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S series catalog

S series catalog
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S series catalog

Product catalog summary
Symbols and Units of Measurement: The document begins by defining key symbols and units such as nominal power (PN), nominal speed (nN), nominal torque (MN), and efficiency (η).
Three-phase Roller Table Motors: These motors are designed for heavy-duty applications, particularly in rolling mills, featuring robust cast iron construction and optimized cooling even at zero speed.
Features and Benefits: The motors offer high performance and reliability under continuous heavy-duty conditions, are designed for inverter feeding, and come with a three-year warranty supported by a global service network.
Specifications: The motors are IEC standard asynchronous three-phase with 4 and 6 poles, designed for use with inverters in the iron and steel industries. They feature natural convection cooling, cast iron construction, and are available in sizes 112 to 250, rated for IP55 protection with an insulation class of F, and class H available on request.
Selection Tables: Detailed selection tables specify parameters such as nominal power, speed, torque, and efficiency, essential for selecting the appropriate motor for specific applications.
Non-standard Designs and Accessories: Non-standard designs and a wide range of accessories, including brakes and encoders, are available to tailor the motors to specific customer needs.
Specifications: Detailed specifications for various motor models are provided, categorized by size and pole count, with key parameters including power, speed, torque, current, power factor, efficiency, and moment of inertia. The data is valid for nominal voltage and frequency of 400 V 50 Hz, with inverter feeding, a maximum ambient temperature of 50°C, and a maximum altitude of 1000 m.
Duty Types:
  • S1 - Continuous Duty: Operation at constant load long enough to reach thermal equilibrium.
  • S3 - Intermittent Periodic Duty: Consists of identical cycles with a period of running at constant load and a rest period, with cycle duration ≤ 10 min.
Selection Tables: Includes selection tables for different motor sizes and configurations, detailing performance metrics under various duty cycles (75%, 50%, 25%).
Dimensions: Dimensions are provided for motor sizes 112, 132, 160, 200, and 250, facilitating compatibility checks with gear motors.
Coupling Rules: Tables indicate the maximum motor size that can be coupled with parallel or coaxial gear motors of categories G and E.
Non-standard Designs: Motors can be customized for non-standard voltage and frequency (220-525 V), with additional features like H insulation class and double series of thermistor probes.
Brake System: Motors of sizes 132 to 250 can be equipped with a spring-applied electromagnetic brake, providing a braking torque greater than the nominal torque in S1 duty.
Specifications: The document outlines the ability to increase nominal power by 10% in S1 duty, specifies insulation classes H and F, and details alarm and protection temperature thresholds.
Thermal Probes and Encoders: Describes the use of twin sets of thermistor type thermal probes and specifications for hollow shaft encoders.
Non-standard Designs: Motors can be customized with features such as a second shaft end, anti-condensation heaters, and specific mounting positions.
General Indications: Upon receipt, motors should be checked for damage and verified against the order. Proper storage conditions and installation guidelines are outlined.
Safety and Maintenance: Insulation resistance should be measured before service and after long storage periods. Proper electrical connections and grounding are advised to ensure safety.
Customer Responsibility: The customer is responsible for the correct selection and application of the product, unless advised by Rossi's technical personnel.
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Catalog excerpts

S series catalog-1

Motori per vie a rulli Heavy duty roller table motors

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S series catalog-2

Simboli e unità di misura Symbols and units of measurement Motori asincroni trifase per vie a rulli Three-phase roller table motors - Selection tables - Coupling rule - Esecuzioni speciali - Non-standard designs - Indicazioni generali General indications Worldwide Sale and Service Network Worldwide Sale and Service Network Simboli e unità di misura Symbols and units of measurement PN [kW] potenza nominale; nN [min-1] velocità nominale; nK [min-1] velocità nominale al momento massimo; MN [N m] momento torcente nominale; MK [N m] momento torcente massimo; IN [A] corrente nominale; I0 [A] corrente...

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S series catalog-3

Motori asincroni trifase (progettati per l'impiego con riduttori) per vie a rulli Asynchronous three-phase roller table motors (designed for gear reducer applications) for roller tables Grand. - Sizes 112 ... 250 Motoriduttori coassiali Coaxial gearmotors Motoriduttori ad assi paralleli Parallel shaft gearmotors

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S series catalog-4

• Motori per vie a rulli progettati appositamente per l'impiego, in combinazione con i riduttori di Rossi, nell'industria siderurgica • Roller table motors especially designed for rolling mills in conjunction with Rossi gear reducers ➔ Elevate prestazioni e affidabilità in servizi continuativi e in condizioni di servizio estremamente gravoso ➔ High performance and reliability in long term services under heavy duty conditions • Carcassa di ghisa e costruzione particolarmente robusta sotto ogni aspetto • Cast iron housing with extra strong construction on all areas of design ➔ Massima resistenza...

