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GRAU MOBILE CONCRETE PLANTS

Setting up concrete production has never been so easy. Meet our line of reliable quick-erect Mobile Concrete Plants specifically designed for fast deployment and relocation between temporary construction sites.

GRAU MOBILE CONCRETE PLANTS

RELIABLE, HIGH-PERFORMANCE CONCRETE PRODUCTION ON THE MOVE


GRAU Mobile Concrete Batching Plants are engineered for fast, flexible, and efficient concrete production wherever it’s needed. Designed for rapid setup and relocation, our mobile concrete batch plants combine robust mobile steel frame on wheelbase with high-capacity production performance, making them ideal for temporary sites, remote locations, and projects with changing job sites.


Each model integrates all the essential components – aggregate storage, weighing systems, concrete mixer, cement silos, and control system – into a compact, transportable structure. This reduces installation time, minimises civil works, and allows companies to start production quickly. With precise batching accuracy, low maintenance requirements, and strong mobility features, GRAU Mobile Concrete Plants offer the same reliability and output as fixed plants, but with the added benefit of mobility..

 

EASY TRANSPORT AND RELOCATION

Many companies prefer mobile concrete plant solutions for temporary construction sites as installing and relocating a concrete production facility after a project has been completed is not an easy job. Keeping that in mind, we have developed our quick-erect mobile concrete plant product line to make sure our customers get the necessary flexibility while saving a lot of time.


WHAT IS A MOBILE CONCRETE BATCHING PLANT?

A mobile concrete plant is a fully transportable concrete batching facility that combines aggregate storage, cement silos, conveyors, weighing systems, and a high-performance mixer into a compact, movable structure designed for fast setup and relocation. Unlike stationary concrete plants, a mobile concrete batch plant requires minimal foundations and civil works, allowing it to be installed directly on-site to produce fresh, high-quality concrete exactly where it is needed. This reduces transport costs, eliminates delivery delays, and ensures consistent concrete performance for projects such as roads, bridges, infrastructure works, and temporary construction sites. By offering the same accuracy, productivity, and automation as a fixed plant with the added benefit of mobility, a mobile concrete plant provides the most efficient and flexible solution for modern construction demands.


WHAT DOES A MOBILE CONCRETE PLANT CONSIST OF?

A typical mobile concrete batch plant includes:

