






ESSMANN HE-SFK underfloor truck scales – also in WHG or ATEX version
The ESSMANN HE-SFK is a high-precision truck scale that can be installed completely below ground level for legal-for-trade applications in accordance with accuracy class III as per Directive 2014/31/EU (MID) or DIN EN 45501 in industry, logistics, agriculture and municipal and waste disposal companies. Thanks to the integrated base plate, factory pre-assembly and optional WHG or ATEX version, the robust truck scales are ideal for demanding locations – even with transverse loads that can be driven over. Its modular design, durable technology and system compatibility with ESSMANN peripherals (e.g. terminals, license plate recognition, yard management software) make it the ideal solution for modern weighing systems with a high level of automation.
HE-SFK underfloor truck scale design
The ESSMANN HE-SFK truck scales are supplied ready for use with factory-fitted load cells and a fully pre-assembled precast concrete foundation.
Bridge size:
Standard dimensions 18 × 3 m (L × W). Modular design allows lengths of 8 to 30 m and widths of 3 to 4.5 m.
Special versions with upstand or in WHG or ATEX design available.
Installation:
Underfloor installation on a reinforced, integrated base plate – there is no need for on-site strip foundations or clean-out layers. Installation takes place directly on compacted ground.
Load capacity, accuracy and load cells
Maximum load capacity: 60 t
Digit increments: 0.005 to 0.02 t (depending on version)
Overload protection: 200 %
Load cells: pre-assembled at the factory, protection classes up to IP69K possible
The weighbridge can be driven over both lengthwise and crosswise and is resistant to frost and de-icing salt. Galvanized bumper supports and edge protection brackets are integrated as standard.
Maintenance and infrastructure
- Accessible access openings (Ø 60 cm) for maintenance
- Integrated cable ducts and drainage
- Preparation for collision protection (accessory group B) and cleaning access
System integration
The HE-SFK is fully compatible with ESSMANN components and common control and evaluation technology:
Recommended combinations:
- ➚Self-service terminalsMXXL
- ➚License plate recognition
- ➚Gateand traffic light control
- ➚Yard management software with ERP interface
Interfaces:
Analog output (mV/V) or digital via ESSMANN’s own systems (PDS-35, DWT)
Options and special versions
- WHG design in accordance with DAfStb guideline for use with water-polluting substances
- ATEX version for Zone 1/21 and 2/22 – including Ex-certified peripherals
- Regional references: Use at ➚LufthansaTechnik, ➚Hamburg Wasser, ➚Veolia, among others
Notes on planning and installation
- No separate foundation required for version with base plate
- Important note: Crossover requires sufficient open space, drainage connection and, if necessary, soil stabilization
- For locations that are not permanently fixed, we recommend the above-ground steel scales as an alternative ➚HE-TS with minimal foundation requirements or the ➚HE-ÜWS
Are you planning a scale project or do you need support with system integration?
Talk to the ESSMANN sales team or request an individual project consultation:
HE-SFK underfloor truck scales Overview
Bridge sizes
Length from 9.0 to 30 m, width from 3.0 to 4.5 m
Load capacity
60.00 t according to DIN 8119
Maximum load
15 t/ 30 t / 50 t / 60 t
Verifiable weighing range
0.1-15 t / 0.2-30 t / 0.4-50 t / 0.4-60 t
Number step
0.005t / 0.01 t / 0.02 t
Accuracy, calibratable
Class III
≤+/- 0.05 % f.s.
Overload safety
200%
Protection class
IP66/IP68/IP69K

“We bought two truck scales from ESSMANN and are very satisfied with the planning, execution and quality.”
– Benjamin Deckert, authorized signatory at BESTSORT Hamburg GmbH & Co. KG
Assembly & Service
Delivery and installation are turnkey: from the logistics of the precast concrete parts, craning and installation of the weighing technology to initial calibration. Our teams work with our own service personnel throughout Europe.
We are also there for you after commissioning: with training, maintenance, service contracts and digital support.
Interested in the HE-SFK underfloor truck scale?
Whether WHG design, yard management system or ATEX use: together we will find the right solution for your site. Feel free to contact our team of experts directly – we look forward to your project!
References HE-SFK truck scales

Precision on the move: How an underfloor truck scale optimizes the material flow at Lufthansa Technik Hamburg

