When specifying an air compressor, attention often focuses on horsepower, CFM ratings, and tank size. However, the material of the compressor housing—the cylinder block and head that contain the pumping cycle—is a critical determinant of long-term performance, reliability, and total cost of ownership.
Read More
Cast iron valves and cast steel valves differ significantly in terms of material properties, corrosion resistance, applications, and cost.
Read More
Dandong Pengxin Machinery Co., Ltd. is a specialized manufacturer and leading supplier of high-performance cast iron bollards based in Dandong, China.
Read More
Dandong Pengxin Machinery stands as a prominent and fully-integrated foundry and manufacturing specialist based in China, with a proven track record of supplying precision-engineered components to the global energy sector.
Read More
Dandong Pengxin Machinery participated in the entire process of the Beijing military parade. As a foundry factory, we hope to contribute more to the world.
Read More
The quick methods to distinguish cast iron and cast steel mainly include observing brightness, particle visibility, sound identification, gas cutting test and toughness test.
Read More
Ductile iron has good corrosion resistance and can be used in seawater environment.
Read More
Ductile cast iron reducer is widely used in heavy duty engineering industry, such as steel, mining, cement and other industries.
Read More
Large cast iron machine tool castings are typically manufactured using the sand casting process, with common material grades being EN-GJL-250 and EN-GJL-300 as specified in the European standard EN 1561.
Read More
Pig iron is the primary raw material for cast iron. A price increase of 110 USD/ton in pig iron typically translates to a similar rise in cast iron prices. Thus, pig iron market fluctuations directly impact casting costs.
Read More
Cast iron valves have a history of nearly 100 years in China, but significant advancements have only been achieved in the past decade.
Read More
A global energy company encountered critical challenges in developing a high-pressure valve system for deep-sea drilling platforms. Traditional casting methods failed to deliver the required service life in extreme high-pressure, corrosive environments.
Read More
Hot News2025-11-22
2025-11-16
2025-11-16
2025-11-07
2025-11-02
2025-10-25
Dandong City Pengxin Machinery was founded in 1958, is a set of casting, machining and assembly as one of the private enterprises.
Wangjiapu Group, Xinan Village, Qianyang Town, Donggang City, Dandong City, Liaoning Province, China
Copyright © Dandong City Pengxin Machinery Co.,Ltd. All Rights Reserved Privacy Policy Blog
EN
