China Servo Four-Column Hydraulic Press - Leading Suppliers and Factory for Precision Control
Functions
A servo four-column hydraulic press is a hydraulic mechanical device that uses a servo motor to drive the hydraulic system, achieving precise control of pressure, displacement, and speed. Its main functions include:
- Stamping, bending, stretching, press-fitting, straightening, flanging, and other forming processes for metal or non-metal materials.
- Capable of achieving high-precision pressure control (e.g., ±1% pressure accuracy), suitable for scenarios requiring high processing precision.
- Real-time feedback through servo motors and sensors enables closed-loop control of stroke (displacement), speed, and pressure, with positioning accuracy up to ±0.01mm.
- Supports multi-stage process programming (e.g., segmented pressure application, pressure-holding delay) to meet complex process requirements.
- The servo system dynamically adjusts the motor speed and power output according to the actual load, saving 30%–70% energy compared to traditional hydraulic presses.
- Equipped with safety functions such as overload protection, limit protection, and emergency stop devices to ensure the safety of equipment and operators.
Applications
Servo four-column hydraulic presses are widely used in industrial manufacturing, specifically including:
- Press-fitting of components (e.g., bearings, gearbox components), sheet metal forming of vehicle bodies, and press-fitting of motor stators.
- Case: Precision press-fitting of new energy vehicle motor stators, requiring high pressure accuracy and non-destructive processing.
- Stamping and forming of electronic components (e.g., mobile phone casings, computer accessories), and precision component pressing (e.g., screen and frame bonding).
- Stretching and bending of home appliance components (e.g., compressor parts, kitchen and bathroom hardware).
- Precision forming of aerospace components (e.g., titanium alloy structural parts) and high-precision mold testing.
- Pressing and forming of medical devices (e.g., orthopedic implants), requiring aseptic environments and process stability.
- Processes in lithium battery production such as electrode sheet pressing, cell packaging, and battery module pressing, which demand extremely high pressure uniformity and displacement accuracy.
- Frame pressing and silicon wafer cutting assistance for photovoltaic modules.
- Stamping of hardware products (e.g., tableware, locks).
- Material mechanical property testing (e.g., pressure testing, fatigue testing) in research institutions.
Characteristics
Compared with traditional hydraulic presses or mechanical presses, servo four-column hydraulic presses offer the following significant advantages:
- Pressure Control: Uses a servo motor + ball screw or servo pump control system, with minimal pressure fluctuation and high repeatability accuracy.
- Displacement Control: Real-time position feedback from the servo motor encoder, combined with sensors such as optical gratings, achieves micron-level positioning.
- Speed Control: Stepless speed regulation within 0.1–200 mm/s, suitable for low-speed precision processing (e.g., electronic component pressing) and high-speed stamping.
- Demand-Driven Energy Supply: The servo motor only operates during work, with extremely low standby power consumption, reducing energy consumption by over 50% compared to traditional hydraulic presses.
- Shortened Cycle: Fast response and precise control reduce idle stroke time, improving production efficiency (by 20%–50%).
- Multi-Process Compatibility: Can store multiple process parameters (e.g., pressure-displacement curves for different products) through programming, enabling one-click switching of production tasks.
- Suitable for Small-Batch Customization: No need to replace hardware molds; different product processing can be completed by adjusting parameters, suitable for personalized production needs.
- Low Noise: The servo system operates smoothly, with noise typically below 75 dB, better than traditional hydraulic presses (above 85 dB).
- Simple Maintenance: Simplified hydraulic system (no traditional components such as relief valves and throttle valves), less oil contamination, and extended maintenance cycles.
- Real-Time Monitoring: Equipped with a touchscreen human-machine interface, which can display parameters such as pressure, displacement, and speed in real time and generate production data reports.
- Fault Diagnosis: The system automatically detects anomalies (e.g., overload, oil leakage) and prompts alarm information for quick troubleshooting.
- Networking Function: Supports integration with factory MES systems for production data traceability and remote monitoring.
