CNC press brake machine

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

What are the application scenarios of CNC Press Brake Machine?   1.Metal Fabrication & Sheet Metal Chassis/cabinet manufacturing: such as electrical control cabinets, server cabinets, industrial equipment enclosures, etc. Ventilation ducts (HVAC) : Used for sheet metal bending of air conditioning ducts, smoke exhaust ducts, etc. Metal doors and Windows/curtain walls: Precise bending of aluminum alloy or stainless steel frames for construction.   2. Automotive & Transportation Body components: door brackets, chassis structural parts, exhaust pipes, etc. New energy vehicle battery box: Lightweight bending of high-strength aluminum plates. Rail transit components: Metal decorative panels or structural parts for high-speed rail/metro carriages.   3. Aerospace Aircraft structural components: wing ribs, bulkhead brackets and other high-strength alloy parts. Engine components: Complex multi-angle bending of high-temperature resistant metals. Precision forming of titanium alloy or composite materials for spacecraft casings.   4. Electronics & Appliances Electronic product casings: metal bases for laptops, panels for smart home devices. Internal brackets for electrical appliances: compressor brackets for refrigerators, metal inner linings for microwave ovens. Heat sink: High-density fins are bent to optimize heat dissipation performance.   5. Energy & Power Solar bracket: Batch bending of photovoltaic panel support structures. Transformer box: The metal casing of large power equipment. Nuclear power equipment: Safe forming of corrosion-resistant stainless steel components.   6. Industrial Machinery Agricultural machinery: Sheet metal covers for harvesters, tractor parts. Construction machinery: excavator cab frame, hydraulic pipe fittings. Food machinery: Stainless steel conveyor belt brackets, sanitary-grade containers.   7. Medical Equipment Surgical instruments: Precise bending of stainless steel forceps and tweezers. Medical bed/trolley: Cleaning and bending of antibacterial metal frames. Imaging equipment housing: Protective covers for MRI or CT scanners.   8. Architecture & Decoration Metal artworks: Creative bending of sculptures and decorative lines. Parametric design and processing of special-shaped aluminum plates for building curtain walls. Furniture design: Personalized forming of modern metal tables and chairs.   9. Defense & Military Armored vehicle components: Special Angle bending of bulletproof steel plates. Weapon stand: High-stability metal structure processing. Drone frame: Lightweight aluminum alloy fuselage formed.   If you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088

