Factory Price Underground Mixer Microtunneling Boring Pipe Jacking Machine. Advanced Crusher System: Equipped with cone crusher and cross arm to crush stones and mix with water for efficient slurry excavation. High Wear Resistance: Shell thickness >=25mm with 3-5mm tungsten carbide welding layer, hardness above HRC56 for durability. Robust PLC Control: Intelligent PLC with motor protection, 5-second delay stop, and 3-day deviation recording for safety. High Torque Drive: Main drive uses hydraulic motor with swing bearing design, offering high torque and reliability. Strict Quality Inspection: 100% visual and function inspection, ultrasonic flaw detection, and triple crack checks on main axle. Overseas Service Support: Provides overseas commissioning engineers, 12-month warranty, and 24/7 technical support via multiple channels. Flexible Customization: Supports full customization, minor customization, and customization from samples or designs.