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S series catalog-5

• vvolgimenti progettati A appositamente per alimentazione mediante inverter per ottenere una elevata curva di momento torcente • indings especially designed W for inverter feeding with high torque characteristic curve eccellente sincronismo anche con carichi variabili per una buona qualità del processo di laminazione ➔ ood responsivness and G correct synchronism under variable loads for good rolling quality • otori trifase in classe di M efficienza energetica IE3 • hree-phase motors with T efficiency class to IE3 nell'azionamento, riduzione dei costi di gestione, massima sostenibilità ambientale...

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S series catalog-6

NUMERO POLI: NUMBERS OF POLES: GRANDEZZA MOTORE: MOTOR SIZE: TIPO MOTORE: MOTOR TYPE: La designazione va completata con l'indicazione di potenza PN [kW], frequenza (se diversa da 50 Hz) e tipo di servizio (es.: S1, S3 25% ecc.), più eventuali esecuzioni speciali. The designation is to be completed stating power PN [kW], frequency (if different from 50 Hz) and duty service (eg.: S1, S3 25% etc.), plus non-standard designs, if any. 1) Valori validi per frequenza 50 Hz; per frequenze e tensioni speciali ved. cap 6. 2) Motore con freno; ved. cap. 6 per esecuzione speciale. 1) Values valid for 50...

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S series catalog-7

- momento torcente nominale sempre costante in tutto il campo di velocità per frequenze frequenza nominale; - elevata inerzia termica e resistenza alle sovrasollecitazioni elettriche; - lasse di efficienza premium IE3; tutti i motori del c presente catalogo sono in classe di efficienza IE3 secondo le IEC 60034-30. - onstant nominal torque throughout the speed range c for frequency rated frequency; - high thermal inertia and electrical overstress withstanding; - remium efficiency class IE3; all motors of present p catalog are in efficiency class IE3 according to IEC 60034-30. Particolarità costruttive...

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S series catalog-8

Caratteristiche valide per tensione e frequenza nominali 400 V 50 Hz, alimentazione da inverter, temperatura massima ambiente 50 °C e altitudine massima 1 000 m. Alimentazioni differenti sono possibili: ved. cap. 6. I valori effettivi possono scostarsi leggermente da quelli indicati. Data are valid for nominal voltage and frequency 400 V 50 Hz, inverter feeding, maximum ambient temperature 50 °C and maximum altitude 1 000 m. On request different electrical design: see ch. 6. Effective values may differ marginally from those indicated. 4 poli - 4 poles Motore Motor 6 poli - 6 poles Motore Motor...

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S series catalog-9

Caratteristiche valide per tensione e frequenza nominali 400 V 50 Hz, alimentazione da inverter, temperatura massima ambiente 50 °C e altitudine massima 1 000 m. Alimentazioni differenti sono possibili: ved. cap. 6. I valori effettivi possono scostarsi leggermente da quelli indicati. Data are valid for nominal voltage and frequency 400 V 50 Hz, inverter feeding, maximum ambient temperature 50 °C and maximum altitude 1 000 m. On request different electrical design: see ch. 6. Effective values may differ marginally from those indicated. Servizio - Duty S31) 75% 4 poli - 4 poles Motore Motor 6 poli...

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S series catalog-10

Caratteristiche valide per tensione e frequenza nominali 400 V 50 Hz, alimentazione da inverter, temperatura massima ambiente 50 °C e altitudine massima 1 000 m. Alimentazioni differenti sono possibili: ved. cap. 6. I valori effettivi possono scostarsi leggermente da quelli indicati. Data are valid for nominal voltage and frequency 400 V 50 Hz, inverter feeding, maximum ambient temperature 50 °C and maximum altitude 1 000 m. On request different electrical design: see ch. 5. Effective values may differ marginally from those indicated. Servizio - Duty S31) 50% 4 poli - 4 poles Motore Motor 6 poli...

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S series catalog-11

Caratteristiche valide per tensione e frequenza nominali 400 V 50 Hz, alimentazione da inverter, temperatura massima ambiente 50 °C e altitudine massima 1 000 m. Alimentazioni differenti sono possibili: ved. cap. 5. I valori effettivi possono scostarsi leggermente da quelli indicati. Data are valid for nominal voltage and frequency 400 V 50 Hz, inverter feeding, maximum ambient temperature 50 °C and maximum altitude 1 000 m. On request different electrical design: see ch. 6. Effective values may differ marginally from those indicated. Servizio - Duty S31) 25% 4 poli - 4 poles Motore Motor 6 poli...

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S series catalog-12

4 - Dimensioni Grandezza: Size:

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S series catalog-13

4 - Dimensioni Grandezza: Size:

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.