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Valiadis-KDC

KDC Series

Written by Orestis Kyrtsis on . Posted in DC MOTORS, ELECTRIC MOTORS.

DC
MOTORS

DC
MOTORS

TECHNICAL DATA

IEC Motors – Frame Sizes 132 to 710

Main Applications

  • Metallurgy
  • Rubber machinery
  • Plastic machinery
  • Mining
  • Gearboxes
  • Marble factories
  • Steel industry
  • Hoists and cranes
  • Traction vehicles
  • Presses
  • Paper machines
  • Circle cutting machines
  • Chemical and petrochemical industries
  • Furnaces, exhaust fans, separators, and conveyor belts for the cement industry and other heavy-duty applications

Standard Features

  • Heavy-duty industrial design for demanding applications
  • Protection degree: IP23 up to IP55
  • Cooling methods: IC06, IC17, IC37, or ICW37A86
  • Rotor and stator windings made with copper wire, enamel-coated with Class H varnish, using an insulation and impregnation system Class F or H
  • Electrographite brushes for optimal electrical contact
  • Copper commutators for durability and performance
  • Insulation class F, with temperature rise limited to 80°C
  • Top-mounted terminal box, rotatable 180° for flexible cable management
  • Premium bearings: SKF or NSK
  • Regreasable bearings for extended lifespan
  • Standard color: RAL 5010 (Blue)

Optional Features

  • Special dimensions for customized installations
  • Special voltages upon request
  • Tacho generator for speed feedback and control
  • Insulation class H for higher thermal resistance
  • Higher protection degrees: IP56 / IP65
  • Right or left-hand side terminal box positioning
  • PT100 sensors in windings and/or bearings for precise thermal monitoring
  • Anti-condensation heaters to prevent moisture buildup
  • Roller bearings on drive end for high radial load applications
  • Epoxy resin encapsulated terminal box for harsh environments
  • Epoxy resin encapsulated windings for enhanced insulation
  • Silicone encapsulated terminal box for additional protection

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AK

AK Series

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

TECHNICAL DATA

Aluminum Motors

Three-Phase IEC Motors – Frame Sizes IEC 56 to IEC 160

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

  • Fans

  • Pumps

  • Gearboxes

  • Compressors

  • Textile machinery

  • Food industry

Standard Features

  • Industrial series aluminium housing motors, lightweight and robust

  • Protection degree: IP55

  • Insulation class F, with temperature rise limited to 80°C

  • Removable feet, allowing terminal box positioning on right or left-hand side

  • Terminal box rotatable 180° for flexible cable entry

  • SKF or NSK bearings for high reliability

  • Cast iron endshields for frame sizes 80–160

  • Standard color: RAL 5010 (Blue)

Optional Features

  • Special voltages and frequencies on request

  • Insulation class H for higher thermal performance

  • Brake kits available for all motor sizes

  • Forced cooling for constant torque operation with frequency inverters

  • Higher protection classes: IP56 / IP65

  • Cast iron flanges and endshields for added robustness

  • PTC or PT100 sensors in windings for thermal monitoring

  • Reduced frame motors (non-IEC) for compact designs

  • Anti-condensation heaters to prevent moisture buildup

  • Roller bearings on drive end for high radial loads

  • Double shaft extensions for dual-output needs

  • Custom cable executions, with terminal box or direct cable connection

  • Epoxy resin encapsulated terminal box for harsh environments

  • Epoxy resin encapsulated windings for enhanced insulation

  • Silicone encapsulated terminal box for extra protection

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kzr

KZ – KZR Series

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

TECHNICAL DATA

Introduction

These three-phase metallurgical industrial and crane motors, available with wound or squirrel cage rotors, are specifically designed for metallurgical cranes and similar heavy-duty machinery. Engineered with high overload capacity and exceptional mechanical strength, they are ideal for short duty cycles, intermittent periodic operations, and equipment that requires frequent starting, braking, or is exposed to vibration and shock.

