OAS AG

Special vehicle scales 

Flexible solutions to your individual requirements

Truck scales are indispensable in many industries when it is about the detection of the flow of goods. The many different potential use cases for a set of truck scales lead to different scales constructions. Beside our standardised truck scales solutions, custom-built scales for special needs are no problem at all. 

Truck scales for asphalt mixing plants

We have also implemented successfully many scales solutions into existing loading environments, e.g. in an asphalt mixing plant, or in already covered buildings. As an option, it is possible to meet special requirements, such as designing precast concrete units in accordance with the WHG (the German Federal Water Act). 

Truck scales for already covered areas or ports

Thanks to a construction height of only 30 cm, our extremely flat truck scales are suitable especially for use cases where the installation of foundation pits or high above-ground structures are impossible. Thus, they are perfect for an installation into already covered areas or loading lines. Furthermore, we also offer scales solutions for the SOLAS compliant weighing of sea containers, calibratable scales for small quantities, such as scales for passenger cars, or upon request even calibratable truck scales for an export to Austria and Switzerland.

Special scales & special designs

Depending on the use case, it is of course possible to realise special scales and special designs beyond our standard portfolio of truck scales. This covers not only special lengths of up to 40 m, but also special widths of between 3.5 m and 5 m or wider. Please do not hesitate to contact our expert for truck scales.

Flush-mounted and above-ground truck scales

Suitable for industrial or harsh environments

Our classical flush-mounted scales ESB made of wear-resistant concrete are suitable for an industrial use. We manufacture the individual scales components of the calibratable weighbridge for you, even in special lengths. Our calibratable above-ground truck scales EFS-N are perfect for weighing in harsh environments. This type of OAS scales excels in its many possible uses and is suitable for construction sites, gravel quarries or bulk material plants, as well as agricultural establishments.

High-quality concrete featuring high resistance

All OAS truck scales are manufactured in plants for precast concrete units in Germany and meet strict requirements. They comply with the rules and regulations issued by the PTB (the German national metrology institute providing scientific and technical services) as well as the recommendations by the International Organization of Legal Metrology OIML. The admissible load complies with DIN 8119. The high-quality concrete used provides for high resistance to mechanical abrasion and to freeze-thaw-cycles. The installation of the concrete units takes only a few hours. Together with the maintenance-free, electromechanical substructure, the complete solution is a cost-effective concept featuring low construction costs, short construction time, and minimised maintenance costs.

Plant engineering for bulk materials and liquid media

Trust in our long-term experience in the field

We couple the know-how required for the handling of bulk materials, such as sand, binders, filling materials, and chemical raw materials with our expert knowledge on how to handle the most different kinds of liquid media in the chemical industry and the paints, lacquers, and varnish industry. Whether it is about, e.g.:

• modular silo plants,
• mixing installations / mixers,
• manual additions,
• small and medium component stations (SMC),
• dosing systems,
• big bag systems,
• bulk loading lines,
• the automation of lines,
• recipe management,
• reverse batch tracing,

we develop your bulk material equipment with a team of experienced graduate engineers, draughtspersons, and design engineers and adjust each project individually to your requirements.

wcon terminals for your truck scales

For an intuitive self-service by the driver

When using the wcon terminals, the driver is able to weigh the vehicle independently and quickly without requiring help by your personnel. The terminal can be operated from the vehicle or indoor spaces. The continuous availability of the scales terminals allows for 24/7 weighing of own or external vehicles in your company.

Whether in agriculture, in the disposal and recycling industry, or for industrial applications, the scales terminals allow for permanent availability of the truck scales without additional workforce.

Simple touch screen operation

The self-explanatory structure provides for easy operation on a special and robust touch screen. The user interfaces feature different languages and right at the beginning of operation the user is asked to select the desired language by touching a flag icon. It is also possible to implement graphics into the self-service user interface (e.g. icons, in-house instructions to meet the safety requirements, or order-related instructions referring to the loading and unloading points).

As the operating party, you may design the self-service process on your own in only a few clicks to adjust it perfectly to your business.

Reduced door-to-door time

The driver is guided safely through the process by single-step operation. This allows the driver to focus on the essential information in each input menu. Thanks to the custom-fit adjustment of the self-service process, only the data important to your process are recorded. Our experience gained in many years has shown that operating sequences at the scales in your company can be considerably accelerated and, consequently, the door-to-door times become reduced. Even an automation of only a part of the weighing procedures (e.g. only the execution of first weighing) can be realised easily.

Durability and suitability for use in daylight

The powder-coated operating terminals are made of stainless steel and extremely weather-proof and resistant. The touch screens feature brightness control and can also be read in direct sunlight. In advance, we will define in cooperation with you all components based on the process in your plant. Should your process be modified at a later time, the modular structure of the scales terminals makes amendments and the integration of further components possible at any time.

Loading control

With our smart loading control system, we can automate loading and unloading irrespective of the scales system. Here, we also use our self-service solution featuring a multilingual order menu to enter complementary data (selection of the silo, material, nominal quantities, or car registration number). Loading and unloading here again can be carried out by the driver without additional workforce. Signal communication with higher-level loading control systems via established bus systems is possible. The use of wcon terminals has become established in harsh industrial environments.


Let us also inform you about our self-service terminals for logistic applications in yard management – as an option also featuring control of incoming lorries – for an efficient control of the lorry traffic on your premises.