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18 <strong>Issue</strong> N°11 • November 2007 Micro Linear NEW Brushless micro motor ■ Smallest dimensions with only Ø 3 mm ■ No cogging ■ For combination with planetary gearhead, output torque up to 0.88 mNm ■ Available with spindle and gearhead as linear actuator and other custom executions Based on ironless, self supporting skew-wound copper coil Please visit our German Exhibition: SPS/IPC/DRIVES, Nuernberg 27.– 29.11.07 · Hall 4, Booth 520 DR. FRITZ FAULHABER GMBH & CO. KG Tel. +49 7031 638-0 www.faulhaber-group.com/smoovy For SLI: enter 14901 at www.tim-info.com/ien Motors & Drives Drives move mining town in Sweden At LKAB’s concentrating and pelletizing plants in Kiruna, drives control pumps, fans, conveyors and feeders Courtesy of LKAB Kiruna, a tiny mining town 200 km north of the Arctic Circle in the northern Sweden is today known also as a town that is sinking. Therefore, Kiruna is in the process of being moved to another location because of the cracks that have been developed in the mine wall under the town during its 100-year long history in mining. To save the town and to provide an international hightech minerals group LKAB, with access to the iron ore lying under Kiruna, the town officials have made extensive plans for relocating the town centre. LKAB, in turn, has started a major investment program of 1.1 billion EUR to increase production capacity for iron ore products in the region from the current to 30 Mt by 2008. Reliability and fast service are the keys High production goals cannot be reached without reliable and smoothly operating processes. When LKAB was selecting a drives supplier for their new concentrating and pelletizing plants in Kiruna, a vital part of their major investment program, they knew whom to turn to. During a period of several years, Vacon has supplied roughly 100 AC drives to control pumps and fans at LKAB’s concentration plant (KA2) in Kiruna, and the ventilation system in the tunnels of the mining caves in Malmberget, 75km from Kiruna. In Malmberget, some of the Vacon AC drives are located almost 1,000m under ground. This depth poses many risk factors to electrical equipment. Consequently, for the essential task of pump, fan, conveyor and feeder control at LKAB’s new concentrating plant (KA3) and pelletizing plant (KK4) under construction in Kiruna, LKAB has chosen Vacon AC drives. About 200 air- and liquid-cooled NXP drives of 690 V will be controlled via Profi bus. CANbus will be used for communication with the maintenance system. Commissioning of the plants will take place this winter, and the plants are expected to be operational in April 2008. In mining processes where a downtime can raise to hundreds of thousands of Euros per day, the reliability of the equipment is of utmost importance. The other fundamental issue is fast service. With Vacon’s subsidiary located in Sweden, support and service are available at short notice when needed. Liquid cooling for demanding environments Liquid cooling enables the use of cabinets with a high protection class – this is why the liquid-cooled AC drives are ideal for the underground excavation industry, where dust and humidity are major risk factors. These drives are well suited for locations where air cooling would be difficult, expensive or impractical, or where the installation space is at a premium. The liquid-cooled units, which use normal drinking water as coolant, have a very compact construction and a low noise level as no large fans, additional air conditioning or filtered ventilation systems are needed. A low noise level also means a better working environment. An additional factor that contributed to the choice was their heat loss transportation. Inconcentrating and pelletizing plants, the air is filled with coal and iron ore dust. The liquid-cooled drives make it possible to transport the heat losses outside the electrical room without ventilating the room and cabinets with the surrounding air. A town driven to a new location With an ore body of about 4 km long and an estimated depth of more than 2 km, LKAB Kiruna mine is the world’s largest, most modern underground iron ore mine. To date, more than one billion tonnes have been mined, and the present main level is at a depth of 1,045m. Mining towns elsewhere in the world have struggled with the problem of sinking earth, but in most cases, the approach has been to prop up sinking buildings rather than move them. This massive and expensive move operation of Kiruna, a city of 23,000 people, will take a few tens of years, maybe even more than one hundred years. VACON Tel. +358-20-12121 • Fax +358-20-1212205 For SLI: enter 20735 at www.tim-info.com/ien
