Revolutionary Drive Controller for Gearless Mills

Ringmotor of the Gearless Mill Drive (GMD) System. CYCLOCONVERTER Principle The Cycloconverter is a frequency changer which converts a poly-phase voltage with the frequency f1 into a single or poly-phase voltage with a different, lower frequency f2. On Gearless Mill Drives (GMD), the operational output frequency varies from 0.3 Hz up to …

Gearless Mill Drives: Go Gearless For Highest Availability

Gearless_mill_drives_LR_web - Free download as PDF File (.pdf), Text File (.txt) or read online for free. ABB

Gearless mill drives

Gearless mill drives Go gearless for highest availability, reliability, flexibility and efficiency. 2 GEARLESS MILL DES The gearless mill drive eliminates ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings, used within a conventional mill drive system. By mounting the rotor poles directly onto

Training Simulator for Gearless Mill Drives

Detail of Training Simulator: drive control section with the SINAMICS controllers and the interface board to power section Your challenge: Maximum operations at the bottleneck The Gearless Mill Drive (GMD) is potentially the most critical bottleneck in the mine production process. Each hour of downtime can result in a heavy financial loss.

Gearless mill drives

Gearless mill drives Go gearless for highest availability, reliability, flexibility and efficiency. 2 GEARLESS MILL DES The gearless mill drive eliminates ring-gear, pinion, gearbox, …

GMDs: the driving force behind sustainable mill operations

Gearless mill drives: better by design . GMDs eliminate the need for a ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings, which are used in a conventional mill drive system to transmit the torque from the motor to the mill. Instead, the torque is transmitted through the magnetic field in the air gap between the stator and …

Gearless Mill Drive (GMD), para molinos

Gearless Mill Drive (GMD), accionamientos sin engranajes para molinos ABB. MAYO 2009 7 mecánica, la eficiencia es mayor, la disponibilidad es más alta, teniendo a su vez ventajas medio ambientales. En la minería estos son temas muy importantes que conducen

How digitalized gearless drive technology …

Technologies for extraction and processing, including gearless mill drives (GMDs) and gearless conveyor drives (GCDs), help operators save energy and achieve greater throughput at large mills with higher grinding …

REMOTE DIAGNOSTIC SERVICES FOR GEARLESS MILL …

Gearless mill drives As was mentioned above, a gearless mill drive constitutes both an important part, but also one of the most critical elements of a concentrator or a cement plant. Their purpose is to ensure the continuous rotation of specific types of tumbling mills, more specifically autogenous grinding (AG) mills, semi-

ABB Library

Go Gearless Gearless Mill Drives. ID: 3BHT 490 275 R0001 REV E, REV: F. English. Brochure. Brochure. . PDF. file_download. 0,77 . ... With this innovative …

Go Gearless Gearless Mill Drives

Go Gearless Gearless Mill Drives - ABB

Gearless Mill Drive Protection Improvements and Its …

Laguna Seca concentrator uses a SAG mill and three ball mills, all driven by gearless mill drive (GMD) systems. Table 1 gives an overview of the basic technical data of the installed drives. TABLE I. MILLS AND THEIR DRIVES IN THE LAGUNA SECA PLANT Equipment Drive Comments SAG Mill (Semi-autogenous Grinding) Quantity : 1 unit

Grinding | Innomotics

Innomotics (former Siemens Large Drives) has provided 100 gearless mill drives to the mining industry since 1980. In these thirty-plus years, gearless mill drives have accumulated a combined total of over 500 years in operation time – and this number is steadily growing even as you read this. This is a benchmark we are immensely proud of.

SIMINE Gearless mill drives

Gearless mill drives. Longer service intervals thanks to low-wear drive processes SIMINE Gearless mill drives' rpms can be tailored to your operations at any time, and are infinitely variable and uncomplicated. Whether manually or fully automatic – rpms can be adjusted to account for the proper-ties of the ore, resulting in significantly less

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS …

gearless motor mounted directly onto the mill. In addition, a gearbox can be used to reduce the speed of a high speed motor. This gearbox is then placed between the high speed motor(s) and pinion(s) and the low speed shaft driving the ring gear. Thus, there is the decision between gearless drives and drives using a gear, and, if gear driven,

The Siemens 42ft gearless mill drive, still an …

next size Gearless Mill Drive, i.e. a 42ft mill. It is a dual design approach considering, on the one hand, the experi-ences Siemens made with Gearless Mill Drive (GMD) instal-lations over the past 40 years and, on the other hand, using computerized design tools calculating the system behavior where experience does not yet exist.

