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Choosing the right CNC press brake machine can make a big difference in your production efficiency, bending accuracy, and overall profitability. With so many options on the market—each offering different features, tonnage capacities, and automation levels—it’s easy to feel overwhelmed. This guide will help you understand what really matters when selecting a CNC press brake, so you can make a smart investment that fits your business needs.   I. Core Considerations (Basis for Selection) 1. Processing Requirements Analysis (First ask yourself the question) Material properties Material: Is it mainly low-carbon steel, or stainless steel, aluminum, copper, etc.? The tensile strength of different materials varies, which affects the tonnage calculation. Plate thickness: What is the thickness range of the plates you bend most frequently? For example: 0.5mm - 6mm Sheet size: What are the maximum processing length and width? For example: 3m x 1.5m Product process requirements Bending Angle: Usually 90°. Is it necessary to bend obtuse angles, acute angles or complex shapes? Precision requirements: How high are the tolerance requirements for angles and dimensions? (For example: ±0.5° or ±0.1mm Production batch size: Is it a small batch with multiple varieties or a large batch with a single product? This is related to the demand for the degree of automation. The complexity of the parts: Is it necessary to have complex functions such as multi-axis movement of the rear stopper, winding, and dead edge pressing?   2. Key machine parameters (To pay attention to when reading the equipment manual Nominal pressure (tonnage) : This is the core capability of the bending machine. It must be calculated based on your thickest and hardest material. Simple calculation formula: P = (650 * S² * L)/V P: Required pressure (tons) S: Plate thickness (mm) L: Bending length (m) V: The width of the lower die slot (mm), usually taken as 8 times the thickness of the plate. For example, when bending a 3mm thick and 3-meter-long low-carbon steel plate using a 24mm wide lower die, the required pressure is approximately (650 * 3² * 3) / 24 ≈ 731 tons. Therefore, it is more reliable to choose a machine with a capacity of around 100 tons. It is recommended that the tonnage selected be 20% to 30% higher than the calculated value in case of emergency. The length of the workbench: It determines the maximum length of the sheet that can be bent. Please select based on the maximum size of your product. Common sizes include 2.5m, 3m, 4m, etc. Throat depth: It refers to the depth from the bending line to the inner side of the frame. This determines whether the folded side will hit the machine body when bending "box" type workpieces. The deeper the throat opening, the wider the processing range. Column spacing: The distance between the frames on both sides. The sheet to be bent must be able to be delivered to the rear stopper position through this spacing. This parameter is very important for processing workpieces with bends in the middle, such as "large door frames".   3. Numerical Control System and Automation Configuration (Determining Efficiency and ease of use) Brand of numerical control system International well-known brands: such as Accurl, have stable systems, powerful functions and good operation logic. Selection suggestion: Choose based on the operator's learning cost and budget. Whether the interface is intuitive and whether programming is convenient are important considerations. Y-axis (slider travel control) : The core axis that controls the bending depth (Angle). It is usually an electro-hydraulic servo system. The number of Y-axes determines whether the slider can remain parallel at different positions. For machines with long countertops, at least two Y-axes (one at each end) are required to ensure accuracy, and high-end models may have three or more. X-axis (forward and backward movement of the rear stopper) : Controls the bending position. The travel of the X-axis determines the minimum margin that can be bent. The rear stopper of high-end models is divided into multiple sections, which can avoid the already bent edges. R-axis (rear stopper moving up and down) : It is used to avoid complex workpieces or achieve special processes. Z-axis (left and right movement of the rear stopper) : Usually, the rear stopper beam is divided into two sections, left and right, which can move independently and is used for folding beveled or asymmetrical workpieces. Automated selection and matching (significantly enhancing efficiency) Deflection compensation: When the long table surface is bent, the slider and the table surface will undergo slight deformation due to force, resulting in inaccurate middle angles. The deflection compensation function (hydraulic or mechanical) can automatically counteract this deformation and is a key configuration to ensure the bending accuracy of long workpieces. It is strongly recommended to be equipped with it. Automatic mold changing: For working conditions where mold changes are frequent, it can greatly save preparation time. Robots or automatic loading and unloading: Suitable for large-scale and repetitive production, achieving "unmanned" workshops. Ii. Equipment Type Selection Upward movement type (arch frame type) : The slider moves downward in the upward direction. The mainstream type features good rigidity and high precision, and is suitable for the vast majority of application scenarios. Downward movement type: The worktable moves upward. The body has a low center of gravity, good stability and a small floor area, but the operating space is relatively cramped. Iii. On-site Verification and After-sales Service Sample testing: Be sure to bring your typical products and plates (especially the thickest, longest, and most demanding ones) to the manufacturer or existing customers for on-site testing. Check the accuracy and straightness of the bending Angle. Test the programming convenience of the numerical control system. Feel the noise and vibration when the machine is running. Inspect after-sales service: Ask the manufacturer if there are service outlets in your location, how long the response time is, and whether the supply of spare parts is sufficient. Good after-sales service can greatly reduce downtime losses.   if you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088

