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Mobile Crushers Capacity From 30 To 500 T/H
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Mobile Crushers Capacity From 30 To 500 T/H

Views: 0     Author: Site Editor     Publish Time: 2025-10-11      Origin: Site

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Mobile Crushers: Breaking Down Site Limitations and Reshaping the New Paradigm of Crushing Operations


In fields such as mining, building demolition, and road construction, crushing operations have always been one of the core links. Traditional fixed crushing production lines require advance site planning and foundation construction, which not only involve high initial investment and long cycles but also fail to flexibly meet the needs of scattered raw materials or temporary operations. The emergence of mobile crushers has completely broken this limitation — integrating functions such as crushing, screening, and conveying into one unit, they can move flexibly according to the location of raw materials, realizing the efficient operation mode of "crushing wherever the raw materials are". This has made them one of the mainstream development directions in the field of crushing equipment in recent years.


I. What is a Mobile Crusher? Core Classifications and Functional Features
A mobile crusher is not a single piece of equipment, but a movable "crushing production line", usually composed of a crushing host, feeding system, screening system, conveying system, power system (diesel engine or electric motor), and a chassis (tire or crawler). Its core advantage lies in "flexibility": it can be quickly transferred according to operation needs, without complex installation and commissioning, and can be put into use immediately after unpacking.
According to its structural form and applicable scenarios, mobile crushers are mainly divided into three categories:
1. Tire-Type Mobile Crushers: Efficient Transfer for Conventional Working Conditions
  • Structural Features: Adopting heavy-duty truck tires as the traveling device, equipped with a hydraulic auxiliary steering system, it can be towed by a tractor or driven independently (some models have independent driving functions). With a traveling speed of 30-50 km/h, it is suitable for road transfer.

  • Core Advantages: High transfer efficiency, strong adaptability to road surfaces, and no need for professional crawler equipment for transportation; compact design enables operation in narrow spaces (such as urban demolition sites and small mines).

  • Applicable Scenarios: Construction waste recycling (crushing of concrete blocks and bricks), small and medium-sized mining operations (primary crushing of limestone and granite), and aggregate processing in road construction (crushing of recycled asphalt pavement materials).

2. Crawler-Type Mobile Crushers: All-Terrain Adaptability for Complex Environments
  • Structural Features: Using a crawler chassis and equipped with a hydraulic drive system, it has a large ground contact area and low pressure, allowing it to travel on complex terrains such as muddy land, mountains, and steep slopes. Some models have a 360° in-situ rotation function.

  • Core Advantages: Excellent terrain adaptability, capable of reaching remote mining areas or field operation sites; high stability, enabling normal operation on sites with a slope of less than 15°, suitable for heavy-duty crushing tasks.

  • Applicable Scenarios: Large open-pit mines (primary crushing of iron ore and copper ore), water conservancy projects (crushing of dredged stones in rivers), and mountain resource development (crushing of quartzite and marble).

3. Mobile Combined Crushing Stations: Modular Design for Customized Needs
  • Structural Features: Composed of multiple independent mobile units (e.g., "primary crushing mobile station + secondary/tertiary crushing mobile station + screening mobile station"), connected by conveyor belts between units. It can be flexibly combined according to the hardness of raw materials and required crushing particle size.

  • Core Advantages: Comprehensive functions, enabling the whole-process operation of "primary crushing - secondary/tertiary crushing - screening - finished product conveying"; modular design facilitates later upgrades (such as adding iron removal devices and dust removal systems) to meet diversified production needs.

  • Applicable Scenarios: Large-scale sand and gravel aggregate production (requiring finished products of multiple particle sizes), deep processing in mines (one-stop processing from raw ore to high-quality aggregates), and large-scale infrastructure projects (e.g., aggregate supply for high-speed railway and airport construction).

