Mobile asphalt mixing plant is a set of asphalt batching, mixing, production in one of the mobile complete sets of equipment, different from the traditional fixed mixing plant, all of its core components are integrated in the module can be towed or lifting, can be realized between the site of the rapid transit and on-site installation, from the fundamental solution to the site of the fixed equipment site constraints, the transfer of the problem of difficult.

In modern road construction, the importance of mobility becomes more and more prominent. On the one hand, infrastructure projects present cross-regional and multi-point characteristics, such as highway construction in sections and rural road reconstruction, which require equipment to follow the site to move quickly; on the other hand, remote mountainous areas, suburban construction sites and other scenarios without fixed construction sites can not meet the infrastructure of fixed mixing plant, water and electricity supporting requirements, the flexibility of the mobile equipment has become a core advantage.

The core function of a mobile asphalt mixing plant is to blend aggregates, asphalt, fillers, and other raw materials in precise proportions to produce asphalt mix meeting engineering standards. This process relies on standardized core components and an orderly production flow, achieving integrated conversion from raw materials to finished products. The entire operation can be intelligently controlled via a PLC system.

Core Component System

The components of a mobile asphalt mixing plant are highly integrated and modularized. Each part works in concert to ensure production efficiency and mix quality. The core components and their functions are as follows:

Cold Aggregate Feeding System: Responsible for proportionally conveying cold aggregates of different specifications. This serves as the starting point for raw materials, ensuring continuous aggregate supply.

Drying Drum: Dries and heats cold aggregate, removing moisture and achieving the required temperature for asphalt mixing. This is the core component for aggregate pre-treatment.

Burner System: Provides a stable heat source for the drying drum, directly determining aggregate drying efficiency and heating uniformity.

Vibrating Screen: Grades and screens heated aggregate, removing non-compliant sizes to ensure compliance with mixing requirements;

Weighing and Batching System: Precisely measures aggregate, asphalt, and filler quantities, critical for maintaining mix ratio accuracy and directly impacting asphalt pavement quality;

Mixing Tower: Thoroughly blends raw materials in precise proportions to produce uniform asphalt mix. Mixing efficiency and homogeneity determine final product quality;

Asphalt Supply System: Stores, heats, and conveys liquid asphalt, ensuring stable supply and optimal temperature;

Dust Collection System: Captures dust generated during production to meet environmental construction requirements and prevent pollution;

PLC Control System: Automates the entire production process, precisely regulating parameters at each stage to reduce manual intervention and enhance efficiency.

Step-by-Step Workflow

The production process of mobile asphalt mixing plants is standardized and intelligent, requiring minimal manual operation. Specific steps include:

Aggregate Feeding: Cold aggregates are conveyed via the feeding system to the drying drum at preset ratios, completing initial material transport. Aggregate proportions can be flexibly adjusted based on production requirements;

Drying and Heating: Burners supply heat to the drying drum, where aggregates tumble to remove moisture and reach the specified temperature of 140-160°C;

Screening and Weighing: Heated aggregates undergo vibratory screening for grading. Qualified aggregates enter the weighing system, where they are precisely measured alongside fillers, with tolerances maintained within acceptable limits;

Asphalt Dosing: The asphalt supply system accurately meters heated liquid asphalt according to the mix ratio and rapidly conveys it to the mixing tower, preventing temperature loss that could compromise mixing quality;

Mixing: Aggregates, filler, and asphalt undergo thorough mixing within the mixing tower. Mixing duration is adjustable based on mixture type to ensure uniformity and eliminate lumps in the final product;

Product Discharge: The finished asphalt mixture is discharged from the mixing tower and can be directly conveyed to paving equipment, enabling seamless integration between production and construction while minimizing material loss during transportation.

As the mainstream type of mobile asphalt mixing plants, batch-type equipment has become the core choice for various projects due to its technological advantages and adaptability. Its strengths stem from modular design and advanced production processes, specifically manifested in the following aspects:

Exceptional Mobility with Zero Relocation Barriers

The fully modular design enables rapid site-to-site transfers via trailer towing or truck transport without disassembly. Relocating operations requires only brief commissioning before resuming production, making it ideal for multi-site construction across regions.

Foundation-free installation for complex terrains

Requires no poured concrete foundations, enabling rapid setup even on uneven remote sites or mountainous terrain. Operates normally in areas without external water or power connections, overcoming challenges in complex construction environments;

Precise Mixing Ratios, Controllable Quality

The batch mixing process enables individual weighing and mixing of each raw material batch, allowing flexible adjustment of mix grades. It produces asphalt mixtures of varying viscosities and specifications without equipment changes, ensuring full control over product quality throughout the process.

