Chain Link Types in Rotary Drilling Rig Undercarriage Systems
In the undercarriage system of drilling rigs, the crawler chain plays a vital role in transferring power and supporting the machine’s movement under heavy loads. Understanding the types of chain links used in different applications helps ensure optimal performance and longer service life.
There are two main categories of link assy (chain assemblies) used in foundation drilling equipment:
1. Sealed and Lubricated Crawler Chain
This type of chain link features built-in lubrication between the pin and bushing, protected by rubber seals. It significantly reduces friction and wear, providing longer lifespan and better reliability. Sealed link assy is widely used in rotary drilling rigs, crawler cranes, and other heavy-duty machinery working in tough jobsite conditions.
2. Dry Chain Link (Non-sealed Type)
Dry chains have no internal grease or sealing. These crawler chain types are more economical and easier to maintain but have a shorter service life due to higher wear. They are usually found in light-duty equipment or in temporary project use.
Yantai Orient supplies a full range of crawler chain assemblies, track shoes, bottom rollers, carrier rollers, idlers, and sprockets for rotary drilling rigs. Our products are compatible with major brands such as Bauer, MAIT, Soilmec,IMT and Sennebogen.
With OEM-level quality and strong inventory, we support global delivery and customization for your undercarriage requirements.
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As a professional supplier of undercarriage components, we specialize in track systems and related parts, including drive wheels, idlers, carrier rollers, track rollers, and track shoes, widely used in rotary drilling rigs, piling machines, excavators, and various construction equipment. For years, we have focused on product quality, using premium raw materials, advanced heat treatment processes, and strict quality control to ensure reliable performance even under the most demanding working conditions.
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