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ΚΔ Series

Written by Orestis Kyrtsis on . Posted in ASYNCHRONOUS SLIP RING MOTORS, ELECTRIC MOTORS.

ASYNCHRONOUS
SLIP RING MOTORS

ASYNCHRONOUS
SLIP RING MOTORS

TECHNICAL DATA

IEC 132-450   380-420 / 50Hz

IEC Motors – Frame Sizes 132 to 450

Voltage and Frequency

  • 380–420 V, 50 Hz

Main Applications

  • Pumps
  • Blowers
  • Conveyors
  • Compressors
  • Gearboxes
  • Marble factories
  • Steel industry

Standard Features

  • Heavy-duty cast iron housing, with feet integral to the casing for added robustness
  • Protection degree: IP55
  • Slip ring and brush compartment isolated from stator and rotor, located behind the non-drive end (NDE) bearing
  • Insulation class F, with temperature rise limited to 80°C
  • Standard PTC thermistors in windings (one per phase, series connected)
  • Oil seals on both drive end (DE) and non-drive end (NDE)
  • Top-mounted terminal box, rotatable 180° for flexible installation
  • Premium bearings: SKF or NSK
  • Regreasable bearings for extended service life
  • Standard color: RAL 5010 (Blue)

Optional Features

  • Special voltages and frequencies available on request
  • Insulation class H for higher thermal tolerance
  • Higher protection degrees: IP56 / IP65
  • Terminal box positioning: right- or left-hand side
  • PT100 sensors in windings and/or bearings for advanced thermal monitoring
  • Reduced frame motors (non-IEC) for compact applications
  • Anti-condensation heaters to prevent moisture buildup
  • Roller bearings on drive end for high radial loads
  • Epoxy resin encapsulated terminal box for harsh environments
  • Epoxy resin encapsulated windings for superior insulation
  • Silicone encapsulated terminal box for enhanced protection
  • Custom cable executions, either via terminal box or direct cable connection

RESOURCES

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BRAKE MOTORS

Written by Orestis Kyrtsis on . Posted in BRAKE MOTORS, SPECIAL MOTORS.

BRAKE
MOTORS

SPECIAL
MOTORS

Electric Motors with Brake

Brakes are mechanical devices or systems used to decelerate or halt the rotation of a motor’s shaft or the load it drives. They function by generating friction or applying an opposing force to counter the rotational motion produced by the motor.

Brakes are indispensable components in numerous motor-driven systems, offering control and safety by enabling operators to initiate, halt, and regulate the speed of machinery as required. The selection of brakes depends on various factors, including application requirements, motor size and type, and desired braking performance.

Valiadis SA maintains a close partnership with Tempority SRL, a renowned company in Italy and internationally recognized as a leader in the production of brakes for power transmission applications in both civil and industrial sectors. Our collaboration is built on flexibility, comprehensive product knowledge, and an experienced and proficient team capable of delivering the most technologically advanced solutions. This enables us to offer a wide range of products that cater to market needs while providing customized solutions when required.


RESOURCES

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Brochures
Manuals
Technical Library

OFFER REQUEST

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Fill in the motor multiple dimension sheet, and we shall reply with our offer.

CERTIFICATIONS

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Quality control and certifications.

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K Series

Written by Orestis Kyrtsis on . Posted in ASYNCHRONOUS SQUIRREL CAGE MOTORS, ELECTRIC MOTORS.

ASYNCHRONOUS
SQUIRREL CAGE MOTORS

ASYNCHRONOUS
SQUIRREL CAGE MOTORS

TECHNICAL DATA

Voltage Range

  • Up to 3 kW (4 HP):
    380–420 V / 220–240 V (Y/Δ) – 50 Hz

  • From 4 kW (5.5 HP) and above:
    660–725 V / 380–420 V (Y/Δ) – 50 Hz

Main Applications

  • Pumps
  • Blowers
  • Conveyors
  • Textile machinery
  • Compressors
  • Marine duty
  • Gearboxes

Standard Features

  • Heavy-duty cast iron housing, with integral feet for maximum structural strength
  • Protection degree: IP55
  • Insulation class F, with temperature rise limited to 80°C
  • PTC thermistors in windings (one per phase, series connected) for thermal protection
  • Oil seals on both drive end (DE) and non-drive end (NDE)
  • Top-mounted terminal box, rotatable 180° for flexible cable entry
  • High-quality bearings: SKF or NSK
  • Regreasable bearings starting from frame size 160 and above
  • Standard color: RAL 5010 (Blue)

