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.

Foam formation is a common issue in the construction sector, particularly in concrete production. When air bubbles are trapped within concrete mixtures, they can compromise the strength, durability, and appearance of the final structure. Excessive foam leads to voids and uneven surfaces, which affect both the mechanical properties and the longevity of concrete. To address these challenges, defoamers have become an essential additive in modern concrete applications.

Rickman defoamer provides a reliable solution for concrete applications, offering strong foam control even under demanding conditions. Its performance is complemented by Rickman’s comprehensive service advantages: a professional technical team ready to provide tailored application guidance, stable global supply channels to ensure timely delivery, and a commitment to customer success through continuous innovation. Choosing Rickman means not only accessing a proven product but also benefiting from a dedicated partner focused on quality and efficiency in every project.

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Below are some features of Lighting Truss:

1. It is stronger to weld bracing on 4 sides than on 2 sides on the market;

2.  High-intensity Lighting Truss Material by adopting national standard high-strength aluminium alloy 6061-T6 and 6082-T6, which are stronger than 6063;

3. High quality welding joints of the trussing: fish-scale solder joints, uniformly solder joints, no black soldering, no missing soldering, and professional quality inspection technicians to monitor the entire production process, and ensure the safety and accuracy of the trusses;

4. The Lighting Truss Surface is polished, and professionally cleaned with potion, and then packaged and shipped;

5. Standard processing of producing lighting truss, and there are professional truss positioning platform molds. The hole positions are accurate, and the installation and disassembly are convenient and fast, and the build effect is very beautiful;

6. The material for the itsctruss lighting truss must be thick enough and never cheating on workmanship and materials so that we can ensure the safety of the truss.

In the paper and pulp industry, water treatment plays a critical role in ensuring smooth operations and maintaining product quality. During production, the process water often generates excessive foam due to the presence of surfactants, fillers, and chemical additives. If not controlled, foam can lead to overflow, pump cavitation, reduced drainage efficiency, and increased maintenance costs. This is where defoamers become an essential solution, helping mills stabilize their systems and achieve greater production efficiency.

In the ink manufacturing and printing industry, foam generation is a common challenge during mixing, grinding, filling, and application. Foam can trap air in the formulation, cause surface defects, and disrupt ink transfer during printing. Whether in water-based, solvent-based, or UV-curable inks, uncontrolled foam can lead to poor print quality, slower production speeds, and increased waste.

In addition to product performance, Rickman provides strong technical support, responsive customer service, and reliable global supply. Our experienced team works closely with ink manufacturers to optimize formulations, conduct performance testing, and ensure consistent results. With Rickman, customers not only gain superior defoaming technology but also a committed partner in enhancing productivity and product excellence.

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In the pulp and paper industry, foam is more than just a visual nuisance—it can slow down production, reduce product quality, and increase operating costs. During processes like pulping, bleaching, and paper machine operations, excessive foam interferes with the smooth flow of slurry, causes overflow, and even impacts sheet formation. This is why many mills rely on effective defoamer solutions to maintain productivity and ensure a consistent product.

Rickman defoamers are designed specifically to meet the challenges of the pulp and paper sector. Our formulations provide rapid foam knockdown, excellent persistence, and minimal impact on other process chemicals. Beyond product performance, Rickman offers comprehensive technical support, helping customers troubleshoot issues, optimize dosage, and adapt solutions to their unique process conditions. With advanced manufacturing capacity and a dedicated R&D team, we ensure consistent quality and reliable supply for partners worldwide.

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In the construction industry, the use of admixtures such as plasticizers, water reducers, and surfactants is essential to improve the performance of concrete, mortar, and other building materials. However, these chemical additives often introduce unwanted air into the mix, forming foam that can compromise the strength, surface finish, and long-term durability of structures. This makes defoamers a critical component in achieving consistent material quality.

Foam in cementitious systems can lead to surface defects, pinholes, and reduced compressive strength. Especially in self-leveling compounds, grouts, and high-performance concrete, entrapped air poses a serious threat to both aesthetics and structural integrity. Effective defoaming ensures smooth flow, optimal density, and improved compaction—all essential for modern construction requirements.

