90 Ton Hydraulic Press For Under $500 [Mockup]

90 Ton Hydraulic Press For Under $500 [Mockup]

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What to Consider when Choosing a Hydraulic Press

About Hydraulic Presses

The popularity of hydraulic presses has seen a significant rise over the last three decades, surpassing the previously dominant mechanical presses. Until the early 1990s, mechanical presses, which utilize a rack and pinion and a crankshaft to deliver considerable tonnage without relying on an external power source, were the industry standard for production press work.

Hydraulic presses, on the other hand, use hydraulic cylinders—single-directional mechanic actuators—to generate compressive force. This innovative concept, attributed to Joseph Bramah who invented it in 1795, was inspired by the movement of fluids through early plumbing systems.

The working principle of hydraulics is based on Pascal's law. This law explains that when pressure is applied to an incompressible fluid, it is transmitted equally in all directions. This principle allows for the force generated by compressing the fluid to be used in moving mechanical components like pistons. A smaller piston can pressurize the fluid to move a larger piston, thereby creating a force multiplier, an essential aspect in the functionality of hydraulic systems.

Consider Your Needs

Before searching for the best deals, it's essential to understand the specific requirements a hydraulic press will fulfill in your workshop or business. By listing the tasks you expect the press to perform, you can better comprehend the necessary strength, size, type, and model of the press. Hydraulic presses are versatile machines capable of bending, blanking, drawing, forming, molding, punching, and stamping. Not all presses can perform all these actions, so this should be a critical consideration.

Understanding Tonnage

When selecting a hydraulic press, consider the tonnage needed for various tasks. If you are transitioning from a mechanical press, the tonnage requirements typically remain the same. However, hydraulic presses offer the ability to adjust the tonnage to suit specific tasks, unlike mechanical presses which operate at fixed tonnage.

The required tonnage to punch material depends on three factors: the perimeter of the punch, the shear strength of the material, and the material thickness. The punching force or required tonnage can be calculated using these parameters.

Shear strength, often measured in kilonewtons per square millimeter (kN/mm²) or pounds per square inch (PSI), is the force required to cause material failure through sliding along a plane parallel to the force direction, such as punching a hole in paper. Different materials have varying shear strengths, making it crucial to understand the specifications of the material being used, including its thickness.

Punching is just one application of a hydraulic press. Various other functions also require specific tonnage for effective operation, so it is essential to understand these requirements for any intended use of your hydraulic press.

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