Economical and energy-efficient with low operating costs

Compared to stationary plants, it eliminates the need for complex heat exchange systems and large water pumps, reducing equipment investment and maintenance expenses. It also requires fewer safety precautions for raw materials, further lowering construction and operational costs;

Intelligent Operation, Easy to Master

Equipped with a user-friendly interface and advanced PLC control system, it offers high automation for quick operator proficiency. Its robust construction ensures stable long-term operation in harsh outdoor environments with extended service life.

Customized Adaptation for Tailored Solutions

Designed to meet specific project capacity requirements and construction environments, it delivers bespoke asphalt production solutions that precisely align with project needs.

When selecting asphalt mixing plants, mobile and fixed configurations represent two primary options. These differ significantly in design characteristics, production capacity, and suitable applications. Engineering firms must choose based on project specifics to avoid wasteful expenditures from uninformed procurement.

Core Characteristics of Mobile Asphalt Mixing Plants

Key Advantages: High mobility, rapid deployment, no foundation requirements. Suitable for cross-regional operations, remote sites, and multi-location construction. Modular design enables low relocation costs and excellent environmental compliance, meeting on-site construction regulations.

Production Capacity: Covers 40TPH–120TPH, accommodating small-to-medium to medium-to-large scale demands. Flexible selection based on project size.

Application Scenarios: Segmented highway construction, municipal road maintenance, rural road development, remote mountainous projects, localized airport runway construction, etc.

Core Features of Stationary Asphalt Mixing Plants

Core Advantages: Higher continuous production capacity to meet large-scale asphalt demands; capable of integrating advanced control systems and raw material storage equipment for more stable asphalt mix quality and lower long-term operational costs;

Production Capacity: Significantly higher than mobile plants, typically exceeding 150TPH, suitable for continuous production in super-large-scale projects;

Applicable Scenarios: Fixed-site projects requiring large capacity, such as roads in large industrial parks, concentrated construction on urban main roads, and centralized production/supply of asphalt mix.

Core Selection Recommendations

For projects involving multiple sites, cross-regional operations, or short construction cycles, prioritize mobile plants to effectively reduce relocation costs and site investment. For fixed-site projects requiring high capacity and long construction cycles, stationary plants offer a superior solution, ensuring production efficiency and product consistency.

Mobile asphalt mixing plants offer exceptional adaptability. With their flexibility, efficiency, and ease of installation, they are widely used in various road construction and maintenance projects, covering all scenarios from high-grade infrastructure to small-scale rural projects. Core applications include:

Highway Construction

Highway projects often involve cross-regional segmented construction with dispersed contract sections and tight schedules. Mobile equipment can swiftly relocate to follow construction segments, eliminating the need for repeated setup. Its precise mixing quality meets the high standards required for highway pavements, ensuring surface smoothness and durability.

Municipal Road Maintenance

Localized repairs and renovations on urban roads involve confined and dispersed work zones with strict traffic controls, making fixed equipment inaccessible. Mobile plants can rapidly commence operations on-site, reducing aggregate transportation costs and temperature loss while shortening construction schedules and minimizing disruption to urban traffic.

Airport Runway Construction

Airport runways demand exceptionally high-quality asphalt mix, with strict standards for smoothness and density. The precise batching capability of intermittent mobile plants perfectly meets these requirements. Additionally, the equipment can flexibly adjust its operating position according to the construction area, adapting to the segmented construction characteristics of airport runways.

Bridge Deck Paving

Bridge paving imposes strict constraints on equipment size and mobility, as large stationary plants cannot be erected near bridges. The modular design of mobile plants offers compact dimensions, enabling rapid setup around bridges. This avoids site limitations of large equipment while ensuring paving quality.

Rural Road Projects

Rural roads are often located in remote areas lacking fixed construction sites and adequate water/power infrastructure, with limited construction budgets. Mobile equipment’s foundation-free installation and independent operation capabilities perfectly suit rural road construction needs. The low investment cost of compact units makes them ideal for procurement by township construction teams.

The technical parameters of mobile asphalt mixing plants directly determine their production capacity and adaptability. The parameter designs of mainstream equipment align with actual engineering requirements. When procuring, engineering enterprises should focus on matching technical parameters with project needs to avoid overcapacity or undercapacity.

