Chamunda Engineering Works

CEW Hydraulic CNC Press Brakes
The machine shapes metal by pressing it between a top tool (punch) and a bottom tool (die). The CNC system manages the entire process: 

• Programming: Operators input data such as bending angle, material thickness, and bend sequence.
• Positioning: The back gauge automatically moves the sheet metal into the exact position.
• Execution: The ram (upper beam) descends with a calculated force to create the desired bend. Energy Mission +5

Key Components

• CNC Controller: The "brain" that stores programs and calculates bending sequences. Popular brands include Delem, Cybelec, and ESA.
• Ram and Bed: The ram moves vertically (Y-axis) to apply force, while the bed remains fixed or moves upward depending on the machine type.
• Back Gauge: A multi-axis positioning system (X, R, Z axes) that ensures every bend is placed accurately.
• Hydraulic/Servo System: Provides the power; modern servo-hydraulic systems can reduce energy consumption by 45–50%.
• Crowning System: Adjusts for beam deflection on long machines to ensure uniform angles across the entire sheet. 

Machine Types Common Technical Specifications

• Tonnage: Typically ranges from 30 tons to over 2,000 tons.
• Bending Length: Standard lengths from 1,250 mm to 6,000+ mm.
• Accuracy: Bending and back gauge repeatability is often within ±0.01 mm to ±0.1 mm.
• Axes: Basic models have 2 or 3 axes (Y, X, R); advanced models feature up to 11 axes for complex geometries.

CNC Synchro Press Brake Machine are designed to give more accuracy and better productivity. The controller has a facility to program the various jobs with complex bending sequence on screen. The CNC Control is used for Three Axis Control or more.

• Synchronized Ram Axes Y1-Y2
• Back Gauge Axis X

The program gives facility to bend different bending degrees; different back gauge positions different open positions. It has a facility to save different programs and it can be reloaded as when required. The back gauge consists of Flip-top Fingers, Ball Screw Linear Bearing along with drive.

• World class dedicated controller from Delem or Cybelec.
• 3 or more axis control i.e. ram axis Y1-Y2 & Back gauge axis x.
• Bend angle Depth Mode program.
• Highly Precise press brake scale for Y1 - Y2 axis.
• Close loop proportional hydraulics for ram synchronization.
• Zero leak sealing of hydraulic cylinders.
• Manual Anti deflection unit in punch.
• Quick release die clamps.
• Highly Precise proportional valve to control accurate beam movement.
• Back gauge consist of hardened ground ball screw, liner motion bearings and AC servo drive for accurate position up to 0.05 mm.

The CNC press brake, or computer numerical control press brake, is used for bending metal sheets. Compared to the NC press brake, the CNC press brake has a more advanced CNC system that results in higher bending speed, precision, and automation.

The CNC press brake's more advanced controller allows for more accurate bending, with the ability to achieve precise bending speed and angle and a final accurate workpiece. This improved accuracy and quality of the workpiece helps reduce production costs.

The CNC press brake can also produce workpieces with more complex shapes, thanks to its advanced CNC controller that can be programmed through complex algorithms.

This allows for greater control of the bending accuracy of the die, which is useful when processing workpieces with complex shapes and bending angles.

 Chamunda Engg Works CNC press brakes feature bending forces from 30 to 1000+ tons, working lengths of 4 to 24+ feet, and 2-to-8 axis control for high-precision metal fabrication. Key specifications include  to  accuracy, 100–500 mm stroke lengths, and advanced CNC systems (e.g., Delem, Cybelec) with hydraulic or electric drives. Key Technical Specifications

• Tonnage (Bending Force): Typically 30–1000+ tons.
• Bending Length: 1200 mm to 7000+ mm (4–24+ feet).
• Axis Control: Commonly 2-axis (Y, X) to 8-axis (Y1, Y2, X1, X2, R1, R2, Z1, Z2).
• Accuracy:  to  for positioning.
• Approach Speed: High speeds, often 100–200 mm/s.
• Throat Depth: 200 mm to 800 mm.
• Back Gauge Travel: 500 mm to 1200 mm (X-axis).
• Controller: Touchscreen interfaces (Delem, Cybelec, ESA) with 2D/3D simulation.