  • Main Chassis on Wheelbase
  • Aggregate Bins for storing and feeding the aggregates.
  • Aggregate Weigh Hopper to precisely batch aggregates according to the recipe.
  • Aggregate Transfer Conveyor for material transfer from the aggregate weigh bin into the concrete mixer.
  • Integrated Cement/Binder Silos for storing cement and other powders, complete with all silo equipment, safety systems and filters.
  • Weighing Systems for cement, water, additives and other mix components to ensure precise batching.
  • Concrete Mixer (twin-shaft, single-shaft or planetary) for homogenous high-quality mixing.
  • Control System for automated or manual operation of the plant.
  • Service Platforms and Handrails for maintenance and servicing.
Why GRAU GRAU MOBILE CONCRETE PLANTS?
  • 01
    UP TO 120 m³/h
  • 02
    EASY TRANSPORT
  • 03
    FAST INSTALLATION
  • GRAU G100M mobile concrete plant in transport position in grey colour near the factory
    Move Your Plant in Days
    GRAU Mobile Concrete Plants will give you the flexibility you need. Our range allows you to disassemble, move the plant to a new site and set up concrete production in a matter of just a few days! We offer a unique design with folding aggregate bin walls and service platforms, which speed up the installation. All other components can be transported on the main chassis without the need for additional trucks.
  • Service Friendly Main Frame
    We collaborate closely with operators and fitters to enhance our products, ensuring that servicing is safe and hassle-free. The main frames on our mobile concrete plants are specifically designed for ease of maintenance. Wide service platforms and straightforward access to mixer components, greasing points, and drip trays is essential and well-designed.
    Service Friendly Main Frame
  • Robust Wheelbase
    Robust Wheelbase
    GRAU Mobile Concrete Plants can be transported many times during their lifetime. Our robust wheelbase can sustain multiple relocations on rough site terrain for many years ahead. The wheelbase is equipped with air brakes, that can be easily connected to the truck’s braking system, and ABS (Antilock Brake System) that prevents the wheels from locking during braking and skidding.
  • Unique Independent Weighing Hopper
    The aggregate bins on GRAU Mobile Concrete Plants are equipped with an independent aggregate weigh hopper, while other manufacturers weigh on the transfer belt itself. This setup allows for the next batch to start while the material is still moving on the transfer belt conveyor into the mixer. It results in higher production capacity and lower power consumption because transfer belt doesn’t start up with material on it. It is especially important when the plant is running on generator.
    Unique Independent Weighing Hopper
  • Mini Mobile Solutions
    Mini Mobile Solutions
    Some projects require very low amounts of concrete and yet it is not easy to deliver concrete from other suppliers. We offer a cost-effective solution for such requirements. Discover our mini mobile solutions for on-site concrete production. Mini does not mean small and with up to 1 m³ capacity concrete mixers, these little machines can reach significant practical capacity of up to 45 m³/h.
PRODUCT HIGHLIGHTS AND TIPS
1. Define Your Required Capacity
Start by determining how much concrete you need to produce per hour. As a rule of thumb, the plant capacity needs to be higher than your average calculated required capacity. This is due to occasional spikes where you would need to deliver large amounts of concrete quickly, like loading all the mixers before traffic hits or when you pour foundations. There can always be delays caused by traffic, on-site truck mixer movement or weather.
2. Consider Mobility and Setup Time
If your projects require frequent relocation, prioritise a model with a compact design, folding components, and quick setup features. Not all mobile concrete plants are built the same and some might require a lot of work with running the cables or installing the weight hoppers. A plant that can be installed and started within days saves valuable time between jobs.
3. Evaluate Mixer Type and Performance
Select the right mixer based on your concrete requirements. Twin-shaft mixers are the best choice for high-output and consistent mixes, while planetary mixers suit smaller batches or specialised concretes where uniformity is key. Single shaft mixers, on the other hand, provide very high plasticity in certain mixes and are generally preferred in lower capacity setups.
4. Check Transport and Logistics Requirements
Ensure the entire plant – including bins, silos, weigh hoppers and conveyors – can be moved efficiently with standard trailers or trucks. A design that allows to transport all the main components and screw conveyors of the plant’s chassis reduces transport costs and simplifies site transfers as sometimes silos don’t need to be moved. Many mobile concrete plants require additional transport as their steel frames are not heavy enough to carry everything on them during transport.
5. Assess Build Quality and After-Sales Support
Inspect the plant’s structural strength, galvanised components, and protective coatings for durability. Equally important is the availability of spare parts, technical support, and service assistance to keep production running smoothly. Question the technical documentation and the ability to identify the necessary parts easily.
Features, Options & Operation Tips
Maintenance Tips: Perform Daily Inspections
  • Maintenance Tips: Perform Daily Inspections
    Maintenance Tips: Perform Daily Inspections
    Before each production shift, check all key components – mixer, conveyors, belts, aggregate bins, and cement silos – for wear, leaks, or blockages. Identifying small issues early helps prevent costly downtime later.
Maintenance Tips: Keep the Mixer Clean
  • Maintenance Tips: Keep the Mixer Clean
    Maintenance Tips: Keep the Mixer Clean
    Thoroughly clean the mixer drum and shafts at the end of each workday or if the plant stops briefly and will not be producing concrete for over 30 minutes. Simply add some coarse aggregates and water and mix it for a few minutes to clean the shafts and the body and use a manual jet wash to clean the rest. Consider installing an automatic mixer washout system. Hardened concrete buildup can affect mixing quality, reduce capacity, and increase load on the components.
Maintenance Tips: Check Calibrations Regularly
  • Maintenance Tips: Check Calibrations Regularly
    Maintenance Tips: Check Calibrations Regularly
    Regularly verify the accuracy of all weighing systems for aggregates, cement, water, and additives. Correct calibration ensures consistent concrete quality and prevents mix design deviations. Remember that readings can drift slightly with significant temperature changes – for example, when conditions shift from very hot to near freezing – so recalibration may be necessary after major weather fluctuations.
Maintenance Tip: Lubricate Moving Parts as Recommended
  • Maintenance Tip: Lubricate Moving Parts as Recommended
    Maintenance Tip: Lubricate Moving Parts as Recommended
    Follow the manufacturer’s lubrication schedule for bearings, shafts, and other moving parts. Proper lubrication reduces friction, prevents premature wear, and ensures smooth operation. Twinshaft concrete mixers have additional manual greasing points as automatic lubrication system are generally used to create pressure inside the labyrinth seals to keep concrete away.
Easy to Service and Maintain
  • Easy to Service and Maintain
    Easy to Service and Maintain
    All GRAU mobile concrete plants come with wide service platforms and safe walkways fitted with handrails along the aggregate transfer belts. Conveyor belts are enclosed with cladding to help contain dust and reduce environmental impact, ensuring cleaner and safer operation on every site.
Improved Safety
  • STI Safety Locks on Maintenance Doors are Standard
    STI Safety Locks on Maintenance Doors are Standard
    All GRAU Concrete Mixers are equipped with STI Safety Locks. The operator can not open the mixer maintenance door without cutting off the main power and removing the key from the control cabinet. It provides a much better safety control for your personnel.
MODELS & SPECS
  • Mini Mobile - G30M

    Mini Mobile - G30M

    Small Footprint 30-45 m3/h On-Site Optional Concrete Belt Economical Towable Trailer
  • G60M/G100M

    G60M/G100M

    Small Footprint 60-100 m³/h Optional Feeding System On-Site High Capacity High Performance
  • Pro Mobile - G120M

    Pro Mobile - G120M

    Larger Footprint 100-120 m³/h Separate Aggregate Bins High Capacity High Performance Mass Production
SPECIFICATION
TECHNICAL SPECIFICATION G30M G60M G100M G120M

Theoretical Output

Compacted Mixed Concrete

30 m³/h 60 m³/h 100 m³/h 120 m³/h
Mixer Type Planetary, Singleshaft Single/Twin Shaft, Planetary Twinshaft Twinshaft
Mixer Capacity 0.5 m³ 1.0 m³ 2.0 m³ 3.0 m³
Cement Weighing Bin 300 kg 600 kg 1000 kg 1500 kg
Water Weighing Bin 300 kg 300 kg 750 kg 750 kg
Additive Weighing Win 20 kg 20 kg 20-50 kg 20-50 kg
Maximum number of aggregate bins 4 4 4-6 4-6
Maximum capacity of each aggregate bin 6 m³ 10 m³ 15 m³ 30 m³
Total capacity of the aggregate bins 16 m³ 40 m³ 60 m³ 120 m³
Total Power 47 kW 65 kW 105-110 kW 195-200 kW

 

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Date Title
29-10-2024 GRAU Mobile Concrete Plants
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