CNC press brake is an important equipment in sheet metal processing, and its working accuracy directly affects the bending accuracy of the workpiece. Why add a compensation system to the CNC press brake during the workpiece bending process, as the maximum force is exerted on both ends of the slider and the reaction force during sheet bending causes concave deformation on the lower surface of the slider.

Why does the CNC press brake need to add a compensation system

In order to eliminate the adverse effects of slider deformation, it is necessary to compensate for the deflection deformation of the slider. The usual compensation methods include hydraulic compensation and mechanical compensation, both of which generate upward elastic deformation in the middle of the Compensation workbench to offset the deformation of the machine tool slider, ensure the accuracy of the machining joint surface, and improve the accuracy of the workpiece. At present, major foreign machine tool manufacturers use mechanical compensation devices; Domestic manufacturers will choose appropriate compensation methods based on the actual situation.

Introduction to Two Compensation Methods

Hydraulic compensation method

The hydraulic automatic deflection compensation mechanism of the worktable is composed of a set of oil cylinders installed in the lower worktable. The position and size of each compensation cylinder are designed based on the deflection compensation curve of the slider and the finite element analysis of the worktable. Hydraulic compensation is achieved through the relative displacement between the front, middle, and rear three vertical plates to compensate for the protrusion of the neutral plate. Its principle is to achieve protrusion through the elastic deformation of the steel plate itself, So its compensation amount can be adjusted within the elastic range of the workbench.

Mechanical compensation method

Mechanical compensation is composed of a set of convex wedge blocks with inclined surfaces, each of which is designed based on the deflection curve of the slider and worktable finite element analysis. The CNC system calculates the required compensation amount based on the magnitude of the load force during the bending of the workpiece (which will cause deflection deformation of the slider and worktable vertical plate), automatically controls the relative movement of the protruding wedge block, and effectively compensates for the deflection deformation caused by the slider and worktable vertical plate. The ideal bending workpiece mechanical deflection compensation is achieved by controlling the position to achieve "pre protrusion", A set of wedges forms a curve in the length direction of the workbench that matches the actual deflection, ensuring that the gap between the upper and lower molds is consistent during bending, and ensuring that the angle of the bent workpiece in the length direction is consistent.

Comparison of Two Compensation Methods

The advantages of hydraulic compensation:

As time goes by, hydraulic compensation does not have any wear issues, while mechanical compensation screws, wedge-shaped blocks, etc. will experience wear over time.

Hydraulic compensation takes up less space, while mechanical compensation takes up more free space in both height and width directions.

When using hydraulic compensation, the plate cannot be displaced because the lower workbench is in contact with the ground of the bent plate as a whole, and the positioning of the stop finger is very stable when it contacts the "clamping point" of the plate horizontally. Mechanical compensation only takes effect after bending, and there is a possibility of unpredictable errors.

Hydraulic compensation can also be adjusted when the workpiece is not removed, which is impossible in mechanical compensation.

The advantages of mechanical compensation:

Mechanical compensation has long-lasting stability and reduces the difficulty and frequency of hydraulic compensation maintenance (such as oil leakage caused by seal ring damage), and is maintenance free during the service life of the machine tool.

Mechanical compensation, due to the large number of compensation points, can achieve precise deflection compensation throughout the entire length of the workbench, making it easier for the press brake to achieve linear compensation when bending workpieces during operation, and improving the bending effect of workpieces.

Mechanical compensation is the use of a potential ruler to measure the position of the return signal, which serves as a CNC axis to achieve digital control and make the compensation value more accurate.

Problems encountered when using CNC press brake

When we use the CNC press brake to work, there is a high possibility of some error problems. At this time, we need to pay attention and check immediately if there are any problems. The first step of inspection is to check if there is any wear or damage to the mold currently used by the press brake. If this is the cause of the error, then replace the mold.

However, during the inspection process, if no damage is found, the second step is to check the balance between the slider and the workbench. If the site cannot meet the usage requirements, adjustments must be made according to relevant standards to ensure that this parallelism can be maintained within the standard range.

If there is still a certain degree of error in the angle of the workpiece, it may not be due to the mold or parallelism, but it may be due to the hydraulic system of the equipment, where the balance mechanism does not ensure that the pressure oil evenly enters the left and right cylinders, and adjustment is needed.

At this point, it is necessary to adjust the working mode of the press brake to the "jog adjustment" state. Remove the mold or other accessories from the equipment, so that the slider can stay on the mechanical block. Then, adjust the pressure gauge correctly by compressing the dial gauge head of the press brake by 3-4 millimeters, stepping on the foot pedal to increase the system pressure. When the press brake system is pressurized or unloaded, Check the clockwise deviation of the dial gauge. If it reaches the specified value, the operation can be stopped. Of course, in addition to the above methods, it should be emphasized that the press brake must be well maintained to maximize its advantages in use.

