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How Much Do You Know About Aggregate Batching Machine
Aug 13, 2025
The aggregate batching machine is a key piece of equipment in a stationary concrete plant, , controlling the first critical step in concrete production. Its high-precision metering capabilities are essential for ensuring consistent concrete quality. If the batching process deviates, subsequent mixing will not produce concrete that meets standards.
Structure and Working Principle
1. Structure
The feeding system consists of a hopper and a feeding device. The hopper is used to store materials, with the quantity and capacity determined by the scale of the batching machine and production requirements. The feeding device, under control of the control system, transports materials to the weighing hopper. Small batching machines (such as the PLD800-1200) often use a belt conveyor for feeding, while larger batching machines may employ pneumatic valves.
The weighing system is the core component, consisting of a weighing hopper, a suspension device, a weighing sensor, and a batching controller. The weighing hopper receives the material, while the suspension device ensures its stability. The weighing sensor senses the material weight in real time and transmits a signal to the batching controller for processing.
The electrical control system is the control core of the batching machine, responsible for weighing, displaying, operating, and automatically executing the batching program. It consists of a batching controller and a high-voltage circuit. After the operator inputs parameters, the control system coordinates the various components to complete automated batching.
2. Working principle
Before operation, sand, stone, and other materials are added to the storage hopper using a loader (manual operation is optional for underground installations). The operator enters the concrete formula according to the instructions, setting unused materials to zero.
Pressing the batching button initiates the automatic batching process: the conveyor for Material I starts, conveying Material I to the weighing hopper, stopping when the set weight is reached. The conveyor for Material II then starts, stopping when the sum of the set values for Materials I and II is reached. The conveyor for Material III then starts again, continuing until all materials have been batched.
The batching machine then waits. Pressing the discharge button causes the discharge conveyor to discharge the materials into the mixer hopper. Once discharge is complete, the discharge conveyor stops, and the next batching cycle automatically begins, ensuring continuous operation.
Technical Features
High-Precision Measurement: Utilizing advanced electronic weighing sensors, the system achieves static weighing accuracy of Class 4 with an error of less than 0.1%.
Advanced A/D Converter Chip: Some high-quality batching machines utilize a 24-bit incremental modulation A/D converter chip. Compared to voltage-frequency conversion or dual-integral A/D converters, this chip offers higher accuracy, faster sampling, smaller temperature drift, and more reliable long-term operation, ensuring system stability.
Comprehensive protection and detection functions: It features fully automatic overcurrent, overvoltage, and lightning protection, eliminating the need for manual intervention. Sensor faults are automatically detected, displaying signal voltage for easy troubleshooting. Input and output self-test functions facilitate debugging and troubleshooting, improving maintenance efficiency.
Comprehensive Recipe Management: The recipe management system permanently stores multiple concrete recipes, providing clear display and easy modification. Operators can quickly access or modify them, improving efficiency.
Automatic Drop Control: A weighted correction algorithm is used to automatically correct drop, ensuring accurate calculations and preventing oscillation. The weighing hopper can display its maximum load capacity and generate an alarm when overloaded, ensuring safe operation.
Password Protection: Key operations such as scale calibration, system configuration parameters, and recipe settings require a password to prevent unauthorized changes, ensuring stable operation and data accuracy.
Automatic tare and status memory: Automatic tare removal during batching eliminates material sticking and drift, improving accuracy.
Model Parameters
The aggregate batcher come in many models, each with different parameters to suit varying needs. Common models include the PLD800, PLD1200, and PLD1600. As the model number increases, parameters such as weighing hopper capacity, storage hopper capacity, and productivity increase accordingly. Users can choose a model based on their production scale.
How to choose
Weighing accuracy: This is a key indicator. The smaller the error, the more stable the concrete quality. Select equipment with a static weighing accuracy of Class 4 and a dynamic measurement error of less than 2% to ensure precise mix ratios.
Capacity Matching: Select specifications based on the mixing plant's capacity. For small mixing plants, consider models like the PLD800 and PLD1200, while for large plants, consider models like the PLD2400 and PLD3200. The number of materials that can be mixed must match the actual material needs.
Durability: The durability of key components affects service life and maintenance costs. Sensors, motors, and other components require reliable quality, high stability, and a long lifespan.
Intelligence: Customers can prioritize devices that support data networking, recipe storage, and automatic correction, enabling remote monitoring, rapid recipe recall, and real-time error correction.
Original source: https://www.concretebatchplanthm.com/a/how-much-do-you-know-about-aggregate-batching-machine.html