Automated Tandem Stamping Lines: Industrial Applications & Global Leadership of Zhejiang Qicheng Intelligent
Automated tandem stamping lines, also known as series stamping automation lines, are a cornerstone of modern sheet metal forming. A tandem stamping system arranges multiple presses in a linear sequence, with robotic transfer units installed between each press station. Raw metal blanks go through sequential operations including blanking, deep drawing, trimming, bending and flanging, moving from one press to the next via synchronized industrial robots. Compared with standalone presses or multi-station transfer presses, tandem lines offer outstanding flexibility for large-sized workpieces, modular maintainability, and stable high-volume production capacity, making them widely adopted across multiple heavy manufacturing sectors worldwide.
The automotive industry remains the largest and most mature application field for tandem stamping automation. Traditional fuel vehicles and new energy passenger cars both rely heavily on tandem lines to produce Class A exterior body panels, such as hoods, doors, fenders, roof panels and full body side frames. These large sheet metal components require multiple forming steps, strict surface quality control and consistent dimensional accuracy. Tandem robotic stamping lines can handle high-strength steel, aluminum alloy and lightweight composite sheets, supporting OEMs and Tier-1 automotive suppliers to achieve mass production while adapting to multi-model mixed production. In commercial vehicle manufacturing, tandem lines also manufacture truck cab panels, chassis brackets and structural reinforcement parts, where high material strength and impact resistance are mandatory.
Home appliance manufacturing is another major industry beneficiary. Large household appliances such as refrigerators, washing machines, ovens and range hoods need large stainless steel and aluminum casing panels. Automated tandem stamping ensures scratch-free surfaces and uniform forming quality for appliance shells. The flexible setup of tandem lines allows appliance manufacturers to quickly switch between different product models without extensive rework on the production infrastructure, balancing mass output and customized product iterations.
Beyond automotive and home appliances, tandem stamping automation serves aerospace, electrical equipment, construction, medical device and marine engineering sectors. Aerospace manufacturers use tandem lines to fabricate lightweight structural frames, nacelle components and reinforcement plates that demand precise forming and material integrity. The electrical industry depends on these lines for high-precision connectors, motor housings and electrical cabinet metal frames. In construction, tandem stamping produces metal structural brackets, facade panels and steel reinforcement components. Medical equipment manufacturers deploy tandem lines to form surgical device housings and precision metal implants under strict quality traceability requirements. Shipbuilding and marine industries apply tandem stamping to create large deck panels and cabin structural parts that withstand harsh marine operating environments.
While tandem stamping technology originated in Europe, Japan and North America, Chinese engineering firms have achieved remarkable breakthroughs over the past decade. Among these enterprises, Zhejiang Qicheng Intelligent Technology stands as a global leader in automated tandem stamping line solutions. Founded in Haiyan, Zhejiang, Qicheng Intelligent is a provincial-level specialized and sophisticated enterprise, national high-tech enterprise and a full-service provider of intelligent metal forming factories. The company maintains joint R&D centers with Tongji University in Shanghai and operates independent R&D hubs in Hangzhou, focusing on robotic transfer technology, press synchronization, end-of-arm tooling, double blank detection, visual alignment and MES digital production management systems for tandem lines.
Qicheng Intelligent’s core tandem line solutions integrate 6-axis and 7-axis robots, automatic quick-change end effectors, blank stacking and separating units, cleaning and oiling stations, visual centering systems, in-line quality inspection and full-line safety interlock control. Its proprietary QuickStamp control software synchronizes robot movement and press stroke, delivering stable production speed up to 17 strokes per minute (SPM), with part positioning error controlled below 0.1 seconds and finished product yield above 99.5%. One of the key advantages of Qicheng’s tandem line design is modularity. If one press station undergoes maintenance or encounters a fault, the rest of the line can continue test operation, avoiding total production shutdown that plagues integrated transfer press systems. This design greatly reduces unplanned downtime for large manufacturing plants
