Unionwell - Micro Switch Supplier

Micro Switch Application in Power Tools

In the realm of power and gardening tools, efficiency, precision, and safety are paramount. From the robustness of power tools to the delicate handling required in gardening equipment, every component plays a crucial role in ensuring optimal performance. Among these components, micro switches stand out as fundamental elements, dictating the responsiveness and reliability of the tools they inhabit. Unionwell's series of micro switches - including G5, G5L, and G5W11 - have emerged as quintessential components, revolutionizing the functionality and safety standards of power and gardening tools.

Unionwell, a pioneering manufacturer renowned for its precision engineering and innovative solutions, has introduced the above mentioned basic micro switches with a keen focus on enhancing operational efficiency and user safety across various applications. These micro switches, designed to withstand rigorous conditions and deliver consistent performance, find extensive utility in power tools and gardening equipment, where reliability and precision are non-negotiable.

The application of Unionwell micro switches in power tools is transformative, enabling manufacturers to craft tools that are not only powerful but also responsive and safe. Whether it's electric drills, saws, sanders, or grinders, those micro switches ensure precise control over the tool's operation, enhancing user experience and productivity. The G5 micro switch, known for its compact design and high durability, is ideal for applications where space constraints and frequent usage demand reliability without compromise. Meanwhile, the G5L variant, with its long operating life and low operating force, caters to power tools requiring sustained performance over extended periods, ensuring uninterrupted operation even in the most demanding environments. Moreover, the G5W11 micro switch, with its waterproof and dustproof properties, is indispensable in outdoor power tools, safeguarding against environmental elements and prolonging the tool's lifespan.

Micro Switch Application in Power Tools


In the realm of gardening tools, where precision and finesse are essential for nurturing plant life, Unionwell's G5 series micro switches offer a myriad of benefits, elevating the functionality and safety standards of equipment such as lawn mowers, trimmers, and leaf blowers. The G5 series micro switches, engineered to deliver exceptional tactile feedback and superior contact reliability, facilitate precise control over gardening tools, enabling users to maneuver with ease and accuracy. Furthermore, the robust construction of these micro switches ensures resilience against vibrations and shocks, common occurrences in outdoor environments, thereby prolonging the lifespan of gardening tools and minimizing downtime.


One of the distinguishing features of Unionwell micro switches is their versatility, allowing seamless integration across a wide spectrum of power and gardening tools. Whether it's the high-precision operation required in power tools or the intricate control demanded by gardening equipment, our switches cater to diverse needs with unparalleled performance and reliability.


Beyond their technical prowess, Unionwell series micro switches underscore the company's commitment to sustainability and innovation. By optimizing the efficiency and safety of power and gardening tools, these micro switches contribute to reducing energy consumption and minimizing environmental impact, aligning with the evolving needs of the industry and society at large.


Unionwell is one of the most experienced micro switch manufacturers in China Mainland, we supply switches to many industries like automotive, home appliances, and also power tools.


As an ISO9001, IATF16949 and ISO14001 certified organization, we are able to produce switches and relevant modules fullfilling requirements of global safety certification like ENEC in Europe, UL/cUL in North Americas, and CQC in China.


We're long term supplier to many famous power tool makers like Positec, Greenwork and etc. Our products are feartured with equivalent performance and quality of A level brands such as Honeywell, Marquardt, Omron, ALPS, ZF, but more competitive pricing and more flexible lead time.


Micro Switch For Power Tools

How to select a micro switch for power tools

Power tools combine high current, heavy vibration and a user interface the operator feels directly through the trigger.

  1. Current rating and duty cycle — tool motors draw high current and the switch may be cycled thousands of times in a day. Rating and contact material must suit both.
  2. Trigger feel — operating force, pretravel and the snap point determine how the tool feels. Variation between units is noticed immediately by users.
  3. Dust and debris — sawdust, masonry dust and metal swarf enter unsealed housings. Sealed or dust-protected designs preserve the operating point.
  4. Vibration — continuous vibration must not shift the lever or wear the pivot. Check the actuator retention, not only the contact rating.
  5. Temperature rise — self-heating from the load plus the tool housing temperature can approach the switch limit in continuous use.
  6. Packaging for assembly — tape-and-reel or tray presentation reduces handling on automated lines.

Unionwell supplies basic and sealed switches for power tools and garden equipment, including high-current variants and custom levers matched to the trigger mechanism.

Frequently asked questions

What current rating is available for tool motors?

High-current variants in the basic switch range are available; the correct choice depends on the measured inrush and the duty cycle. Send the motor data and we will confirm.

Can the operating force be adjusted?

Yes. Operating force is set by the spring and contact geometry, so it can be specified within a range for volume orders.

Are sealed versions needed for garden tools?

Outdoor equipment sees rain and dust, so dust-protected or sealed designs are normally specified even when the tool itself is splash resistant.

Ask an engineer about your application