Mainstream Production Capacities

Mobile asphalt mixing plants on the market cover various project demands, with common specifications including 40TPH, 60TPH, 80TPH, and 120TPH. Each capacity level serves distinct scenarios:

40TPH–60TPH: Suitable for small-scale projects like rural roads, municipal maintenance, and minor pavement repairs. Low investment cost makes it ideal for small construction firms.

80TPH–120TPH: Suitable for medium-to-large projects like highways, airport runways, and urban expressways. Offers sufficient capacity to meet large-scale construction demands.

Core Technical Parameters

Fuel Type: Supports multiple fuels including diesel, heavy oil, and natural gas, allowing selection based on site availability. Natural gas is more environmentally friendly and energy-efficient, ideal for urban sites or those with gas infrastructure; Diesel fuel suits remote sites without gas infrastructure, offering convenient supply;

Power Consumption: Varies by capacity. Small 40TPH units consume approx. 30-50kW, while large 120TPH units consume approx. 100-150kW. Mainstream equipment features energy-saving systems to effectively control electricity usage during production;

Aggregate Bin Configuration: Aggregate bins typically feature modular designs with customizable capacity and quantity. Standard configurations include 3-4 bins to accommodate storage and conveyance of various aggregate specifications;

Powder Bin Capacity: Powder bin capacity scales with production output, commonly ranging from 10-30m³. This ensures stable storage and precise feeding of fillers, maintaining continuous mixing operations.

Selecting a mobile asphalt mixing plant should not solely focus on low price. Instead, maximize cost-effectiveness by aligning with project requirements while ensuring equipment quality and after-sales service. This prevents construction delays caused by equipment issues. Key selection strategies include:

Accurately Assess Project Scale

Determine equipment capacity based on construction area, asphalt demand, and project timeline. Avoid underutilization of oversized equipment or capacity shortages with undersized units to minimize investment waste.

Match Production Capacity

Opt for 40TPH-60TPH for small projects and 80TPH-120TPH for medium-to-large projects. Selecting capacity based on actual needs effectively controls equipment investment and operational costs.

 Verify Fuel Compatibility

Choose fuel type based on site availability. Remote sites prioritize diesel models, while urban projects may select more environmentally friendly natural gas models to reduce fuel procurement and usage costs.

Verify Environmental Compliance

Given stringent current environmental regulations, ensure dust collection systems and exhaust treatment systems meet national standards to prevent project shutdowns and economic losses due to non-compliance;

Evaluate Automation Levels

Select automation tiers based on operator expertise. Highly automated equipment reduces labor costs and enhances precision, suitable for large contractors. Small teams may opt for basic models with simplified operation to minimize manpower requirements;

Compare Manufacturer Reputation And Capabilities

Prioritize suppliers with formal production certifications and strong industry reputations. Their equipment offers greater quality assurance and technical designs better suited to practical engineering needs, preventing substandard equipment from disrupting construction.

Prioritize After-Sales Support And Spare Parts Supply

Post-purchase maintenance is critical. Confirm whether the manufacturer provides on-site installation, commissioning, and repair services. Simultaneously verify their capacity to supply wear-and-tear parts to avoid construction delays caused by component shortages during equipment failures.

The core differences lie in mobility and production capacity: Mobile plants are large-scale modular equipment transported via trailers/trucks, featuring high output (40TPH+), suitable for medium-to-large projects. Portable plants are lightweight compact units movable by manual labor or small machinery, with extremely low output (below 10TPH), only suitable for small-area pavement repairs.

Its modular design enables extremely efficient installation. After site leveling, standard equipment can be assembled and commissioned within hours, with production starting as early as the same day—significantly faster than stationary asphalt plants (typically requiring days or even weeks for installation).

With proper daily maintenance, the robust main structure ensures a normal service life exceeding 10 years. Wear parts (e.g., mixing blades, conveyor belts) can be replaced to sustain continuous operation, resulting in low long-term maintenance costs.

Yes. Mainstream mobile plants can produce modified asphalt, colored asphalt, and other specialty mixes by upgrading the batching system and mixing process. Simple adjustments based on production requirements suffice, eliminating the need for additional specialized equipment.

Power consumption correlates directly with production capacity. A 40TPH small-scale unit consumes approximately 30-50kW, while a 120TPH large-scale unit consumes about 100-150kW. Mainstream equipment incorporates energy-saving technologies that effectively reduce actual power consumption during production, thereby lowering operational costs.