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Κινητήρες Συνεχούς Ρεύματος

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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Valiadis-KDC

Σειρά KDC

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

RESOURCES

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Κινητήρες δακτυλιοφόρου δρομέα

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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AK

Σειρά ΑΚ

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

RESOURCES

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Κινητήρες Βραχυκυκλωμένου Δρομέα

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.

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K

Σειρά Κ

ΤΕΧΝΙΚΑ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ

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

ΣΧΕΤΙΚΑ

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Σειρά ΚΔ

ΑΣΥΓΧΡΟΝΟΙ ΚΙΝΗΤΗΡΕΣ
ΔΑΚΤΥΛΙΟΦΟΡΟΥ ΔΡΟΜΕΑ

ΑΣΥΓΧΡΟΝΟΙ ΚΙΝΗΤΗΡΕΣ
ΔΑΚΤΥΛΙΟΦΟΡΟΥ ΔΡΟΜΕΑ

ΤΕΧΝΙΚΑ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ

Τριφασικοί ασύγχρονοι ηλεκτροκινητήρες δακτυλιοφόρου δρομέα (H 132-450)

IEC 132-450   380-420 / 50Hz

Εφαρμογές

  • Αντλίες
  • Ανεμιστήρες
  • Ταινιομεταφορείς
  • Αεροσυμπιεστές
  • Μειωτήρες
  • Εργοστάσια επεξεργασίας μαρμάρου
  • Χαλυβουργία

Βασικά χαρακτηριστικά

  • Κέλυφος κινητήρα βαρέος τύπου από χυτοσίδηρο (βάση ενσωματωμένη στο κέλυφος)
  • Βαθμός προστασίας IP55
  • Θάλαμος δακτυλίων και ψηκτρών διαχωρισμένος από τον στάτη και τον δρομέα, πίσω από το έδρανο του κινούμενου άκρου
  • Κλάση μόνωσης F, αύξηση θερμοκρασίας 80°C
  • Στάνταρ προστασία της περιέλιξης με PTC (1 ανά φάση, σύνδεση εν σειρά)
  • Στάνταρ τσιμούχες στις πλευρές DE και NDE
  • Ακροκιβώτιο στο πάνω μέρος (με δυνατότητα στροφής κατά 180°)
  • Ρουλεμάν SKF ή NSK
  • Αναλιπαινόμενα έδρανα
  • Μπλε χρώμα, RAL 5010

    Προαιρετικά χαρακτηριστικά

    • Ειδικές τάσεις και συχνότητα
    • Κλάση μόνωσης H
    • Βαθμός προστασίας IP56 / IP65
    • Ακροκιβώτιο στα αριστερά ή δεξιά
    • Αισθητήριο PT100 στην περιέλιξη και τα έδρανα
    • Κινητήρες με μικρό μήκος άξονα (μη τυποποιημένοι κατά IEC)
    • Θερμαντήρες για αποφυγή συμπυκνωμάτων
    • Έδρανα στο κινητήριο άκρο
    • Ακροκιβώτιο εμποτισμένο με εποξειδική ρητίνη
    • Περιέλιξη εμποτισμένη με εποξειδική ρητίνη
    • Ακροκιβώτιο εμποτισμένο με σιλικόνη
    • Καλωδίωση (με ακροκιβώτιο ή απευθείας σύνδεση)

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      DOWNLOAD MANUAL

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      DIMENSION SHEET

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      DOWNLOAD CERTIFICATION

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      Σειρά KZ – KZR

      TECHNICAL DATA

      Three Phase Crane Motors

      IEC 132-450   380-420 / 50Hz

      Applications

      • Pumps
      • Blowers
      • Conveyor
      • Compressors
      • Gears
      • Marble factories
      • Steel Industry

      Standard features

      • Heavy duty design cast iron housing motor (feet integral with the casing)
      • IP55 protection degree
      • Compartment of slip rings and brushes separated from stator and rotor, behind the non-drive end bearing
      • Insulation class F, temperature rise 80°C
      • Standard PTC protection in the winding (1 per phase series connected)
      • Standard oil seals in both DE and NDE sides
      • Top mounted terminal box (with the possibility of rotation by 180°)
      • SKF or NSK bearings
      • Regreasable bearings
      • RAL 5010, blue color

        Optional features

        • Special voltages and frequency
        • Class H insulation
        • IP56/IP65 protection
        • Right or Left-hand side terminal box
        • PT100 in the winding and bearings
        • Frame reduced motors (non-IEC)
        • Anticondensation heaters
        • Roller bearings on drive end
        • Epoxy raisin encapsulated terminal box
        • Epoxy raisin encapsulated winding
        • Silicon encapsulated terminal box
        • Cable execution (with terminal box or directly connected)

        DOWNLOAD BROCHURE

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        DOWNLOAD MANUAL

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        DIMENSION SHEET

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        DOWNLOAD CERTIFICATION

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        VIEW ALL MOTORS IN FAMILY

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