Crane Weighing Solutions: Precise Load Measurement and Certified Overload Protection for Every Lift
Every load a crane moves carries weight in more ways than one. In steel mills, ports, offshore rigs, construction sites and paper plants, a small error in load measurement can mean material waste, unplanned downtime, accelerated equipment wear — or a serious safety incident. Tightening regulations have raised the bar further, and many cranes in service today were never built to meet today’s standards.
BLH Nobel delivers complete, highly accurate crane weighing solutions that turn every lift into reliable data. We develop and manufacture every part of the system in-house — the load cells, the instrumentation, the software and the support — so your crane load measurement is precise, your crane overload protection is certified, and your cranes keep performing consistently, year after year. Whether you are commissioning new equipment or upgrading an ageing fleet, we engineer the system around your crane, not the other way around.
One Partner, One Complete Crane Weighing System
Most weighing problems on cranes come from components that were never designed to work together. BLH Nobel removes that risk with end-to-end crane weighing systems built from a single source:
- Custom load cells engineered for your crane. Our KOSD, KIMD and KISD designs are tailored to each application - dimensions, capacity, mounting and environment - for a precise fit with no compromise on accuracy. Capacities reach into the thousands of tons.
- The G6 instrument with dedicated crane weighing software. Building on the field-proven G4 platform, the G6 summarises multiple load-cell channels into a main hoist while monitoring auxiliary hoists, detects imbalances, compensates for rolled-out rope and reads stable values even on a swinging load.
- Real-time load monitoring and lifecycle measurement. Track live weight, full-load hours, maximum loads and overload events to support process control, preventive maintenance and reduced downtime.
- ATEX/IECEx certified load cells. Robust sensing built for humidity, vibration, extreme temperatures and corrosive or explosive atmospheres, with IP67 ingress protection.
- Flexible integration. mV/V or 4–20 mA outputs and protocols including Modbus, PROFINET, PROFIBUS, DeviceNet and EtherNet/IP let the system adapt to your equipment instead of forcing changes to it.
- New-build or retrofit. Modular, scalable designs make retrofit crane weighing straightforward - in our experience, often with no modification to the crane structure.
Functional Safety and Compliance, Built in
Overload protection is not a feature we bolt on — it is engineered into the load cell itself. BLH Nobel load cells provide a reliable signal that can be transmitted securely to a standard safety PLC, enabling rapid reaction before an overload becomes an accident or a failure.
- Certified to EN ISO 13849 / EN 61508 for functional safety.
- Single-channel configurations meet PLc / Cat. 1 / SIL 1; dual-channel configurations with built-in redundancy reach PLd / Cat. 3 / SIL 2.
- Available for cranes with up to eight hoists, supporting overload protection, imbalance detection and accident prevention.
- Backed by an accredited force laboratory operating to SS-EN ISO 17025 since 1984, with full documentation: FEA and theoretical calculations, type approval or third-party design verification, material certificates, ITPs, FATs, MBRs and Certificates of Conformance.
Solutions for Every Industry and Crane Type
A single crane weighing platform serves very different worlds. BLH Nobel adapts the same proven technology to the demands of each one.
Steel manufacturing
accurate weighing of raw materials and finished product, from molten steel to slabs, blooms and billets, with overload detection that protects high-value cranes.
Offshore
specialised offshore crane load monitoring for knuckle jib, lattice boom, pedestal, A-frame, Colibri and gangway cranes, typically installed in the sheave and certified to the strictest regulatory standards.
Ports and logistics
robust weighing for gantry, crawler, pedestal and shiplift systems, optimising load handling and enabling weighing while lifting for greater throughput.
Construction
real-time monitoring of crane loads for safe, efficient operation.
Paper mills
precise materials handling that supports production efficiency.
The same expertise covers a wide range of overhead and gantry crane weighing installations — crane hook yoke, sheave, bogie and double-frame mounting — for both new equipment and retrofits.
Case Study: 100+ Cranes Protected at a Global Steelmaker
A global leader in high-strength steel has trusted BLH Nobel since the 1990s. Across Swedish sites operating a fleet of more than 200 cranes, the customer needed heavy-duty, highly accurate weighing systems that could be retrofitted without disrupting production — where every hour of downtime costs roughly $100,000.
After reviewing 100 of the most critical cranes, BLH Nobel designed and manufactured custom load cells and instrumentation for a precise fit, installing them during scheduled service stops with no modifications to the crane structures. The result: high-accuracy weighing now runs on more than 100 overhead and gantry cranes — including five 320-ton cranes lifting molten steel — delivering 0.25% accuracy, real-time load data for process control, reliable overload detection and the monitoring needed for preventive maintenance. The partnership has since extended to more than 220 scales across the customer’s operations.
Talk to BLH Nobel About Your Cranes
Whether you are specifying a new crane, retrofitting an existing fleet or bringing older equipment up to current safety standards, our engineers will design a crane weighing solution around your application — and deliver it, often within weeks.
Contact our crane weighing specialists to discuss your requirements, or download the Crane Weighing Solutions brochure to see the full range of load cells, the G6 instrument and installation options.