Key Characteristics

  • Power output and mounting dimensions comply with IEC 72 standards
  • Suitable for operation at altitudes up to 1,000 m
  • Available in two insulation classes:
    • Class F: for ambient temperatures up to 40°C
    • Class H: for metallurgical industrial environments, suitable for temperatures up to 60°C
      (Note: Both classes share the same technical performance data)
  • Enclosure protection degrees:
    • IP44 for standard environments
    • IP55 for harsh metallurgical industrial conditions

Rated Voltage and Frequency

  • 380 V / 50 Hz

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300planetary

300

Written by Orestis Kyrtsis on . Posted in ELECTRIC MOTORS, GEAR MOTORS, SPECIAL MOTORS.

GEAR
MOTORS

GEAR
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

The powerful solution to all heavy duty drive problems

Compact, and yet extremely powerful, are the units of the 300 series. Their planetary drive train makes them the ideal choice for all the severe duty applications where shock loadings and impacts are more the rule than the exception. The product configuration is highly versatile, due to several options as far as the mounting, the gear layout, the output shaft and the motor interface. All the features are available for each of the 18 finely spaced frame sizes, spanning over the 1,000 – 1,400,000 Nm torque range. Finding the perfect match to any drive problem is therefore more than a wish, it is something users can safely rely on – always.

Torque Range

1,000 – 500,000 Nm 

Transmissible Mechanical Power

to 450 kW

Reduction Ratios Range

1:3.4 to 5,000

Gear Unit Version

In line
Right angle (with bevel gear pair Gleason)

Output Configuration

Foot and flange mounted
Output shaft: solid with key, splined, splined hollow hollow shaft with shrink disc

Gear Unit Input Configurations

IEC-normalized Motor Adaptors
Solid Input Shaft

Applicable AC motors

Compact motors and brake motors M series
IEC motors and brake motors BN series
Single and dual speed motors

Main Brake Motor Features

DC and AC brake
Fast Braking and/or brake releasing through
SB, NBR, SBR optional electronic devices

Type Torque Nm
300 1,000
301 1,750
303 2,500
305 5,000
306 8,500
307 12,500
309 18,500
310 25,000
311 35,000
313 50,000
315 80,000
316 105,000
317 150,000
318 200,000
319 300,000
321 450,000

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len-lex

LEN-LEX Series

Written by Orestis Kyrtsis on . Posted in ELECTRIC MOTORS, EXPLOSION – PROOF MOTORS, SPECIAL MOTORS.

EXPLOSION – PROOF
MOTORS

EXPLOSION – PROOF
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

LEX series motors:

Ex nA II T3 IP65 II 3G — Zone 2

Ex tD A21 IP65 T135°C II 2D — Zone 21

LEN series motors:

Ex tD A22 IP55 T155°C II 3D — Zone 22

INTRODUCTION

The European Directive 94/9/EC (ATEX) defines the following hazardous areas:

  • Gas atmospheres: Zone 0, Zone 1, and Zone 2
  • Dust atmospheres: Zone 20, Zone 21, and Zone 22

Our LEX and LEN series motors are certified and qualified for installation in these hazardous environments as follows:

LEX series

  • Type of enclosure:
    • Ex nA II T3 IP65 II 3G
    • Ex tD A21 IP65 T135°C II 2D
  • Areas of use: Zone 2, Zone 21, Zone 22
  • Certification: No. ICEPI 07 ATEX 03C009
  • Certifying authority: ICEPI Institute, Piacenza, Italy — Notified Body No. 0066

LEN series

  • Type of enclosure:
    • Ex tD A22 IP55 T155°C II 3D
  • Area of use: Zone 22
  • Certification: Self-certified according to ATEX standards

GENERAL CHARACTERISTICS

The LEX and LEN series motors are designed and manufactured to comply with ATEX requirements for hazardous environments, ensuring maximum safety and reliability under specified service conditions.

CONSTRUCTION CHARACTERISTICS

All LEX and LEN series motors feature:

  • Housing: Cast iron
  • End shields: Cast iron
  • Terminal box: Cast iron, rotatable by 90°
  • Fan:
    • Polyethylene for frame sizes 80 to 280
    • Aluminum for frame sizes 315 and 355
  • Fan cover: Pressed steel for all sizes

STANDARD SPECIFICATIONS

  • LEX series motors: IP65 mechanical degree of protection
  • LEN series motors: IP55 mechanical degree of protection

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Valiadis-KΔ-2

ΚΔ Series

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


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K

K Series

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

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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.

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