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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ІМ 1001 ІМ 1003

ІМ1001

1001

Краново-металургійні електродвигуни MTH з фазним ротором

Краново-металургійні електродвигуни MTKH з короткозамкненим ротором

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MTKN MTKF 225L6 crane electric motor 55 kW 1000 rpm with short-circuited rotor ІМ 1003

Electric Motor type: Crane and metallurgical; Power, kW: 55; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 1000; Mounting version: ІМ 1003; Power factor: 0,84

Price:

Made to order

МТН MTF 225L6 crane electric motor 55 kW 1000 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 55; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 1000; Mounting version: ІМ 1003; Power factor: 0,88

DescriptionMTN MTF 225L6 crane electric motor is reliable and efficient equipment for use in crane p..

Price:

67 500.00 ₴

99 574.00 ₴

МТН MTF 280S8 crane electric motor 55 KW 750 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 55; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 750; Mounting version: ІМ 1003; Power factor: 0,80

DescriptionThe MTN MTF 280S8 crane electric motor with phase rotor IM 1003 is a powerful and reliabl..

Price:

Made to order

МТН MTF 400S8 crane electric motor 132 kW 750 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 132; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 750 ; Mounting version: ІМ 1003; Power factor: 0,81

DescriptionMTN MTF 400S8 is a crane motor with a phase rotor IM 1003. It has a power of 132 kW and a..

Price:

Made to order

МТН MTF 400M10 crane electric motor 132 kW 600 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 132; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 600; Mounting version: ІМ 1003; Power factor: 0,79

DescriptionMTN MTF 400M10 is a crane motor with a phase rotor IM 1003, designed for use in crane and..

Price:

Made to order

МТН MTF 712-10 crane electric motor 132 kW 600 rpm with phase rotor ІМ 1003

Electric Motor type: сrane and metallurgical; Power, kW: 132; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 600 ; Mounting version: ІМ 1003; Power factor: 0,79

DescriptionThe MTF 712-10 crane electric motor is a powerful electric motor designed specifically fo..

Price:

Made to order

MTKN MTKF 311-6 crane electric motor 11 kW 1000 rpm with short-circuited rotor ІМ 1001

Electric Motor type: Crane and metallurgical; Power, kW: 11; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 1000; Mounting version: ІМ 1001; Power factor: 0,84

Price:

Made to order

МТН MTF 311-6 crane electric motor 11 kW 1000 rpm with phase rotor ІМ 1001

Electric Motor type: сrane and metallurgical; Power, kW: 11; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 1000; Mounting version: ІМ 1001; Power factor: 0,78

DescriptionMTN MTF 311-6 is a crane motor with a phase rotor IM 1001, designed for use in industrial..

Price:

Made to order

МТН MTF 312-8 crane electric motor 11 kW 750 rpm with phase rotor ІМ 1001

Electric Motor type: сrane and metallurgical; Power, kW: 11; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 750; Mounting version: ІМ 1001; Power factor: 0,77

DescriptionMTN MTF 312-8 crane electric motor is an excellent choice for crane and metallurgical ind..

Price:

Made to order

MTKN MTKF 312-8 crane electric motor 11 kW 750 rpm with short-circuited rotor ІМ 1001

Electric Motor type: crane and metallurgical; Power, kW: 11; Phase: 3; Voltage, V: 380 (220, 660); Rotation speed, rpm: 750; Mounting version: ІМ 1001; Power factor: 0,79

Price:

Made to order

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