YWLX, combining global latest technology of five stands tandem cold mill, has developed a new five stand tandem cold mill equipped with double tension reels, flying shear and Magnetic conveyor belt, which to be of big reduction rate, full continuity, high yield with less invest and low cost. The mill will use new rolling process to produce cold rolling steel strips, especially for wide steel strip and zinc galvanizing basic plate.

Tension control systems, such as weight tension control, winding tension control, and the automatic tension controller, play a vital role in maintaining product quality and precision across various industries.

 In 2015, YWLX had successfully developed first production line of special Z-type steel for ZSB ocean petroleum casing pipe. The production line of special Z-type steel has partly solved import substitution.  The special Z-type steel for ocean petroleum casing pipe had before been monopolized by some firms of Japan and Germany. Due to its technical threshold is very high, its importing price is also very expensive. In order to break up their monopoly and achieve the home-made of special Z-type steel, YWLX energized and mobilized its best talented personnel in metallurgical and rolling field successfully to develop first production line of special Z-type steel.  The production line’s success, based on YWLX’s research and development achievements and engineering experiences for many years in metallurgical and rolling field, had broken up technical barriers and tackled many technical difficult problems and developed unique rolling pass for Z-type steel. The production line has been stably and reliably and producing. 

AGC( Automatic Gauge Control) has been an essential device to be used in strip rolling process to promote rolling precision.  YWLX has been pursuing to develop and research completed equipment of AGC since it was founded in 2003.   As the one of YWLX's core technology, YWLX’s AGC had as far as been used on hundreds of cold/hot rolling mills, temper mills and skin pass mills in domestic and oversea. YWLX’s AGC can completely carry out precise control of strip gauge. 

Four/Six Hi finishing reversing cold rolling mills, as YWLX’s matured products, have been used in many Chinese steel firms. Especially, the Six Hi reversing precise cold rolling mill, supplied by YWLX, can roll not only carbon strip steel but also oriented/non-oriented silicon strip steel and stainless strip steel.    YWLX has developed the series of 900mm, 1150mm and 1380mm width of Six Hi reversing cold rolling mill, which produce not only the carbon steel strip, but also silicon steel strip and stainless steel strip. When rolling carbon steel strip(SPHC), the thickness can be reduced from 3.0mm to 0.2mm by six rolling passes without any annealing in process. When rolling oriented/non-oriented silicon strip steel, Its thickness can be reduced from 0.63mm to 0.26mm by 2~3 rolling passes. The thickness tolerance and flatness has satisfied the technical requirements. 

The steel industry, particularly in processes like temper rolling and temper pass mills, has been undergoing significant technological advancements.

The temper pass mill is an essential piece of equipment in the manufacturing of various metal products, particularly in the processing of aluminum and steel.

In steel manufacturing, maintaining a consistent material thickness is essential for ensuring high-quality products that meet industry standards.

In modern manufacturing, particularly in industries like steel production, AGC systems (Automatic Gauge Control systems) are indispensable for ensuring consistent product quality and optimal production efficiency.

Skin pass Mill, the one of important facilities in galvanizing line, functions as following:   1) To create surface roughness of galvanized sheet according to requirement in order to promote the quality of sequential color coating process.   2) To improve the flatness of galvanized sheet.   3) To improve mechanical properties of galvanized sheet, to decrease or eliminate yield plateau and stretcher strains.  Beijing YWLX Science & Tech. Co. Ltd, summarizing and absorbing the latest domestic abroad technologies and combining Chinese marketing requirements, has developed medium top quality skin-pass mill of width in 1800mm, 1680mm,1550mm, 1450mm and 1150mm etc.. And the rolling force can be up to 4000KN, 5000KN，6000KN, 8000KN, 10000KN, 12000KN etc., which have been widely used in all kinds of production lines of zinc galvanized, aluminum-zinc galvanized and lithium-magnesium-zinc galvanized and continuous pickling-temper lines etc., with winning the customer praise.  We are the leading manufacturer of Skin Pass Mill in China.

 Main functions 1) Eliminating yield terrace, entirely improving strip’s mechanical property and deep draw ability. 2) Promoting the cleanliness of strip’s surface or obtain a certain roughness of strip’s surface; improving its process ability. 3) Improving flatness and straightness. 4) With the function of soft reduction to change the thickness and mechanical property of steel strip.

In the automotive industry, the demand for high-performance materials with specific strength, durability, and surface qualities is ever-growing.