The outer hull of this liner is a high strength forging 45# steel, and the inner sleeve is high chrome iron by centrifugally cast for a deeper hardness. Bore hardness is 59-65 Rockwell. The sleeve is then inserted into the hull at a tightness that exceeds its counterparts. The liner is rated to match the pressure up to 5,000 PSI and above and the extreme long service life to be around 1000h.

Zirconia-ceramic liner is produced from a unique Zirconium-based ceramic compound that is extremely pure and stabilized, so that it avoids Alumina-ceramic liners's brittle, and exhibits better polished, impact strenght, long lasting, tough, crack resistant than Alumina-ceramic liner.
With these property advantages, the liners' sevice life will be greatly extended,and an indirect effect will reduce the friction between the liner and pistons, which in trun extends piston life and reduces pump-cooling requirements, and good performance on the high temperature application. Finally, it will save a huge cost for the drilling work.

Gaskets and packings are two kinds of being made of high-quality synthetic rubber and polyurethane, both offers excellence performance in required application.


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Recently, the company's business team went abroad to visit customers and explore the markets of Russia, Kazakhstan and Turkey.

Recently, the general manager of the company led the company's business team to visit customers abroad and explore the markets of Russia, Kazakhstan and Turkey. During the visit, we showed our main products, mud pump accessories, hydraulic end cylinder liner pistons and other core products. At the same time, our company also provided customers with complete sets of equipment and accessories solutions in the field of drilling engineering. Through this visit, our company has consolidated the existing cooperative relationship and discovered a large number of potential customers, laying the foundation for market development. Many of these customer groups are leading companies in the oil industry and frequent buyers of Chinese products. Through negotiations, they learned that Chinese products are in great demand and the domestic and foreign oil industries are booming. Xinhuafa Petroleum took advantage of its own factory manufacturing advantages to gain insight into the current domestic and foreign oil industry market conditions, and demonstrated China's leading oil accessories technology and capabilities to target customers of oil drilling and production equipment through on-site visits and demonstrations. In the communication, the business personnel's explanations with pictures and texts and the direct communication with customers have given a greater impetus to the company's continuous development of new markets. After the visit, we will take advantage of the competitive price and stable quality to take the initiative and gain an advantage in the fierce market competition, and become the customer's preferred supplier.