When selecting a press brake tooling, the following factors need to be considered:

1. Material type: It is very important to determine the type of material you will be bending. Different materials require different types of molds to complete bending operations. Common materials include steel plates, aluminum plates, stainless steel plates, etc. Ensure that the selected mold is suitable for the type of material you want to handle.

2. Bending angle and radius: Determine the bending angle and radius you need to achieve. Different molds have different curve shapes and bending angle limitations. Ensure that the selected mold meets your specific needs.

3. Mold quality: The quality of the mold directly affects the bending results and the service life of the mold. Choosing high-quality molds can improve work efficiency and reduce mold wear.

4. Manufacturer reputation: It is very important to choose a reputable mold supplier or manufacturer. They can provide high-quality molds and good after-sales service.

5. Cost: The price of the mold is another factor to consider. Choose suitable and cost-effective molds within the budget range.

Before making a purchase, it is best to communicate with the mold supplier or manufacturer, inform them of your needs, and seek their advice. In addition, you can visit some mold exhibitions or related industry forums to learn about the latest developments and technological trends in the market, to help you make wiser choices. Cngolin is a professional press brake tooling manufacturer,get more details from us quickly!

When it comes to roofing projects, selecting the right coil nails is crucial for ensuring durability and stability. With so many options available, it can be challenging to determine which coil nails are the best for your specific needs. In this guide, we’ll walk you through the key factors to consider when choosing the best coil nails for roofing, helping you make an informed decision.

Understanding Coil Nails

Coil nails are a popular choice for roofing due to their efficiency and ease of use. These nails are arranged in coils, allowing for quick and continuous nailing, which is essential for large-scale roofing projects. The best coil nails for roofing are designed to provide strong holding power and resistance to weather conditions.

Key Factors to Consider

Material: The material of the coil nails plays a significant role in their performance. For roofing, galvanized steel coil nails are highly recommended. They offer excellent corrosion resistance, ensuring that your roof remains intact even in harsh weather conditions.

Length and Gauge: The length and gauge of the coil nails are critical factors to consider. For roofing, nails that are 1 1/4 to 2 inches long and have a gauge of 0.120 to 0.131 are typically the best choice. These dimensions provide the necessary holding power without damaging the roofing material.

Coating: The coating on the coil nails can enhance their durability. Look for nails with a hot-dipped galvanized coating, as this provides superior protection against rust and corrosion. This is especially important for roofing, where exposure to moisture is inevitable.

Shank Type: The shank type of the coil nails affects their holding power. For roofing, ring shank nails are often considered the best coil nails. The rings on the shank provide additional grip, preventing the nails from loosening over time.

Compatibility with Nail Gun: Ensure that the coil nails you choose are compatible with your nail gun. Using the wrong type of nails can lead to jamming and inefficient nailing, which can slow down your roofing project.

Top Picks for the Best Coil Nails for Roofing

Galvanized Steel Coil Nails: These nails are a top choice for roofing due to their excellent corrosion resistance and durability. They are available in various lengths and gauges, making them suitable for different roofing materials.

Stainless Steel Coil Nails: If you’re looking for the best coil nails for roofing in coastal areas, stainless steel nails are an excellent option. They offer superior resistance to saltwater corrosion, ensuring the longevity of your roof.

Copper Coil Nails: For a more aesthetic appeal, copper coil nails are a great choice. They are not only durable but also add a unique look to your roofing project.

Why Choose Our Coil Nails?

At Hongfeng Metalware, we specialize in providing high-quality coil nails that meet the demands of various roofing projects. Our coil nails are crafted with precision and high-grade materials, ensuring exceptional durability and corrosion resistance. Whether you need galvanized steel, stainless steel, or copper coil nails, we have the perfect solution for your roofing needs.

Our coil nails are designed to offer:

Superior Holding Power: With ring shank designs, our nails provide a strong grip, preventing loosening over time.

Corrosion Resistance: Our hot-dipped galvanized and stainless steel nails are built to withstand harsh weather conditions.

Versatility: Suitable for various roofing materials and compatible with most nail guns, our coil nails ensure efficient and reliable performance.

When it comes to construction projects, choosing the right fasteners is crucial for ensuring the durability and stability of your structures. Coil nails have become a popular choice among professionals due to their numerous advantages. In this blog post, we’ll explore the top 5 benefits of using coil nails for construction, helping you understand why they are the preferred option for many builders.

1. Efficiency and Speed

One of the primary benefits of coil nails is their efficiency and speed. Coil nails are collated in a coil, allowing for continuous nailing without the need to reload frequently. This feature significantly speeds up the construction process, making it ideal for large-scale projects. With coil nails, you can complete your tasks faster and more efficiently, saving both time and labor costs.

2. Strong Holding Power

Coil nails are known for their strong holding power, which is essential for construction projects. The design of coil nails, especially those with ring shanks, provides superior grip and prevents the nails from loosening over time. This ensures that your structures remain stable and secure, even under heavy loads and adverse weather conditions.