Optional Features

  • Special voltages and frequencies upon request
  • Insulation class H for higher thermal resistance
  • Integrated brakes up to frame size 225
  • Forced cooling for constant torque operation with frequency inverters
  • Higher protection degrees: IP56 / IP65
  • Terminal box positioning: right- or left-hand side
  • PT100 sensors in windings and/or bearings
  • Non-standard (reduced) frames for compact designs
  • Drip cover (canopy) for shaft-down mounting
  • Anti-condensation heaters
  • Encoder for speed feedback and control
  • Insulated bearings for inverter duty applications
  • Roller bearings on drive end for high radial loads
  • Double shaft extensions
  • Epoxy resin encapsulated terminal box for harsh environments
  • Epoxy resin encapsulated windings for extra insulation
  • Silicone encapsulated terminal box for additional protection
  • Custom cable executions (terminal box or direct cable connection)
  • Additional terminal boxes for specific wiring configurations

RESOURCES

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DC Motors

Written by Orestis Kyrtsis on . Posted in ELECTRIC MOTORS.

DC
MOTORS

DC
MOTORS

Reliable Solutions for DC Motor Replacement
and Heavy-Duty Applications

Although recent decades have seen a shift toward squirrel cage motors, servo motors, and permanent magnet (PM) motors, there are still countless DC motors in operation worldwide that require replacement. Our reverse engineering department brings extensive expertise in the design and manufacturing of DC motors through our KDC series. Built with a robust and durable design, KDC motors ensure extended maintenance intervals and deliver high torque, making them ideal for heavy-load applications and demanding operations that require rapid acceleration.

RESOURCES

valiadis-site-icons3-29

Brochures
Manuals
Technical Library

OFFER REQUEST

valiadis-site-icons3-29

Fill in the motor multiple dimension sheet, and we shall reply with our offer.

CERTIFICATIONS

valiadis-site-icons3-29

Quality control and certifications.

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Slip Ring Motors

Written by Orestis Kyrtsis on . Posted in ELECTRIC MOTORS.

ASYNCHRONOUS
SLIP RING MOTORS

ASYNCHRONOUS
SLIP RING MOTORS

High-Torque Motor Solutions
for Heavy-Duty Applications

Engineered for demanding applications requiring high starting torque and controlled acceleration. Featuring an externally accessible rotor with slip rings and brushes, these motors enable precise resistance adjustment during startup, optimizing torque curves and reducing mechanical stress. Ideal for heavy-duty operations such as cranes, mills, and conveyors, they deliver stable and efficient performance under variable load conditions, ensuring reliability in industrial environments where dynamic torque control is critical.

RESOURCES

valiadis-site-icons3-29

Brochures
Manuals
Technical Library

OFFER REQUEST

valiadis-site-icons3-29

Fill in the motor multiple dimension sheet, and we shall reply with our offer.

CERTIFICATIONS

valiadis-site-icons3-29

Quality control and certifications.

Continue reading

Squirrel Cage Motors

Written by Orestis Kyrtsis on . Posted in ELECTRIC MOTORS.

ASYNCHRONOUS
SQUIRREL CAGE MOTORS

ASYNCHRONOUS
SQUIRREL CAGE MOTORS

Reliable and Efficient Motor Solutions
for Industrial Applications

Designed for high-efficiency operation across a wide range of industrial applications, these motors deliver robust performance, minimal maintenance, and exceptional reliability. Their enclosed rotor design ensures enhanced durability, while optimized electromagnetic characteristics provide high power density and energy efficiency. Suitable for applications requiring continuous duty and stable performance—such as pumps, compressors, fans, and conveyors—these motors offer a cost-effective and low-maintenance solution for demanding environments.

RESOURCES

valiadis-site-icons3-29

Brochures
Manuals
Technical Library

OFFER REQUEST

valiadis-site-icons3-29

Fill in the motor multiple dimension sheet, and we shall reply with our offer.

CERTIFICATIONS

valiadis-site-icons3-29

Quality control and certifications.

Continue reading