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GQ19
TACLEX
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Product Overview
The GQ19 Series is a Φ19mm metal emergency stop pushbutton switch engineered specifically for critical safety applications. Featuring a large mushroom‑head actuator, it ensures that operators can trigger a stop command in the fastest and most intuitive way during an emergency. With a mechanical life of one million cycles and an electrical life of 100,000 cycles as its core strengths, the switch is available in a variety of metal bezel materials – including stainless steel, chrome‑plated brass, and colored aluminum alloy – combining industrial aesthetics with structural robustness. Whether deployed in life‑support systems of medical equipment or in power control circuits of industrial production lines, the GQ19 series stands as the last line of defense for personnel and equipment safety, delivering reliable "one‑touch stop" performance.
Technical Parameters
1. One Million Mechanical Cycles – Safety Without Degradation
With a mechanical life of ≥1,000,000 cycles and an electrical life of ≥100,000 cycles, the GQ19 series far exceeds industry averages. Throughout the entire service life of the equipment, the emergency stop function does not degrade due to frequent testing or accidental actuation, ensuring reliable performance at every critical moment.
2. Large Mushroom‑Head Design – Zero Error in Emergency Operation
The large‑diameter mushroom‑head actuator offers a significantly larger operating surface than ordinary pushbuttons. Even when wearing gloves, with limited visibility, or in a panicked state, operators can quickly locate and actuate it by touch alone, minimizing emergency response time to the greatest extent.
3. Dual‑Mode Actuation Mechanism – Flexible Safety Strategy Adaptation
Two operating modes are available – Reset (momentary) and Latching:
Reset (Momentary): Press to make/break contact; release to automatically return. Ideal for applications requiring quick reset and restart.
Latching: Mechanically locks when pressed; requires twisting or pulling to unlock, preventing inadvertent recovery that could lead to secondary hazards.
4. All‑Metal Housing Matrix – Combining Aesthetics with Durability
The actuator cap is available in stainless steel or aluminum alloy, while the housing offers three options: chrome‑plated brass, stainless steel, and colored aluminum alloy. This meets both the clean‑room aesthetic requirements of medical equipment and the corrosion‑resistant, impact‑resistant needs of industrial environments.
5. Tolerance for Harsh Conditions
Vibration Resistance: Withstands approx. 1.2 mm amplitude at 50 Hz, suitable for machine tool cutting vibrations and transport jolts.
Shock Resistance: Withstands acceleration shock >10g, ideal for heavy‑duty applications such as mining and construction machinery.
Wide Temperature Range: Stable operation from ‑25°C to +55°C, covering most indoor and semi‑outdoor working conditions.
Applications
Medical Equipment:
Emergency stop buttons for surgical lights, anesthesia machines, hemodialysis equipment, and CT/MRI scanners. The metal housing facilitates easy cleaning and disinfection, meeting medical‑grade hygiene standards.
Industrial Automation:
Emergency stop circuits on CNC machine tools, injection molding machines, and stamping robots. The latching type prevents inadvertent reset that could cause secondary injuries.
Packaging Machinery:
Safety door interlocks and emergency stop controls on filling machines, sealing machines, and labeling machines.
Food Processing:
Emergency braking on mixers, slicers, and baking lines. Stainless steel construction complies with food‑contact safety requirements.
New Energy Equipment:
Emergency power‑off on photovoltaic inverters and energy storage systems. The large mushroom‑head actuator facilitates rapid operation.
Elevators & Escalators:
Emergency stop buttons inside elevator cars. The latching design prevents passengers from inadvertently restoring operation.
Laboratory Instruments:
Safety emergency stops on centrifuges, reactors, and autoclaves. Chemical‑resistant housings adapt to reagent‑exposed environments.
