What is the difference between slip-ring and squirrel-cage crane motors?

Slip-ring motors (MTF, MTH) provide smooth starting and speed regulation for heavy loads. Squirrel-cage motors (MTKF, MTKH) are more durable and simpler, ideal for mechanisms not requiring complex speed control.

Which duty cycles are MTH and MTF series designed for?

They are designed for the S3 intermittent periodic duty cycle, featuring Class F or H insulation to handle high temperatures and frequent reversals in metallurgical plants.

What configurations of crane motors does Ekvives supply?

Ekvives offers motors with conical or cylindrical shafts, foot-mounted designs, and both wound (slip-ring) or squirrel-cage rotors for various industrial cranes.

Does Ekvives provide a warranty for crane-duty motors?

Yes, we provide an official 12-month warranty, technical consulting, and expedited delivery for all MTH and MTF series motors.

Crane-metalurgical electric motors

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Краново-металургійні електродвигуни MTH з фазним ротором

Краново-металургійні електродвигуни MTKH з короткозамкненим ротором

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МТН MTF 280L8 crane electric motor 90 KW 750 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 90; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 750; Mounting version: ІМ 1003; Power factor: 0,82

DescriptionMTN MTF 280L8 is a high-power and reliable crane motor. It is equipped with a phase rotor..

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МТН MTF 280M6 crane electric motor 90 KW 1000 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 90; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 1000; Mounting version: ІМ 1003; Power factor: 0,83

DescriptionProduct description for MTF 280M6 crane motor with phase rotor IM 1003.FeaturesMotor type..

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МТН MTF 012-6 crane electric motor 2.2 kW 1000 pm with phase rotor ІМ 1001

Electric Motor type: сrane and metallurgical; Power, kW: 2,2; Phase: 3; Voltage, V: 380 (220, 660); Shaft diameter, mm: 28; Rotation speed, rpm: 1000; Mounting version: ІМ 1001

DescriptionProduct description for MTF 012-6 crane motor with phase rotor IM 1001Features Motor typ..

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MTKN MTKF 280L10 crane electric motor 75 kW 600 rpm with short-circuited rotor ІМ 1003

Electric Motor type: Crane and metallurgical; Power, kW: 75; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 600; Mounting version: ІМ 1003; Power factor: 0,77

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МТН MTF 280L10 crane electric motor 75 KW 600 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 75; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 600 ; Mounting version: ІМ 1003; Power factor: 0,76

DescriptionThe MTF 280L10 crane electric motor is a powerful and reliable solution for use in cranes..

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МТН MTF 280M8 crane electric motor 75 KW 750 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 75; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 750 ; Mounting version: ІМ 1003; Power factor: 0,84

DescriptionMTN MTF 280M8 is a crane motor with a phase rotor IM 1003. It has a power of 75 kW and a ..

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МТН MTF 280S6 crane electric motor 75 KW 1000 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 75; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 1000 ; Mounting version: ІМ 1003; Power factor: 0,83

DescriptionMTN MTF 280S6 crane motor is a powerful and reliable equipment for use in crane systems. ..

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FAQ: MTH & MTF Crane Duty Motors

Motors with a slip-ring rotor (MTF, MTH series) are designed for smooth speed control and high starting torque, which is essential for lifting heavy loads. Motors with a squirrel-cage rotor (MTKF, MTKH) are simpler in construction, more reliable for maintenance-free operation, and used where step-less start-up regulation is not required.

Crane and metallurgical motors are specifically engineered for the intermittent periodic duty cycle (S3) with frequent starts, braking, and reversals. They feature high-class thermal insulation (Class F or H), allowing them to withstand significant overloads in harsh metallurgical shop environments.

Our catalog includes various power ratings and mounting configurations: foot-mounted (IM1001) with single or double shaft extensions (conical or cylindrical). We offer both slip-ring models for complex control systems and squirrel-cage versions for standard crane mechanisms.

Yes, all MTH and MTF metallurgical motors come with an official 12-month warranty. Ekvives performs a pre-sale inspection of every unit, provides full technical support, and ensures fast logistics across Ukraine and international regions.

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Crane-metalurgical electric motors

FAQ: MTH & MTF Crane Duty Motors