H-Type Hydraulic Power Press Machine, also referred to as an H-frame press, is a heavy-duty machine used in various industrial applications for tasks such as forming, pressing, bending, punching, and drawing metal and other materials. Its name comes from the machine’s H-shaped frame structure, which provides excellent strength and stability. Here’s a detailed description:

Key Features:

1. Frame Design:

   • The H-frame consists of two vertical columns connected by a sturdy crossbeam, forming an “H” shape.
   • This closed-frame design provides high rigidity and allows for uniform distribution of the force, making it capable of handling heavy loads and precise applications.
   • The frame is usually made of high-strength steel to ensure durability, withstand high pressure, and prevent deformation during operations.

2. Hydraulic System:

   • The hydraulic system includes a pump, motor, hydraulic valves, and a cylinder that generates pressure.
   • The hydraulic cylinder powers the ram, which applies vertical pressure to the material. The pressure and movement of the ram can be finely controlled for different tasks.
   • Pressure range: H-type hydraulic presses can generate force ranging from 10 tons to over 1000 tons, depending on the model and application.

3. Ram/Platen:

   • The ram, or moving platen, is driven by the hydraulic cylinder to apply downward force onto the material.
   • The fixed platen (table) below holds the material in place. Both platens are designed to be parallel for even distribution of pressure.
   • The machine can feature adjustable ram stroke length to allow precision in pressing depth.

4. Adjustable Bed Height:

   • The bed height can typically be adjusted to accommodate different sizes of workpieces. This flexibility is especially useful for operations requiring large materials or deep pressing.

5. Control System:

   • Modern H-type presses often feature digital control systems, allowing operators to control the force,

stroke length, and speed with high precision. These control systems may include touchscreens or programmable logic controllers (PLC) to customize the operation for various tasks.

6. Safety Features:
   • Safety guards, emergency stop buttons, and pressure release mechanisms are commonly integrated to protect operators during high-pressure operations.
   • Light curtains or sensors may be installed to automatically stop the press if an object or hand enters the operating area.

Applications:

1. Forming and Forging:

   • Used to shape materials like metal, plastic, or composites by applying uniform pressure.
   • Ideal for deep drawing, stamping, and forging operations in industries like automotive, aerospace, and manufacturing.

2. Bending:

   • The H-type hydraulic press can be used for bending metal sheets or bars into different shapes or angles.

3. Punching:

   • Commonly used for punching holes or cutting intricate designs into metal sheets or other materials with precision.

4. Straightening:

   • The press can straighten out bent or deformed metal pieces, especially in large workpieces like beams and structural components.

5. Molding:

   • Often used in the production of molds, dies, and toolings due to its ability to handle high pressure with fine control.

Advantages:

• Stability and Strength: The H-frame design provides exceptional stability, which is necessary for handling large forces without frame deformation.
• High Precision: The hydraulic system allows for highly controlled and repeatable force application, leading to precise results.
• Versatility: Suitable for a wide range of applications, including heavy-duty tasks that require significant force, like metal forming, forging, and die-cutting.
• Customizable: Many models allow adjustments in bed height, stroke length, and force, making them flexible for different types of operations and material sizes.

Technical Specifications:

• Press Capacity: Can range from 5 tons to over 500 tons.
• Stroke Length: Adjustable, typically between 150 mm and 260 mm.
• Table Size: Varies by machine, typically from 75 mm x 600 mm to much larger, depending on application needs.
• Power Source: Typically powered by an electric motor driving a hydraulic pump.
• Control System: May include manual, semi-automatic, or fully automatic modes with digital controls.

Common Industries:

• Automotive: Used for forming and stamping automotive body parts.
• Aerospace: For precision forming of high-strength materials.
• Metal Fabrication: In workshops and factories for bending, straightening, and forming large sheets or metal structures.
• Plastic and Rubber: In manufacturing molds for plastic and rubber products.