Conclusion
With characteristics such as high precision, energy efficiency, and flexibility, servo four-column hydraulic presses have become important equipment for modern manufacturing upgrades, especially suitable for scenarios with high requirements for processing quality, production efficiency, and environmental protection. With the development of servo technology and industrial automation, their application scope will further expand into more high-end manufacturing fields.
Technique Parameter
| Model | Units | JSSLED-300 | JSSLED-500 | JSSLED-1000 | JSSLED-2000 | JSSLED-3000 | ||
|---|---|---|---|---|---|---|---|---|
| Master cylinder | Inhibit the nominal force | ton | 300 | 500 | 1000 | 2000 | 3000 | |
| Deciduate nominal force | Mpa | 24 | 24 | 24 | 24 | 24 | ||
| Moving beam maximum stroke | mm | 350 | 350 | 400 | 400 | 300 | ||
| Quick downlink speed | mm/s | 230 | 210 | 230 | 230 | 230 | ||
| Working speed | mm/s | 10~18 | 12 | 10~18 | 10~18 | 10~18 | ||
| Return speed | mm/s | 200 | 180 | 200 | 200 | 200 | ||
| Stretching cylinder | Nominal Pressure | ton | 65 | 80 | 100 | 150 | 150 | |
| Dia. of ejector bar | mm | 6-φ26 | 6-φ32 | 6-φ32 | 6-φ38 | 6-φ38 | ||
| Ejecting stroke | mm | 120 | 150 | 150 | 150 | 120 | ||
| First ejecting cylinder | Nominal Pressure | ton | 25 | 30 | 65 | 25 | 25 | |
| Dia. of ejector bar | mm | φ30 | φ40 | 6-φ25 | 6-φ30 | 6-φ30 | ||
| Ejecting stroke | mm | 70 | 70 | 70 | 70 | 70 | ||
| Secondary ejecting cylinder | Nominal Pressure | ton | / | / | 20 | 20 | 30 | |
| Dia. of ejector bar | mm | / | / | φ25 | φ30 | φ30 | ||
| Ejecting stroke | mm | / | / | 105 | 110 | 105 | ||
| Height of the opening and closing | mm | 800 | 800 | 800 | 1000 | 800 | ||
| Bolster close height | mm | 1100 | 1200 | 1560 | 1760 | 800 | ||
| Bolster of M. W. T* Available | F-B(Rim) | mm | 630 | 700 | 1050 | 1360 | 1650 | |
| L-R (Between cylinder) | mm | 590 | 730 | 1050 | 1250 | 1340 | ||
| Over all dimension | L-R | mm | 2090 | 2200 | 3030 | 3560 | 4450 | |
| F-B | mm | 1650 | 1650 | 1650 | 1940 | 3380 | ||
| Height | mm | 3080 | 3250 | 3990 | 4780 | 5640 | ||
| Motor power | kw | 11+18.5 | 15+22 | 22+22 | 30+30 | 30+37 | ||
| Weight | kg | 10000 | 12000 | 30000 | 50000 | 70000 | ||
Frequently Asked Questions
It is a hydraulic mechanical device driven by a servo motor. It achieves closed-loop control of pressure, stroke (displacement), and speed using real-time feedback from sensors and encoders, offering a pressure accuracy of up to ±1%.
The servo system dynamically adjusts motor speed and power output based on the actual load. The motor only operates during active work, reducing standby power consumption and saving 30% to 70% energy compared to traditional hydraulic presses.
By combining the servo motor encoder feedback with sensors such as optical gratings, the system achieves highly precise closed-loop displacement control with positioning accuracy up to ±0.01mm.
They are widely used in the automotive industry (e.g., motor stator press-fitting), electronics and home appliances (e.g., components stamping), aerospace, medical devices, and the new energy sector (e.g., lithium battery electrode sheet pressing).
The press uses a simplified hydraulic system without traditional relief and throttle valves, leading to less oil contamination and longer maintenance cycles. The smooth operation also keeps noise levels below 75 dB, which is much lower than traditional presses.
Yes, it features multi-process compatibility. It allows operators to store multiple process parameters (like pressure-displacement curves) in the system, enabling one-click switching for small-batch and personalized production.