Qingdao Elite Intelligent Equipment Co., Ltd.

Retractable crawler undercarriages, also known as extendable or variable undercarriages, are hydraulically retractable (or can be widened) track systems that provide greater stability and maneuverability. These undercarriages are particularly useful for machines that need to operate in confined spaces or require a wider base for stability on uneven terrain. Features: Adjustable Width: The main advantage is the ability to adjust the track width, allowing the machine to navigate narrow passages, and then widen it for enhanced stability. Improved Stability: A wider track base provides better stability, especially on slopes or uneven ground. Space Optimization: Retractable tracks allow for a smaller transport width, reducing transportation costs and allowing access to tighter spaces. Hydraulic Operation: The extension and retraction of the tracks are typically controlled by hydraulic cylinders. Customization: We can provide customization services based on your specific requirements. Versatile Applications: They are commonly used on a variety of construction and specialty machinery, including excavators, cranes, drills, and even spider lifts.