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Hydraulic Press

HARSLE is a professional manufacturer for Hydraulic press including C frame type, Four-column type, deep-drawing press, hydroforming press, and other customized presses. They are widely used in the field of cutting, stamping, bending, punching, forming, dreep-drawing, curling, etc.

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Hydraulic Press Knowledge​​​​​​​

HARSLE knowledge center will provide the up-to-date information about hydraulic press.
Y27-400T.jpg
Y27-400T Deep Drawing Hydraulic Press for Wheelbarrow Body Forming
This article mainly introduces the Y27-400T deep drawing hydraulic press machine and how to operate it. HARSLE Y27-400T deep-drawing hydraulic press adopts a three-beam and four-column structure, which is mainly composed of the machine body, hydraulic system
August 05, 2022
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The Maintenance Guide of Hydraulic Press
Hydraulic press, also known as oil pressure, is a kind of machinery that uses liquid static pressure to process metal, plastic, rubber, wood, powder and other products. It is commonly used in pressing process and press forming process, such as: forging, stamping, cold extrusion, straightening
October 29, 2021
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4 Tricks to Teach You Deep Drawing And Forming of Sheet Metal
Deep drawing is a stamping and forming process in which a flat sheet is formed into an open hollow part through a concave die under pressure of a convex die. In all types of sheet metal components, deep drawing is often used for the processing of various cylindrical parts, hemispheres and parabolic
June 18, 2021

Hydraulic Press Video

Hydraulic Press FAQ

  • Q How do you care for a hydraulic press machine?

    A
    Keep the oil clean (filtered) and at the proper operating temperature. Replace the hydraulic fluid if it smells burnt. Monitor the condition of seals, replace if necessary, and keep polished parts (e.g. cylinder rods and shafts) clear and free of abrasives.
  • Q How does a hydraulic press multiply the force?

    A
    A liquid is not compressible .
    When you press with a plunger diameter 10mm. in a closed and filled up wilt a liquid (eg hydtaulic oil) and move the small plunger 100mm. You have a (pipe) connection to a bigger cylinder with plunger diameter 100mm. Than the this bigger plunger will move only 1mm. however the mechanical force will be 100x as strong (friction not taken into account)
    The oil pressure (force) is in ratio to the surface of the plunger (10x diameter = 100x surface/force).
    If you close the pipe by a one direction shutter valve, you can repeat the pump movement and every stroke the big (100mm) plunger will move 1 mm. with 100 fold force.
  • Q How do hydraulic presses work?

    A
    Hydraulic systems work on the Pascal's Principle.
    Pascal’s principle states that a pressure change occurring anywhere in a confined in-compressible fluid is transmitted throughout the fluid such that the same change occurs everywhere.
    Hydraulic systems use an in-compressible liquid to transmit force from one location to another through the liquid medium.
    Pascal's law can be stated as when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container.
    Mathematically, We can write,
    P1=P2 (since the pressures are equal throughout).
    Since pressure equals force per unit area, then it follows that
    F1A1=F2A2 
    It can be shown by substitution that the values shown above are correct, 1 pound / 1 square inches = 10 pounds / 10 square inches
    Because the volume of fluid pushed down on the left side equals the volume of fluid that is lifted up on the right side, the following formula is also true.
    V1=V2 
    by substitution,
    A1×D1=A2×D2 
    A  = cross sectional area
    D  = the distance moved or A1A2=D2D1 
    This system can be thought of as a simple machine (lever), since force is multiplied.The mechanical advantage can be found by rearranging terms in the above equation to
    Mechanical Advantage(IMA)  =D1D2   =A2A1 
    For the sample problem above, the IMA would be 10:1 (10 inches/ 1 inch or 10 square inches / 1 square inch).
  • Q What is the function of a hydraulic press machine?

    A
    The hydraulic press is composed of two hydraulic cylinders of different sizes, which are filled with water or oil. Water filling is called "hydraulic press"; Oil filled is called "oil press". There is a sliding piston in each of the two hydraulic cylinders. If a certain value of pressure is added to the small piston, according to Pascal's law, the small piston transmits this pressure to the large piston through the pressure of the liquid and pushes the large piston up. Let the cross-sectional area of the small piston be S1 and the downward pressure on the small piston be F1. Therefore, the small piston pair can be transmitted in all directions by the liquid with constant size ". The pressure on the large piston must also be equal to P. If the cross-sectional area of the large piston is S2, the upward pressure cross-sectional area generated by pressure P on the large piston is a multiple of the cross-sectional area of the small piston. From the above formula, if a small force is added to the small piston, a large force will be obtained on the large piston. In practice, a hydraulic press can be used to press plywood, extract oil, extract heavy objects, forge steel, etc.
     
  • Q How many types of hydraulic presses are there?

    A
    According to the structural form, it is mainly divided into:
    Four column, single column (type C), horizontal, vertical frame, universal hydraulic press, etc.
     
    It is mainly divided into:
    Metal forming, bending, stretching, blanking, powder (metal, non-metal) forming, press fitting, extrusion, etc.
     
    Hot forging hydraulic press:
    Large forging hydraulic press is a forging equipment that can complete various free forging processes. It is one of the most widely used equipment in the forging industry. At present, there are 800t, 1600t, 2000t, 2500t, 3150T, 4000t, 5000t and other series of forging hydraulic presses.
     
