What is a Hydraulic Press?
How It Works With The Hydraulic Press
Hydraulic presses is a machine that has a bed or a plate in which the metallic material is placed so that it can be crushed, straightened or moulded. The concept of the hydraulic press is based on Pascal’s theory. A hydraulic press is used for almost all industrial purposes. But basically it is used for transforming metallic objects into sheets of metal. In other industries, it is used for the thinning of glass, making powders in case of the cosmetic industry and for forming the tablets for medical use.
Working Principle of a Hydraulic Press
This brief video gives a good synopsis of Pascal’s theory.
What Are the Features of a Hydraulic Press Machine?
Movement Transfer: The principles of hydraulic pressure dictate that liquids cannot be compressed; they can only be moved. If a hydraulic system is full of liquid — usually oil — a compression at one end of the system results in a movement at the other end. The liquid functions as a lever, but it is not forced into certain sizes and shapes like levers are.
Energy Magnitude: The main feature of a hydraulic press is its ratio of size to energy. For example, if a business owner wanted to crush a car without hydraulics, he would need an extremely large piece of machinery with an extremely powerful engine to produce the necessary energy to crush the car. Hydraulics transfer that energy to pressurized liquid. Pressurized liquid takes up less space and needs less energy to function than other means of heavy-duty pressing.
Energy Transfer: Hydraulic systems transfer energy efficiently. Because hydraulic presses connect a small piston to a large piston via hydraulics, the user does not need to use as much force to move the large piston as he would by pressing it directly. The potential energy of the pressurized liquid, along with the force of the user pressing the small piston, moves the large piston. read more…
Hydraulic Presses – How are they used?
- Electric motor manufacturers assemble motor shafts to rotors, compress laminations, and press cores into housing.
- Automotive manufacturers press tiny shafts into water pumps, assemble shock absorbers, blank and form diaphragms, and stake disc brakes together.
- Jewelers coin Boy Scout pins.
- Frozen fish blocks are shaped for more efficient processing.
- Aircraft companies form tough titanium housings.
- Tuba bells and cymbals are shaped in huge forming presses.
- Hardened road grader blades and machine ways are straightened.
- Computer disc shafts are pressed into precision bearings.