I. Mechanical Injuries (the most common and diverse forms) The upper and lower dies squeeze and hurt the hand Dangerous scenario: When positioning or picking up and placing small workpieces after adjustment, if the hand accidentally enters the closed area of the mold (there is a risk of cutting if the stroke is ≥10mm). Typical case: Improper gesture when bending small parts (Figure 2), the finger was caught between the upper die and the workpiece, resulting in a comminuted fracture. Protection: Mandatory use of photoelectric protection devices (light curtains), automatic shutdown when hands enter the hazardous area. Physical isolation barriers are installed in the mold area. 2. Workpiece impact and dropping Risk of double-person operation: When bending large items, they need to be lifted in coordination. If the workpiece becomes unstable and falls, it may hit the foot or head (Figure 1). The burrs on the edge scratched the arm. Material stacking risk: The workpiece to be processed is stacked too high and overturns, or is scratched by sharp corners when turned around. Protection: Heavy items require hoisting equipment. Wear anti-crush shoes and safety helmets; The workpiece is reprocessed after deburring. 3. Accidents during mold loading and unloading Loose fastening bolts of the upper mold cause the mold to fall, or the lower mold is not padded with support wood, resulting in a rolling accident. Protection: Operate strictly after locking the machine (LOTO program); Anti-fall brackets are designed in the mold installation area. Ii. Electrical Injuries (with the highest fatality rate) 1. Electrical leakage caused by illegal renovation Non-standard circuit modification (such as direct connection of the neutral wire to the PE terminal) causes the equipment casing to carry a 220V voltage, significantly increasing the risk of electric shock. Protection: Comply with the national standard "single power connection" principle; A third-party electrical safety certification is required after the renovation. 2. Aging of circuits and short circuits Cable damage and negative pressure ventilation in the electrical cabinet drawing in cutting fluid/dust (as shown in the illustration) can cause an internal short circuit or fire in the electrical cabinet. Protection: The protection grade of the electrical cabinet is ≥IP54; Inspect the insulation condition of the lines every day; Leakage protection devices should be installed for wet zone operations. 3. Grounding failure of the equipment Poor grounding causes the metal frame to become electrified. During the rainy season or in damp workshops, it is easy to form an electric shock circuit. Protection: Test the grounding resistance (≤4Ω) weekly; Insulating rubber pads are laid on the operation console.   Iii. Parameter Errors and Mold Out-of-control 1. The pressure setting exceeds the limit The pressure suddenly increased beyond the limit value of the mold (such as setting a 300T parameter for a 200T press), causing the mold to crack and fragments to fly. Protection: Hierarchical management of parameter permissions; The system has a built-in pressure-mold matching database. 2. Overheating of the mold and lack of maintenance Continuous bending of thick stainless steel plates causes the mold temperature to rise by more than 150℃, and the annealing deformation of the material leads to mold jamming. Protection: Early warning by mold temperature control sensor; Cool and lubricate every 2 hours.   Iv. Human and Environmental Factors 1. Collaboration failure The foot switch operated by two people is not synchronized: When one person steps on it, the other is still adjusting the workpiece, causing the workpiece to shift and injure the lower jaw (Figure 3). Protection: Enable the "Double Confirmation" startup program (two people press keys simultaneously); Train collaborative gesture commands. 2. Fatigue and distraction When working in consecutive shifts for more than 4 hours, the rate of accidental button touches increases by 40%. Wearing gloves when handling small items makes it easy to get caught in. Protection: Mandatory rotational rest every 90 minutes; Do not use gloves when bending small items. 3. Environmental hazards After slipping due to the oil stains on the ground, my hand fell into the mold area. Insufficient light misjudges the positioning of the workpiece. Protection: 5S management (especially immediate cleaning of oil stains); The illuminance in the operation area is ≥300 lux. Summary： The safety of bending machines requires equal emphasis on technical protection (hardware) and behavioral management (software). Urgent priority: Photoelectric protection + electrical compliance transformation to avoid immediate life-threatening risks; Long-term management: Each shift's "Hazard Source Board" (Figure 4) indicates the risk points of the day, and combines the SHARP analysis method to quantify the nodes of human error. Operators must keep in mind: "Do not put your hands in the mold area, keep your eyes on the workpiece, and do not take chances" - any negligence of 0.1 seconds may cause irreversible damage.   If you have more ideas, please contact us! Tel: +86 -18855551088 Email: Info@Accurl.com Whatsapp/Mobile: +86 -18855551088

Choosing between an NC Press Brake and a CNC Press Brake depends on several factors, including production needs, budget, part complexity, and desired level of automation. Here are some considerations to help guide your decision: Production Volume: Low to medium-volume production with simpler parts: An NC Press Brake might suffice. High-volume or complex production requiring multiple intricate bends: A CNC Press Brake will provide the necessary precision and automation. Part Complexity: If the parts are simple and do not require frequent changes or complex bending sequences, an NC press brake might be more cost-effective. If the parts involve complex geometries, multi-step operations, or tight tolerances, a CNC press brake will be more suitable. Budget: For businesses on a tight budget or with simpler bending needs, an NC press brake may be the better choice. For companies looking to maximize automation and reduce human error, the initial higher cost of a CNC press brake can be justified by the improvements in efficiency, quality control, and throughput. Workforce Skill Level: An NC press brake might require more skilled operators who are proficient in manual setup and adjustments. A CNC press brake is easier to operate with less technical expertise, as the machine itself compensates for many manual interventions. Summary: NC Press Brake: Suitable for simpler, low-to-medium volume production with straightforward bending requirements. Offers moderate precision and requires more manual setup. CNC Press Brake: Best for high-precision, complex tasks with high-volume production needs. It offers superior automation, flexibility, and efficiency but comes with a higher initial investment. Ultimately, the choice between NC and CNC depends on your specific manufacturing needs and how much complexity, automation, and precision are required for the jobs at hand. If you have more ideas, please contact us！ Tel : +86 -18855551088 Email : Info@Accurl.com Whatsapp/Mobile : +86 -18855551088

