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What is Servo-Hydraulic Press

A servo-hydraulic press is the servo motor-driven hydraulic press integrated with the precision pressure and position transducer for closed-loop control. The servo-hydraulic press uses the servo motor to replace the ordinary transmission motor. The motion curve of the press slider can be set according to the process requirements. Also, the pressure, stroke, and speed are freely adjustable on HMI. Thus, the servo-hydraulic press is widely used for high-precision molding processes, and for difficult-to-form materials and parts with complex shapes. It greatly improves the processing accuracy and the yield of the products, at the same time, it is more energy saving.

Servo-hydraulic press machine benefits

Compared with traditional hydraulic presses, the benefits of servo-hydraulic presses are obvious in the following points: 

    1. Universality, flexibility, and high level of intelligence

Due to its servo function, the slider movement curve is no longer just a sine curve but could be adjusted according to the process requirements. 

    2. High accuracy

Due to the advanced linear position transducer and pressure transducer, the motion of the slider could be precisely controlled and monitored. The position control accuracy is high level, especially near the position of the bottom dead center, the accuracy of the slider position can be guaranteed within ±0.01mm. The pressure control accuracy could be ensured within 1%. In this way, each punch of the servo-hydraulic press is highly stable during the production process. With a servo-hydraulic press, we could maintain production consistency and prevent the generation of defective products.

    3. High productivity  

The servo-hydraulic press retains the advantages of the crank press, the productivity is much higher than the conventional hydraulic press. During a working cycle, there is no need to complete a 360-degree rotation for the servo motor, and only need to swing a certain angle to complete the punching cycle, which further shortens the cycle time. It minimizes unnecessary travel of the slider and greatly improves productivity.

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