A fixed concrete plant is a complete set of concrete production equipment that requires foundation construction (such as reinforced concrete foundations) at a fixed site. Once installed, the equipment operates permanently. Fixed concrete batching plant is primarily used for centralized concrete production (ready-mixed concrete or for project use). Through standardized processes, raw materials such as sand, gravel, cement, water, and admixtures are precisely metered and forcefully mixed, ultimately producing concrete that meets project requirements. Unlike mobile concrete batching plants (which can be quickly assembled and disassembled and moved), a stationary concrete batching plant's core characteristic is its "long-term, centralized, stationary operation." It is therefore more suitable for scenarios with high production demands and long operation cycles, such as ready mix concrete plants and large scale infrastructure projects.

Production Capacity of Fixed Concrete Plant:
The output of stationary concrete batching plants is categorized by "theoretical hourly production capacity." The HZS series is the mainstream model, with output ranging from 25m³/h to 300m³/h. Different outputs correspond to different application scenarios:
- 25-50m3/h:
HZS25, HZS35, HZS50 Small rural projects (such as residential housing construction, rural roads), small precast component plants.
- 60-120m3/h:
HZS60, HZS90, HZS120 Small and medium-sized urban construction projects (such as low-rise buildings, municipal roads), regional commercial concrete plants.
- 150-240m3/h:
HZS150, HZS180, HZS240 Large infrastructure projects (high-speed rail, highways, bridges), commercial concrete plants in urban core areas.
- 270-300+m3/h:
HZS270, HZS300 Ultra-large projects (hydropower stations, cross-sea bridges, large industrial parks), and large commercial concrete mixing plants.

The fixed concrete batching plant features a modular, integrated design. Its core consists of six major systems, ensuring a stable structure and clear functions:
- Mixer System:
This core equipment typically utilizes a forced twin-shaft mixer (for high mixing uniformity and high efficiency). Different volumes are matched to the production volume (for example, the HZS180 mixer has a volume of 3m³). Key components (mixer arms and linings) are made of wear-resistant materials to withstand high-intensity operations.
- Batching Metering System:
This includes a sand and gravel batcher (with 1-4 silos, capable of simultaneously metering different aggregates), cement/fly ash metering silos, and water/admixture metering tanks. High-precision sensors and electronic scales ensure a metering error of ≤±1%, ensuring precise concrete mix proportions. Raw material storage systems include sand and gravel silos (mostly open-air or enclosed sheds, designed for 3-7 days' supply), cement/fly ash silos (enclosed steel silos with rooftop dust collectors to prevent dust), and admixture storage tanks (made of corrosion-resistant materials) to ensure a continuous supply of raw materials.
- Conveying System:
Sand and gravel are transported to the main machine via belt conveyors, cement/fly ash via screw conveyors, and water and admixtures via pipeline pumps. The fully enclosed design minimizes waste and pollution.
- Control System:
Utilizing a PLC + touch screen/industrial computer, the system automates the entire batching, mixing, and discharging process. It can store recipes and record production data (such as batch ratios and output).
- Foundation and Steel Structure:
The equipment must be installed on a reinforced concrete foundation to withstand the vibration of the main machine and the weight of the silo. The steel frame supports the metering and conveying systems, ensuring a stable overall structure with minimal vibration and noise.

Core Advantages of Fixed Concrete Plant:
The advantages of fixed concrete batching plants lie in long-term production efficiency, quality stability, operating costs, and environmental compatibility. They are particularly suitable for large-scale, long-term concrete demand scenarios. Specifically, they are as follows:

1. High Production Efficiency, Meeting Large-Scale Demand
- Fixed installations avoid the time lost by frequent disassembly and relocation of mobile concrete batching plant equipment, enabling 24-hour continuous operation (e.g., when meeting deadlines);
- Can be configured with "multiple batching lines + large mainframes" (e.g., a dual-mainframe parallel design), with flexible capacity expansion (e.g., the HZS180 concrete batching plant can be upgraded to 360 m³/h), easily handling mega-projects with single-batch requirements of tens of thousands of cubic meters, such as high-speed rail and hydropower stations;
- Large raw material storage capacity (e.g., cement silos with a single silo capacity of 50-200 tons) reduces downtime due to frequent restocking, resulting in continuous production capabilities far exceeding those of mobile batching plants.

2. Stable concrete quality meets project safety requirements.
- High metering accuracy: High-precision sensors (error ≤ ±1%) combined with automated control eliminate manual batching errors (such as inaccurate sand and gravel dosage and uneven admixture addition), ensuring consistent strength and workability for each batch of concrete.
- High mixing uniformity: The forced twin-shaft concrete mixer's optimized mixing speed and blade angle allow for precise control of mixing time (typically 30-60 seconds), ensuring thorough mixing of cement slurry and aggregate and minimizing segregation.
- Quality traceability: The control system automatically records each batch's production data (raw material quantities, mixing time, and discharge time), facilitating subsequent quality traceability and meeting project acceptance requirements (especially for quality control of key projects).

