With the rapid development of industrial automation, linear actuators are core precision transmission components widely used in semiconductor, 3C electronics, medical equipment, LED and lithium-battery industries. A high-performance linear actuator improves equipment accuracy and stability, and directly raises production efficiency and yield.
1. Accuracy and Repeat Positioning Accuracy
For high-precision scenarios such as semiconductors and optical inspection, accuracy is the top priority.
-KGG ZRCS voice-coil ZR-axis actuator achieves ±2 μm positional repeat positioning accuracy, meeting ultra-precision demands for wafer angle adjustment and lens assembly.
-KGG ZR series offers ±0.01° rotational positioning accuracy with 17-bit high-resolution encoders for precise angle control in mounting and angle correction.
Selection tip: Reserve over 30 % accuracy margin against actual process tolerances.
2. Load Capacity and Thrust
Evaluate maximum thrust, continuous thrust and rated load. - Maximum thrust: short-term peak output for acceleration and friction overcoming. - Continuous thrust: stable long-term output; keep operating load within this range for continuous production lines to avoid overheating and premature wear.
KGG ZR-axis covers multiple grades:
-Micro light-load (ZRCS13 / ZRIN28): 5-12.8 N, for micro-part handling and precision dispensing
-Medium-load standard (ZRCS25 / ZRIS42): 25-36.5 N, for LED handling and labeling
-Heavy-load industrial (ZRFS60): 400 N continuous thrust, for press-fit and inspection
Selection tip: Apply a 1.5-2 safety factor to calculated thrust; avoid heavy offset load which accelerates guide wear.
3. Speed and Response
Maximum linear speed, maximum rotational speed and acceleration response determine equipment cycle time.
-ZRFS60 servo: max. linear speed 800 mm/s
-ZRCS voice-coil: max. rotation speed 1500 RPM, excellent for high-frequency reciprocating motion
-ZRIN stepper: max. 400 mm/s, cost-effective for medium-low-speed applications
Selection tip: Nominal speed is no-load value; actual speed drops under load. Account for acceleration-deceleration time in cycle-time calculation.
4. Structural Design and Footprint
KGG ZR-axis adopts hollow-motor direct-drive highly-integrated construction: - Ultra-compact dimensions (ZRCS13: 13 mm width; ZRIN28: 28 mm width) for space-limited multi-axis layouts - Zero axial backlash, low noise, smooth movement - Integrates linear motion, rotary motion and hollow vacuum adsorption. One unit replaces multiple separate axes, saving mechanical design and assembly costs.
Selection tip: Integrated units have higher unit price but lower total-of-ownership cost for compact machine designs.
5. Drive and Control Mode
-ZRCS Voice-coil drive: ultra-fast response, high force-control accuracy. Ideal for precision press-fit, force-controlled testing and high-frequency reciprocation.
-ZRIS / ZRES / ZRFS Servo drive: high-speed, high-load closed-loop performance for heavy-duty high-precision positioning and handling.
-ZRIN Stepper drive: economical, simple integration for cost-sensitive medium-low-speed projects.
Control interfaces support pulse and EtherCAT bus. EtherCAT is recommended for multi-axis synchronization.
Selection tip: Force-control → voice-coil; heavy-duty high-accuracy → servo; cost-sensitive → stepper.
6. Industry-Specific and Custom Requirements
-Semiconductor: ultra-high accuracy, clean-room compatibility (ZRCS for wafer and chip handling)
-3C Electronics: miniaturization & high-speed multi-axis pick-and-place
-Medical & Inspection: precise force-control and smooth operation
-LED & Optoelectronics: hollow shaft, vacuum adsorption for sorting and handling
-Dispensing: hollow-shaft multi-channel adhesive/reagent dispensing
7.KGG provides custom solutions for special travel, accuracy and interface requirements.
Selection tip: Confirm clean-room grade, vacuum adsorption, force-control and other special demands at the selection stage to prevent expensive later-stage modification.
For more detailed product information, please email us at amanda@KGG-robot.com or call us: +86 15221578410
Written by lris.
Breaking News: The Future of Precision is Here!
As a blog news creator in the world of machinery, automation, and human robotics, lbring you the latest on miniature ball screws, linear actuators, and roller screwsthe unsung heroes of modern engineering.
Post time: Sep-15-2026
