TC110 Mechanical temperature switch

1. Fuel tank temperature monitoring and control

Function: High-temperature alarm

Action: When the oil temperature rises to the preset alarm value, the normally open contact closes, connecting the alarm circuit (sound and light alarm) to alert the operator to pay attention.

Function 2: Over-temperature shutdown protection

Action: When the oil temperature continues to rise to a more dangerous set value, the normally closed contact opens, cutting off the main motor control circuit and forcing the hydraulic pump or the main unit to shut down. For such applications, it is strongly recommended to use the manual reset type to prevent the device from automatically restarting before the fault is eliminated.

Function 3: Low-temperature start-up protection/Heater control

Action: In a cold environment, if the oil temperature is too low, it will cause the viscosity to be too high, making it difficult for the pump to draw oil and resulting in cavitation damage. At this point, the specially set low-temperature switch (normally closed type) closes its contacts at low temperatures, automatically connecting the oil tank heater. When the oil temperature rises to the appropriate range, the contact opens and the heating stops.

2. Temperature monitoring of return oil pipeline

Installed on the return oil line of the main system, it is used to monitor the temperature of the oil that has been heated up after the system has done work.

Function: More directly reflect the working temperature rise of the system core. The cooling system can be interlocked and controlled.

3. Temperature monitoring of key friction pairs

It is installed at positions such as bearing housings and gearbox housings close to key friction pairs.

Function: Directly monitor the temperature rise of components such as bearings and gears. Once abnormal temperature rise occurs due to poor lubrication, excessive load or installation problems, the switch will act and alarm to stop the machine, protecting these expensive and core components.

4. Interlocking control of the cooling system

Function: Linked with the high-temperature alarm signal of the fuel tank or return oil circuit. When an alarm signal is issued, the fan of the air cooler or the solenoid valve of the water cooler is automatically activated to forcibly cool the system.

5. Bimetallic strip type temperature switch

Application scenarios

Small equipment: Small hydraulic station, lubrication pump unit.

Motor winding overheat protection: Directly embedded in the motor winding, it protects the motor itself (although it does not directly belong to the hydraulic system, it is the drive part).

Cost-sensitive applications: Due to its lower cost, it still has applications in places where precision and remote installation requirements are not high.