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China, Chinese Sheet Metal Bending CNC Press Brake Machine1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Bending MachineSheet Metal BendingPress Brake
Nanjing Shengzhong Machinery Technology Co., Ltd.
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Product Description SPECIFICATIONPARAMETETERSNormal force1300KN Bending Length3200mm Distance between columns2700mm Throat depth410mm Slide stroke200mm Maximum opening height570mm The height of the workbench800mm The width of the workbench100mm Power of the main generator:11KW Numerical control system(NCS)DE15 Number of control axis4+1Automatic Boundary dimension(mm)Length*width *height 4000mm*1750*2680X-axis travel500mm SpeedX-axis speed200mm/smax 300mm/sApproching 200mm/s working0-15mm/s Returning140mm/s AccuracyPositioning accuracy±0.01mm Repetition positioning accuracy±0.02mm FAQ1. Operation & ProgrammingQ1: How do I calculate the correct Bend Deduction or K-Factor for my material?A: Bend Deduction and K-Factor are material-dependent. The most accurate method is practical testing: make a few test bends with the same tools and material, measure the final dimensions, and back-calculate the accurate value. Many modern press brake controllers have built-in material libraries that provide estimates as a starting point.Q2: How do I choose the correct Punch and Die?A: Tooling selection depends on material type, thickness, desired bend angle, and inside radius (R). A general rule of thumb is: the die V-opening width is typically 6 to 12 times the material thickness (T) (e.g., for 3mm steel, a 20mm or 25mm V-die is common). Thicker materials or larger radii require wider V-openings.Q3: Why are my bend angles inconsistent? Some are over-bent, some are under-bent?A: This is one of the most common issues. Potential causes include:Material variation: Hardness can differ between batches.Tooling wear or misalignment: Check if punches and dies are parallel and aligned.Inconsistent bending speed: Too fast or too slow can affect springback.Machine accuracy: Check if the Deflection Compensation system (e.g., servo-hydraulic compensation or wedge compensation) is working correctly and properly set up. 2. Accuracy & Quality IssuesQ4: The bend angle in the middle of the part is larger than at the ends. Why?A: This is caused by the elastic deflection (bending) of the ram and bed under load. You need to activate or adjust the machine's deflection compensation system. For older machines without compensation, manual compensation can be achieved by crowning the bed or using a crowned die.Q5: How can I reduce Springback?A: Springback cannot be eliminated entirely, but can be controlled by:Overbending: Program a smaller angle than required to compensate for springback.Using a sharper punch: Reduce the punch tip radius (R).Increasing pressure: Use coining mode, but it requires tremendous force.Using a smaller V-die: This increases stretching, reducing springback.Q6: What should I do if there are indentations or scratches on the workpiece surface?A: Check if the tools are clean and free of chips or dirt. For sensitive materials (e.g., aluminum, stainless steel), use plastic or polyurethane protective sleeves on the tools, or opt for polished mirror-finish tools. 3. Maintenance & SafetyQ7: How should I perform daily maintenance on my press brake?A: Daily maintenance includes:Keep the machine and tools clean. Remove oil and metal chips.Check hydraulic oil level for leaks.Check lubrication points and grease them as scheduled.Verify that safety devices (e.g., light curtains, E-stop buttons) are functional.Q8: The laser safety guard was triggered and stopped the machine. What should I do?A: NEVER bypass the safety device! First, ensure all hands and body parts are clear of the danger zone. Then, press the reset button to reset the safety system. Check if any object is blocking the light curtain beams. If the problem persists, contact qualified maintenance personnel.Q9: The press brake is making abnormally loud noises during operation. What could be the cause?A: Possible causes include: low hydraulic oil or air in the oil, faulty hydraulic pump or motor, damaged bearings, excessive clearance or poor lubrication between the ram and guides. Stop the machine immediately and have it inspected by a professional. 4. Selection & PurchaseQ10: Should I choose a Servo-Hydraulic Press Brake or a Fully Electric Press Brake?A:Servo-Hydraulic: Mature technology, high power, suitable for medium to thick plates, cost-effective, and relatively easy to maintain.Fully Electric: Energy efficient (highly), fast, high precision, quiet, clean, and eco-friendly. Ideal for high-speed, high-precision thin sheet processing. The initial investment is usually higher.Q11: What are "Axes"? What do axes like Y1, Y2, X, R, Z represent?A: "Axes" represent the controllable functions of the press brake.Y1, Y2: Control the vertical movement of the left and right cylinders of the ram. They are the main axes. Independent control of Y1 and Y2 allows for ram crowning to compensate for deflection.X: The forward/backward movement of the back gauge.R: The vertical movement (up/down) of the back gauge.Z: The left/right movement of the back gauge fingers (usually one or multiple pairs).More axes allow the machine to perform more complex forming (e.g., 3D bending).
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