Features of the Structure, Edge Pressing System, and Control System of a Stretching Hydraulic Press

In this issue, Jianlong Hydraulic Technology will share the features of the structure, edge pressing system, and control system of a stretching hydraulic press. We welcome your discussion and communication to jointly promote the iterative upgrading of hydraulic machinery.

1. Mechanical Structure Features

1.1 High Rigidity Machine Body

• Three-beam four-column type: Composed of an upper crossbeam, worktable, slider, and four columns. Simple structure, economical and practical, with a spacious working space; suitable for stretching parts, pots, sinks, symmetrical parts, etc.

• Frame type: All-steel plate welding + aging treatment, high rigidity, good resistance to eccentric loads, and high guiding accuracy of the four corner eight-sided guide rails; suitable for large irregular parts, automotive body panels, high precision requirements, etc.

1.2 Wear-resistant and Durable Key Components

• Column and piston rod treatment: Surface high-frequency quenching and hard chrome plating, good wear resistance, extending the service life of the equipment.

• Main cylinder material: Made of alloy cast steel or integral forged steel, precision ground, ensuring high reliability under high pressure.

• Imported Sealing Elements: Utilizing imported brand sealing rings ensures excellent sealing performance and prevents leakage.

1.3 Extended Guide Structure

• Strong Anti-eccentric Load Capacity: The extended guide design and double-nut locking nut structure prevent loosening and ensure smooth slider movement.

• High Parallelism: The four-column, three-plate structure ensures the parallelism between the lower and upper working surfaces reaches less than 0.1mm.

2. Features of the Blanket Pressing System

2.1 Hydraulic Cushion/Ejection Cylinder Configuration

• Independent Blanket Pressing Force Adjustment: Both tension and blanket pressing forces can be independently (proportionally) adjusted to adapt to different materials and drawing depths.

• Synchronous Hydraulic Cushion Action: Provides adjustable ejection force (typically 20%-40% of the main cylinder pressure) to prevent wrinkling of the sheet material during drawing.

2.2 Double-Action Structure (For Deep Drawing)

• Internal and External Double-Action Beams: For deep-drawn parts, the double-action hydraulic press allows for independent control of the blanket pressing force and tension force, resulting in better blanket pressing performance.

• Four-corner pressure adjustment: The pressure at each of the four corners of the pressure block can be independently adjusted, facilitating the stretching of asymmetrical parts.

3. Control System Features

3.1 Intelligent Control

• PLC Control: Employs a programmable logic controller (PLC) that supports preset and adjustable parameters such as pressure, stroke, and speed.

• Touchscreen Operation: User-friendly interface for convenient parameter adjustment and status monitoring.

• Automatic Counting Function: Features an automatic counting function for easy production management.

3.2 Multi-stage Pressing Mode

• Four-stage Pressing: Fast/slow/increased/holding time are all adjustable to adapt to complex process requirements.

• Electronic Scale/Encoder Control: Stroke is digitally input using an electronic displacement encoder, ensuring convenient operation and high precision.

For more information/suggestions on stretching hydraulic presses or to purchase other high-quality hydraulic presses, please contact us (or scan the WhatsApp QR code below). Jianlong Hydraulic Technology will provide you with personalized and customized professional solutions and is dedicated to serving you.