DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.

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40T 1500MM Electro-Hydraulic Servo CNC Press Brake for Precise Bending of Sheet Metal

Electro-Hydraulic Servo CNC Press Brake Introduction
The Electro-Hydraulic Servo CNC Press Brake is a high-precision forming machine that combines electrical, hydraulic, and servo technologies. It is widely used in the sheet metal industry for producing high-precision products such as the U-shaped metal frames for LCD TVs.
Availability:
Quantity:
  • WL40/1500

Electro-Hydraulic Servo Press Brake Main Features

The Electro-Hydraulic Servo Press Brake is a sophisticated and versatile machine designed for precision bending in the sheet metal forming industry. It integrates advanced hydraulic and electrical technologies to provide precise, energy-efficient, and user-friendly bending operations. Below are the key features and specifications that define its performance and capability.

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Key Features:

  1. Welded Machine Structure:The machine features an overall welded structure that has undergone annealing vibration stress relief treatment to eliminate internal stress and prevent deformation. This ensures the machine's stability, even under heavy loads, and contributes to high precision bending.

  2. Hydraulic or Wedge Compensation Mechanism:It is equipped with a hydraulic or wedge deflection compensation system, controlled by the CNC system. This ensures that the machine compensates for deflection during the bending process, maintaining uniformity and precision in every bend.

  3. Precision Grating Scale:The press brake is fitted with a precision grating scale from HEIDENHAIN, a world-renowned manufacturer of linear encoders. This ensures accurate monitoring of the machine's downward movement and enhances the overall positioning accuracy during operation.

  4. Independent Cylinder Control:The oil cylinders in the press brake can be controlled independently, allowing for individual adjustments to each cylinder. This improves the machine’s flexibility and makes it capable of adapting to various types of sheet metal and bending operations.

  5. System-Controlled Parameters:Key parameters such as holding time, stroke position, and cycle counts are controlled through the system, allowing for highly customizable and automated operations.

  6. Flexible Motion Control:The machine utilizes electro-hydraulic proportional control for precise bending operations. The sliding block can operate in various modes, including jog, single stroke, continuous, mid-stop, hold pressure, rapid descent, and slow descent, all governed by a seamless integration of electrical and hydraulic systems.

  7. Advanced Positioning and Control:The machine uses servo control for precise positioning, ensuring high accuracy during operations. The rear positioning system employs full servo control, providing superior repeatability and high-precision results.

  8. High Precision and Repeatability:

    • Positioning accuracy: ±0.01mm

    • Repeat positioning accuracy: ±0.01mm

    • Bend angle accuracy: ±30’/full length

    • Rear gauge repeat positioning accuracy: ±0.01mm

  9. User-Friendly Interface:The machine features a clear and simple interface, with large buttons and touch-screen operation that ensures ease of use. The user interface is intuitive and facilitates fast setup and operation, ideal for both novice and experienced operators.

  10. Efficient Bending Programming:The machine’s programming system is optimized for high-volume production, with capabilities for efficient bending cycle management. It allows for quick programming through 2D graphic programming and EasyBend pages for single-step bending.

  11. Automatic Simulation and Calculation:The press brake features an automatic bending sequence simulation, which calculates the most optimal bending process. This includes:

  • Automatic calculation of pressure-deflection compensation.

  • Automatic calculation of upper die depth.

  • Automatic calculation of bending angles and rear gauge positioning.

  1. Pressure and Deflection Compensation:The system automatically compensates for pressure and deflection during the bending process, adjusting parameters to ensure consistent results across different workpieces and material thicknesses.

  2. Energy Efficiency:The electro-hydraulic servo system ensures energy efficiency, with proportional valves and servo motors providing precise and variable energy output based on the actual requirements of the bending operation. This helps reduce energy consumption compared to traditional hydraulic systems.

  3. Multi-Language Support:The machine’s interface supports multiple languages, providing greater accessibility for operators worldwide.

  4. USB Interface for Data Management:The machine includes a USB interface, making it easy to back up data, update software, and transfer programs between different devices for seamless operation.


Machine Performance and Specifications

  1. Standard Tooling:The press brake is equipped with standard upper and lower dies, where the lower die features a stacked square structure with grooves of two different widths, allowing for bending of different thicknesses of sheet metal. The groove width is generally set to 6-8 times the thickness of the workpiece, depending on the material and bending requirements.