3. Versatility

Coil nails are incredibly versatile and can be used for various construction applications. Whether you’re working on framing, roofing, siding, or decking, coil nails are suitable for different materials and surfaces. This versatility makes them a valuable addition to any builder’s toolkit, allowing you to tackle a wide range of projects with ease.

4. Durability and Corrosion Resistance

Durability is a key factor in construction, and coil nails excel in this area. Many coil nails, such as those made from galvanized or stainless steel, offer excellent corrosion resistance. This is particularly important for outdoor projects where exposure to moisture and harsh weather conditions is inevitable. Using coil nails ensures that your structures remain intact and rust-free for years to come.

5. Cost-Effectiveness

While coil nails may have a higher upfront cost compared to traditional nails, their long-term benefits make them a cost-effective choice. The efficiency, durability, and strong holding power of coil nails reduce the need for frequent repairs and replacements. This translates to lower maintenance costs and a longer lifespan for your construction projects, providing excellent value for your investment.

Why Choose Our Coil Nails?

At Hongfeng Metalware, we specialize in providing high-quality coil nails that meet the demands of various construction projects. Our coil nails are crafted with precision and high-grade materials, ensuring exceptional durability and corrosion resistance. Whether you need galvanized steel, stainless steel, or copper coil nails, we have the perfect solution for your construction needs.

Our coil nails offer:

Superior Holding Power: With ring shank designs, our nails provide a strong grip, preventing loosening over time.

Corrosion Resistance: Our hot-dipped galvanized and stainless steel nails are built to withstand harsh weather conditions.

Versatility: Suitable for various construction materials and compatible with most nail guns, our coil nails ensure efficient and reliable performance.

Choosing the right circular saw blade for your cutting needs involves considering various factors, including the number of teeth on the blade. The decision between more or fewer teeth on a circular saw blade, such as the Metal Saw Cutter or Toothed Round Cutter, depends largely on the material you're cutting and the desired cut quality.

Understanding Tooth Count:

Circular saw blades come with different tooth configurations, typically ranging from fewer teeth (for faster, rough cuts) to more teeth (for smoother, precise cuts). HSS Slitting Blade are commonly used in metalworking applications, each designed to optimize cutting performance based on the material's hardness and thickness.

When to Use More Teeth:

1. Precision Cutting: Blades with more teeth are ideal for materials like metals, where a clean, precise cut is crucial. HSS Slitting Blade with higher tooth counts produce smoother edges, minimizing the need for secondary finishing.

2. Thin Materials:When cutting thin materials, more teeth help distribute cutting force evenly, reducing the risk of material distortion or burrs. This is particularly useful in applications requiring high accuracy.

When to Use Fewer Teeth:

1. Faster Cutting:Blades with fewer teeth are suitable for rough cuts or thick materials, where speed is prioritized over finish quality. These blades remove material quickly but may leave rougher edges.

2. Less Heat Buildup:In some applications, fewer teeth can reduce heat buildup during cutting, prolonging blade life and improving overall efficiency, especially in high-volume operations.

Choosing the Right Blade:

Consider the following factors when selecting a circular saw blade:

Material Type:Different materials require specific tooth configurations for optimal performance.
Cutting Speed:Balance between speed and finish quality based on project requirements.
Blade Maintenance:Regular maintenance and blade sharpening ensure consistent performance and longevity.


By carefully selecting between more or fewer teeth on your circular saw blade, you can enhance cutting precision, improve efficiency, and achieve superior results in your metalworking projects.

There are various types of sliding door hardware kits available in the market to suit different requirements and design preferences.

Top-mount sliding door hardware kit

This type of kit features a track mounted on the top of the door frame, allowing the door to slide smoothly along the track. It is commonly for heavier doors and offers excellent stability and weight-bearing capacity.

Bottom-mount sliding door hardware kit

Bottom-mount sliding door hardware kit is designed with a track that is installed on the floor, providing support for the door to glide smoothly. It is often used for lighter doors or applications where a sleek and minimalist appearance is desired.

Wall-mount sliding door hardware kit

Wall-mount sliding door hardware kit is fixed to the wall adjacent to the door opening, allowing the door to slide horizontally along the wall. It is ideal for spaces with limited ceiling or floor space and provides a modern and space-saving solution.

Bypass sliding door hardware kit

Bypass sliding door hardware kit is specifically designed for sliding doors that overlap each other when opened or closed. It allows multiple doors to slide past one another, making it suitable for closets, wardrobes, or rooms where space efficiency is crucial.

Barn door sliding hardware kit

Inspired by traditional barn doors, Barn door sliding hardware kit features a rustic and stylish design. It typically includes a track, hangers, and other necessary components for hanging the door. It adds a unique and aesthetic appeal to any space.

These different types of sliding door hardware kits provide flexibility in terms of installation, functionality, and design options. They facilitate smooth and effortless sliding motion, enhancing the overall convenience and visual appeal of sliding doors in various residential and commercial applications. We are professional sliding door hardware manufacturer, get more details from https://www.shrjrov.com.