KJT limit switches are a type of position switch, also known as travel limit switches, and are commonly used as low-current control devices. They use the mechanical contact of moving machine parts to actuate the contacts, making or breaking the control circuit to achieve the required control function. To meet the needs of different industries, KJT develops and manufactures high-temperature, explosion-proof, waterproof, dual-circuit and other limit switch models, suitable for various operating environments and designed to meet both standard and special production requirements.
Benefits
Used to detect travel endpoints, start/stop positions, and precise positioning in mechanical equipment, such as machine tool tables and robotic arm travel limits.
Controls equipment travel to prevent overtravel, structural collision, or component damage, ensuring machines operate along the preset path.
Emergency stop triggering: when equipment doors are not fully closed or safety guards are not reset, the switch cuts off the power supply.
Overload protection support: works with the control system to stop equipment via travel signals when jamming or abnormal loads occur, helping prevent motor overload and burnout.
Serves as a process switching signal source in assembly lines and automated production lines, triggering the next step when materials reach position.
Enables coordinated operation between devices by sending signals to other actuators after mechanical parts reach position, keeping automation processes smooth and efficient.
Continuously monitors the motion status of mechanical parts and determines whether parts are jammed, worn, or displaced based on switch signal triggering.
Provides timely abnormal status feedback, such as incomplete travel or untriggered switches, to support troubleshooting of transmission and actuator faults.
Limit switches are installed along both edges of the conveyor belt to monitor real-time belt deviation. When the belt contacts the switch, a signal is immediately sent for automatic correction or emergency shutdown, preventing material spillage and belt tearing while ensuring continuous operation.
Limit switches are installed at the upper and lower endpoints of lifting equipment travel. If the equipment exceeds its normal operating range, the switch is forcibly triggered to cut off drive power, preventing hook overtravel or elevator car bottom impact and protecting the mechanical structure.
Limit switches detect and confirm whether workpieces, pallets, or products have accurately reached designated stations, such as clamping, machining, or assembly points, providing a precise signal to start the next operation.
Technology
Based on mechanical contact or non-contact triggering, with minimal travel error and stable feedback of equipment displacement or position status.
Fast, delay-free triggering accurately matches real-time control needs such as equipment start/stop and travel limiting.
Rugged structure withstands vibration, dust, high and low temperatures, humidity, and other harsh industrial conditions with strong interference resistance.
Long mechanical life, with some models rated for over one million operations, low wear, reduced maintenance frequency, and strong long-term stability.
Directly links with the control system to enable quick emergency stops and interlock protection, reducing risks of overtravel, collision, or operator error.
No complex commissioning is required; once connected to the circuit, the switch quickly establishes an equipment safety protection mechanism.
