Ensuring building safety is of paramount importance. Emergency exits in retail stores, restaurants, entertainment venues, offices, and corporate facilities are typically equipped with automatic doors. Delayed egress locks—advanced electromagnetic locks designed specifically for these exits—integrate countdown timers, exit sensors, and local alarms (often linked to fire alarm systems). They enforce preset delay periods to deter non-urgent exit use while allowing normal evacuation once the delay expires.
SXEGL hybrid linear stepper motors have become core components in various delayed egress lock systems.
• Low-Noise Operation: Quiet actuation to avoid disruption in office, medical, or other noise-sensitive environments
• Power Failure Resilience: Low-power operation during building power outages to maintain system functionality
• Compact & Thermal Efficiency: Reduced mechanical footprint and heat generation for tight installation spaces
• Emergency Compliance: Final products must meet UL 305 (electromagnetic lock) and 10C (fire safety) certification standards
• Environmental Adaptability: Compliance with eco-friendly requirements (e.g., RoHS) and resistance to vibration/impact
• Anti-Interference Stability: Immunity to external electromagnetic or mechanical interference during operation
• Ultra-Compact Design: Support for 50x50mm panic bars and 20x20mm small-latch installations
This series features a compact form factor, combining high performance with exceptional durability. The core hybrid actuator directly drives a rotor nut via a precision stainless-steel trapezoidal lead screw. A patented screw-nut interface minimizes tolerance accumulation and operational noise while improving transmission efficiency and component lifespan.
Available in 15-37mm sizes with varying force outputs, these motors support three configurations: fixed-shaft, through-shaft, and external-drive. All models are customizable to meet specific application requirements.
• Multi-Configuration Options: Three mechanical designs for diverse installation scenarios
• High Precision Control: Linear step accuracy ranging from 3 to 400 microns, suitable for both coarse and fine adjustments
• Longevity: Dual-ball bearing design enhances motion precision and service life
• Customization: Optional black-ice coated lead screws for corrosion resistance, with customizable nuts and configurations
Beyond emergency exits, delayed egress locks provide behavioral constraint and safety alerts in additional scenarios:
• Healthcare Facilities: Alerts staff to patients attempting unauthorized departure
• Schools & Childcare Centers: Prevents child abduction or unaccompanied leaving, strengthening supervision
• Retail Stores: Deters shoplifting through delay and alarm functions
• Airport Facilities: Locks gates to airside areas with delay settings, blocking unauthorized access
As more enterprises adopt delayed egress systems, SXEGL continues to deliver high-performance actuators and motion control solutions tailored to diverse application needs—empowering safety worldwide.
For more information on how SXEGL linear stepper motors can optimize your delayed egress system design, contact us today!
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