kehua – KEHUA

Qingdao Kehua Petroleum Machinery Achieves Major Technical Breakthrough: New Bimetallic Liner Exceeds 1000-Hour Service Life with 65-70HRC Hardness

The company’s R&D team has successfully overcome key technical hurdles by reformulating…

Precision Castings: Rising Manufacturing Costs in Europe Boost Demand for High-Quality Chinese Castings

Affected by energy prices and supply chain realignment, manufacturing costs in parts of Europe remain high, leading many companies to turn to quality casting suppliers from China. Utilizing advanced Lost Foam Casting and V-Process Casting technologies, Qingdao Kehua produces various alloy castings with precise dimensions and high surface finish. Our castings are not only used in […]

Hydraulic Jacks: Participating in International Infrastructure Reconstruction Projects

Infrastructure construction and post-disaster reconstruction projects worldwide present a broad market for heavy-duty lifting equipment. Recently, a major bridge repair project in Southeast Asia extensively used large-tonnage hydraulic jacks produced by Kehua. Our jack products are renowned for their safety, reliability, and smooth lifting operation. The tonnage range covers from tens to thousands of tons, widely used […]

Mud Pump Parts: New Opportunities from the Middle East Oil and Gas Investment Boom

With recent announcements from multiple oil companies in the Middle East to increase the number of drilling rigs in response to global energy demand, the market demand for mud pump parts—the core equipment of drilling operations—continues to rise. The high-strength mud pump pistons, liners, and valves produced by Qingdao Kehua Petroleum Machinery Co., Ltd. have become designated […]

Kehua Precision Casting Technology Debuts at 2025 World Foundry Conference to Promote Green Manufacturing

The 16th World Precision Casting Congress (WCIC 2025) opened in Kobe, Japan, focusing on “Precision Casting Promoting Sustainable Social Development”. Qingdao Kehua Petroleum Machinery exhibited high-precision castings for petroleum equipment, including turbine compressor components and high-pressure valves. Kehua’s castings utilize automated production lines and 3D printing technology, with tolerances within ±0.05mm. The company recently registered […]

The global jack market grew by 4.7% annually, and Kehua hydraulic jacks made breakthroughs in polar applications.

The global portable jack market is expected to grow at a CAGR of 4.7%, reaching CNY 20.68 billion by 20317. Qingdao Kehua Petroleum Machinery developed hydraulic jacks resistant to -50°C for polar drilling applications, using special alloy steel and sealing technology. These jacks are certified by GOST-R and exported over 500 units to Russia in […]

China’s five-cylinder mud pump wins first Middle East order, Kehua’s accessories technology helps deep well drilling

China’s independently developed ZJ90DB ultra-deep well drill and QDP-2600HP five-cylinder mud pump have been shipped to the Middle East, marking a breakthrough in overseas markets for high-end domestic equipment. Qingdao Kehua Petroleum Machinery, as a core supplier of mud pump parts, provided key components such as high-wear-resistant liners and valve assemblies. Kehua’s bimetallic liner technology […]

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