Rongli Intelligent Manufacturing was established in 2012 with a registered capital of 60 million yuan. Our headquarters are located in the beautiful and historically rich city of Qingzhou, Shandong Province, enjoying a superior geographical location and convenient transportation (sitting at the intersection of Qingyin and Changshen expressways) and just 2.8 kilometers away from the Jiaojing passenger high-speed rail line.

Our company currently owns over 70 sets of large-scale processing equipment, offering processing services and casting for various equipment, primarily including: oil equipment research and manufacturing, automotive auxiliary equipment, mobile transformer stations, high and low voltage electrical control cabinets, ship fittings, high-speed rail facilities, metallurgical equipment manufacturing, mining equipment, wind power equipment, coal chemical industry and its environmental protection equipment processing, as well as equipment for the new energy industry. In 2009, our oil drilling rigs and related products were awarded the "Reputable Brand with High-Quality Oil Drilling Rig Products and Satisfied Services" in China, in 2010, it was named a "Famous Trademark of Shandong Province," and in 2010, we were recognized as a "High-Tech Enterprise of Shandong Province." In 2013, we were awarded the "Famous Trademark of China." Our company is one of the few in Shandong Province capable of independently producing all eight systems of drilling rigs, and our oil drilling rigs are of internationally advanced level. Currently, our products are widely used in oil land drilling platforms, offshore drilling platforms, coal chemical industry, metallurgy, mining, and green energy industries.

Our company is certified with ISO9001:2008, HSE, CE EU certification, and the right to use the logo, as well as API certification. Our products and main components are produced in strict accordance with the ISO 14693 international standard and API Spec 7K, API Spec 4F standards. We are a member of the Sinopec supplier network and have been awarded multiple honors, including "Shandong Province Credit Unit."

Our company specializes in the production of petroleum machinery, offering a range of products including drilling rigs (such as skid-mounted rigs and trailer-mounted rigs), drilling control systems, mud pump single pumps and pump units, electric diaphragm pumps, three-cylinder single-acting drilling pumps (RL3NB series mud pumps and RLF series mud pumps), and accessories for drilling mud pumps. We also customize and machine various workpieces according to customer specifications.

Our company boasts a scientific management system, robust technical capabilities, comprehensive quality inspection methods, and top-notch large and medium-sized equipment. We always adhere to the principle of "Surviving through quality, developing through technology," with customer satisfaction as our perpetual pursuit.

Our company has established a solid foundation for cooperation with a wide range of clients through superior products, reasonable prices, and attentive service. Currently, our products have been serving over a dozen oil fields and geological departments across the country, and are also exported to countries and regions such as the United States, Canada, Russia, Brazil, Romania, Kazakhstan, East Asia, and Southeast Asia.

RL3NB-350 Three-Cylinder Single-Action Reciprocating Pump. Its design features include optimized parameters, increased stroke length, and reduced strokes to improve pump suction performance and extend the lifespan of wearing parts. This pump is widely used in oil fields and other industrial and mining enterprises for operations such as drilling and well rehabilitation. It is suitable for long-distance transfer of liquid media and for operations like injecting polymer substances into the reservoir to meet the requirements of the third oil recovery process. Mainly compatible with 15 drilling rigs.

This series of pumps are produced strictly in accordance with the SY5138 standard of the Ministry of Petroleum Industry and undergo factory tests in compliance with the standard.