Progressive Elevator Safety Gear Reliable Overspeed Protection SN-SG-L22
The Progressive Elevation Safety Gear is a critical safety component designed to protect elevator passengers by preventing uncontrolled descent in case of overspeed. Installed on the elevator car, it operates smoothly during normal conditions but instantly engages when excessive speed is detected, clamping onto the guide rails with precision-engineered friction to bring the elevator to a controlled stop.
Engineered for reliability and compliance with international safety standards, our safety gear ensures maximum protection for both passengers and elevator systems.
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✔ Automatic Overspeed Activation – Triggers only when necessary, ensuring smooth operation under normal conditions.
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✔ High Friction Clamping – Secures the elevator car onto guide rails, preventing free-fall accidents.
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✔ Durable & Low Maintenance – Built for long-term reliability with minimal servicing requirements.
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✔ Wide Compatibility – Suitable for various elevator speeds and load capacities.
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✔ Certified Safety Compliance – Meets GB standards for elevator safety components.
| Certification | Rated Speed (m/s) | Max Load (P+Q) (kg) | Guide Rail Width (mm) | Model |
|---|---|---|---|---|
| GB | 0.25 – 4.0 | 2000 – 7450 | 15.88 / 16 / 19 | SN-SG-L22 |
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Normal Operation: The safety gear moves smoothly along the guide rails without interference.
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Overspeed Detection: If the elevator exceeds the safe speed limit, the safety mechanism is triggered.
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Controlled Braking: The clamp applies progressive friction to the rails, bringing the elevator to a safe stop.
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Passenger Elevators
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Freight Elevators
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Hospital & Service Elevators
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High-Rise & Low-Rise Buildings

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