Construction-grade defoamers must be compatible with alkaline environments and exhibit excellent dispersibility in viscous systems. They should not delay setting time or impact curing behavior. Choosing the right defoamer helps not only reduce rework costs but also enhance the final appearance of flooring, precast components, and decorative surfaces.

Rickman defoamers are formulated to address these specific challenges. Our products offer rapid foam suppression, long-term stability, and excellent compatibility with a wide range of cement and gypsum-based systems. Whether for dry-mix mortar production or on-site concrete pouring, Rickman delivers high-performing solutions that reduce air entrainment without compromising the material’s properties.

What sets Rickman apart is not just our product performance—but also our service philosophy. Our team provides expert consultation to recommend the best formulation for your process, supports on-site testing, and ensures consistent supply with fast lead times. With Rickman, you’re not just buying a defoamer—you’re gaining a reliable partner in construction material optimization.

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Foam formation is a common challenge in various water treatment processes, including wastewater treatment, desalination, and industrial effluent management. Whether caused by biological activity, surfactants, or mechanical agitation, excessive foam can hinder oxygen transfer, disrupt sensor readings, and increase the risk of spillage or system inefficiencies. This makes the application of defoamers a vital step in maintaining safe, efficient, and regulation-compliant water treatment operations.

Beyond high-quality formulations, Rickman is committed to customer success through responsive technical support and customized service. Our team works closely with clients to understand specific foam issues and provide tailored solutions—backed by quick sample delivery, robust documentation, and flexible logistics. Whether you're optimizing an existing treatment line or developing a new facility, Rickman ensures a seamless, professional experience from consultation to implementation.

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Foam formation is a persistent issue in the construction materials industry, particularly in the production and application of concrete admixtures, mortar, putty, and gypsum-based systems. The presence of unwanted foam not only reduces the mechanical strength of the final product but also compromises its surface finish, workability, and durability. Addressing this challenge effectively is crucial to ensuring the reliability and quality of construction projects.

Beyond product performance, Rickman stands out through its responsive service and deep technical expertise. With a dedicated team focused on construction solutions, Rickman offers customized recommendations, rapid sampling, and formulation support. Our strong global logistics and reliable supply chain further ensure that customers get the right product, at the right time, for every project stage.

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Boots are a necessity in our daily lives. It can effectively protect our feet. In terms of military and police use, the requirements for military boots will be higher. It will require higher quality and durability than civilian boots. This is related to the production process of boots. The most commonly used technique in the military field is molding.

Today we- China Xinxing Guangzhou Imp&Exp Co., Ltd.  will introduce the molding process of boots.

1.What is the molding process?

The molding process of boots is a common production technology that combines the sole and upper, mainly by heating and pressing the sole material (such as rubber, PU, PVC, etc.) directly vulcanized or bonded to the upper through a mold.

 

2.Basic process flow

Prepare the upper and shoe last: Place the upper over the shoe last to shape it and ensure it fits snugly with the foot.

Mold preheating: The metal mold is preheated to the required vulcanization or melting temperature of the material (usually around 150-160 ° C for rubber).

Insert sole material: Place raw rubber sheets, PU prepolymers, etc. at the bottom of the mold.

Compression molding: Align the shoe upper with the mold, close the mold under high pressure, and form the sole material in hot pressing while firmly bonding with the shoe upper.

Cooling and shaping: Cooling after demolding to complete solidification or vulcanization.

 

Advantage:

No need for additional adhesive, environmentally friendly and durable.

The pattern on the sole can be finely designed through molds (such as anti slip patterns).

Disadvantages:

The cost of customizing molds is high, and small batches are not economical.

High temperature and high pressure may limit certain surface materials (such as heat-resistant fabrics).

If you are interested in military boots. Please contact us promptly:mail@cxxgz.com. We have many product options for other type boots.

Looking forward your inquiry.