Brushless Motor optional IP67 version With two options of voltage range (7.5-59 or 12-95VDC), the IntB range is capable of producing continuous power outputs of 0.5kW with a peak value of 1kW. In addition, it also offers a wide range of feedback and positioning options, allowing IntB motors to be easily integrated into various systems. As all the electronics are integrated into the motor, the IntB range of motors have far less wiring, reduced conduits and panel space. MOTION CONTROL PRODUCTS Tel. +44-1202-599922 Fax +44-1202-599955 For SLI: enter 20544 at www.tim-info.com/ien 750W Motor with IP65 protection The large MAC800 motor (750W) is suited for applications in more demanding environments. The IP65 protection of the motor has been achieved by replacing the ventilator built into the cooling fins with large fins. In addition, a water-tight seal of the axle bearing has been achieved using an IP67 Rulon Teflon bush. This has a low friction and requires no lubrication. The flange and shaft are made of stainless steel. JVL INDUSTRI ELEKTRONIK Tel. +45-45-824440 Fax +45-45-8225550 For SLI: enter 20606 at www.tim-info.com/ien Speed Control integrated velocity control The MdrivePlus product line increases functionality with the integration of a digital oscillator for accurate speed control in the MDrive34Plus2 Speed Control. This all-in-one solution utilises a NE- MA size 34 high-torque brushless 1.8° motor, with NEMA size 17 and 23 motors also available. The MDrive34Plus2 accepts a broad input voltage range from 12 to 75VDC. Oversized input capacitors are used to minimize power line surges. The product offers an operating range of -40 to 75°C. INTELLIGENT MOTION SYSTEMS Tel. +1-860-2956102 Fax +1-860-2956107 For SLI: enter 20669 at www.tim-info.com/ien Electric Motors 0.09 to 200kW New For SLI: enter 16894 at www.tim-info.com/ien Motors & Drives <strong>Issue</strong> N°11 • November 2007 19 The 4KTCD series of electric motors is suitable for use in potentially explosive dust atmospheres in zones 21 and 22. Features include an axis height of 71 to 315mm and 0.09 to 200kW power. The standard explosion protection for the electric motors is II 2D IP65 135ºC. The increased mechanical protection of class IP65 prevents the potentially explosive dust atmosphere from permeating into the electric motor and igniting. The motors are ATEX certified. BARTEC Tel. +49-7931-597198 • Fax +49-7931-597498 For SLI: enter 20442 at www.tim-info.com/ien Drive System Highly effi cient compact drives – outstanding performance / volume ratio Brushless DC-Servomotors The modern design optimally complements the FAULHABER product range. The new line of sensorless, electronic commutated DC-Servomotors is impressive: Ø 15 & 22 mm, lengths 24 ... 48 mm The characteristics of these motors in modular design are remarkable: Excellent dynamics: - FAULHABER system coil - Neodymium magnet rotor Sensorless, electronic commutation Very reliable - long life The new servo amplifi er - an ideal drive for speed control, making these motors true power packs! Miniature Motors flat brushless DC With a footprint of 32 x 11.7mm, nuvoDisc is well-suited for space-constrained applications such as portable respirators and barcode scanners. A high-speed slotless design significantly reduces vibration and eliminates cogging to provide smoother operation and better accuracy for maintaining a stable speed compared with conventional miniature flat motors. Offering speeds of up to 50,000rpm and mechanical power output of up to 30W, nuvoDisc also reduces power supply requirements by drawing less current. This minimises generated heat. DANAHER MOTION - PORTESCAP Tel. +41-32-9256111 • Fax +41-32-9256596 For SLI: enter 20540 at www.tim-info.com/ien ø 15 mm L 24, 36 mm BLD 4803-SL2P ø 22 mm L 32, 48 mm MINIMOTOR SA 6980 Croglio, Switzerland Tel.: +41 (0)91 611 31 00 Fax: +41 (0)91 611 31 10 Email: info@minimotor.ch www.minimotor.ch
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