Germany
Manufacturer/ Producer
Germany
Our synchronous and asynchronous machines are distinguished by their high energy efficiency. The motors are reliable, safe to operate and robust. With our three-phase motors we offer special machines for almost any application. They are designed and built for the specific requirements of the respective drive application. We offer individually adapted motors – both in terms of electrical layout and mechanical design. We provide made-to-measure units, for example, for existing foundations or special bearings to absorb additional forces. The power network conditions on site are taken into account for the electrical layout to ensure that only minor voltage drops occur and a reliable run-up is guaranteed. Our portfolio comprises asynchronous motors with cage or slip-ring rotors as well as synchronous motors with brushless or static excitation.
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LDW is a leading competence centre for DC machines. Our expertise has developed and been proven over many decades. As one of the few globally active manufacturers, we are able to replace machines from other providers with one from LDW – taking into consideration electrical and mechanical specifications and adapting them to customer-specific applications. The machines are individually adapted to the respective application. Our spectrum ranges from small DC machines to very large products. All machines are manufactured individually according to the requirements of our customers. Continuous research and development has in recent years led to great improvements with regard to space utilisation and maintenance requirements of DC machines. In addition, the thermal and magnetic efficiency was increased and materials were optimised. The service life of brushes was significantly extended through this process.
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Our compact asynchronous motors are distinguished by high torques in combination with a small size. They are highly dynamic with a low inertial moment, with a proven design as well as electromagnetically compatible for optimal, compact performance levels. We develop our compact asynchronous motors specially as speed-controlled drivers and for a supply from frequency converters. They also consist of a flexible platform system and can be adapted to specific customer requirements. The housing is angular and jacketless. Being ventilated by a separately driven fan, the motors can constantly deliver the full torque over the entire speed range. The optimised control behaviour with converter operation means that these machines can replace DC machines.
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Synchronous generators from LDW are highly versatile and are used in shipbuilding, power stations and many other applications. Our generators can be driven by gas, steam or water turbines as well as diesel engines and other drivers. Synchronous generators from LDW have a high degree of efficiency and operate with extreme effectiveness. We develop and manufacture generators of the highest quality standards.LDW supplies synchronous generators with an output range from 4,000 to 60,000 kVA.Our synchronous generators are specially optimised for the specific application of the customer, e.g. if used for water power turbines with regard to runaway speed and turbine force absorption. Where diesel generator sets are used, the vibration load in particular is taken into account. On request, we will also construct the generator with a forged-on flange. A high degree of efficiency is ensured for all generators.
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Application Asynchronous motor and synchronous motor as drives for turbo compressors in a steel mill.
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Application Synchronous motor for compressor in an air-separation plant.
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Application Asynchronous motor drives a boiler feed pump in a power plant.
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Application Motors in explosion-proof design as drive for shearer loaders in coal mines.
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Application DC-motor as drive for a mine winder in a copper mine. The new motor replaced a 70 year old British DC-motor.
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Application Motor replaced an old motor from 1977 and is mounted on winder shaft in a coal mine.
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Hastedter Osterdeich 250
28207 Bremen - Germany
Germany
The new direct-current motors with worm gear enable quiet and economically efficient operation with drylin® lead screw units. The worm wheel has a spline to which the drive pin of the linear unit is connected. As a result, a motor flange and coupling are unnecessary and, this taken in conjunction with the motor adapter angled by 90°, the structure of the linear module is very compact. Thanks to the integrated magnetic rotary encoder (2-channel hall), the new DC motors are suitable for positioning. - Space-saving and compact design - Easy to fit - Quiet operation - Rotary position encoder included - Suitable for: SLW-BB, SAW, ZLW
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Features – 4-pole rotor with resin bonded NeFeB-magnets – 3-phase winding in delta-connexion – 3 inside hall sensors for rotor position detection – Housing made in aluminium – End shields in precision machined aluminium parts – Ballbearings on both sides
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Continuous adjustable orifice for adjusting a defined flow precisely technical operation • Continuously adjustable when installed • Manual adjustment with protection • Defined caracteristic curve • With travel stops in the end positions • Space saving wafer type construction • Low weight • Quiet operation • High Kvs values
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— Touchless and wear resistant magnetic incremental encoder — Symmetric amplitude corresponding to supply voltage — Open collector output — Integrated pull-up resistors — Operating voltage = 4,5V - 24V — Integrated design (IGMi) possible — LineDriver function possible (LD)
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