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SoftForce® High-Precision Force Control Force control accuracy up to ±0.01 N Meets stringent force-control requirements

Core Technology Introduction

CORE TECHNOLOGY INTRODUCTION

SoftForce® Precision Force Control is one of RobustMotion’s industry-leading core technologies. It combines an efficient model predictive control algorithm developed by RobustMotion with a high-stiffness force sensor, achieving a control processing frequency of up to 10,000 Hz, or 10,000 calculations per second. Electric actuators equipped with SoftForce® can achieve force control accuracy of up to ±0.01 N (1‰), enabling precise control without overshoot even at high speeds.

Through real-time feedback and intelligent adjustment, SoftForce® ensures smooth, accurate motion while significantly improving production efficiency and product quality. The technology is also easy to integrate and maintain, offering a better cost-performance ratio and lower operating costs.

SoftForce® Precision Force Control is highly flexible and adaptable, meeting stringent precision motion-control requirements across industries. It is particularly suitable for ultra-precision assembly, handling, and inspection of high-value or fragile workpieces. Customers can select the SoftForce® precision force control electric actuator series that best meets their application requirements.

SoftForce® electric actuators can also be freely combined into multi-axis precision force control robots. They support extensive secondary development to address force-control challenges in critical high-end manufacturing processes.

Industry-Leading SoftForce® High-Precision Force Control Technology
  • ±0.01 N Force Accuracy
  • 10,000 Hz Ultra-High ProcessingFrequency
  • No Overshoot At High Frequencyand Speed
  • Speed andPrecision BalancedPerformance
  • Microsecond-Level InstantaneousForce Feedback
  • ConstantMicro-Force Even UnderHeavy Loads

Comparison of Three Force Control Methods

SoftForce® Precision Force Control differs from conventional current-loop and sensor-based force control solutions. RobustMotion’s independently developed SoftForce® 3.0 high-precision force control system resolves the traditional trade-off between force output and speed. Even at high speeds, the system maintains stable, highly precise force output (up to ±0.01 N) and effectively absorbs impact forces, ensuring no overshoot during high-frequency, high-speed motion.

SoftForce® High-Precision Force Control

Force accuracy: ±1‰ / ±0.01 N

  • High, balanced performance across all six indicators

Conventional Sensor-Based Closed-Loop Force Control

Force accuracy: ±1%

  • Difficult to control; prone to overshoot

Current-Loop Force Control

Force accuracy: ±5–15%

  • Low force control accuracy; prone to overshoot

Faster — High-Speed Response for Better Performance

High-speed response enables exceptionally precise force, position, and speed control.

Softer — Real-Time Force Feedback and High Compliance

When handling fragile or delicate workpieces, the actuator immediately activates flexible force control if excessive force is detected, reducing damage caused by overshoot.

High-Frequency, High-Speed Motion Without Overshoot

Based on the SoftForce® 3.0 high-precision hybrid force control algorithm, F/HF Series actuators maintain high force accuracy during high-frequency, high-speed motion while ensuring soft landings without overshoot for maximum workpiece protection.