Blog

Ever noticed your lawn mower running hotter during the summer? With longer daylight hours and rising outdoor temperatures, mowing equipment works harder — and faces much greater thermal stress. Whether you’re using a gas-powered model or a battery-powered electric mower, extended use under the sun can push internal components to their thermal limits.

But what keeps these machines safe, efficient, and reliable despite the heat?The answer lies in temperature sensors — small but essential components that monitor and manage heat in real time.

The Thermal Challenge in Lawn Equipment.

During operation, lawn mowers generate heat from multiple sources: the motor windings, battery cells, power electronics, and control boards. In hot weather, this heat accumulates quickly, increasing the risk of:

• Motor overheating or burnout.
• Battery degradation and shortened life.
• Circuit board failure.
• Sudden shutdowns or performance loss.

Over time, repeated thermal stress can lead to early component aging, more frequent repairs, or even safety hazards.

How NTC Temperature Sensors Help?

NTC (Negative Temperature Coefficient) thermistors are a type of thermal sensor that decreases in resistance as temperature increases. In lawn mowers, they are strategically installed near:

• Motor windings.
• Battery packs.
• Control PCBs or power regulators.

As the internal temperature rises, the thermistor detects the change and sends a voltage signal to the control unit. The system can then automatically reduce motor load, slow the cutting blades, activate cooling fans, or trigger a controlled shutdown — all without user intervention. This real-time protection ensures consistent performance, prevents overheating, and extends the operational lifespan of the equipment.

Built for Harsh Outdoor Conditions.

 Lawn mowers operate in rough environments — dust, vibration, humidity, and constant temperature swings. That’s why the sensors used must be durable and stable.

 Glass-encapsulated NTC thermistors, like the MF58 series from Nanjing Shiheng Electronics, are ideal for this task. They provide:

• Fast thermal response.
• Long-term stability.
• Moisture resistance.
• Shock and vibration tolerance.

Their compact size allows seamless integration into tight spaces within the mower’s electrical system.

Smarter Lawn Care Starts with Better Sensing.

As lawn care equipment becomes more advanced and energy-efficient, precise temperature control is no longer optional — it’s a design standard. Whether you're an OEM, a design engineer, or a component buyer, choosing the right thermal protection makes the difference between long-lasting tools and avoidable failures.

At Nanjing Shiheng Electronics, we offer a wide range of reliable, customizable NTC temperature sensors built for outdoor and motor-driven applications. Our thermistors are trusted in power tools, garden equipment, and smart home appliances around the world.

Ready to protect your mower designs from summer heat? Contact us today for datasheets, samples, or engineering support.