Understanding Press Brakes and their Scope

A press brake is a specialized press machine for bending metal plates.It uses two molds, a punch and a die, to sandwich the plate material and bend it to the desired angle, and is mainly suitable for bending thin plates such as steel plates and aluminum plates.Press brakes are used in everyday products such as home appliances and steel furniture, and are also essential machines in advanced industries such as automobiles and aircraft.

4 types of press brakes and mechanisms

 A press brake is divided into a press part that reciprocates up and down, and a part that attaches the receiving mold, and the types of press brakes are divided by drive method.

There are four main types of repairs:

·  Mechanical press brake

·  Hydraulic press brake

·  Servo motor press brake

·  Hybrid press brake

1.Mechanical press brake

A mechanical press brake is a method in which the press part is driven by the rotational movement of a motor.Since the processing speed is fast, it is suitable for bending small parts, but it is also difficult to adjust the pressure and control the speed.

The strengths of mechanical press brakes are as follows.

·  Fast processing speed and high productivity

·  Simple mechanical structure, easy maintenance

On the other hand, mechanical press brakes also have the following weaknesses.

·  Difficult to adjust pressure and control speed, unsuitable for highly accurate bending

·  Low pressing force, unsuitable for bending thick plates

It is used for bending small parts and for bending where accuracy is not very important.

2.Hydraulic press brake

Hydraulic press brake is a method that uses a hydraulic cylinder to drive the press part.This method is currently mainstream because it allows for flexible control of pressure and processing speed.

The strengths of hydraulic press brakes are as follows.

·  High pressure capacity allows for bending of thick plates

·  Multiple identical press brakes can be lined up side by side to bend long materials

On the other hand, hydraulic press brakes also have the following weaknesses.

·  Uses a lot of hydraulic oil and generates a lot of heat, which has a large impact on the environment

·  It is necessary to pay attention to maintenance and failure of hydraulic system

Therefore, it can be said that this technology is especially suitable for mass production.

3.Servo motor press brake

A servo motor press brake is a method that uses a servo motor to drive the press part.It has the great advantage of being environmentally friendly as it does not use hydraulic oil. In addition, it is especially suitable for highly precise bending processes because it allows precise control of pressure and processing speed.

The strengths of servo motor press brakes are as follows.

·  Eco-friendly, as it uses less hydraulic oil and heat

·  Suitable for high-precision bending as pressure and processing speed can be finely adjusted

However, this type of press brake also has some weaknesses.

·  Unsuitable for bending thick plates due to low pressing force

·  Machines are expensive and maintenance is complicated

These characteristics make servo motor press brakes an excellent choice, especially for bending operations that require precision.

4.Hybrid press brake

Hybrid (hydraulic servo) press brakes are an advanced system that combines the advantages of hydraulic and servo motor systems.

The press part is driven by controlling the hydraulic pump with a servo motor.Precise control of machining speed and powerful hydraulic pressure can be achieved at the same time, allowing for high machining accuracy and efficiency.It has an environmentally friendly design, as it uses less hydraulic oil and generates less heat.

The strengths of the hybrid type (hydraulic servo type) press brake are as follows.

·  Combines the powerful pressing force of a hydraulic system with the precise controllability of a servo motor system

·  Improves machining accuracy and productivity, and reduces operating costs due to energy saving effects

However, this method also has some weaknesses.

·  The price of the machine is high as an initial investment

·  Regular maintenance of hydraulic system is required

Hybrid press brakes, which combine the advantages of hydraulic and servomotor systems, are the perfect choice for manufacturers who value high machining accuracy, productivity, and environmental performance.

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