A precast concrete plant is a specialized facility for producing precast concrete components used in construction. It helps save time and costs, reduce labor requirements, and improve overall construction quality. The plant is designed for mass production of various concrete elements such as wall panels, beams, columns, and curbstones. A typical precast concrete factory consists of several main sections: a raw material storage and handling system, a weighing and mixing system, mold and reinforcement assembly areas, casting and forming zones, curing facilities, demolding and quality inspection areas, finished product yards, and transport or auxiliary systems.
Among these, the concrete mixing system is the core component. It ensures that the concrete meets design requirements in terms of strength, workability, and durability through precise proportioning and uniform mixing. This system directly determines the quality stability and production efficiency of precast components.
AGICO designs and builds concrete batching plants tailored to different precast applications. We provide high-quality, efficient concrete mixing solutions with a production capacity of up to 240 m³/h. Whether you require a compact system for a small precast factory or a high-capacity setup for large-scale production, AGICO offers cost-effective and reliable solutions.
Precast Concrete Batching Plants for Sale
- Capacity: 25–240 m³/h
- Types: Stationary Precast Concrete Batching Plant, Mobile Precast Concrete Batching Plant
- Mixer Options: Twin Shaft Concrete Mixer, Planetary Concrete Mixer
- Applications: Production of precast wall panels, floor slabs, beams, columns, and other concrete elements for specialized concrete product factories.
Precast concrete batching plants focus on high-precision proportioning and uniform mixing. The AGICO precast concrete batching plant is specially designed for high-performance concrete production, suitable for long-term, large-scale manufacturing. We provide customized configurations based on specific project needs.
Customized Batching Solutions from AGICO
AGICO offers tailor-made design solutions for different plant layouts, with systems fully configurable according to each customer’s production requirements.
Intelligent Batching and Conveying
The precise weighing system is designed for both accuracy and efficiency, ensuring the correct ratio of all raw materials. The automated control system manages the entire production and conveying process, enabling intelligent coordination and workflow optimization. A variety of customizable conveying solutions can be configured based on the production line layout, significantly reducing manual intervention while improving overall production efficiency and operational stability.
Flexible Storage Capacity
AGICO provides multiple aggregate bin configurations to suit various production scales. Customers can choose between single-compartment or multi-compartment aggregate bins. With a capacity expandable to over 30 tons, the large storage volume ensures continuous material supply to the mixer, maintaining uninterrupted and efficient production.
Modular Design
AGICO batching plants adopt a modular design concept, allowing standardized units to be flexibly combined to meet production needs at different stages. During expansion or system upgrades, there is no need for extensive civil construction, and ongoing production remains unaffected. This reduces investment risks and maintenance costs, ensuring a smooth transition and stable long-term operation.
High-Efficiency Mixing System
AGICO provides a range of high-performance mixers to meet different concrete product and production requirements. The planetary mixer offers highly uniform, dead-zone-free mixing, ideal for high-quality precast elements and high-strength concrete production. The twin-shaft mixer delivers powerful mixing performance and rapid discharge, suitable for large-volume production and high-flow concrete applications.
Installation Steps of a Precast Concrete Batch Plant
AGICO’s precast concrete batch plants can typically be installed within 15 days, while small mobile batching plants can be set up and put into operation in as little as one day. The following outlines the key installation steps:
1. Site Preparation
Site Selection: The site should be close to raw material sources and construction projects to facilitate transportation. Sufficient space should be reserved to allow for future expansion.
Foundation Work: Clear and level the ground, then inspect the foundation’s load-bearing capacity to ensure it meets structural and alignment requirements.
2. Main Structure Installation
Frame Assembly: Install the main structural frame and supporting components of the batching plant.
Equipment Installation: Sequentially install the aggregate bins, cement silos, mixers, conveyors, and other major components.
3. Mechanical Component Setup
Conveying System: Connect the conveyor belts and hoppers to ensure smooth material flow.
Mixing and Batching Units: Install key components such as mixers, batching scales, and weighing devices, ensuring precise dosing and mixing accuracy.
4. Electrical and Pipeline Systems
Electrical Installation: Lay out wiring, install control cabinets, and set up the operating system.
Infrastructure Connections: Connect utilities such as power, water, and environmental systems.
Function Testing: Test the electrical circuits and automation systems to ensure stable performance.
5. System Commissioning
Trial Run: Conduct small-scale production tests to verify the coordination of mechanical, electrical, and logistics systems.
Parameter Optimization: Fine-tune operational parameters based on trial results to achieve optimal production efficiency and concrete quality.
6. Training and Delivery
Personnel Training: AGICO provides comprehensive training on daily operation, maintenance, and troubleshooting for operators.
Project Handover:After a full inspection, the plant is officially handed over, along with safety and quality operation guidelines.
Working Principle of a Precast Concrete Batch Plant
1. Concrete Batching
The production of precast concrete begins with batching. Cement, sand, and aggregates are stored in silos or bins, while admixtures are kept in dedicated containers. During production, the system automatically and accurately measures each material according to the mix design and conveys them to the mixer for thorough blending, forming a uniform concrete mixture.
2. Quality Control
Throughout the batching and mixing process, key parameters such as slump, air content, and temperature are monitored to ensure the concrete’s workability, durability, and strength development meet the design standards. If deviations are detected, the system automatically adjusts the proportions to maintain consistent quality.
3. Casting and Forming
Once mixed, the concrete must be delivered and poured into molds promptly to prevent performance degradation. Different types of precast components require specific casting methods to ensure the concrete evenly fills the molds and forms correctly.
How to Extend the Service Life of a Concrete Batching Plant
1. Maintenance of the Concrete Mixer
- Cleaning:
After operating for a period, clean the remaining mixture promptly, focusing on the mixing shaft, arms, and blades. Do not use a hammer to remove residual concrete, as strong impact may crack the blades.
- Lubrication:
Replace the gearbox oil after approximately 50 hours of continuous operation.
Change the gearbox oil every 1000 hours or at least once every six months.
Check the oil pump daily to ensure lubrication reaches the shaft head and all parts are properly lubricated.
- Clearance Adjustment:
If the clearance between the blades and liner exceeds 8mm, adjust the blades or replace worn parts, keeping the gap around 3mm to ensure uniform mixing and prolong the mixer’s life.
2. Maintenance of the Aggregate Bins
- Cleaning Debris:
Inspect the equipment daily. Remove any debris from the sieves to prevent clogging or affecting material discharge.
- Adjustment of Feed Gate Clearance:
If clearance increases during inspection, adjust it immediately. Fine adjustments can be done through welding if necessary to ensure proper alignment.
3. Maintenance of Cement Silos
- Safety Valve Inspection:
Conduct a thorough inspection every six months. If dust is observed around the top pressure safety valve, clean the valve and surrounding powder. Prevent powder from clumping due to moisture, which could cause the safety valve to fail.
4. Maintenance of Screw Conveyors
- Belt Alignment:
Check the conveyor belt daily. If misaligned, correct it promptly to avoid long-term damage.
- Roller and Drum Cleaning:
Inspect rollers and drums for material adhesion, and clean them as needed.
- Belt Surface Maintenance:
Check the belt for damage. If any is found, repair it promptly to prevent further deterioration.
5. Control Room Maintenance
- Cleanliness:
Clean the control room daily to maintain a dry and dust-free environment, preventing equipment malfunction.
- Equipment Check:
Regularly inspect controllers and related components for looseness or abnormal conditions to ensure the automation system operates normally.
