Mining
We have solutions for:
Conveyor Control
Power Efficiency
Downloadable Resources
Optimizing Energy and Uptime for the Mining Industry
TMEIC power and speed control solutions deliver significant energy and maintenance savings in the mining industry. From mine processing to conveyors, excavators and hoists, our solutions maximize output and encourage system efficiencies in mines around the world. TMEIC engineers have identified lost productivity in mining installations and are ready to deliver a unique suite of solutions and mining software to ensure your operation is running at peak efficiency.
Speed & Torque Control for Critical Mining Equipment
TMEIC brings years of medium voltage experience in high torque, slow speed applications like mine hoists, excavators, conveyor systems, ball/sag/high-pressure grinding mills. Variable frequency drives (VFDs) are used to soft start large motors and continuously adjust speed and torque, as dictated by the process. Combined with TMEIC’s exceptional induction and synchronous motors, your site can be assured of a coordinated motor and drive package that is designed, installed and commissioned to last for years to come.
Maintaining good line-side power factor is an important consideration for mine-sites across the globe. With cyclical loads, such as hoists and excavators, TMEIC’s Dyna-VAR™ solution is able to compensate for leading and lagging power factor with quick response times thereby reducing the overall electricity bill.
Applications
TMEIC has a long history providing electric drives for mining excavators and powering and controlling draglines, shovels, and blast-hole drills all over the world. TMEIC serves the surface mining industry mainly through two large OEMs; plus it serves mining users directly through its worldwide service network.
TMEIC combines a variety of proven products and systems to serve the rugged application aboard a mining excavator.
The products or systems below are often used in excavator applications. For detailed information on any of these products or systems, please see the reference materials in the right column.
- DC-EXX IGBT-based state of the art MG Set drive control system for generators, motors and synchronous motors.
- Supervisory PLC and HMI operator interfaces for machine control, diagnostics, and maintenance.
- Vacuum Motor Control and low-voltage MCCs.
- Pre-Wired Power Control Rooms for completely integrated on-board systems.
Systems Engineering by engineers with over 80 years of experience in engineering and applying electrical equipment to excavators.
TMEIC application and sales engineers have extensive experience in the mining industry and are eager to work with you on your next project. Please call or email us using the contact information below.
Maximum uptime and long-term reliability are critical to all applications in surface and underground mining. TMEIC has supplied drive and motor systems for mining hoists worldwide, including:
- AC or DC drive systems
- Overhung AC motors for direct drive hoists
- Control upgrade for existing DC hoist drives
TMEIC has served hundreds of applications in processing of ore, minerals, rocks, and coal worldwide. Maximum uptime and long-term reliability are critical to all applications in surface and underground mining, including ball and SAG mills, conveyors, crushers, separators, feeders, weigh stations, pumps, mine hoists, and many more.
The products or systems below are often used in mining processing applications. For detailed information on any of these products or systems, please see the reference materials in the right column.
- Dura-Bilt5i MV – Family of medium-voltage (2300-4160 V ac) inverter drives.
- TMdrive-10 – Family of low-voltage (440-690 V ac) converters and IGBT inverters.
- TMdrive-30 – Family of medium-voltage (1250 V ac) converters and IGBT inverters.
- TMdrive-70 – Family of medium-voltage (3300 V ac) converters and IEGT inverters.
- LCI – Family of medium-voltage (2300-4160 V ac) drives.
- TMdrive-DC – Family of DC (500-1200 V dc) drives in several form factors.
- We have a full line of AC and DC motors in the power, speed, and enclosure options to meet your needs
Ball and SAG mills form the heart of many mining processes. Drive systems used must be very reliable. Drives are often required to produce high torque (typically 150% of rated or more) during starting.
Frequently mills turn at constant speed, but must be started on weak power systems. Variable speed drives are often used in such situations to accelerate the mill to synchronous speed, and then switch the motor to the utility for continuous operation. One drive often is used to service several mills, using contactors or breakers to select the starting motor. This makes the best use of drive hardware and gives high value to the mill.
When wound rotor motors are employed, the TMDrive-10 Slip Power Recovery Drive (SPR) can help make operations more efficient. This drive operates at high power factor with low harmonics. When operating below base speed the drive returns power to the line, saving on power consumption. The TMEIC SPR drive also allows operation above synchronous speed enabling increased throughput, within the mechanical limits of the system. It is also ideal for retrofits of existing previous generation current source SPR drives.
TMEIC Dura-Bilt5i MV, TMdrive-10, TMdrive-10 SPR, and TMdrive-70 are drives commonly applied to ball and SAG mills. Please click on any of these products for more details.
For many years TMEIC has provided equipment for conveyor applications, including one of the longest known single strand conveyors in the world, moving ore more than 20 miles is powered and coordinated by TMEIC MV drives and controller equipment,
TMEIC continues this tradition by serving this industry with a line of products including motors, variable frequency AC drives, DC drives, motor control centers, switchgear, and power control rooms.
The products or systems below are often used in conveyor applications. For detailed information on any of these products or systems, please see the reference materials in the right column.
- Dura-Bilt5i MV – Family of medium-voltage (2300-4160 V ac) drives.
- TMdrive-10e2 – Family of low-voltage (460-690 V ac) converters and IGBT inverters.
- TMdrive-70e2 – Family of medium-voltage (3300 V ac) converters and IEGT inverters.
- Medium Voltage Motors
