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Seeing the model number "160Ton 4200," those in the know immediately recognize it as a "mainstay" in the workshop, handling heavy-duty work. Its 4.2-meter length and 160-ton pressure clearly target long, medium-thick plates, such as elevator door panels, large electrical cabinet housings, or metal components for architectural decoration.
The 160Ton4200 Electro-hydraulic Servo CNC Bending Machine's frame is welded from Q355B steel plate. This material is thick enough, and vibration aging is performed after welding. Why? To prevent internal stress from lingering, which could cause the frame to deform under heavy loads, ruining all accuracy. Its considerable weight provides excellent rigidity, supporting torsional and compressive strength. When bending long plates, it effectively suppresses elastic deformation, ensuring consistent angles across the entire plate, preventing uneven bending.
The core power source is an electro-hydraulic servo motor, with a servo motor paired with a hydraulic pump unit for closed-loop control. This is smarter than older hydraulic presses, providing the required pressure and adjusting the flow rate in real time. The slider moves in a controlled, orderly fashion, bending smoothly and returning quickly, and crucially, the hydraulic oil temperature rises slowly. As you know, high oil temperature can cause inaccuracies in ordinary hydraulic presses, but this 160Ton4200 Electro-hydraulic Servo CNC Bending Machine maintains stable accuracy even after prolonged continuous operation. Furthermore, it consumes less power during standby or idling, saving costs in the long run.
Slider synchronization relies on a dual-cylinder, linear encoder, and a fully closed-loop system, ensuring even movement on both sides with minimal error and accurate repeatability. This results in batches of workpieces with consistently similar dimensions. The back gauge is controlled by a servo motor, enabling multi-axis linkage and movement in all directions. For asymmetrical parts or parts with multiple bends, clamping is done in one go, eliminating the need for repeated manual alignment. Machine adjustments are quick, and program changes are straightforward when switching specifications, making it suitable for situations with a variety of products but relatively small batch sizes.
The system is fairly user-friendly, with graphical programming capabilities. You input material thickness and bending angle, and it calculates parameters and compensation values, reducing reliance on experienced operators' expertise. It also includes functions like program saving, breakpoint memory, and fault diagnosis. Regularly checking pressure and stroke is convenient, and it alerts you to any anomalies, resulting in good production continuity.
The processed materials are unremarkable; carbon steel, stainless steel, aluminum, and galvanized steel are all supported, with thickness depending on the material. The main focus is on medium and heavy plates. The 4.2-meter working length is an advantage, allowing for direct bending of long plates without splicing, resulting in good overall integrity and appearance.
In terms of safety, it includes light curtains, emergency stops, overload protection, and limit switches, meeting regulations. The hydraulic system's sealing and piping are now quite good, with a lower probability of oil leaks than before, and the workshop isn't as dirty. Routine maintenance involves simply applying grease, checking the filter, and periodically checking the hydraulic oil nothing particularly troublesome, manageable even for a small factory.
In summary, this 160Ton4200 Electro-hydraulic Servo CNC Bending Machine is designed for stability, power, and the ability to handle long and medium-thick plates over extended periods. It doesn't rely on fancy features; instead, it focuses on practical aspects like bending accuracy, machine rigidity, operating costs, and ease of maintenance. For a medium-sized sheet metal processing workshop, it's a reliable piece of production equipment.
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