Discover how LONGBOW’s press brakes can help you optimize your production
LONGBOW offers productive CNC hydraulic press brakes, new customized solutions, and easy-to-use option suites designed to meet the customers real needs and provide them with the right machine for their businesses.
LONGBOW Press Brakes
CNC Hydraulic Press Brakes
Changgong CNC press brake are highly customizable. We offer a comprehensive selection from economical CNC hydraulic press brake to high-precision CNC hydraulic press brake to electric press brake. The press brake have a wide range of pressures, ranging from 8 tons to 6,000 tons, and the bed length is also extremely flexible, ranging from 0.8 meters to 24 meters. We are equipped with a variety of systems such as Delem, ESA, Cybelec, etc., designed to fully meet the specific needs of different customers.
Our press brake combine the most advanced technology, an experienced professional team, and excellent mold designers to ensure that each device achieves excellent performance and stability. However, in the face of such a variety of choices, how to choose a bending machine that best meets your needs is the key.
Precision CNC press brake
Controller: DELEM, CYBELEC, ESA
Capabilities: 50T – 800T
High precision rear stop
Machine quenching
Free custom and design mold
Optional configuration: laser protection, follow-up support, hydraulic fixture, etc
Econom CNC Press Brake
Controller: E21,TP10 ,CT8.DA41
Capabilities: 30T – 600T
High precision rear stop
Free custom and design mold
High cost performance
100% Electric CNC Press Brake
Capabilities: 3T -63T
100% Electric Bending Technology
Noiseless All-electric Servo
No Hydraulic Oil or Hydraulic Filter
No Valves or Cylinders
No Clutch or Flywheel
Reduced Dwell Time
Upgrade Solutions
CNC Control System
Back Gauge Modification
Tooling Clamping System
Crowning System
Bending Offline Software
Industry 4
How to choose a suitable press brake
Different materials have different tensile strengths, and the thickness of the material will determine the tonnage required. Ensure the press brake can handle the maximum thickness of the material you will be working with.
The length of the press brake should accommodate the longest piece of material you need to bend. Ensure the machine’s bed length is suitable for your largest workpiece.
Precision in bending is crucial for quality production. Look for a press brake with high accuracy and repeatability specifications if your parts demand tight tolerances.
For high-volume production, an automated press brake with CNC controls might be more suitable, whereas a manual or semi-automated press brake could suffice for lower volumes.
Press brakes come in various sizes. Ensure you have enough space to accommodate the machine, including space for material handling.
Cost is a significant factor. Balance your budget with the required features and capabilities. Consider long-term costs, including maintenance and energy consumption.
Modern press brakes come with various safety features like light curtains, safety mats, and emergency stop buttons. Ensure the machine meets safety standards.
Yes, adjustable or segmented tooling allows for bending different lengths and profiles without changing the entire setup, enhancing efficiency and flexibility.
Choosing a suitable press brake tool can reduce a lot of trouble, mainly considering the following issues
Common press brake tools include:
- V-Dies: Standard, acute angle, and multi-V dies.
- Punches: Straight punches, gooseneck punches, and hemming punches.
- Specialty Tools: Offset dies, radius dies, hemming tools, and custom tools for specific applications.
The V-die opening depends on the material thickness and type. A general rule is:
V = 8 x Material Thickness (T)
Adjustments might be needed based on specific bending requirements and material properties.
Tooling materials include:
- Tool Steel: Durable and wear-resistant for general use.
- Carbide: Extremely hard and wear-resistant for high-precision, high-volume work.
- Polyurethane: For bending sensitive materials without surface damage.
Material type (e.g., steel, aluminum, stainless steel) affects the choice of tooling. Consider the material's hardness, ductility, and surface sensitivity to ensure appropriate tooling.
The punch and die angle should match the desired bend angle. Common angles include 90°, 88°, and 85°. For acute bends, use punches and dies with angles less than 90°.
Precision-ground tooling offers high accuracy and repeatability, crucial for high-precision applications with tight tolerances.
Proper alignment and setup are critical for accurate bends and to prevent tool damage. Regularly check and adjust alignment to maintain precision.
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