accurl press brake is the key component for controlling the movement of the bending machine. By precisely controlling the speed, position and torque of the motor, the servo system enables the table and upper die of the bending machine to carry out accurate movement according to the program, so as to complete various bending operations. A servo system usually consists of the following components: 1. Servo motor: electric drive device, through the motor rotation to drive the main movement of the bending machine, such as the up and down movement of the upper and lower die, or the precise control of the bending Angle. 2. Servo driver: Control the speed and steering of the servo motor to ensure the precise operation of the motor according to the predetermined procedure. The drive receives instructions from the CNC control system and translates them into actions that the motor can perform. 3.CNC control system: It is usually realized by the computer numerical control (CNC) system, which calculates and outputs the control instructions according to the data input by the program, so as to control the action of the servo drive and the motor. 4. Feedback system: The position, speed and torque of the motor are monitored in real time through sensors (such as encoders), and the data is fed back to the control system to ensure that the system is accurately adjusted and any errors are corrected. The advantages of servo system are high precision, high efficiency and high flexibility. It enables the bending machine to perform a variety of complex bending operations, and can precisely control the bending Angle, bending depth and speed, improving production efficiency and processing quality.   In short, the servo system enables CNC bending machines to perform automated bending operations efficiently and precisely through sophisticated motor control and feedback mechanisms. If you have more ideas, please contact us！ Tel : +86 -18855551088 Email : Info@Accurl.com Whatsapp/Mobile : +86 -18855551088

Accurl CNC bending machine is a kind of precision equipment, its use accuracy depends on several factors, including the design of the machine and quality, operator skill levels and the properties of materials, etc. In general, a good CNC bending machine can achieve a high degree of accuracy when set up and operated correctly. Here are some key factors that affect the accuracy of CNC bending machines:   1. Equipment quality: high-quality CNC bending machine after accurate design and manufacturing, with a stable structure and precision movement system, can provide higher accuracy.   2. Programming and setting: Correct programming and setting is the key to ensuring accuracy. The operator should set the correct parameters according to the properties of the material, bending Angle and bending process.   3. Fixture and mold: The appropriate fixture and mold can ensure the stable fixing of the workpiece and the correct bending shape. The quality of the design and machining of fixtures and molds is critical to accuracy.   4. Material properties: Different materials have different bending characteristics, including elasticity, plasticity, bending limit, etc. The operator should understand and consider the properties of the material to avoid excessive or insufficient bending.   5. Operator skills: The operator's experience and skill level have a great impact on the accuracy of the CNC bending machine. Skilled operators are able to correctly understand and execute programming instructions for accurate operations and adjustments.   It should be noted that even high-quality CNC bending machines may have certain errors. Therefore, when performing critical and precision-demanding bending processes, testing and fine-tuning may be required to ensure final accuracy.   In general, correct Settings, appropriate parameter selection, good material handling and skilled operators are the keys to ensure the accuracy of CNC bending machines. Highly accurate bending results can be obtained by following the correct operating procedures and quality control standards. If necessary, please visit our official website for more information about the bending machine! Website: www.accurlpressbrake.com

Numerical Control Bending Machine (Computer Numerical Control Bending Machine) is a kind of equipment that uses numerical control technology to bend metal sheets. It controls components such as servo motors, hydraulic systems and fixtures through a control system to achieve accurate bending and shape adjustment of sheet metal.   The use of CNC bending machine is as follows:   Set processing parameters: On the operating interface of the CNC bending machine, set the required processing parameters, including the width, thickness, bending Angle, bending length, etc.   Adjusting the fixture: the metal sheet to be processed is fixed on the fixture of the CNC bending machine, and the position and size of the fixture are adjusted as needed to ensure the stability of the sheet and the correct bending position.   Writing machining program: using the control system of CNC bending machine, writing machining program. The machining program generally describes the bending path and process requirements by means of input instructions, selection of tools and deviation compensation.   Loading machining program: the written machining program is loaded into the control system of the CNC bending machine.   Start processing: In the case of confirming the processing parameters and the position of the fixture, start the CNC bending machine and begin the automatic bending processing. The CNC bending machine precisely controls the bending Angle and force by controlling the servo motor and hydraulic system according to the preset machining program.   Inspection processing results: After the processing is completed, the bent metal sheet is removed from the fixture and the quality inspection is carried out to ensure that it meets the design requirements.   CNC bending machine has a high degree of automation and precision performance, widely used in metal manufacturing, aerospace, automobile manufacturing, home appliance manufacturing and other industries, for mass production and customized production of metal sheet bending processing. It greatly improves processing efficiency and product quality, reduces labor costs and human errors, and can adapt to a variety of complex bending shape requirements.     Contact us to give you the most professional reply and detailed price.