A press brake is a powerful machine tool used in metalworking to bend and shape metal sheets with precision. It operates by clamping the workpiece between a punch and die, applying force to achieve the desired bend angle or shape.

They are widely used in industries like automotive, aerospace, and construction due to their ability to meet exact specifications. As the demand for precision, efficiency, and productivity in manufacturing continues to grow, press brake technology has undergone significant advancements.

From the early days of manual operation to Numerical Control (NC) systems and now Computer Numerical Control (CNC) systems, the functionality and performance of press brakes have greatly improved.

In today’s market, NC press brake vs CNC press brake play vital roles. An NC press brake or CNC press brake is a type of press brake machine that uses a CNC system (a numerical control system) to control the bending process.

The main difference between the NC press brake and the CNC press brake is that the latter has a more advanced controller. This allows for complex programming to be carried out, leading to higher accuracy and automation levels. The CNC press brake can handle complex workpieces and mass production.

Tonnage: Typically ranges from 30 MT to 500+ MT (Metric Tons), determining the thickness and length of material that can be bent. Bending Length: Common sizes include 1500mm, 2500mm, 3200mm, and 4000mm. CNC Control Axes: Standard models often feature 3+1 (Y1, Y2, X + crowning) or 4+1 (Y1, Y2, X, R + crowning) axes, with high-end models having 6 or 8+ axes. Backgauge Range & Speed: X-axis range is typically 500-1000mm, with high-speed servo motors for rapid positioning. Daylight/Open Height: The maximum distance between the table and ram, often 350-500mm. Throat Depth: Typically 300-400mm, allowing for deeper, non-linear bends. Approach/Working/Return Speed: E.g., Approach: 100-180 mm/s, Working: 10 mm/s, Return: 100-120 mm/s. IndiaMART IndiaMART +6 Common Features Control Unit: Delem (DA53T, DA58T, DA66T), Cybelec (CybTouch 8/12 PS), or ESA. Hydraulics & Motors: Bosch Rexroth hydraulic valves and Siemens motors are standard. Safety System: Laser safety guards (e.g., Tailift Group's laser safety device) or light curtains. Crowning: Automatic hydraulic or mechanical crowning for compensation.

Product Specification Product DescriptionWe are offering Hydraulic Press Brake Machine. Press Brake hydraulic machines that we offer are widely known for their long servicing life, sturdy construction and cost-efficiency. These machines are durable and are manufactured using latest techniques to ensure excellent performance. We can customize these machines as per clients' specific requirements.

We are engaged in manufacturing superior quality of Hydraulic Rear Cylinder Type Press Brake Machine in various shapes & sizes. Hydraulic Press Brake Machine is fabricated from high grade components that assure high strength and durability to the structure. Moreover we provide Hydraulic Press Brake Machine at the most reasonable price in the industry. Refer to the attached file for technical specifications.

chamunda press brakes including CNC press brake machines are designed from the ground up to be the most intelligent metal pressing machines on the market. Using a combination of Electric and Hydraulic drive systems to acheive the fastest cycle speeds on the Accurpress lineup, this press brake machine will pump out more parts than the competition.

A CNC sheet bending machine (commonly called a CNC press brake) is a computer-controlled machine used to bend metal sheets into precise shapes and angles. It is widely used in fabrication industries for making panels, cabinets, brackets, enclosures, automobile parts, and structural components.

Main Features

• CNC Control System – Uses programmed commands to control bending angle, back gauge position, ram depth, and speed.
• High Accuracy – Produces consistent bends with minimal error.
• Hydraulic / Electric Drive – Operates using hydraulic cylinders or servo-electric systems.
• Back Gauge System – Positions the sheet automatically for repeated bends.
• Punch and Die Tools – Different tooling is used for various bend shapes.

Working Process

1. Metal sheet is placed on the machine bed.
2. CNC controller positions the sheet.
3. Ram moves downward, pressing the sheet between punch and die.
4. Sheet bends to the programmed angle.
5. Finished part is removed.

Advantages

• Fast production speed
• High precision and repeatability
• Reduced manual labor
• Suitable for complex bends
• Less material wastage

Common Types

• Hydraulic CNC press brake
• Servo-electric CNC bending machine
• Hybrid CNC press brake

Applications

Used in industries such as:

• Automotive
• Construction
• Electrical cabinets
• Furniture
• Aerospace