The characteristics and advantages of the steel blanking process

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What is steel blanking?

Blanking is a steel manufacturing process in which a flat, geometric shape (or “blank”) is fed by a coil of metal plates into a press and die. In this process, the blank is flushed out of large sheets of metal. Under the press blanking machines can typically handle up to 72 inches (1828 mm) wide. 250 inch (6.35 mm) thick material, roll up to 80,000 pounds. Typically, multiple sheets are blanked out in one operation, and the blanked parts require a secondary finish to smooth the burrs along the bottom edges. Blanking line is a process in which square, round or rectangular parts are mechanically or hydraulically pressed or stamped out of coils.

The characteristics of the blanking process include:

Blanking is a metalworking process in which the metal workpiece is removed from the original metal strip or sheet. The material to be removed is a new metal workpiece or blank.

It is capable of producing economical metal workpieces, including strip steel and sheet metal during medium or high production processes, when the punch enters the die, the workpiece is removed from the original metal blank;

Make polishing and shearing parts on cutting edges;

Burr production;

Quality control by the punch and die clearance;

It can quickly produce holes of various shapes.

How does steel blanking work?

The main coil of raw material is placed on the uncoiler. After the coil head is stripped, the leading edge of the coil is fed into a flattener or leveler to remove any stress in the material and ensure that the cut section remains flat during the downstream process. Servo feed rollers push the material into a loop before pressing. With each cycle of the punch, a measured length of material on the upper stroke is fed into the press. The number of strokes per minute varies from 6 to 60. For example, a die has 40 strokes per minute (SPM), so each stroke takes 1.5 seconds. Assume that, for an application involving mild steel, 1 second of a 1.5-second cycle is required for feeding and 0.5 seconds for clamping and cutting.

Advantages of steel blanking

The blanking process of steel has become prominent in the steel manufacturing industry because of its ability to produce highly specialized parts that minimize waste and cost. For steel blanking, the goal is to use stamped/punched material rather than the material left over from the die. Simply put, the punched part is the demand part.

Steel blanking produces economical metal parts that can be customized to meet specific customer needs. During blanking, the material is continuously fed into the machine, which results in less setup and part management. Simply put, steel cutting allows you to do more with less money. This greatly reduces waste because these tools are often designed to nest parts as tightly as possible. In addition, shipping costs are reduced and only net weights are sent.

Leading manufacturer of steel cut to length line

Foshan Te Xiang Machinery Co., Ltd is a China leading manufacturer of metallic processing machines, including slitting line, cut to length line, stainless steel polishing line, ERW tube mill line, roll forming machines, embossing line and etc.

TX Machinery’s steel cut to length line is designed and built with the highest accuracy, efficiency and performance to process a range of black and non-ferrous metal materials for metal service centers and steel mills, the automotive industry, the home appliance industry and many other industries around the world. Please feel free to contact us if you have any questions about steel blanking or our metal cut to length lines.  

Contact TX Machinery:

Contact person: Mai(Mr.)



Add Dong Bian Lang Develop Area,

Xing Tou Heng Tou Village,

Nanzhuang, Chancheng, Foshan, Guangdong, China

Postcode: 528061


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