■ Inner Structure
■ Product Principle
The E series is a modular product that integrates a servo motor with a ball screw, converting rotary motion into linear motion. It enables precise control of torque, speed, position, and thrust, providing high-precision linear motion and representing a new generation of automation drive solutions.
■ Product Advantages
1. Planetary Roller Screw Technology
Compared with conventional ball screws, planetary roller screws use multiple-point thread engagement to distribute the load over a larger contact area. This significantly increases load-carrying capacity, with the rated dynamic load capacity reaching 3–5 times that of a comparable ball screw, while providing a substantially higher static load safety margin. The technology extends the available thrust capacity to more than 30 tons, making it suitable for applications ranging from slide drive systems in large stamping presses and heavy-duty die lifting to position control on ultra-high-load test platforms.
2. Exceptional Shock Resistance
Designed to withstand transient impact loads several times higher than the rated load, such as those generated during heavy-duty equipment start/stop cycles, material impacts, or stamping rebound, the electric cylinder combines a robust integrated cylinder body with heavy-duty bearings to form a fully enclosed load path. Critical transmission components undergo specialized heat treatment for enhanced strength, while optimized clearance and preload control further improve structural stability. Even under frequent and severe load fluctuations, the precision screw assembly maintains its original lead accuracy and engagement stiffness, minimizing the risk of tooth damage, bending, and fatigue failure. This ensures reliable operation and enhanced safety under demanding working conditions.
3. Long Service Life
To meet the demands of high-intensity industrial production, the cylinder body is equipped with standardized interfaces for forced lubrication and circulating cooling. These systems actively dissipate frictional heat generated in the screw assembly and bearing chamber during high-speed, heavy-load operation, effectively limiting the impact of thermal expansion on positioning accuracy. Combined with an automatic supply system using high-temperature, wear-resistant grease, the electric cylinder is designed for stable operation under full load. Bench fatigue testing has demonstrated a designed mechanical life exceeding one million reciprocating cycles under rated dynamic load conditions. The extended maintenance intervals compared with conventional hydraulic cylinders further reduce lifecycle maintenance and operating costs.
4. Absolute Position Holding
An integrated high-torque, multi-disc friction brake provides millisecond-level response. In the event of control-system power loss or an emergency stop, the brake engages immediately to mechanically lock the actuator at zero speed. The braking torque is precisely matched to the load requirements and is sufficient to prevent the cylinder rod from creeping, descending, or reversing under maximum static load due to gravity or external forces. Combined with real-time feedback from an absolute encoder, the system can maintain a rigid position lock at any point along the stroke without continuous power supply. This makes the electric cylinder particularly suitable for vertical applications such as heavy workpiece lifting and elevated platform support, providing a reliable mechanical safeguard for both personnel and equipment.
The E Series is a modular product integrating a servo motor and ball screw, offering three load-based configurations. The EHR is designed for heavy-load applications, with a thrust capacity of less than 50 tons. From a technical perspective, the key advantages of electric cylinders lie in their integrated electromechanical design. They can achieve repeatability of ±0.01 mm while combining low inertia with high mechanical stiffness, maintaining low noise and fast dynamic response during rapid acceleration and deceleration. With an integrated force sensor module, thrust control deviation can be reduced to within 1%. Unlike conventional fluid-powered systems, electric cylinders eliminate complex compressed-air piping and hydraulic power units by using a servo motor as the direct power source. This architecture provides the flexibility required for multi-axis coordinated interpolation and user-defined motion profiles. Mechanically, the cylinder supports multiple mounting configurations, including front and side mounting, while optional I/O expansion boards and fieldbus interfaces enable efficient communication with the control system. During operation, there is no risk of working-fluid leakage, while energy consumption is significantly lower than that of comparable fluid-powered solutions. Combined with IP66 protection, the electric cylinder can operate reliably in demanding environments with high levels of contamination and humidity. Maintenance is largely limited to periodic relubrication of the guide and screw assembly, reducing the risk of unplanned downtime and lowering spare-parts inventory costs. For these reasons, electric cylinders have become widely used in robotics, automotive manufacturing, 3C electronics, automated production lines, AGVs, and other industrial applications, offering a compelling alternative to conventional pneumatic and hydraulic actuators.