Gearless mill drives

• 28 MW GMD for 42' SAG mill Whether it is size or an installation at the highest altitude (4600 m.a.s.l.), ABB's GMDs are well positioned to contribute to the building of larger and ever more powerful mills. — Leading the gearless mill drive evolution The ABB gearless mill drive (GMD) is the most powerful mill drive system available,

ABB's new Gearless Mill Drive generation: Maintenance …

The gearless mill drive (GMD) has been continuously developed since its introduction in 1969. The structural design, the electrical parts and of course motor monitoring and control have all experienced major developments that have enabled larger, more efficient operations and higher productivity.

ABB's Gearless Mill Drive Ring Motor factory in Bilbao

Building on over 130 years of experience in the mining industry, ABB's Ring Motor factory located in Galindo provides the engineering and manufacturing of ring motors, the main component of ABB's Gearless Mill Drive (GMD) systems manufactured by ABB for the mining sector. The 20,000 m2 plant manufactured over 110 motors delivered in over 25 …

How digitalized gearless drive technology results …

Eleven 5MW gearless drives with synchronous motors running at low speeds (50-60rpm) drive three conveyors; two with four motors each and one with three. Two 20MW conveyors transport the ore from the open …

CHH624 – Gearless Mill Drive Operation and …

CHH624 – Gearless Mill Drive Operation and Maintenance Course goal The goal of this course is to provide participants with the required practical knowledge and in-formation on safe operation and maintenance of the gearless mill drive (GMD) system. This training will help to enhance the operation and the maintenance of the GMD in order to ensure

Experto de ABB da a conocer plataforma basada en Machine …

Experto de ABB da a conocer plataforma basada en Machine Learning para mantenimiento predictivo de Gearless Mill Drives (GMD) En Procemin Geomet 2023 ... permitiendo un futuro más sostenible y eficiente en el uso de recursos. go.abb/processautomation. Links

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS …

The first Gearless Mill Drive (GMD) with a power of 6.5 MW was installed 1969 in a cement milling process in the cement plant Le Havre in France. In the first few years, the …

Frozen charge detection and automatic loosening with …

one 26ft, 16 MW Ball Mill in Zambia, all three mills put in operation in 2008, as well as Los Bronces, Confluencia in Chile equipped with one 40ft SAG Mill of 22 MW and two 26ft Ball Mills of 16.4 MW commissioned in 2011. In the light of increasing interest in that technology various further Gearless Mill Drives with FCS are presently being

Gearless mill drive training courses

ABB is number one in gearless mill drives (GMD) and combines its extensive industry knowledge with its application experience to select the most economical drive solution for your particular circumstances. The wrap around motor is designed with so-called Roebel bars for the stator winding, which have a positive impact on the efficiency.

Increasing availability through advanced Gearless Drive …

The Gearless Mill Drive system consists of the ring motor with its feeding cycloconverter, pre-installed in an E-house. It also includes the excitation rectifier, the automation sys …

TECHNICAL AND COMMERCIAL BENEFITS OF …

gearless motor mounted directly onto the mill. In addition, a gearbox can be used to reduce the speed of a high speed motor. This gearbox is then placed between the high speed motor(s) and pinion(s) and the low speed shaft driving the ring gear. Thus, there is the decision between gearless drives and drives using a gear, and, if gear driven,

Making remote mines and low ore grades economical and …

The six ABB GMDs, which are the most powerful mill drive systems on the market are all now in continuous operation. Two 28 MW gearless mill drive systems (GMDs) are operating in the mine's 40 foot SAG mills and four 16.5 MW GMDS are employed in 26 football mills along with associated control systems.

QdX4 Mill Drive

The QdX4™ Mill Drive was developed in close collaboration with both CMD and Ferry Capitain Engineering as a solution for the mining industry for large mill drives. The QdX4™ Mill Drive features internal torque splitting capability transmitting motor input power to the pinion shaft and equally dividing into two mill pinions.

SIMINE Gearless mill drives

Chapter 01

Citation preview. Go Gearless Gearless Mill Drives Robust Available Efficient Compatible Good reasons to go gearless In minerals processing, profit requires throughput. Grinding low-grade ores calls for high volume mills and round-the-clock reliability. High power, huge capacity, and brute strength are balanced against critical bottom-line issues like …