Mining
Industries
MINING
Prepared for the harsh reality. CG Drives & Automation products are well proven in mining applications around the world. Robust construction and advanced functionality means they handle your heavy operations in a reliable and efficient way, whether they are crushers, conveyors, hoists, pumps or fans.
High dynamics for crushers and conveyors.
Our AC drives offer high accuracy in dynamic applications such as crushers and conveyors. They ensure the right feeding rate by adapting motor speed to load variations, minimizing energy consumption and wear. Direct torque control handles abrupt load changes and overcomes initial peak loads,
reducing mechanical stress and preventing interruptions and false trips. The range covers motor powers up to 3,000 kW for up to 690 V mains voltage. Units with liquid cooling are available as an option.
Full power for efficient starts and stops.
The direct torque control offers efficient starts of a heavily loaded crusher or conveyor by also utilizing the full motor capacity from standstill. Our softstarters handle this by boosting the torque. Minimized start currents are still ensured, meaning less mechanical stress and lower installation and energy costs. Both products have integrated vector braking for quick and safe braking without the need for mechanical brakes.
Energy savings in pumps and fans.
Soft starts of your fans reduce the hydraulic and mechanical stress on pipes and gaskets. Linear pump stops eliminate the risk of water hammer, without costly motor-controlled valves. This is ensured with our softstarters and AC drives. The AC drive in addition offers considerable energy savings by continuously adapting motor speed to demand. A sleep function saves further energy and automatic pump rinsing makes sure efficiency is maintainted.
Patented technology prevents damage.
A built-in load monitor protects your process against damage and inefficiency. Any over or underload situation is detected immediately, across the entire speed range. This allows for preventive action, if a crusher jams, a pump is running dry or a pipe is blocked. No energy is wasted and unplanned downtime is minimized.
Features
- Higher power to weight ratio
- Robust steel frame
- Spider type shaft
- Double ended radial ventilation
- Solid deep rotor bars in single cage
- Special double cage as per drive
- End-shield mounted bearings
- Antifriction/sleeve bearings
- Dynamically balanced rotors
- Highly reliable class ‘F’ insulation with class ‘B’ temp rise
- Ease of maintenance
- Space heaters
- On-line greasing for bearings
Technical Specification
| Shaft height IMB3 | 355 – 1400 mm |
| Type of mounting | IMB3, IMV1 |
| Frame construction | Fabricated Steel |
| Standards | IEC 60034 / IS / 325 |
| Degree of protection | IP55 as per IS 4691 |
| Frame size IMV1 | 740 – 2500 |
| Cooling | IC8A1W7 |
| SCR (Squirrel cage rotor) / SR (Slip Ring Motor) | |
| Insulation | Class H, F with VPI |
| Enclosures | IP55 |
Quality work is based on a quality policy that focuses on customer satisfaction, employees commitment and constant improvement. The quality system has been designed to meet the customer’s expectations and demands. The quality system shall also support and facilitate our activities in pursuing a serious and long-term customer cooperation. We have chosen to adapt the system to follow the internationally recognized standard ISO 9001 : 2000 and ISO 14001 : 2004. The enterprise has a quality management system that complies with the international standard.