facilitate routine greasing maintenance and minimize dry friction.
Performance Advantages: Manufactured from high-strength steel, capable of withstanding the impact loads and repetitive rotational stresses inherent in excavation operations, thereby enabling the machine to maintain excellent operational precision across a wide range of earthmoving conditions.
