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How to Make a Hydraulic Press Brake

time:2023-10-29 views:(点击 65 次)
[Article Summary]: Hydraulic press brakes are machines used for bending metal into specific shapes and angles, providing efficient manufacturing processes at cost-ef……

how to make a hydraulic press brake

Hydraulic press brakes are machines used for bending metal into specific shapes and angles, providing efficient manufacturing processes at cost-effective rates. They're commonly found in factories across industries.

Before embarking on the task of making your own ram, back gauge and tonnage machine it is crucial to gain an understanding of its operation and components such as the ram, back gauge and tonnage.

Power Source

Hydraulic press brakes are indispensable tools in metal fabrication, used to bend sheet metal into various products ranging from industrial components and art pieces to household goods. Press brake projects must be planned carefully in order for them to succeed; high-grade materials and precision machining techniques should be used as they guarantee a superior end product.

There are various kinds of hydraulic press brakes, but electric models tend to be the most popular due to their flexibility and energy efficiency. Furthermore, electric presses feature fewer moving parts than their hydraulic counterparts making them simpler to repair or maintain. If you are considering an electric press brake for your business consider the following aspects.

When selecting a hydraulic pump for your press brake, it's essential to keep in mind its size and power requirements as well as compatibility with its hydraulic system and anticipated operating pressures.

Select a die made of high-grade material to ensure optimal performance and durability, such as the upper die constructed from high-strength steel for ultimate performance and precision-ground surfaces to facilitate accurate bending. Furthermore, use lubrication on all machinable surfaces in order to reduce heat buildup and enhance surface finish - this can extend tool lifespan as well as lower risks to employees.

Hydraulic System

Hydraulic systems use fluid power to produce motion or force. This energy can be harnessed for great good or great harm; thus making hydraulics a potential hazard that must be managed as with any power source and subject to OSHA's Lockout/Tagout rules.

There are various kinds of hydraulic systems, and each offers unique advantages and disadvantages. A straightforward solution consists of a hydraulic reservoir, pump, pressure relief valve, three-way directional control valve, single acting cylinder and connectors - these components convert mechanical energy into hydraulic oil that is then delivered through the cylinder for use.

The pistons and cylinders are configured to take advantage of Pascal's principle of multiplication, in which force applied to one part of a piston equals force exerted on all other parts. As larger pistons/cylinders increase force transmission to workpiece, so too does its potential.

Press brake cylinders are specially constructed to withstand bending forces that far exceed their own weight, which requires having a very large stroke made from strong materials and regular inspection and maintenance of their hydraulic system. As with all parts of a machine, regular inspection and maintenance must be conducted; otherwise it could result in corrosion of external surfaces and abnormal operation of various components resulting in poor quality machine performance; for this reason a well-designed, high-quality hydraulic system is absolutely crucial to machine quality, while operators must become acquainted with how its operation.


Press brakes use mechanical, hydraulic or pneumatic power devices to move their ram upward and downward to bend sheet metal. A control system determines the amount of force or tonnage available for bending. A programmable back gauge helps position workpiece accurately so as to repeat same bending angle every time, helping minimize machine downtime while producing accurate results.

In order to build your own press brake, it is necessary to select appropriate materials and tools before creating a budget and manufacturing plan. When considering tonnage of the ram, width of bolster plate and frame configuration as well as personal protective equipment costs it is also essential to purchase and store in a ventilated special work area for extended lifespan. Regular inspections will help to keep things working optimally for years.

Hydraulic CNC press brakes are cost-effective machines designed to bend sheet metal into desired forms efficiently and with high accuracy. Easy to use and with high accuracy, these machines can bend sheet metal up to 10 inches thick or form parts up to 20 feet long with accuracy that exceeds 90 percent. Bend angles can also be easily adjusted.

Press brakes are driven by hydraulic pumps, with their ram being guided up and down through dies by means of hydraulic fluid pressure. There are multiple types of hydraulic press brakes: mechanical, hybrid, and electric presses. Mechanical presses use motorized flywheels which give energy to an ascending flywheel spinning continuously - this causes its ram to move up and down through dies before bending the workpiece - the process can be repeated multiple times to produce complex pieces of metalwork.

Guide Rails

Guide rails of a press brake serve two essential purposes during sheet metal bending: they support and align the metal sheet during bending while maintaining perpendicularity of the ram to the working table, as well as supporting its weight during bending process. Commonly mounted on columns and adjustable up/down, more advanced varieties also come equipped with front support arms which can also be raised and lowered, offering users greater safety and stability compared to manual support methods as they bend different thicknesses/sizes of sheets simultaneously.

As when using any machine, it is vitally important that users are aware of how long setup will take and plan accordingly. This will allow for accurate estimations on tonnage and number of axes needed to achieve desired results. Furthermore, operators should have enough familiarity with drawings specifications so as to interpret them accurately and timely.

Another essential step is regularly monitoring the oil level in your tank by looking through a sight glass or according to instructions in its maintenance and operation manual. An inadequate supply can lead to inconsistent operation as well as damage the hydraulic pump or shorten its lifespan, potentially shortening its useful life span.

Filters on cylinder rods must also be regularly cleaned of dirt, dust, and debris to avoid seal damage and leaks, so it is recommended to do this task either prior to major work sessions, or at least weekly. Following cleaning, oil should be applied to prevent further rust and corrosion build-up as well as running your machine without loads or maximum stroke for five minutes in order to release air bubbles within its system.


Press brakes require specific tools in order to successfully complete their tasks. Selecting high-quality punches and dies can have an enormous effect on the final quality of their finished products; so it is imperative that they are used effectively and with great care.

A press brake's go-to tooling solution is the vee die, with its single V-shaped opening designed to bend sheet metal into desired shapes. A good vee die should be constructed from material with high rigidity and toughness such as chromium-molybdenum steel or yasuki steel; additionally, it should be hardened and heat treated appropriately to prevent premature wear while maintaining precision and sharpness.

U- and Z-bender dies can provide more versatility when bending complex shapes; your selection depends on what kind of fabrication project is being completed and any specific bending requirements for each job.

When selecting top and bottom tooling, be sure to consider ram height, tonnage, as well as any bending lengths you will work with. Selecting appropriate tooling can improve quality, decrease downtime and save money.

Maintaining and cleaning your press brake on a regular basis is also key to ensure its smooth running, prolonging its lifespan and lowering maintenance costs. When left neglected for extended periods, dirty or damaged machine parts can lead to poor operation, inaccurate bending, damage to the machine itself, as well as even additional repair bills from professional maintenance personnel who need to replace worn parts and make necessary repairs.

Link to this article: https://www.ihydraulicpress.com/nsn/5141.html

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