    Four column hydraulic press:
    The hydraulic press is suitable for the pressing process of plastic materials. Such as powder product forming, plastic product forming, cold (hot) extrusion metal forming, sheet drawing, transverse pressing, bending, turning through, correction and other processes.
     
    Four column hydraulic press can be divided into four column two beam hydraulic press, four column three beam hydraulic press, four column four beam hydraulic press, etc.
     
    single column hydraulic press:
    The working range can be expanded, the hydraulic cylinder stroke can be lengthened (optional) by using three-sided space, the maximum expansion is 260mm-800mm, and the working pressure can be preset; the heat dissipation device of the hydraulic system.
     
    Gantry hydraulic press:
    The machine parts can be assembled, disassembled, straightened, calendered, stretched, bent and punched, so as to truly realize multi-purpose of one machine. The worktable of the machine can move up and down, the size expands the opening and closing height of the machine, and the use is more convenient.
     
    Double column hydraulic press:
    This series of products are suitable for press fitting, bending and shaping, embossing and indentation, flanging, punching and shallow stretching of small parts; Molding and other processing technologies of metal powder products. It adopts electric control, with inching and semi-automatic circulation, can maintain pressure and delay, and has good slider guidance, convenient operation, easy maintenance, economy and durability. According to the needs of users, thermal instrument, ejector cylinder, stroke digital display, counting and other functions can be added.
  • Q How does a hydraulic press machine work?

    A
    The areas of the large and small plunger are S2 and S1, and the forces on the plunger are F2 and F1. According to Pascal principle, the pressure of closed liquid is equal everywhere, that is, F2 / S2 = F1 / S1 = p; F2=F1(S2/S1)。 It indicates the gain effect of hydraulic pressure. Like mechanical gain, the force increases, but the work does not gain. So, the moving distance of large plunger is S1 / S2 times that of small plunger.
     
    The basic principle is that the oil pump transmits the hydraulic oil to the integrated cartridge valve block, distributes the hydraulic oil to the upper or lower chamber of the oil cylinder through each one-way valve and overflow valve, and makes the oil cylinder move under the action of high-pressure oil Hydraulic press is a device that uses liquid to send pressure. Pascal's law follows when liquid transfers pressure in a closed container. The hydraulic transmission system of four column hydraulic press composed of power mechanism, control mechanism, actuator, auxiliary mechanism and working medium. The power mechanism usually adopts the oil pump as the power mechanism, which is generally an integral oil pump. To meet the requirements of the movement speed of the actuator, one or more oil pumps selecting. Gear pump for low pressure (oil pressure less than 2.5MP); vane pump for medium pressure (oil pressure less than 6.3mp); plunger pump for high pressure (oil pressure less than 32.0mp). Pressure processing and forming of various plastic materials, such as extrusion, bending and deep drawing of stainless steel plate and cold pressing of metal parts. At the same time, it can also use for pressing powder products, grinding wheels, bakelite, and resin thermosetting products.

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5    The after-sales service is very good

 Customer   2021-12-31

HARSLE's hydraulic press facilitates speed adjustment and prevents overload. The after-sales service is very good, the sales staff have a good attitude, and they will reply to the news in time. Good business will recommend it to people in need.

5    Highly recommended!

 Customer   2021-12-31

The pressure and speed of HARSLE's hydraulic press can be easily and steplessly adjusted in a wide range. Moreover, the pressure can be maintained for a long time in a certain stroke according to the process requirements. Highly recommended!

5    Design, manufacture, operation and maintenance are convenient

 Customer   2021-12-31

Design, manufacture, operation and maintenance are convenient, and it is convenient to realize remote control and automation. HARSLE’s engineers have a very good attitude, and any problems can be communicated and resolved in a timely manner.

5    Easy to get the maximum pressure.

 Customer   2021-12-31

HARSLE's after-sales service is great! His hydraulic press is easy to get a large working stroke and easy to get the maximum pressure.

5    HARSLE's four-column hydraulic press is very good.

 Customer   2021-12-31

HARSLE's four-column hydraulic press is very good. The size and opening of the work surface can be customized according to requirements. Very good choice.

5    Reliable quality, energy-saving

 Kashif Rasheed   2021-12-15

Reliable quality, energy-saving and environmental protection can realize automatic working cycle and automatic overload protection.

5    HARSLE four-column hydraulic press is equipped

 Lenny Khazamula   2021-12-14

HARSLE four-column hydraulic press is equipped with SIEMENS PLC and servo pump unit.

5    HARSLE's hydraulic press facilitates speed adjustmen

 Rakesh   2021-12-13

HARSLE's hydraulic press facilitates speed adjustment and prevents overload. The after-sales service is very good, the sales staff have a good attitude, and they will reply to the news in time. Good business will recommend it to people in need.

5    HARSLE hydraulic press manufacturer

 Salviano Vicente neto   2021-12-11

HARSLE hydraulic press manufacturer, hydraulic components are standardized and serialized products, which are convenient for design, manufacture and promotion.

5    The pressure and speed of HARSLE's hydraulic press

 Donatas   2021-12-10

The pressure and speed of HARSLE's hydraulic press can be easily and steplessly adjusted in a wide range. Moreover, the pressure can be maintained for a long time in a certain stroke according to the process requirements. highly recommended!

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