Tengzhou, Shandong — The production floor at Zhongyou Heavy Industry Machinery Equipment Co., Ltd. regularly handles a specific challenge that defines deep drawing technology: converting flat metal blanks into seamless three-dimensional components without tearing, wrinkling, or excessive thinning. For manufacturers of stainless steel kitchen sinks, automotive fuel tanks, and appliance housings, this transformation requires hydraulic presses that balance force distribution with precise material flow control.
Since its establishment in 2006, Zhongyou has developed dedicated deep drawing press lines ranging from 100 tons to 3000 tons capacity. The company’s approach centers on addressing the fundamental physics of deep drawing—where sheet metal is pulled into a die cavity by a punch while a blank holder regulates material flow to prevent defects.
Dual-Action Configuration for Complex Geometries
Zhongyou’s double-action deep drawing presses represent the core of its product portfolio for intricate forming operations. These machines employ two independently controlled hydraulic rams: one dedicated to blank holding pressure and the second managing the drawing stroke. This separation allows operators to adjust the timing and force of blank holding relative to punch movement—a critical factor when forming materials like stainless steel or high-strength aluminum alloys that work-harden during deformation.
Process-Specific Engineering
For kitchen sink manufacturing—a sector where Zhongyou has established significant market presence—the company configures presses with heated platens and specialized die cushions. Stainless steel deep drawing demands higher forming pressures than mild steel due to material strength and strain-hardening characteristics. Zhongyou’s 315-ton and 500-ton four-column models for this application include thermal management systems that maintain platen temperatures to reduce springback and improve surface finish consistency.
In automotive applications, the company supplies presses for fuel tank forming, transmission pan production, and structural component manufacturing. These installations typically require servo-hydraulic systems that allow programmable slide velocity curves. The ability to slow the punch during critical forming stages—then accelerate through non-critical portions of the stroke—reduces cycle time while maintaining part quality.
Tooling Integration and Process Support
Beyond machine supply, Zhongyou provides integrated forming solutions including die design consultation and automated material handling configurations. The company’s engineering team utilizes forming simulation software during project planning to predict material flow patterns and identify potential defect zones before tooling manufacture begins.
Zhongyou’s deep drawing press manufacturing occurs at its 40,000-square-meter Tengzhou facility, equipped with CNC machining centers and heavy-duty assembly infrastructure. Frame construction utilizes three-beam, four-column architecture with stress-relieved welded steel plates. Hydraulic systems employ cartridge valve manifolds for reduced leakage points and simplified maintenance access.
Quality verification includes pressure testing to 1.5 times rated capacity, stroke accuracy measurement, and continuous running trials before shipment. The company maintains ISO 9001 quality management and CE safety certifications, with SGS verification for export markets.
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