This solution consists of a **wireless shaft pin load sensor** and a matching handheld wireless display receiver. The pin sensor directly replaces the original load-bearing shaft pin of lifting equipment, capturing real-time tensile and shear load data via built-in strain gauges, then transmitting weight data wirelessly to the portable handheld instrument for instant on-site viewing, overload alarm and peak load recording. It is widely deployed in port, construction, factory heavy-lifting and marine hoisting scenarios to realize real-time load monitoring and anti-overload safety protection for all types of lifting machinery.
1.1 Wireless Shaft Pin Sensor
- Structural design: Adopts high-strength alloy steel integrated pin shaft structure, directly replacing the standard pivot pin of spreaders, crane lugs and hoist lifting points, no extra modification to the equipment frame, simple on-site replacement and installation.
- Load resistance performance: Excellent anti-unbalanced load and anti-fatigue capacity, can withstand long-term alternating impact load during lifting, stable measurement under partial eccentric hoisting conditions.
- Wireless transmission module: Built-in long-distance radio frequency transmission unit, eliminating cumbersome signal wiring, avoiding cable breakage and winding hazards during crane swing; fully sealed IP67/IP68 metal shell, waterproof, dustproof and anti-corrosion, suitable for outdoor port, rainy construction site environments.
- Built-in high-precision strain sensing chip, supporting real-time dynamic load sampling, capturing transient peak impact force during lifting and landing.
1.2 Handheld Wireless Receiver Instrument
- Portable touch color screen design, staff can hold it to view real-time load data on the ground without climbing high-altitude equipment; real-time display of current tonnage, load percentage, signal strength and battery status.
- Rich industrial working modes: Real-time load tracking, peak hold recording function, supports real-time peak lock or storage of up to 800 groups of peak load data, convenient for post-operation load data analysis.
- Customizable functions: Supports secondary function modification according to special working conditions, including overload sound & light alarm threshold setting, unit switching (ton/kg/lb), multi-language interface, data export to PC for report generation.
- Long battery life, rechargeable lithium battery for continuous all-day on-site operation.
2.1 Port & Container Terminal Hoisting
- Container spreader lifting monitoring: Install shaft pin sensors on the spreader lifting lug pins. During container grabbing and lifting, the handheld terminal synchronously displays the weight of single or double containers. Once overloaded, the handheld device triggers an alarm to prevent overweight containers from being hoisted onto ships or trucks, eliminating port cargo overload safety accidents.
- Dock bulk cargo hoisting: For bulk grain, mineral, steel coil hoisting gantry cranes, the pin sensor monitors dynamic hoisting load, records peak impact load during cargo grabbing, provides data basis for equipment fatigue maintenance.
- Ship loading & unloading marine cranes: The fully sealed sensor shell resists sea salt spray corrosion, stable wireless signal transmission in wide open dock areas, monitoring ship crane lifting tonnage to comply with port safety supervision standards.
2.2 Construction Engineering Lifting Machinery
- Tower crane load monitoring: Replace the tower crane trolley lifting pin with wireless pin sensor, construction ground operators hold the handheld receiver to check real-time lifting weight, avoid tower crane tipping caused by overload or eccentric hoisting.
- Rack-and-pinion construction elevator: Install pin sensors on elevator suspension lifting points, monitor passenger and material total load in real time, automatically alarm when exceeding the rated load, forbid elevator startup, protect construction personnel safety.
- Building hoist & small gantry crane: Used for steel bar, formwork, precast component lifting on construction sites, record peak load of heavy component hoisting, assist project managers to standardize hoisting operation management.
2.3 Factory Heavy Workshop Overhead Crane & Hoist
- Heavy machinery workshop overhead traveling crane: Installed on the lifting lug pin of crane hooks, real-time monitoring of mold, large casting, mechanical workpiece hoisting weight, prevent workpiece drop accidents caused by overload.
- Electric chain hoist & hydraulic lifting equipment: Small-size pin sensors adapt to miniature hoist lifting pins, used for assembly line heavy parts handling, record impact load during workpiece lifting and placement, optimize production hoisting process.
- Large equipment test bench: Matched with material testing machines, detect shear and tensile force of lifting assemblies, provide accurate load data for lifting equipment factory inspection and strength verification.
2.4 Special Heavy Lifting Industry
- Wind power equipment hoisting: For wind turbine blades, tower cylinder heavy lifting, the pin sensor bears large tonnage alternating load, stably transmits load data to ground handheld terminal, guarantee safe hoisting of ultra-large wind power components.
- Metallurgy & steel plant steel coil lifting: High temperature resistant customized pin sensors adapt to steel mill high-temperature workshop environment, monitor hot steel coil hoisting load, avoid steel coil slipping due to overload.
- Offshore engineering hoisting: Anti-corrosion marine grade pin sensor, suitable for offshore platform lifting equipment, resist seawater corrosion and strong wind vibration, realize remote wireless load monitoring.
1. Overload Risk Elimination**: Real-time load digital display + overload sound-light alarm, fundamentally prevent safety accidents such as crane tipping, workpiece falling and equipment structural damage caused by overload hoisting.
2. Low Renovation Cost**: Direct replacement of original shaft pin, no need to cut or weld the crane frame, short installation time, no large-scale transformation of existing lifting equipment.
3. Wireless On-site Convenience**: Ground staff can view load data without climbing high-altitude cranes, reduce high-altitude operation risks; no signal cables, avoid cable winding and abrasion damage during crane rotation and swing.
4. Equipment Fatigue Predictive Maintenance**: Automatically record peak impact load data of each hoisting cycle, count long-term alternating load data, judge the fatigue degree of crane structural parts, arrange maintenance in advance to extend equipment service life.
5. Compliance Safety Supervision**: Complete load storage records can be exported as safety inspection data, meet port, construction and special equipment supervision department safety filing requirements.
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