1. What is a sorting trolley?
sorting trolley is the execution unit that directly carries, transports and delivers packages in the automated sorting system. It is like the "intelligent porter" in the sorting system, running on the circular track, accurately delivering the package to the designated grid. Each sorting trolley is an independent intelligent unit, equipped with its own drive system and control system.
2. sorting trolley
According to the length of the carrying surface of the sorting trolley, it is mainly divided into the following four specifications:
1.200mm and 300mm pitch trolley
Core Features : mainly used Narrow Band Sorting Machine , its core function is to support Multi-vehicle linkage . Multiple trolleys can work together to carry a larger package to achieve size parcels are efficiently sorted simultaneously on the same sorting line , the application scenario is far more extensive than single small piece sorting.
Applicable Scenarios : From envelope documents to medium-sized e-commerce packages, it can be handled flexibly and perfectly to cope with mixed package flows.
2.500mm pitch trolley
Core Features : mainly simple ring sorting machine design, using Cycling Independent Sports mode.
Applicable Scenarios : with its Low cost and compact structure , focusing on handling medium-sized packages, is the ideal choice for the automation upgrade of grass-roots outlets with medium business volume.
3.600mm pitch trolley
Core Features : mainly used Large circular cross belt sorter , also using Cycling Independent Sports is known for its high stability and large load capacity.
Applicable Scenarios : theoretical load-bearing weight in Within 25kg , it is the core equipment of the regional distribution center that is capable of sorting large packages such as large household appliances and heavy goods in boxes.
The working principle of 3. sorting trolley
sorting trolley can be summarized as "electric drum drive, accurate delivery":
drive system : Each trolley is equipped with a high-performance electric drum, which is driven by a motor to continuously roll the belt
cargo transfer : The package is kept relatively stationary on the belt of the sorting trolley and moves with the trolley
accurate delivery : When reaching the designated grid port, the control system instructs the belt to accelerate or turn, and the package is accurately put into the grid port.
Cycle operation : After the delivery is completed, the trolley continues to receive new sorting tasks cyclically.
this process is like a "moving assembly line", and each car is an "intelligent carrier" precisely controlled on this assembly line ".
4. PLC: the "intelligent brain" of the sorting trolley"
Each sorting trolley is equipped with a micro PLC (programmable logic controller), which plays the following key roles:
real-time positioning : Accurately calculate the position of the trolley through the encoder to ensure delivery at the correct grid.
speed control : Accurately adjust the speed of the electric drum to achieve smooth start and stop and accurate delivery
Status Monitoring : real-time monitoring of motor temperature, speed and other parameters to ensure the safe operation of equipment
Communications Coordination : Maintain real-time communication with the main control system, receive instructions and feedback status
fault diagnosis : Automatically detect abnormal conditions, timely alarm and take protective measures
5. Technology
modern sorting trolley has brought significant benefits:
Sorting accuracy should be verified against an agreed parcel range and test method. Identification, tracking and controlled discharge can reduce manual routing and delivery errors.
Whole-line throughput depends on cart pitch, running speed, induction capacity and destination availability; it cannot be specified from the cart alone.
Automation can reduce manual carrying and routing decisions, but staffing still depends on shifts, exception handling and chute collection.
Equipment can be planned for continuous operations while allowing scheduled inspection and maintenance windows.
Conclusion
From 200 pitch to 600 pitch, from electric drum drive to intelligent PLC control, the technological evolution of sorting trolley is the epitome of the development of logistics automation in China. With the continuous growth of express business volume and rising labor costs, these "intelligent porters" will play an increasingly important role in logistics cost reduction and efficiency. In the future, with the integration and application of new technologies such as 5G and artificial intelligence, the sorting trolley will be more intelligent and efficient, injecting new momentum into China's logistics industry.
Published on 2025-10-10. Product information reflects the publication date; contact us for current specifications and availability.