When operating a press brake, corner bending is one of the most challenging processes. Compared with straight-line bending, corners place higher demands on precision, tooling, and operator experience. If not handled correctly, several problems may occur that affect both product quality and production efficiency.   1. Angle deviation (inaccurate Angle） Reason: Improper mold selection (such as the V-groove width not matching the material thickness). The excessive opening of the lower die leads to an increase in springback. Insufficient pressure or too fast bending speed. Material properties (such as obvious rebound of stainless steel and high-carbon steel). Solution: Adjust the pressure and compensation Angle (correct the rebound through trial folding). Select an appropriate mold and reduce the bending speed to increase plastic deformation. 2. Bending dimensional error (length or position deviation) Reason: Inaccurate positioning of the back gauge or mechanical wear. The boards are placed unevenly or the reference surfaces are not close together. Programming data input errors (such as bending sequence, size). Solution: Calibrate the rear stopper and check the accuracy of the servo system. Use laser detection or clamp-assisted positioning.   3. The bent line is twisted or uneven The reason is that the burrs on the edge of the sheet were not treated, resulting in uneven stress during bending. Mold wear or misalignment of the upper and lower molds (parallelism deviation). Internal stress of materials (such as unannealed cold-rolled plates). Solution: Deburr and ensure the board is smooth. Adjust the parallelism of the mold and replace it if necessary.   4. Indentations or scratches on the surface of the workpiece Reason: There are impurities or damages on the surface of the mold. The protective film of the material was not removed or the mold was not cleaned adequately. Excessive bending pressure causes metal adhesion. Solution: Clean the mold and use a dedicated polishing mold or PE protective film. Adjust the pressure or switch to a soft mold (such as polyurethane).   5. Springback Reason: The material has a high elastic modulus (such as aluminum and stainless steel). The bending radius is too large or the Angle is too small. Solution: Adopt the compensation method (excessive bending). Use a mold with correction function or add a flattening step.   6. Bending cracks or fractures Reason: Poor ductility of the material (such as hard aluminum alloy, high carbon steel). The bending direction is parallel to the rolling direction of the material. The bending radius is too small (lower than the minimum bending radius). Solution: Increase the bending radius or anneal the material. Adjust the bending direction (perpendicular to the rolling direction).   7. Damage to equipment or molds Reason: Overloading bending (such as thickness exceeding the die's load-bearing range). The mold collided or was not fixed correctly. Solution: Operate strictly in accordance with the equipment tonnage and mold specifications. Regularly check the tightness of the mold.   8. Cumulative error of multiple bends Reason: Multiple positioning causes the reference to shift. The bending sequence is unreasonable (for example, bending at a large Angle first and then interfering with a small Angle). Solution: Optimize the bending sequence (from inside to outside, from complex to simple). Use multi-axis rear stoppers or robot-assisted positioning.   9. Warping or deformation of the sheet Reason: Uneven distribution of bending force (such as no support in the middle of long plates). Release of residual stress in materials. Solution: Add support blocks or bend in multiple steps. Select the material after stress release. 10. Operational safety issues Risk: Hand pinching (near the mold area). The sheet rebounds or slips off. Protection: Use safety devices such as gratings and two-hand start buttons. Train operators to standardize procedures.   If you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088

1.Supply of raw materials and core components Key link Metal materials Sheet metal raw materials such as steel plates and aluminum alloys. Value-added point: The strength and ductility of the material directly affect the bending accuracy and the service life of the mold. Core components Hydraulic/servo system → Determines the power and energy efficiency of the machine. The CNC control system → affects programming flexibility and operational accuracy. Tooling (Wila, Rocca) → Specialized tooling (such as V-type, R-type) to meet complex bending requirements. Challenge High-end hydraulic systems and CNC controllers rely on imports (Chinese manufacturers are accelerating domestic substitution). 2. Design and manufacturing Key link Mechanical structure design The rigidity of the frame and the accuracy of the guide rails affect long-term stability. Value-added point: Finite element analysis (FEA) optimizes the structure and reduces deformation. Intelligent function integration Laser Angle detection, AI rebound compensation. Value-added points: Reduce trial-and-error costs and increase the first-article pass rate. Cost distribution Mechanical structure (40%), control system (30%), hydraulic/servo system (20%), others (10%).   