Determining the required tonnage for a hydraulic press depends on several factors, including the processing method, material properties, workpiece size, and equipment parameters. Here are the key considerations:

• Processing method:
  1. Molding: Consider the chemical properties of the material and the curing force needed for forming.
  2. Stamping: Involves shear forces, so cutting forces need to be calculated.
  3. Bending: Requires calculating the bending force while considering material rebound.
  4. Stretching/forming: Involves calculating stretching force and blank holder force.
  5. Extrusion/forge: Consider material flow resistance.
• Add a safety margin: The calculated tonnage should include an additional 20%-30% to accommodate material variations, mold wear, and other uncertainties.
• Consult with experts: Refer to hydraulic press manufacturer’s tonnage recommendations, and consult engineers for complex processes or specialized materials (like composites, high-strength steels, or titanium alloys).
• Final decision principle:
  1. Opt for larger tonnage rather than smaller to avoid overloading the press, which extends the machine’s lifespan.
  2. Match the tonnage to the process requirements, balancing speed, accuracy, and stability.
  3. Consider the economics by selecting a cost-effective model that meets your needs.

Hydraulic presses are equipped with multiple safety features to ensure operator protection and machine safety such as:

• Emergency stop button
• Safety guarding devices
• Photoelectric safety
• Two-hand start control
• Hydraulic anti-drop support mechanisms
• Hydraulic anti-drop signal feedback
• Mechanical safety locking pins
• Self-Diagnosis system

These features help prevent accidents and ensure safe operation in various environments.

Hydraulic presses are widely used in the production of automotive parts, where they perform processes, such as stamping, stretching, flanging, and shaping. By integrating with automatic robotic arms and grippers, hydraulic presses speed up the loading and unloading of workpieces, reducing manual intervention and enhancing equipment utilization. This automation reduces cycle times and increases productivity, making manufacturing processes faster and more efficient.

Hydraulic presses offer several advantages in metallurgy and steelmaking such as:

• High pressure and large tonnage: Hydraulic presses can generate pressure ranging from hundreds of tons to tens of thousands of tons, making them suitable for processing high-strength metallic materials.
• Wide processing range: Capable of performing forging, extrusion, correction, shearing, and other metalworking processes with high adaptability.
• Precision and repeatability: Advanced CNC systems provide ±0.01mm precision control, ensuring consistent product quality.
• Automation integration: Hydraulic presses can be integrated with robots, automatic feeding systems, and rapid mold change systems, enabling fully automated operations.