Fully Automatic Liquid Pressure Source: Servo Motor Driven High-Precision Closed-Loop Liquid Pressure Reference Equipment
Nexisense Fully Automatic Liquid Pressure Source is an innovative high-precision liquid pressure reference device. It breaks through the dependence of traditional hydraulic equipment on complex external power sources by directly driving a high-precision piston cylinder with a servo motor, achieving fine regulation of liquid flow and stable pressure output. The product adopts an integrated compact design, with built-in nano-level displacement sensors and high-sensitivity pressure sensors, combined with an adaptive fuzzy PID control algorithm, enabling millisecond-level response and ultra-high control accuracy to meet the stringent requirements of cutting-edge manufacturing fields for precise liquid pressure control.
Product Overview
The core of the product uses a servo motor drive system and a high-precision piston cylinder to build a complete closed-loop liquid pressure control system. The high dynamic response characteristics of the servo motor enable precise control of the piston’s reciprocating motion, realizing micro-adjustment of liquid flow, thereby achieving rapid pressure establishment and stable maintenance. The system collects piston displacement and liquid pressure data in real time and dynamically optimizes motion parameters through the intelligent control unit to ensure that the output pressure quickly and smoothly tracks the set value.

The 10.1-inch high-definition touchscreen provides an intuitive human-machine interaction interface. Users only need to input the target pressure value, and the system will automatically complete the adjustment, greatly reducing operation difficulty. This equipment is particularly suitable for scenarios with extremely high requirements for pressure control accuracy and stability, such as biopharmaceutical injection molding, semiconductor chip lithography processes, and precision liquid injection in new energy batteries.
Product Performance and Features
10.1-inch HD Touchscreen: Sensitive response, concise and intuitive graphical interface, real-time display of key parameters such as pressure value, piston displacement, and operating status, supporting one-key setting of target pressure.
Integrated Compact Design: Deep integration of servo motor, piston cylinder, and control system, with a compact structure, small footprint, and easy integration into laboratories and production lines.
High-Precision Closed-Loop Control: Built-in magnetostrictive displacement sensor and high-precision pressure sensor, combined with adaptive fuzzy PID algorithm, achieving a control accuracy of up to 0.01%FS.
Integrated High-Pressure Hydraulic Interface: Manufactured with high-strength special materials, capable of withstanding up to 250 MPa liquid pressure, reliable sealing, supports quick connection, and reduces pressure loss and leakage risk.
High Dynamic Response: Servo motor drive ensures fast pressure establishment and smooth adjustment, completely eliminating the limitations of traditional manual or complex hydraulic sources, and improving portability and applicability.
The device does not require complex external oil sources, features simple operation and low maintenance, and is an ideal reference device in the field of precision liquid pressure control.

Core Technical Parameters
| Parameter | Specification |
|---|---|
| Measuring Range | 0~60 MPa / 100 MPa / 160 MPa / 250 MPa (optional) |
| Control Accuracy | 0.05%FS, 0.02%FS, 0.01%FS (optional) |
| Electrical Measurement Function (optional) | 0-22 mA, 0-10 V (0.02% accuracy) |
| Display Mode | 5-digit digital dynamic display + 10.1-inch HD touchscreen |
| Power Supply | 220V AC |
| Operating Temperature | -10℃~60℃ |
| Operating Humidity | ≤80%RH |
| Standard Thread Interface | M20×1.5 (other thread specifications available upon request) |
Typical Application Scenarios
Biopharmaceuticals: precision liquid pressure control for injection molding and drug filling
Semiconductor manufacturing: high-pressure liquid supply in chip lithography, glue coating, and development processes
New energy batteries: pressure control in precision liquid injection processes for electrolytes and slurries
Metering verification: high-precision liquid pressure source used as standard equipment for pressure instrument calibration
High-end manufacturing: optical lens coating, microfluidic chip manufacturing, and other occasions with extremely high requirements for pressure stability
The equipment provides reliable pressure reference support for high-end precision manufacturing with its excellent pressure stability and repeatability.

Selection Guide and Integration Notes
Selection Key Points
Select the appropriate range according to the maximum working pressure; it is recommended to retain 15%–20% margin.
For occasions with extremely high precision requirements, prioritize the 0.01%FS or 0.02%FS version.
Projects requiring analog output can select the electrical measurement function option.
For batch integration projects, contact Nexisense for OEM customization, including interface specifications, communication protocols, and control logic optimization.
Integration Notes
The installation environment should be kept clean and dry, avoiding strong electromagnetic interference and severe vibration.
High-pressure pipeline connections must use dedicated high-pressure fittings to ensure reliable sealing.
Before first use, it is recommended to perform system venting to prevent air from affecting pressure stability.
After long-term operation, regularly check the piston sealing condition and sensor calibration status.
When integrating with automated production lines, it is recommended to achieve closed-loop control through the touchscreen or communication interface.
Nexisense supports OEM/ODM customization and bulk supply of fully automatic liquid pressure sources. We can provide complete technical solutions according to users’ process parameters, precision requirements, and system integration needs.
FAQ
Q1. What are the main advantages of the Nexisense Fully Automatic Liquid Pressure Source compared to traditional manual or pneumatic pressure sources?
It adopts servo motor driven piston cylinder closed-loop control, requires no complex external oil source, offers higher control accuracy (up to 0.01%FS), faster response, and better stability, significantly improving portability and automation level.
Q2. What is the maximum pressure this device can output? How is the control accuracy?
The maximum measuring range is optional up to 250 MPa, and the control accuracy can reach up to 0.01%FS, meeting the needs of most precision liquid pressure control applications.
Q3. What functions does the 10.1-inch touchscreen mainly implement?
It displays pressure value, piston displacement, and operating status in real time, supports one-key input of target pressure for automatic adjustment, and allows setting of alarm limits and control parameters.
Q4. Does it support HART or RS485 communication? Can it be connected to a DCS system?
It supports expansion of various communication protocols (customizable), facilitating integration with PLC, DCS, or host computer systems for remote monitoring and automated control.
Q5. What high-precision liquid pressure control scenarios is it suitable for?
It is particularly suitable for biopharmaceutical injection molding, semiconductor chip lithography, new energy battery precision liquid injection, optical coating, and microfluidics fields.
Q6. How difficult is installation and maintenance? Does it require professional personnel to operate?
With an integrated design, installation is simple, the operation interface is user-friendly, ordinary technicians can operate it after simple training, and daily maintenance is extremely low.
Q7. Does it support customized development for bulk purchase?
Yes, OEM/ODM customization is supported, including range, accuracy, interface specifications, communication protocols, and appearance optimization. Engineering companies are welcome for bulk cooperation.
Q8. How to ensure pressure control accuracy after long-term use?
The system has adaptive algorithms. It is recommended to perform sensor calibration every 6-12 months and regularly check the piston sealing condition to maintain optimal performance.
Summary
Nexisense Fully Automatic Liquid Pressure Source takes servo motor driven high-precision piston closed-loop control technology as its core, providing a stable and reliable liquid pressure reference solution for high-end manufacturing and precision experiments. Its compact integrated design, high-definition touchscreen operation, ultra-high control accuracy, and flexible system integration capabilities make it the preferred equipment for users in biopharmaceutical, semiconductor, new energy, and other industries.
If your project requires a high-precision liquid pressure generator or precision liquid injection pressure control equipment, please feel free to contact the Nexisense technical support team. We will provide professional selection advice, customized development solutions, and complete engineering support based on specific pressure ranges, accuracy requirements, process scenarios, and system integration needs, helping your project to advance efficiently and operate stably in the long term.
