Encoders for Position and Speed Monitoring in the Mining Industry
Heavy-duty encoders from Hübner Giessen are used in a wide variety of underground and surface mining operations worldwide. Our systems measure rotational speed, position, and velocity in applications such as bucket wheel and bucket chain excavators, stacker-reclaimers, conveyor belt systems, conveyor belts, dump trucks, and large-bucket excavators.
Due to the extreme mechanical and environmental conditions in underground and open-pit mining, the encoder systems must be extremely robust and operate with lasting precision, reliability, and fault-free performance even in the presence of dust and dirt, moisture, temperature fluctuations, and—above all—severe vibrations.
Depending on the application, incremental and absolute encoders, speed and position switches, as well as complete encoder systems are available for reliable position and speed monitoring.
Encoder Systems for Mining Machinery and Open-Pit Mining Facilities
In the mining industry, machinery and equipment are designed according to the type of deposit, the mining method, and local conditions. As a result, the requirements for encoders, mounting configurations, signal transmission, and control systems vary significantly. Hübner Giessen develops customized encoder systems for a wide range of applications in underground and surface mining.
These encoder systems are used in machines and equipment where standard devices cannot be employed. The mounting brackets are custom-designed and manufactured.
Typical applications in underground and surface mining include:
- Surface mining (soft material): Bucket chain excavators, bucket wheel excavators, cableways, stackers/reclaimers (dumpers)
- Open-pit mining (hard material): Rotary blasting drills, mobile and stationary crushing plants, large-bucket excavators, dump trucks, walking shovel excavators
- Material transport in open-pit mining: Conveyor belt systems, conveyor belt transfer stations, belt stations
- Underground mining: Industrial trucks, headframes, mining headframes
- Processing: SAG mills, ball mills
- Bulk terminal: Railcar tippers, ship loaders and unloaders, bucket wheel excavators, stackers/reclaimers, belt loop cars
Discover our Encoder Solutions for Underground and Surface Mining
Where Encoders are installed in Underground and Open-Pit Mining Facilities
Encoders and encoder systems from Hübner Giessen monitor rotational speeds, positions, and velocity on moving components in mining and open-pit mining facilities. These durable, vibration-resistant encoders—designed for extreme environmental conditions—provide high-precision data and ensure consistent and safe plant operation.
Typical applications for encoder systems in mining facilities:
- Excavator drive trains for monitoring the speed control of the travel drives
- Hoisting mechanisms on conveyor systems for measuring load position and speed during lifting/lowering
- Booms of bucket wheel excavators for determining angle and position to ensure safe load handling and rapid detection of unusual load conditions
- Rotation mechanisms on excavators and heavy equipment to measure the rotational movement of the upper and lower carriages
- Conveyor belt drives for speed and rotational speed monitoring to ensure controlled material transport
- Drive motors for speed control to ensure smooth movements
Why Custom Encoder Solutions are important in the Mining Industry
In open-pit and underground mining, factors such as soil conditions, terrain structure, and the material to be mined determine the requirements for the machines and equipment used. For this reason, they generally must be custom-designed. This means that the encoder systems used also require precisely tailored solutions to ensure that the machines and equipment operate with high precision, reliability, and safety over the long term.
Typical challenges with encoder systems in mining:
- Challenging installation conditions, e.g., large distances or hard-to-reach installation sites
- Severe oscillations and vibrations due to the extreme size of the equipment, e.g., in conveyor belt systems
- High mechanical stresses, e.g., due to large moving masses, heavy materials being conveyed, as well as impacts and load cycles
- High demands on housings, seals, and protection class due to dust, dirt, and moisture
- Complex systems with many moving components require precise monitoring and coordination
How Mining Operators benefit from Hübner Giessen Encoders
Hübner Giessen develops customized encoder solutions for mining and open-pit mining operators, machinery manufacturers, and mining suppliers worldwide. We provide consulting services to help select suitable components, electronics, and mounting parts, as well as solutions for signal transmission. With our engineering support, we handle the installation and commissioning of complete systems on-site.
Benefits for mining operators:
- High system availability: Heavy-duty encoders for extreme operating and environmental conditions
- Precise control: through highly accurate, reliable data acquisition
- Lower setup and maintenance costs: durable components with minimal wear
- Improved safety: certified to SIL 2 / PL d for functional safety
- Effective modernization: customized retrofit solutions for existing systems
Benefits for equipment manufacturers:
- Application-specific solutions: customized to machine models, mounting conditions, and measurement tasks
- Easy integration: compatible with common control systems
- Engineering support: Consulting, planning, and commissioning—all from a single source
- Certified components: compliant with international norms and standards (ISO, DIN, SIL, ATEX)
- Complete system solutions: including electronic components, motors, mounting parts, and transmission paths (e.g., fiber optics)
The Benefits of a System Retrofit using Encoders from Hübner Giessen
The massive mining equipment and machinery are often in operation for many decades and lose precision and reliability over time. A custom retrofit with encoder systems from Hübner Giessen ensures that they work flawlessly again—and are generally more accurate than before. We replace old mechanical components with custom-designed electronic solutions. These provide significantly better signal quality. This makes it possible, for example, to improve productivity, increase functional safety, and simplify commissioning after maintenance work.
Common modernization projects:
- Replacement of mechanical cam limit switches and absolute encoders on conveyor bridges and bucket wheel excavators with digital encoders
- Retrofitting of vibration-resistant encoders in open-pit belt conveyor systems
- Integration of safety functions (e.g., rock detection on bucket wheel excavators, emergency stop, overload protection)
Our robust Rotary Encoder Systems for Underground and Surface Mining
We offer a wide range of heavy-duty encoder solutions for mining and open-pit mining. These include optical and magnetic measurement methods for speed and position measurement, as well as our U-ONE / U-ONE Safety universal encoder system.
In the video, you can see the benefits our solutions offer for both new plant construction and modernization projects.
Case Studies: Hübner Giessen Solutions for Underground and Open-Pit Mining
Our case studies provide you with comprehensive insight into the solutions we have developed for various typical challenges in mining technology. In these studies, we showcase selected products and demonstrate how we address specific problems in underground and surface mining.
Through detailed analyses and real-world examples, you can see how our innovative solutions help increase efficiency, reduce costs, and optimize operational processes.
Conveyor belts in open-pit mining: precise speed control under extreme conditions
In open-pit mining, conveyor belt systems are the backbone of material handling….
Case study – Bucket wheel excavator: Optimized stone recognition increases safety
Bucket wheel excavators are used in open-pit mining and are the largest excavato…
Case study: a modern encoder solution improves the safety and precision of a bucket wheel excavator
The gigantic bucket wheel excavators used in the field of mining are some of the…
Case study: a tailor-made encoder system for a Koepe hoist
Around 150 years ago, the world of mining took a huge step into the future with …
Case study: Improving the operating reliability of conveyor belt systems in open-pit mining
In the world of open-pit mining, conveyor belts and their drives are subjected t…
Case Study: More precision, safety and efficiency for a conveyor bridge
The conveyor bridges weighing thousands of tons that are used in open-pit mining…
How to contact Hübner Giessen
Do you need an encoder system for a new mining machine, or would you like to modernize an existing system? Hübner Giessen develops heavy-duty encoder solutions tailored to the measurement task, mounting conditions, environmental conditions, and existing control technology.
Simply contact us using the contact form.
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We look forward to your challenges.