Foundation Engineering Magazine and China Deep Foundation Engineering News On January 15, Beijing Yahe Tongshun Foundation Engineering Co., Ltd. organized an offline observation meeting and technical exchange meeting for the new generation rock-entry神器--YR550C-80M rotary drilling rig. More than 20 people attended, including Guo Chuanxin, Secretary-General of the Pile Machinery Branch of the China Construction Machinery Society, Zhao Xinyu, General Manager of Beijing Yahe Tongshun Foundation Engineering Co., Ltd., and heads of related enterprises and technical experts. The observation and exchange meeting mainly focused on the theme of more than ten innovative technologies adopted by the YR550C-80M rotary drilling rig. Through full exchange and discussion among industry leaders, experienced construction enterprise users, and relevant technical experts, the innovation and practicality of the YR550C-80M drilling rig independently developed by Beijing Yahe were fully affirmed, and the market prospect of this drilling rig was positively and optimistically evaluated.


During the exchange session, everyone discussed enthusiastically and sparked many “thought sparks”. On the basis of carefully observing Beijing Yahe's new product, they expressed many profound and valuable views on various aspects such as the demand for super-large rotary drilling rigs in the pile foundation construction market (demand side), the operation of pile foundation construction enterprises, and the ultra-large and ultra-deep hard rock drilling technology.


The large-diameter ultra-deep rock-entry drilling method is currently the most urgent demand in the field of pile foundation construction, and it is also the best stage for super-large rotary drilling rigs. The current construction pain point is the slow efficiency of rotary drilling rigs in rock drilling and the insufficient casing capacity in complex strata. The YR550C-80M rotary drilling rig independently developed by Yahe well meets market demand, and this product is also the crystallization of Beijing Yahe's years of rich construction experience in pile foundations.

The YR550C-80M adopts the following industry-original structures and technologies: 1. Two Cummins QSM11 engines, currently the most mature diesel electronically controlled injection engines specially used for construction machinery on the market, with excellent fuel economy and power system; 2. Adopts a dual trinity (water cooling, oil cooling, intercooling) heat dissipation system to save layout space on the upper part of the rotary drilling rig; 3. Original counterweight-type rear outrigger structure; 4. Dual main pumps and dual main valves parallel hydraulic system; 5. Four-wheel drive traveling system; 6. Full chain guard mechanism; 7. Dual winch lifting system; 8. Four mast cylinder support system; 9. Four-slide reinforced heavy-duty mast; 10. Four-motor drive power head system; 11. Three-drive upper rotation mechanism; 12. Dual-cylinder power head pressurization system; 13. Three-boom cylinder luffing system; 14. Rear outrigger intelligent follow-up system and many other new technologies.‍


Relying on years of rich construction experience, Beijing Yahe has made considerable development and progress in the remanufacturing of rotary drilling rigs in recent years. Through the remanufacturing of complete machines or parts of rotary drilling rigs, it has achieved the “nirvana and rebirth” of second-hand rotary drilling rigs. The use of new technologies makes the performance of remanufactured complete machines superior and more in line with users' construction needs, realizing the full life cycle of products, which is of great significance to the sustainable development of the rotary drilling industry.