3. Distribution and after-sales service Key link Sales channels Direct selling (high-end brands such as TRUMPF), agents (emerging markets), online platforms. Value-added points: Offer trial use and technical training (such as operation courses of the Delem control system).   After-sales service Remote diagnosis (IoT modules), rapid spare parts supply (molds, hydraulic valves). Value-added point: Service contracts (annual fee system) contribute 20-30% of the manufacturer's profits. Regional differences The European and American markets prefer all-inclusive services, while the Asian market pays more attention to cost performance and response speed.   4. Terminal Applications and User Value Main application fields Sheet metal processing: chassis, cabinets (batch consistency required). Automobile manufacturing: Body structural components (high-precision requirements). Aerospace: Lightweight components (special material bending). Core user demands Small-batch production: Quick mold change. Mass automation: Robot integration.   5. Auxiliary value chain links Software and digital tools Offline programming software (Radan, AutoPOL) → Reduce machine idle time. Simulation (such as AutoForm) → Predict material rebound and optimize processes. Third-party service provider Mold customization (local small manufacturers meet non-standard requirements). Technical training (community colleges, manufacturer certification courses). The trend of value chain optimization Upstream integration Leading manufacturers develop their own control systems to reduce external reliance. Downstream expansion Provide "Bending-as-a-Service" and charge based on the duration of use. Green value chain Electric servo bending machines (such as Salvagnini P4) replace hydraulic models, reducing energy consumption by over 30%. Summary： In the value chain of CNC Press Brake: High-profit zone: Control system design, intelligent software, after-sales service. Bottleneck links: Localization of core components (Chinese manufacturers are making breakthroughs), shortage of skilled operators. Future opportunities： Leasing model (lowering the entry threshold for small and medium-sized enterprises). AI+IoT enables predictive maintenance (such as predicting hydraulic failures through vibration data). By optimizing the value chain, manufacturers can transform from "equipment suppliers" to "solution providers" and gain higher added value   If you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088

1. Market Trends and Technological Development of CNC Bending Machines Market size and growth: The global CNC bending machine market was valued at approximately 6.2 billion US dollars in 2023 and is projected to reach 4 billion US dollars by 2030, with a compound annual growth rate of 7.5%. The Asia-Pacific region (especially China and India) is the fastest-growing market, accounting for 42% of the share. The main driving factors include the demand for manufacturing automation and the reliance of the automotive and aerospace industries on precision metal forming. Technology classification: Hydraulic type (accounting for 70% of the market share) remains the mainstream, but electric type has become the fastest-growing segment due to its high energy efficiency and high degree of automation. Multi-axis CNC technology and automatic tool changing technology are the future development directions. Regional application: North America and Europe are dominated by high-end manufacturing in the market, while the Asia-Pacific region is experiencing rapid growth in demand for industrialization and infrastructure investment. 2. Product Review and Technical Guide Technical analysis of hydraulic bending machines: For instance, the WC67K-125T model of hydraulic bending machine, its servo system can save 50% to 70% of electricity, support multi-language interfaces and real-time parameter adjustment, and extend the equipment's service life to 15 years. The product labels include CNC Press Brake Die, Multi V Die, etc. Key performance indicators: Accuracy, stability (using integrated oil circuit blocks and core components from Japan/Taiwan), noise control (below 60 decibels), and ease of maintenance (automatic fault diagnosis system) are the key concerns of users. 3. Industry Applications and case studies Automotive and aerospace: The automotive industry accounts for 40% of the application of CNC bending machines, which are used to produce chassis and body structural components. The aerospace field relies on it to manufacture lightweight and high-precision components (such as aircraft skins). Composite trailer manufacturing case: The PreSet Plus® aluminum alloy wheel ends of Kangmei are combined with Kraft all-composite tank trailers. Through lightweight design, the load-bearing capacity and fuel efficiency are enhanced, demonstrating the application of bending machines in the production of supporting components. 4. Procurement and Supply Chain Strategy Export data and purchasing trends: Taking a certain enterprise in Ma 'anshan as an example, its CNC bending machine molds (HS code 84669390) are mainly exported to India, and the product labels cover CNC Press Brake Die, V Die, etc. Purchasers pay attention to the price (with a single transaction amount ranging from 3,188 to 12,116 US dollars), the delivery cycle and the qualifications of suppliers. 5. Maintenance and Troubleshooting Guide Common issues and solutions: such as drive shaft balance, maintenance and replacement techniques (the topic direction of the drive shaft maintenance blog mentioned in Web page 1 can be extended to the maintenance of bending machines), as well as the application of the reverse stop function of the FORMSPRAG braking system in conveying equipment. Technical document acquisition: Search for foreign language literature through CNKI, Baidu Scholar or professional journals (such as "Nature Communications"), or contact industry experts through Research Gate to obtain technical materials. 6. Industry standards and regulations Compliance requirements: Regulations such as the EU CE certification and the US FCC declaration affect product design (for example, AI-generated content mentioned in Web page 4 needs to be marked with compliance keywords). Electric bending machines need to meet energy efficiency standards, while hydraulic types need to meet environmental protection requirements. Safety standards: Such as the specifications for mechanical safety in ISO 12100, ensure that the operation protection system of the bending machine complies with international standards.   If you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088

