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What Is The Minimum Bend Size of The Press Brake

Views: 101     Author: Site Editor     Publish Time: 2025-06-26      Origin: Site

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What Is The Minimum Bend Size of The Press Brake

In this article, I will explore the question: What Is The Minimum Bend Size of The Press Brake. Understanding the minimum bend size of the press brake is crucial for anyone working with press brakes, as it directly affects the quality and precision of our bending operations. I will share my insights on the factors that influence minimum bend sizes, including material type, thickness, and tooling. By the end of this article, you’ll have a clearer understanding of how to determine the minimum bend size for your projects, ensuring optimal results in your fabrication processes.

At HARSLE, a leading manufacturer based in Nanjing, China, we specialize in producing a wide range of metalworking machines, including press brakes, shearing machines, laser cutting machines, hydraulic presses, punching machines, and rolling machines. In this article, we delve into the intricacies of the minimum bend size of the press brake, highlighting why it matters and how HARSLE’s press brakes stand out in the market.

That is to say, the minimum bending size can be folded, the minimum size of the bending die to the master, has not been noticed before, until now, I don’t know the groove width, depending on the model of the device or the thickness of the plate? Or general, there is no such standard, or can give me detailed information

Importance of Minimum Bend Size

The Minimum Bend Size of the Press Brake refers to the smallest radius or angle that the machine can accurately and consistently produce. This parameter is vital for several reasons:

1. Precision: Smaller bend sizes require higher precision to ensure that the metal does not crack or deform undesirably.

2. Material Efficiency: Achieving tight bends minimizes material waste, contributing to cost savings.

3. Design Flexibility: A press brake capable of smaller bends allows for more intricate and versatile designs, expanding the range of possible applications.

4. Quality Assurance: Consistently achieving the minimum bend size ensures that products meet stringent quality standards.

How to Determine the Minimum Bend Size with HARSLE Machines

Determining the Minimum Bend Size of the Press Brake for your specific needs involves several steps:

1. Material Assessment: Analyze the type and thickness of the metal you intend to bend. HARSLE press brakes are versatile and can handle a wide range of materials and thicknesses.

2. Tooling Selection: Choose the appropriate punch and die set from HARSLE’s extensive range to match your bend requirements. Our engineering team can assist in selecting the best tooling for achieving minimal bend sizes.

3. Machine Configuration: Configure the press brake settings, including bending speed, force, and angle, to optimize performance. HARSLE machines come with advanced control systems that allow precise adjustments.

4. Testing and Calibration: Conduct initial tests to ensure that the press brake achieves the desired bend size consistently. Our service team can provide on-site calibration and training to ensure optimal operation.

5. Ongoing Maintenance: Regular maintenance of the press brake ensures that it continues to perform at its best, maintaining the ability to achieve minimal bend sizes over time.

Bend half of the V-groove of the lower die plus 0.5

The V-groove designation is usually expressed in the form of “groove width value +V”. For example, when the width of the V-groove is 5 mm, the V-groove becomes “5V”, generally 4V, 8V, 10V, 12V. Generally, the width of the lower mold V groove used for the folding bed according to the thickness of the sheet is usually 5 times. Material thickness (5T), if 5T-1V is used, the bending coefficient should be increased accordingly. If 5T+1V is used, the bending coefficient should be reduced accordingly.

The minimum fold you can refer to the width of the board or the size of the single side? If the board width is as long as you adjust the appropriate gap, then you can do it small; if you have a single side size, you have to look at the notch. As for the size of the mold design, it is mainly determined according to the pressure of the notch. As long as the strength is enough, it can be appropriately small to facilitate the folding of the small side.

The minimum bending size is determined according to the size and thickness of the V-groove. If the U-shape is to be bent, the width of the V-groove is determined according to the thickness of the plate. Below 3.0 is 4-6 times the thickness of the plate. , 3.0 or more is 8-10 times the thickness of the plate, this is also based on experience to choose the V-groove.

Your question is a bit general, there is no absolute standard. If you press the normal bend, the half of the V-slot plus the half of the material used is the smallest. Of course, we generally choose 5 times the thickness of the V-groove.

Eccentricity, the pressure line is bent, and the small V is folded at a large angle and then pressurized with a large V. It can be folded to a size smaller than half of the V groove. If the pressure is fixed, the gasket can be used to assist the position. The specific size and the machine are not. Close, it is related to the thickness of the lower die. Of course, if the upper die is a circular arc cutter larger than 0.5, the V-groove is generally 5 times thicker, and the company can choose 4-6 times the material thickness. The smaller the fold, the smaller the size will be, and vice versa.

Double cylinder bending machine

Performance and features:

* All-steel welded structure, vibration to eliminate stress, good machine strength and good rigidity. Hydraulically driven, stable and reliable.

* Mechanical stop, torsion axis synchronization, high precision.

* Back gauge distance, upper slider stroke electric adjustment, manual fine adjustment, digital display.

*The upper mold is equipped with a disturbance compensation structure. The machine with 250 tons and the length of 400mm or more can adopt the lower deflection compensation structure.

Three cylinder bending machine

Quality System: IS09001 Mold Material: 42CRMOV

Bending machine mold material: Cr12Molvl, 42CrMo, T10a

Bonfire hardening: HRC: 52°-60°

±Tolerance: .002

Other services: CNC bending mold grinding, grinding, maintenance, etc.

Standard length: 835mm, 800mm, 550mm (standard CNC bending machine products are available from stock, non-standard bending machine mold specifications can be customized processing and production according to customer’s drawings.)

CNC bending parts tool segmentation, the general segmentation specifications are as follows:

Mold segment 1

CNC bending upper die: 100 (left), 10, 15, 20, 40, 50, 200, 300, 100 (right) = 835mm

CNC bending lower die: 10, 15, 20, 40, 50, 100, 200, 400 = 835mm

Mold segment 2

To determine the minimum bend size for your specific application, consider the following formula:

CNC bending upper die: 100 (left), 10, 15, 20, 40, 50, 165, 300, 100 (right) = 800mm

Applicable to: imported LVD CNC excavator, AMADA CNC bending machine, TRUMPF, FINN-POWER and other CNC bending machine tools and domestic CNC bending machine molds, products have CNC bending machine segment differential die, bending machine concentric lower die, Bending machine upper mold, bending machine lower mold, CNC bending machine composite forming mold, etc.

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Six-cylinder bending machine

The machine is hydraulically driven and the slider drive uses three cylinders mounted between the front and rear panels. The rigidity of the whole machine is good, and the upper mold is equipped with a disturbance compensation mechanism.

The middle of the lower die table is equipped with three disturbance compensation cylinders to further improve the working accuracy

Conclusion

Understanding the Minimum Bend Size of the Press Brake is crucial for businesses seeking precision and efficiency in metal fabrication. HARSLE’s press brakes are designed to meet the highest standards, offering the flexibility and performance required by large companies, distributors, and metal fabrication owners. With our commitment to quality, customizable solutions, and professional support, HARSLE is your trusted partner in achieving excellence in metalworking.

Ready to enhance your metal fabrication capabilities with a HARSLE press brake? Visit our official website or connect with us on Alibaba and at international exhibitions to explore our range of products and discover how we can support your business needs.

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