3. Low long-term operating costs and higher cost-effectiveness
- Although the initial investment (including foundation construction and equipment procurement) is high, the equipment has a long lifespan (10-15 years with normal maintenance, and up to 20 years with key component replacement), far exceeding the 5-8 years of mobile equipment.
- Low maintenance costs: The fixed location facilitates daily inspection and maintenance (such as unit lubrication and sensor calibration). Component replacement does not require disassembly of the entire unit. Large components are highly versatile, resulting in low procurement costs.
- High energy efficiency: Large concrete mixer have lower energy consumption per cubic meter (for example, the HZS180 consumes 15%-20% less energy per cubic meter of concrete than the HZS50 concrete batching plant), resulting in significant long-term electricity cost savings.
- Low raw material loss: The closed conveying system (belt and screw conveyors) reduces dust loss of sand, gravel, and cement (loss rate ≤1%), far lower than the open-air operation of mobile equipment (loss rate of 3%-5%).

4. Convenient Operation and Low Labor Costs
- Fully Automated Control: The entire batching, mixing, and discharging process requires no human intervention. One to two operators can operate the entire system (requiring only monitoring the system and providing refill reminders), saving 5 to 8 people compared to traditional manual batching.
- Digital Management: High-end models can be integrated with ERP systems, integrating "order management - raw material consumption - production planning - financial statistics," reducing manual statistical errors and facilitating refined management.
- Low Entry Requirements: The touchscreen interface is intuitive, and recipes can be stored in advance (e.g., C30 and C40 concrete recipes). New operators can be on the job after just one to two weeks of training.

5. Environmental performance is easily compliant with standards and policy requirements.
- A fixed site facilitates centralized installation of environmental protection equipment: cement silos equipped with roof dust collectors (to reduce cement dust), concrete mixers equipped with pulse dust collectors (to collect mixing dust), wastewater recycling in sedimentation tanks (saving 80% of water), and waste residues that can be recycled into recycled aggregate.
- Noise control: The equipment is installed on a concrete foundation, resulting in low vibration. Noise can be reduced by installing sound insulation panels and vibration damping pads (noise at the plant boundary is ≤ 60dB), thus avoiding shutdowns due to environmental issues.

6. Stable, durable structure with strong risk resistance
- The equipment is fixed to a reinforced concrete foundation, resulting in low vibration during operation, uniform force distribution on components (e.g., reduced wear on the mixer and conveyor belts), and a low downtime rate (monthly failure rate ≤ 2%).
- Key components (mixer arms, liners, and screw conveyor blades) are made of high-strength, wear-resistant materials (e.g., NM450 wear-resistant steel), offering a long service life (mixer arms last 1-2 years, liners 6-12 months), making them suitable for high-intensity operations (e.g., daily output exceeding 1,000 cubic meters).

In large-scale, long-term concrete production scenarios, fixed concrete batching plants are the absolute mainstream and enjoy high market acceptance. Specifically, they are:
- The preferred choice for commercial concrete batching plants:
Commercial concrete companies (ready-mix concrete plants) in cities require long-term, stable supply to multiple construction sites (with daily outputs of thousands of cubic meters). The high output, low cost, and stable quality of fixed concrete batching plants perfectly meet these needs.
- Essential equipment for large-scale infrastructure projects:
National key projects such as high-speed railways, highways, large bridges, hydropower stations, and airports, with long construction periods (1-5 years) and large concrete production volumes (hundreds of thousands to millions of cubic meters), rely heavily on the continuous production capabilities of stationary concrete batching plants..
- Policies and environmental protection drive demand:
Environmental requirements for commercial concrete plants (such as dust, noise, and wastewater emissions) are becoming increasingly stringent. Stationary concrete batching plants, due to their ease of retrofitting environmental protection equipment and their greater ease of passing environmental impact assessments, have become the preferred choice for companies seeking to mitigate environmental risks. Furthermore, the demand for digital management (such as production data traceability and energy consumption monitoring) is driving the upgrade of older stationary concrete batching plants, resulting in sustained and stable market demand.

Mobile concrete batching plants are advantageous only for temporary projects (such as emergency rural road repairs and small construction sites in remote areas) or short-term projects (with durations under three months). However, in mainstream large-scale, long-term production scenarios, fixed concrete batching plants hold an irreplaceable market position, and their demand continues to grow steadily with infrastructure investment and urbanization.

In summary, fixed concrete plants, with their core advantages of high output, high quality, low cost, and environmental friendliness, dominate the ready-mixed concrete and large-scale infrastructure sectors and are the mainstream choice in the current concrete production equipment market.