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Kelly Bar Spring is a precision-engineered elastic component used in rotary drilling rigs to absorb impact and reduce vibration during drilling operations. It plays a vital role in protecting the Kelly bar sections and rotary drive system, ensuring smooth, safe, and efficient pile construction.
Deep Soil Mixing (DSM) rigs use rotating shafts with cutting tools to blend soil with binders, creating stronger ground.
KR220C is equipped with a powerful US Cummins engine and a newly upgraded Caterpillar chassis, and has passed both GB certification and EU EN 16228 standard certification. It features a power head with multi-stage vibration reduction design for superior shock absorption, strong rotary braking performance, and a new-generation electronic control platform, delivering outstanding performance and stability for construction operations.