II. Core Advantages of Mobile Crushers: Why They Become the "New Favorite" in Crushing Operations
Compared with traditional fixed crushing production lines, the advantages of mobile crushers lie not only in "mobility" but also in the comprehensive optimization of operation efficiency, cost control, and environmental adaptability. Specifically, they can be summarized into four core values:
1. Significantly Reduce Raw Material Transportation Costs and Improve Operation Efficiency
In the traditional crushing mode, raw materials need to be transported from the mining/demolition site to the fixed crushing plant, and transportation costs account for 30%-50% of the total cost (especially for raw materials in remote areas). Mobile crushers, however, can operate directly at the raw material source, transforming "transporting raw materials out" into "transporting finished products out" — the volume of finished aggregates is only 1/3-1/2 of that of raw ore, greatly reducing transportation volume, and the transportation cost per ton can be reduced by more than 40%.
For example, at a building demolition site, a mobile crusher can directly crush concrete blocks into recycled aggregates, eliminating the need for transportation to suburban disposal sites. This not only saves transportation time but also reduces the amount of construction waste stockpiling.
2. Reduce Initial Investment and Shorten Project Cycles
Fixed crushing production lines require land acquisition, site leveling, and concrete foundation construction, with high initial investment (ranging from millions to tens of millions of yuan) and a construction cycle of 3-6 months. In contrast, mobile crushers can be put into production after only 1-2 days of commissioning after unpacking, without investment in fixed sites, and the initial cost is only 1/5-1/3 of that of fixed production lines.
For temporary projects (such as emergency road repairs and aggregate supply for disaster relief) or small mines (with a service life of less than 5 years), mobile crushers can avoid the waste of "equipment idleness after project completion" and have a shorter return on investment cycle.
3. Adapt to Complex Working Conditions and Enhance Operational Flexibility
Whether it is a steep slope in a mountain mine, a narrow street in a building demolition area, or a muddy water conservancy construction site during the rainy season, mobile crushers (especially crawler-type ones) can operate stably:
  • Crawler-type models have a ground contact pressure of only 0.08-0.15 MPa, allowing them to travel on soft ground without getting stuck;

  • Some models are equipped with "foldable conveyors", which can adjust the conveying angle according to site space to avoid material accumulation;

  • For high-dust working conditions, sealed crushing chambers and dust removal systems can be added to meet environmental protection requirements.

4. Intelligent Upgrades to Reduce Labor Dependence
New-generation mobile crushers have generally integrated intelligent technologies, further improving operational convenience and stability:
  • Intelligent Monitoring: Sensors are used to real-time monitor the speed of the crushing host, bearing temperature, and hydraulic system pressure. Automatic alarms are triggered in case of abnormalities to prevent equipment damage due to overload;

  • Remote Control: Some high-end models support remote control via mobile APP or computer, allowing operators to adjust crushing parameters (such as feeding volume and crushing gap) in safe areas;

  • Automatic Screening: The integrated vibrating screening system can automatically classify finished products according to the required particle size, and unqualified materials are returned to the crushing host for secondary crushing to ensure the qualification rate of finished products.

III. Main Application Scenarios: Covering Multi-Field Needs from Mines to Cities
The flexibility of mobile crushers enables them to achieve "scenario adaptation" in multiple fields, becoming a key equipment to solve the pain points of traditional crushing operations:
1. Mining: From "Fixed Plant Construction" to "Mobile with Ore"
In small and medium-sized open-pit mines (such as limestone mines and gold mines), traditional fixed production lines need to be built around ore sites. When the ore site is exhausted, the equipment is difficult to relocate, resulting in resource waste. Mobile crushers, however, can "follow the ore" as the mining face advances, eliminating the need for repeated construction. At the same time, according to the hardness of different ores (e.g., jaw crushing hosts for granite and impact crushing hosts for limestone), crushing modules can be quickly replaced to meet the crushing needs of multiple ore types.
Taking a small cobalt mine in Africa as an example, after adopting a crawler-type mobile crusher, there was no need to build a transportation road from the ore site to the crushing plant. The ore processing cost per ton was reduced by 25%, and the project commissioning time was shortened from 3 months to 1 week.
2. Construction Waste Recycling: Contributing to "Urban Circular Economy"
With the acceleration of urbanization, the amount of construction waste such as concrete blocks, bricks, and steel bars generated from building demolition is increasing year by year. Mobile crushers can directly crush waste into recycled aggregates at the demolition site, which are used to make permeable bricks and roadbed fillers, realizing "on-site recycling and on-site utilization":
  • During the crushing process, the built-in iron removal device can separate steel bars with a recovery rate of over 95%;

  • The particle size of recycled aggregates can be adjusted on demand (e.g., 5-10 mm for plastering mortar and 10-20 mm for concrete bedding) to meet different construction needs.

