INDUR motor Germany INDUR model INDUR price

INDUR motors are permanent magnet motors commutated or controlled by electronic circuits or current. Permanent magnet brushless motors come in two types: sine wave drive and square wave drive. Those with rectangular wave drive current are commonly referred to as permanent magnet brushless DC motors, while those with sine wave drive current are commonly referred to as permanent magnet AC servo motors. Based on sensor type, they can be classified into sensor-equipped motors and sensorless motors.

INDUR motor classification

Motors feature simple structure, compact size, high efficiency, and high power factor. Permanent magnet synchronous motors have achieved success in medium and low-voltage applications across various industries, including metallurgy (ironworks and sintering plants), ceramics (ball mills), rubber (internal mixers), petroleum (pumping units), and textiles (two-for-one twisters, ring spinning frames), gradually accumulating design and operational experience. Classified by permanent magnet structure: Surface-mounted Permanent Magnet Synchronous Motor (SPMSM), Interior Permanent Magnet Synchronous Motor (IPMSM). Classified by stator winding induced EMF waveform: Sine wave permanent magnet synchronous motor, Brushless permanent magnet DC motor. The starting current multiple of a permanent magnet synchronous motor is approximately 9 times, which is 10% higher than that of an asynchronous motor. Permanent magnet synchronous motors cannot use reduced-voltage starting methods. Under reduced voltage supply conditions, their asynchronous starting torque drops more significantly than that of asynchronous motors, causing starting difficulties. Regarding the self-starting characteristics of permanent magnet synchronous motors and feedback current during system short circuits, parameters vary greatly among different manufacturers. Due to the difficulty in obtaining relevant data, the application of permanent magnet synchronous motors introduces some uncertain factors to the short-circuit level and starting calculation verification of plant power systems.

INDUR motor structure

Motor rotor structure: The rotor is the rotating part of a three-phase asynchronous motor, consisting of the rotor core, rotor winding, shaft, and fan. The rotor core is also part of the motor's magnetic circuit, made of stacked silicon steel sheets with uniform slots punched on the outer circumference, and fixed to the shaft. The rotor winding is placed in the slots of the rotor core. Depending on the rotor winding structure, three-phase asynchronous motors can be divided into squirrel-cage and wound-rotor types. The rotor winding of a squirrel-cage asynchronous motor is named for its resemblance to a squirrel cage; its structure consists of copper bars embedded in the slots as conductors, with the ends of the copper bars welded together by short-circuit rings. Small and medium-sized squirrel-cage asynchronous motors use cheaper aluminum instead of copper, casting the rotor conductors, short-circuit rings, and fans into one piece to form a cast-aluminum squirrel-cage rotor. The core of a wound rotor is identical to that of a squirrel-cage rotor. The rotor winding is similar to the stator winding, made of insulated wire wound according to a specific pattern and embedded in the rotor slots to form a three-phase symmetrical winding. Typically, the ends of the three windings are connected together, and the start ends are connected to three mutually insulated copper slip rings fixed on the shaft, forming a star connection. The rotor winding connects to an external three-phase rheostat via the slip rings and brushes above them, for motor starting and speed adjustment within a small range. The working principles of squirrel-cage and wound-rotor three-phase asynchronous motors are the same; the only difference lies in the rotor winding structure.

INDUR motor classification

Motor classification: 1. Hydraulic motor: Conventionally refers to an energy conversion device that outputs rotational motion, converting hydraulic energy provided by a hydraulic pump into mechanical energy. 2. High-speed motor: Gear motors offer advantages such as compact size, light weight, simple structure, good manufacturability, insensitivity to oil contamination, shock resistance, and low inertia. Disadvantages include significant torque ripple, lower efficiency, and low starting torque (only 60% to 70% of rated torque), as well as poor low-speed stability. 3. Vane motor: A hydraulic motor where vanes in the rotor slots contact the housing (stator ring), causing the rotor to rotate under the action of incoming fluid. Compared to other motor types, vane motors offer compact structure, smaller outline dimensions, low noise, and long service life. Their inertia is lower than that of piston motors, but their contamination resistance is worse than that of gear motors. Speed cannot be too high, generally operating below 200r/min. Due to significant leakage, vane motors are unstable under load changes or at low speeds. 4. Radial piston motor: Offers excellent reverse characteristics, ensuring absolutely quiet operation, suitable for servo systems. Can operate bidirectionally as a motor or pump. 5. Axial piston motor: A cycloidal hydraulic motor with shaft distribution supported by rolling bearings. It features an integrated design of the output shaft and distribution mechanism, inserted-tooth stator and rotor, rolling bearing support at both ends, and specialized imported rotary seals, allowing the motor to operate under higher back pressure. 6. Low-speed hydraulic motor: Simple structure, reliable operation, wide variety of specifications, and low price. Disadvantages include larger volume and weight, and significant torque ripple. 7. Cycloidal motor: A small, low-speed, high-torque hydraulic motor with internal meshing cycloidal gears. It has a simple structure, good low-speed performance, and strong short-term overload capacity. Inside the cycloidal motor, there is a stator and a moving vane. The stator, vane, and drive shaft divide the motor into two chambers, each with an oil port. When one port admits oil, the other discharges it, pushing the vane to swing. 8. Piston pneumatic motor: Composed of connecting rods, crankshaft, pistons, cylinders, body, and air distribution valve. Compressed air supplies each cylinder sequentially through the air distribution valve, expanding to perform work, pushing the crankshaft to rotate via the connecting rods. Its power mainly comes from gas expansion work.

Weidou Intelligent Technology specializes in selling German INDUR motors, INDUR motors, INDUR drives, INDUR synchronous motors, INDUR servo motors, INDUR DC motors, INDUR AC motors, INDUR stepper motors, INDUR synchronous motors, INDUR asynchronous motors, INDUR single-phase motors, INDUR three-phase motors, INDUR drive motors, INDUR geared motors, INDUR electric motors, INDUR original imports from Germany. Customers are welcome to inquire and place orders.