Use case: Two HE-SFK underground scales with explosion protection for the Stäffelesrain landfill in the Hohenlohe district

Two HE-SFK 30 WHG truck scales for Berliner Wasserbetriebe at the Waßmannsdorf sewage treatment plant

Use case: Digital transformation at Aviretta with Yard Management System
ESSMANN scale accessories
Modules for your truck scales
Control column HE-MXXL
With a height of 2.8m, the control column for our driver self-service terminal offers a large and customizable installation area of 310mm x 2000mm. It is suitable for all types of vehicles, from cars to trucks. Thanks to its large installation depth, the control column provides a universal platform for customer-specific installations such as weighing terminals, terminal PCs, printers, card and/or barcode readers, hands-free telephones, video surveillance and more. The control column consists of an aluminum housing and a stainless steel base designed for durability. The front features a retractable front panel and a plug-in door that is secured by a lock. The control column is available in different colors.


As a DELL partner, we offer you PCs, monitors and printers and install our proven EWP weighing software.

Network cameras for photo documentation during weighing and for license plate recognition.
Thanks to ANPR technology, license plates can be recorded automatically. This allows us to reliably identify vehicles that are already registered or visitor vehicles in the yard. The recorded data is automatically compared with our EWP weighing software and the weighing screen is immediately filled in with the corresponding master data of the license plate.
Vehicle position detection
For monitoring the correct vehicle position on the weighbridge using sensors

Handsfree telephone
The industry standard consists of three modules with up to four call buttons for connection to a telephone system. The call button can be assigned a fixed call number that is dialed when the button is pressed. A door opener connected to a control contact of the hands-free telephone can be confirmed by entering a code number from the inside (on the called party’s telephone). The telephone has two such control contacts and can be used for any purpose. It is installed ready for connection in our self-service terminal or in an optimally available pedestal.
Built-in barcode scanner
HE-GFS
Our barcode reader for installation in our self-service terminals can read common 1D (barcodes) and 2D (QR) codes. The data is converted into an interface format and transmitted to the higher-level input terminal or computer system via the interface. To guarantee reliable scanning performance, the module is housed in a housing sealed with high-grade resin, making it compliant with industrial standards. The reader features patented technology that visually indicates successful code capture to the user, minimizing errors by the driver during self-service.

Frequently asked questions about the ESSMANN HE-SFK underfloor scale
Wie genau ist die Gewichtsmessung der Unterflurwaage HE-SFK?
Die ESSMANN HE-SFK entspricht den strengen Vorschriften der PTB und den OIML-Empfehlungen und bietet eine äußerst präzise Gewichtsmessung mit minimaler Fehlerquote.
Kann die Betonbrücke lange widrigen Witterungsbedingungen standhalten?
Ja, die Betonbrücke ist frost- und tausalzbeständig, was sie für den Einsatz unter verschiedenen Wetterbedingungen geeignet macht.
Gibt es Möglichkeiten zur Erweiterung der Fahrzeugwaage HE-SFK?
Ja, die ESSMANN HE-SFK kann optional mit einer Vielzahl von Peripheriekomponenten erweitert werden, um Ihren individuellen Anforderungen gerecht zu werden.
Wie einfach ist die Wartung der Waage?
Die Waage verfügt über Einstiegsöffnungen für Service- und Reinigungszwecke, was die Wartung und Reinigung einfach und effizient macht.
Ist die Unterflurwaage HE-SFK für LKW und Traktoren geeignet?
Ja, die Waage kann mit jeglichem gummibereiften Gerät wie LKW, Traktoren und anderen Fahrzeugen genutzt werden.
Bietet ESSMANN Waagen Schulungen für die Bedienung und Wartung der Waage an?
Ja, wir bieten Schulungen an, um sicherzustellen, dass die Waage optimal genutzt und gewartet werden kann.
Scale builder tip:
Let’s talk!
The combination and customization options are practically limitless. Let our experienced scale manufacturers advise you and they will be happy to help you make the right decision.

Manufacturer calibration of the HE-SFK underfloor truck scales
After craning in and installing the underfloor truck scale, we adjust it with weights at its place of use and bring it into a legal-for-trade condition. Our team then calibrates it for the first time using calibration weights and it can then be used immediately in legal-for-trade applications. This process is called manufacturer calibration or conformity assessment procedure called.