For example, in a demolition project in a Chinese city, one tire-type mobile crusher can process 800 tons of construction waste per day, producing 600 tons of recycled aggregates and reducing the amount of waste transported out by 80%.
3. Road and Infrastructure Construction: Dual Adaptation for "Emergency and Routine"
In road construction, mobile crushers can be used for:
  • Emergency Repairs: After roads are destroyed by heavy rains, they can quickly crush surrounding stones to make temporary roadbed fillers, shortening the repair time;

  • Local Material Utilization: When building roads in remote areas, they can crush local rocks into aggregates, avoiding transportation from other places and reducing infrastructure costs;

  • Old Road Recycling: Crushed and screened asphalt pavement materials after milling can be reused in asphalt mixture production, realizing "resource recycling".

4. Water Conservancy Projects: Addressing "Field and Flood Season" Challenges
Water conservancy projects (such as reservoir dredging and river dredging) often require operations in the field or during the flood season, with complex environments and tight schedules. Crawler-type mobile crushers can operate on the muddy banks of rivers, crushing sediment and rocks generated from dredging into usable aggregates. This not only reduces sediment stockpiling but also provides raw materials for the project. At the same time, their waterproof design can cope with short-term rainfall, ensuring uninterrupted operations during the flood season.
IV. Selection and Maintenance: How to Ensure "Efficient and Durable" Operation of Mobile Crushers
As high-value equipment (with a single unit price ranging from several hundred thousand to several million yuan), the correct selection and daily maintenance of mobile crushers directly affect their service life and operation efficiency.
1. Core Selection Criteria: Matching "Raw Material Characteristics + Operation Needs"
  • Raw Material Hardness: For hard ores (such as granite and basalt), a combination of jaw crushing host (primary crushing) and cone crushing host (secondary/tertiary crushing) is required; for materials with low hardness (such as limestone and construction waste), impact or impact-type crushing hosts can be selected for higher crushing efficiency.

  • Production Demand: For small-scale operations (e.g., less than 500 tons per day), a single mobile crusher is optional; for large-scale operations (e.g., more than 1,000 tons per day), a combined crushing station is needed to achieve "multi-machine collaboration".

  • Site Conditions: Tire-type models are suitable for operations in cities or near highways (convenient for transfer); crawler-type models are suitable for mountainous or muddy sites (strong terrain adaptability).

2. Daily Maintenance: Focus on the "Three Core Systems"
  • Power System: For diesel-driven models, regularly check the engine oil, coolant, and fuel filter to prevent engine overheating during high-load operations; for electric-driven models, check the insulation of cables to prevent short circuits in rainy weather.

  • Crushing System: Regularly check the wear of crushing tooth plates and liners (e.g., jaw plates of jaw crushers and blow bars of impact crushers). Replace them in time when wear exceeds the limit to avoid substandard crushing particle size; at the same time, keep the crushing chamber clean to prevent material blockage.

  • Travel System: For tire-type models, check tire pressure and wear, and avoid overloaded driving; for crawler-type models, regularly clean sediment and stones in the crawler, and lubricate the crawler chain to prevent rust or jamming.

3. Long-Term Maintenance: The Key to Extending Equipment Service Life
  • Conduct a "comprehensive inspection" once a year, focusing on checking the hydraulic system (sealing of oil cylinders and pipelines), bearing clearance, and electrical control system (sensitivity of sensors and controllers);

  • Choose a dry site for storage. For tire-type models, use brackets to support the tires to avoid deformation due to long-term pressure; for crawler-type models, apply anti-rust oil and cover with dust-proof covers;

  • Operators should receive professional training to avoid equipment damage caused by improper operation (such as excessive feeding volume or shutting down without emptying the crushing chamber).

Conclusion: Mobile Crushers, Ushering in the "Flexible Era" of Crushing Operations
From "ore-following crushing" in mines to "waste recycling" in cities, from "emergency road repairs" to "field operations" in water conservancy projects, mobile crushers are reshaping the traditional mode of crushing operations with their flexibility, efficiency, and economy. With the integration of intelligent technologies (such as 5G remote control and AI predictive maintenance) and green technologies (such as electric drive and low-noise design), mobile crushers will further break through site limitations in the future and become core equipment for "resource recycling" and "efficient engineering construction".
For enterprises, choosing a mobile crusher that suits their own needs is not only a means to improve operation efficiency but also a strategic choice to cope with market changes and reduce cost risks — after all, in an era that requires "rapid response", "movable crushing capacity" is an irreplaceable competitive advantage.


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