With the continuous improvement of industrial automation, more and more manufacturers choose to buy sheet metal equipment (such as CNC press brake machine and CNC shearing machine) with an automatic intelligent CNC system.
Different CNC systems are suitable for the production of different standard products, and the price difference is also very large.
Therefore, for manufacturers, the correct choice of CNC system can effectively help the mass production of products.
This article will mainly take the press brake (hydraulic bending machine) as an example to briefly introduce the dedicated CNC system for the press brake machine, and help the manufacturer who needs to purchase the CNC press brake to have a preliminary understanding of the CNC system.
Related reading: Press Brake Buyer’s Guide
The numerical control system can be divided into:
- NC- Numerical Control
- CNC- Computer Number Control.
In the CNC system of the bending machine, the digital control generally means that when the system is produced, the manufacturer has programmed the program, and the purchaser cannot modify the programmed program.
Computer numerical control means that the purchaser can edit the program according to the actual operational requirements before bending, and can make any modifications to the program.
Computer numerical control systems are extremely convenient compared to digital control systems.
In short, the NC digital control system is the first generation of the CNC system, and the CNC computer numerical control system is an upgraded version of the CNC system.
As an upgraded version of the system, it has more advantages.
(1) The computer numerical control system is based on the computer operating system, which is easy to operate and does not require skilled workers to operate.
In addition, the operating system is easy to learn, and after simple training, workers can get on the job quickly.
The digital control system is highly demanding for the operator, requiring the worker to understand every function of the machine and to operate the machine in an accurate manner.
(2) In the CNC system of the numerical control bending machine, multiple programming can be performed, and the system has a storage function.
The larger the system storage capacity, the more programs the machine can store.
Take the ESA S500 series controller used on the CNC bending machine as an example.
20GB of hard disk space can store at least 2 million programs, and 256M U disk can store at least 50,000 programs.
Each program can contain hundreds of bending steps.
If the manufacturer needs to fold a variety of different specifications or workpieces with complex manufacturing processes, it is better to choose a computer numerical control system to complete the batch production in the shortest time.
Digital control systems do not have storage capabilities.
(3) The workpieces bent by the bending machine with the computer numerical control system have better quality and higher precision, which cannot be achieved by the bending machine using the digital control system.
(4) The convenient operating system of computerized numerical control system’s allows workers to operate for shorter periods of time and can work 24 hours a day.
In contrast, CNC bending machines with CNC controller have more advantages.
However, computer numerical control systems are more expensive, so the price of CNC bending machines is generally more expensive than NC bending machines.
The value of the CNC numerical control system is much higher than that of the NC digital control system if it is considered in terms of production efficiency.
Moreover, with the increasingly fierce competition in the global market, shaped workpieces emerge one after another, requiring machines to produce workpieces that meet the diverse needs of customers with high efficiency, high precision, and high standards.
The advantages of the computer numerical controlled press brake are also increasingly prominent, and it is increasingly able to cater to the ever-changing market demand, which is the trend of the future.
Regarding how to choose press brake between NC type and CNC type, you can read this post to learn the details.
Related reading: How To Choose Hydraulic Press Brake （NC vs CNC）