SM-ML SERIES STEEL MILL HEAVY DUTY DC MOTORS (MILL MOTORS) Output data – Frames SM802-804 Ratings are referred to 230V. Motors can work with voltage up to 500V (with maximum torque lower than the one indicated for 230V; please ask Sicmemotori). SM series motors can be supplied, with same ratings, with 460 and 550V also.
Since then, GE has been designing, developing and perfecting DC motor technology for industrial applications—culminating in the MD800 Armored Mill Motor. Applications and Standards This low base speed, high torque motor is used in high performance, automatic …
At synchronous speed, no torque is produced by the motor, because no current is induced in the rotor windings. If the rotor rotates at a lower speed than the stator field, the motor runs in motoring mode. Otherwise, the motor operates in generator mode. The maximum torque, which can be obtained at the motor shaft, is called pullout torque.
I have a 1.5hp DC treadmill motor on my mill drill. I got it and the speed control dirt cheap from surplus center. They don't have any more of either the motor or the speed control in stock, but you can still scrounge treadmills from craig's list. The speed control and the motor were about $120 together, so it worked out well.
motors that provide the required torque and horsepower to get massive amounts of weight mov-ing. On the coldest days of winter the series motor that starts your car overcomes the extreme cold temperatures and thick lubricant to get your car going. Shunt DC Motor The shunt motor is probably the most common dc motor used in industry today.
Series SM-ML for heavy duty (MILL motors) • A.I.S.E. St. N. 1 (September 1968) - IEC 34-13 Standards • Splittable massive frame for SM802-804 frames • Not splittable fully laminated frame with compensating windings for ML806-818 frames • Standard cooling IC410 (TENV) and IC37 (TEFV)
Comital is a rolling mill manufacturing aluminum foil. Located just a few minutes away from the motor factory in Västerås, Sweden. In 2008, Comital changed an LAD 710 from the 70's to a new DMI 400V. Despite its smaller size, the DMI …
It is the intent of this standard to establish torque ratings and dimensions for shoe and caliper disc brakes when applied to AISE AC and DC mill motors for the purpose of interchangeability. The brake and motor combinations listèd herein cover the range from 50 to 150% of the 30 minute and 60 minute TENV motor torque ratings. Brake torque rat-
The linear model of a D.C. motor torque/speed curve is a very good approximation. The torque/speed curves shown below are actual curves for the green maxon motor (pictured at right) used by students in 2.007. One is a plot …
Aise Standard 1 (D-C Mill Motor Standards) by, September 1968, Assn for Iron & Steel Technology edition, Paperback - Revised edition
Kirloskar Electric, manufacturer of Aise Series Mill Duty DC Motors, Auxiliary Mill Motors ranging in 1.5 to 970kW.
IEC VARIABLE SPEED DC MOTORS INTEGRAL HP Standard Motor Features the windings at working temperature. (Note that the variation in speed can be above and below rated speed.) kW per 1000 r/min Base Speed Tolerance Not less than 2.5 but below 10 ± 7.5% 10 and upwards ± 5% BEARINGS Standard IEC DC motors utilize ball bearings.
hold at 10% of the full load motor current. The torque ratings obtained by the coils comply with the latest AISE-NEMA standard. For special voltages for applications, please contact the factory. AC STATIC RECTIFIER On AC powered equipment where customers prefer a DC brake, an AC/DC controller can be provided. This unit includes
DC motor drives Figure 1: Control loop of a DC motor drive Features – Field orientation via mechanical commutator – Controlling variables are armature current and field current, measured DIRECTLY from the motor – Torque control is direct In a DC motor, the magnetic field is created by the current through the field winding in the stator.
Menzel manufactures fully laminated mill motors by default. In special cases or on request, split case designs are also possible. Typical applications are in steel and aluminum rolling mills as well as mining. For a South European steel plant, Menzel has recently built three mill motors in size 812, with 200% overload capacity, 16 kW/23 kW ...
The principle of a DC motor performing in steady-state is assumed to be known, but let us discuss some basic facts below. Working Principle of a Separately Excited DC Motor. A schematic cross-section across a two-pole DC motor is presented in the next figure, including the fixed stator S and the cylindrical rotor, introduced as armature A.
Motor torque, load torque and selection of motors 2/43 2.1 Motor speed–torque curve Refer to Figure 2.1 where T st = starting torque or breakaway torque. T m = minimum, pull-in or pull-up torque. T po = pull-out, breakdown or maximum torque, obtainable over …
later when comparing the AC mill-duty motor speed and torque capabilities against the standard and DC mill-duty motors supplied by motor manufacturers. Voltage Source — The standard calls for 230 VDC ratings, but suitable for operation at 500 VDC and reduced torque. This ambiguous lan-guage was added in 1968 when DC rectifiers
Torque Adjustment Torque can be adjusted over a range of 100- to 25-percent rated torque to give op-erating characteristics desired in a speciﬁc installation. Pickup and Dropout Series brakes are designed to pick up (re-lease brake) at 40-percent motor full-load current or less and dropout (set brake) at 10-percent motor full-load current or ...
The following typical motor data is based on the information in AISE Standard No. 1A, AC Mill Motor Standards and NEMA Standards for Wound Rotor Motor Secondary Data. Motor primary currents are based on data published by several motor manufacturers. This information may be used to select the proper crane controllers and crane accessories.
Aise Standard 1 (D-C Mill Motor Standards) on . *FREE* shipping on qualifying offers. Aise Standard 1 (D-C Mill Motor Standards)
viewed somewhat "simultaneously" to develop the best motor for an application. Speed and torque represent the output that will be required to power the application and will affect the size of the motor. A speed and torque rating is the starting point in selecting a motor once the initial constraints are determined.