  2. Deflection Compensation Device:The machine features a deflection compensation device installed on the worktable. It compensates for the elastic deformation of the slider and worktable during bending. The compensation system calculates automatically based on the input material thickness and length but can also be manually adjusted based on the operator’s experience.

  3. Quick-Clamping Upper Die:The upper die is equipped with a quick-clamping mechanism, allowing for easy and rapid tool changes. It also features segmented sections, which can be adjusted based on the specific bending needs.

  4. Tool Adjustment:Tool adjustments are made easy with built-in features for precise alignment. The machine is designed for quick changes of the upper and lower dies, enabling faster setup times for different bending tasks.

  5. Rear Gauge Positioning:The rear gauge system uses AC servo motors from Yaskawa (Japan), providing high-speed and high-precision positioning. The gauge ensures that workpieces are accurately positioned during bending, improving efficiency and repeatability.


Technical Parameters

Parameter WL-40/1500 WL-100/2500 WL-100/3200 WL-100/4100 WL-160/3200 WL-160/4100 WL-200/3200 WL-200/4100 WL-200/5000 WL-200/6000 WL-250/3200 WL-250/4100 WL-250/5000 WL-250/6000
Bending Force (KN) 400 1000 1000 1000 1600 1600 2000 2000 2000 2000 2500 2500 2500 2500
Bending Length (mm) 1500 2500 3200 4100 3200 4100 3200 4100 5000 6000 3200 4100 5000 6000
Max Opening Height (mm) 400 460 460 460 460 460 500 500 500 500 500 500 500 500
Stroke (mm) 160 200 200 200 200 200 240 240 240 240 240 250 250 250
Motor Power (kW) 4 7.5 7.5 15 15 15 15 15 15 15 18.5 18.5 22 22
Weight (kg) 3800 7500 9800 11500 11800 13800 14700 16000 20500 25000 15000 18000 25100 29800

Key Features:

  1. High Precision Control System
    This press brake is typically equipped with Swiss CYBELEC DNC systems or Dutch DELEM series control systems, which incorporate advanced CNC technology to precisely control the bending angle, position, speed, and other parameters, ensuring high processing accuracy and production efficiency.

  2. Advanced Transmission System
    It is equipped with Japanese Yaskawa servo motors and Taiwan Hiwin ball screws for the transmission system. This combination ensures precise control of the ram movement and improves the stability and accuracy of the machine’s operations by minimizing transmission errors.

  3. Efficient Hydraulic System
    The hydraulic system uses components from Germany’s BOSCH brand, which provides efficient energy conversion and stable working pressure. This ensures stable operation during the bending process and high productivity.

  4. High-Quality Electrical Components
    The press brake uses electrical components from France’s Schneider, ensuring high reliability and long service life, which helps in maintaining stable machine operation.

  5. Durable Seals
    Seals from France’s STARK (SDA) are used, offering excellent wear resistance and high-temperature tolerance, ensuring the hydraulic system remains stable over long periods.

  6. Accurate Linear Scales
    The press brake is equipped with German HEIDENHAIN linear scales to monitor the downward position of the ram with high precision, providing accurate feedback and ensuring the bending process maintains its precision.

Applications:

The Electro-Hydraulic Servo CNC Press Brake is primarily used in the manufacturing of high-precision sheet metal products such as:

  • LCD TV frames

  • Precision electronic enclosures

  • Automotive parts

  • Aerospace components

  • General sheet metal fabrication

Applications of the Electro-Hydraulic Servo Press Brake

The Electro-Hydraulic Servo Press Brake is widely used in various industries, including:

  1. Automotive Manufacturing: For bending metal parts like body panels, brackets, and chassis components.

  2. Aerospace: For bending lightweight yet durable materials such as aluminum and titanium in aircraft manufacturing.

  3. Construction: For fabricating structural components such as beams and frames.

  4. HVAC and Electrical Equipment: For bending sheet metal used in ducts, electrical enclosures, and other systems.

  5. General Metal Fabrication: Ideal for custom sheet metal work and prototypes requiring high precision.

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DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.
We offer comprehensive OEM/ODM services and spare parts for diverse industries. Our R&D team of over 50 experts ensures cutting-edge innovations, while our international support team of 21 professionals provides global service.

 

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