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HPR35A Mini rotary drilling rig offers low clearance and lightweight construction as its core advantages, making it ideal for confined working environments and complex site access requirements.
Engineered for foundation construction, the HPR38-20 is a compact, high-performance mini drilling rig built to excel in confined, low-clearance environments—from under bridges and power lines to indoor construction sites, with zero access barriers.
HPR45-16 mini rotary drilling rig has a maximum drilling depth of 16 metres, with a drilling diameter range of 300 to 1000 millimetres. The machine weighs 12,000 kilograms.
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.
Dumping Rubber is a heavy-duty rubber accessory designed to cushion, seal, and protect material discharge areas on construction and mining equipment. It improves efficiency, reduces wear, and prevents material spillage during dumping operations.
Positioned at the top of the drill string, the Kelly Bar primarily serves to transmit torque and bear the total weight of the drill string. It is a critical component for ensuring the stable operation and precise penetration of drilling equipment in numerous fields, including oil drilling, construction foundation boring, and mining. Its efficient torque transmission enables the drill bit to power through various soil and rock formations, guaranteeing the smooth progression of drilling operations.

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