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ES/EP
Hydraulic Servo System
The hydraulic servo drive system consists of ES600 series servo drive and EP series servo motor. By combining the capabilities of high-performance general servo platform, it comprehensively enhances servo motion control capabilities. Deeply coupled with the structural characteristics of oil pumps, it significantly reduces hydraulic pressure pulsation. The integrated machine features a duct casing structure, enhancing heat dissipation and increasing mechanical structural strength. With a new electromagnetic design featuring low inertia, the inertia of the frame size 200 is reduced by approximately 10%, meeting high-speed response requirements. By combining software and hardware, vibrations are minimized, achieving ultimate silence. Equipped with CANOPEN communication and coupled with upper computer platform, the entire electrical control solution assists in upgrading hydraulic equipment.
Paired with intelligent hydraulic position closed-loop algorithm, it significantly enhances positioning accuracy, reduces impact during operation, decreases equipment wear, and improves equipment lifespan. It intelligently diagnoses pump and oil circuit faults based on feedback pressure, actual speed, output current, and other information.
Product Positioning
Working Principle
Before the system establishes pressure, the flow is used to control the speed of the servo motor precisely, thus controlling the system flow accurately.
After the system pressure is established, the real-time pressure is rapidly controlled through pressure PID, utilizing the advantages of fast response and precise control of the servo motor to achieve rapid and high-precision pressure control in the system.
Application and solutions in the large-scale hydraulic station industry
Equipped with dedicated ES600 hydraulic servo drives and EP series servo motors, it covers a power range of 3.7-160kW and various
other specifications.
By detecting the real-time motor speed through encoder line, speed closed-loop control is achieved. Real-time pressure sensing via
pressure sensors enables pressure closed-loop control of the system, ultimately achieving dual-loop control of hydraulic flow and
pressure. Energy consumption is reduced by 30-60%. Under equivalent conditions, oil temperature decreases by 5-10°C. After complete
station transformation, noise is reduced by 5-10DB. Only the motor is replaced, with no modifications to the hydraulic system. Motor
oiling is reduced, leading to decreased maintenance. The system can operate continuously at high speed at 40°C for 6-8 years. The
overall construction process takes a minimum of one day and does not require shutdown, thus not affecting production.
| Pressure | Oil pump displacement | Motor | Servo drive | ||
| Mpa | cc | Model | Parameter | Model | Parameter |
| 25 | 20 | EP18-66F17K | 63Nm,1700rpm | ES600T025 | 11kW |
| 25 | 25 | EP18-70F17K | 74Nm,1700rpm | ES600T032 | 15kW |
| 25 | 32 | EP18-105F17K | 107Nm,1700rpm | ES600T037 | 18.5kW |
| 25 | 40 | EP18-120F17K | 126Nm,1700rpm | ES600T045 | 22kW |
| 25 | 50 | EP25-153F17K | 158Nm,1700rpm | ES600T060 | 30kW |
| 25 | 63 | EP25-189F17K | 189Nm,1700rpm | ES600T075 | 37kW |
| 25 | 80 | EP25-236F17K | 241Nm,1700rpm | ES600T091 | 45kW |
| 25 | 100 | EP25-314F17K | 294Nm,1700rpm | ES600T112 | 55kW |
| 25 | 125 | EP25-380F17K | 375Nm,1700rpm | ES600T150 | 75kW |
| 25 | 160 | EP25-480F17K | 481Nm,1700rpm | ES600T176 | 90kW |
Q1: Can I have a sample order?
A1: Yes, we welcome sample order to test and verify the quality and performance. Mixed model samples are acceptable too.
Q2: Do you have any MOQ limit?
A2: NO MOQ. Please just send us inquiry.
Q3: What is the lead time?
A3: We have some stock for common models. Common model samples take 1-3 days; bulk orders take 3-10 working days. Uncommon models take 20-30 working days and depends on the actual situation of the production line.
Q4: Do you offer warranty for the products?
A4: Yes, we provide 18 months warranty for the failure or damage under normal use conditions. If the equipment has been used for over 18 months, reasonable repair expenses will be charged.
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