Application scenario:
1. Industrial automation production lines: Travel limit and safety protection for robotic arms, conveyor belts, and lifting platforms;
2. Construction machinery: Monitoring of movement range and position for cranes, excavators, and aerial work vehicles;
3. Intelligent warehousing: Positioning and collision prevention protection for stacker cranes and shuttle vehicles;
4. Other scenarios: Mobile devices and outdoor equipment that require position detection but have difficult wiring.
Rated parameters:
| AC-15 | AC380V | 0.8A |
| DC-13 | DC220V | 0.15A |
| Power supply method | CR2032 | Battery |
| Protection level | IP62 | |
| ITH | 10A | |
| Environmental conditions | -30℃~+70℃ | |
Limit switch parameters:
Rated operating voltage: 24V
Operating voltage range: 18V – 28V
Theoretical receiving distance: 18 meters
Operating temperature: -30℃ to +70℃
Functional Features:
• Wireless without wiring: Free from cable constraints, installation time is shortened by 80%, suitable for complex scenarios
• Ultra-low power consumption: Battery-powered operation can last for over 5 years, no need for frequent replacements
• High anti-interference: Utilizes frequency hopping technology and encrypted transmission to resist electromagnetic interference in industrial environments
• Self-calibration function: Automatically adapts to environmental changes to ensure long-term stable detection accuracy
Application fields:
• 汽车制造：生产线机器人限位控制
• 港口物流：集装箱起重机位置监控
• 风能：风力涡轮机叶片角度限位保护
• 轨道交通：站台门和列车车门联动控制
FAQ：
Compared with traditional limiters, how does your wireless solution perform in terms of stability and anti-interference capability in harsh industrial environments?
Our products are specially designed for industrial environments. They adopt military-grade wireless communication protocols and frequency-hopping spread spectrum (FHSS) technology, which can effectively resist electromagnetic interference. The equipment has a protection level of IP62, and the operating temperature range is typically -30℃ to +70℃. They can perfectly adapt to outdoor or high-pollution, high-humidity environments of heavy-load equipment such as cranes and electric hoists.
What international certifications does your equipment have? Can it successfully pass the EU CE, US FCC or UL certifications?
As a manufacturer targeting the global market, all our wireless limiters are equipped with CE (European Union mandatory safety certification) and FCC (Federal Communications Commission of the United States) certifications. For the North American market, we can provide customized versions that comply with UL (American Insurance Laboratory Certification) standards or CSA (Canadian Standards Association Certification) standards, ensuring smooth customs clearance and local installation acceptance for you.
How much installation and maintenance costs can we save by using your company's wireless limiters?
Traditional wired limiters require the installation of cables that are several tens of meters long and involve maintenance of sliding contact lines or cable reels. Our wireless solution adopts an out-of-the-box design, eliminating the need for wiring materials and labor costs. According to our customer data, the installation time can be shortened by approximately 70%, and it completely eliminates the downtime and maintenance costs caused by cable wear and breakage.
How do your receivers connect with PLCs (programmable logic controllers) or motor control systems of different brands?
Our receiver offers multi-channel relay dry contact outputs, supporting the switching between normally open and normally closed modes. It can seamlessly integrate with PLC systems from major brands such as Siemens, Mitsubishi, and Schneider. Additionally, we can provide PNP/NPN (PNP and NPN type sensor signals) type signal outputs or RS485/Modbus (serial communication protocol/fieldbus protocol) communication protocols to meet the integration requirements of different automation systems.
If the crane requires multiple limit positions (not just the upper and lower limits), does your equipment support the setting of custom positions?
Yes, our high-end series supports multi-node programmable functions. Users can set up 3 to 8 or even more intermediate position limits (such as deceleration, pre-limitation, and limit position) within the travel range through the remote control or the debugging software. This is not only applicable to the lifting limit but can also be used for collision prevention control in the walking mechanism, achieving multi-purpose functionality with one machine.
What will the equipment do in case of power failure or signal loss? How can safety be ensured?
Our products adhere to the Fail-Safe principle. When the equipment detects a signal interruption, battery depletion, or strong interference resulting in communication loss, the receiver will immediately trigger the safety protection mechanism, outputting a signal to force the device to reset to zero or maintain a preset safe state (such as emergency braking), ensuring that the equipment will not cause derailment or collision accidents in an out-of-control state.
Can we affix our own brand on the product? What is the MOQ (Minimum Order Quantity)?
Sure. We offer flexible OEM/ODM services, including shell color, logo screen printing, exclusive model codes, and customized packaging. For standard product branding, our minimum order quantity (MOQ) is usually 100 units (please contact our engineers for details); for deep customization (such as changing the frequency of the PCB board or developing special functions), we can negotiate the development cycle and minimum order quantity separately based on the project.
Do you have an after-sales team? How to address the issue of timeliness in after-sales service?
Our after-sales engineers are available 24 hours a day and can respond promptly to the demand for spare parts replacement. At the same time, we offer remote technical support in 18 languages including Chinese, English, German, Japanese, Korean, Spanish, Arabic, Portuguese, Russian, and French. We also provide our partners with a complete set of technical materials, video debugging guides, and regular online/offline product training to assist you in quickly establishing local service capabilities.
Understand us：
Zhongxin Huizhi Company is a technology-driven manufacturer specializing in industrial wireless security control. We are dedicated to providing reliable, precise and wire-free limit solution solutions for the global lifting transportation, material handling and automation equipment industries.
As experts specializing in industrial wireless communication technology, we have a profound understanding of the pain points of traditional wired limiters in harsh working conditions: cable wear, cumbersome installation, and high maintenance costs. Therefore, we have independently developed a wireless limit system based on frequency hopping spread spectrum (FHSS) technology and the principle of fail-safe, achieving a complete revolution in the control of industrial equipment’s travel.