1. Decreased Productivity: If you find that your old press brake machine is no longer able to meet your production demands and you're experiencing decreased productivity, it may be time to upgrade. Newer machines often feature advanced automation, faster cycle times, and improved accuracy, all of which can significantly increase productivity. 2. Outdated Technology: As technology advances, older press brake machines may become outdated. Newer machines are equipped with the latest features and capabilities, such as CNC controls, touch screen interfaces, and advanced software integration. Upgrading to a machine with more advanced technology can improve your workflow, programming capabilities, and overall efficiency. 3. High Maintenance and Repair Costs: If you find that you're frequently spending money on maintenance and expensive repairs for your old press brake machine, it might be more cost-effective to invest in a new one. Newer machines are often more reliable and require less frequent maintenance, reducing downtime and repair costs. 4. Safety Concerns: Safety should be a top priority in any manufacturing environment. Older press brake machines may lack the safety features and modern safeguards found in newer models. Investing in a machine with advanced safety features, such as laser guards, light curtains, or dual palm controls, can help protect your operators and ensure compliance with safety regulations. 5. Limited Functionality: If your current press brake machine is unable to perform certain bending applications or lacks the necessary features for your evolving production needs, it may be time to consider an upgrade. Newer machines often offer a wider range of bending capabilities, such as multi-axis backgauge systems, automatic tool changers, and adaptive bending technologies, allowing you to tackle complex jobs with ease. Ultimately, the decision to upgrade your old press brake machine will depend on your specific requirements, budget, and long-term goals. Consulting with industry experts and evaluating the benefits of newer technology can help you determine if upgrading is the right choice for your business. If you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088

The bending machine is the most expensive to install. Analytical sketch The operator must be fully familiar with its components. If the part has already been manufactured, it may not be necessary to modify the design, but ultimately the operator must understand that: Material type and density. Flange dimensions and tolerances. Necessary Angle and Angle tolerances. Angle inside the arc. Blank size. In the absence of any of these data, supervisors will need to make educated assumptions. The part is now at risk of being inaccurate. An important initial step is to obtain detailed drawings.   Tool selection The sketch is used to select the tool. There are several options for you to choose from: air bending, bottom bending, coinage or custom use. For example, if the layout requires a bottom tool and the internal arc length is equal to the metal density. For that particular type of machine, you should use a tool with at least the same precision as the tool manufacturer recommends. No matter how accurately the bending machine is installed, worn equipment will not produce the right product.   Calculated tonnage It should be easy for the operator to estimate the tonnage required. Regarding air bending, there seem to be tonnage charts available. A reasonable calculation for bottom bending is nearly three times the air bending tonnage. Stamping requires about eight times the bending tonnage of air. The supplier will provide tonnage estimates for custom application tools. Do not attempt to bend until you have determined the tonnage required and compared it to the tonnage provided.   Select a bending machine If you have only one press in your workshop, you can skip this step. If you have more than one press, make sure that the press you choose is best for the task at hand. The center of the press has a tonnage per inch limit. Multiply the length of the side panels by 0.6 to find the tonnage per inch of the press, then start dividing your estimate by the tonnage of the machine. For items 12 inches wide, the maximum tonnage of the machine center should not be higher than 25 tons. 25 tons over 12 inches will produce compression overload. This is a bad decision because it could permanently damage the ram. When using tonnage control (manual and CNC), be sure to use only the amount required for the torsion parts and do not exceed the tonnage threshold in the middle. Also, keep in mind that overload of the bender is only allowed when the bottom is compacted, cast, or air bent with dedicated tools. Select tool location If the required tonnage exceeds the concentrated weight limit at the center of the system, you may be able to complete the task off-center. However, you should first verify that the bender supplier allows eccentric loading to proceed. Eccentric work is acceptable as long as you follow the manufacturer's guidelines. If you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088