MTNMTF 4118 Series Motors Power Nextgen Lifting Machinery

The MTN 411-8 and MTF 411-8 series represent industrial-grade asynchronous motors specifically engineered for demanding crane operations. These three-phase motors feature advanced wound-rotor technology, delivering robust power with 15 kW rated capacity. Operating under S3 duty cycle with 40% intermittent operation rating, they maintain stable performance during high-intensity lifting operations.

With 750 RPM shaft speed and IP54 protection against dust and water ingress, these motors adapt to challenging environments. Manufactured to ГОСТ Р52776 standards, they operate reliably across extreme temperatures from -40°C to +50°C.

The 411 series offers multiple insulation configurations:

• MTN 411-8 : H-class insulation (180°C tolerance) for heavy-duty applications
• MTF 411-8 : F-class insulation (150°C tolerance) for standard crane operations
• MTV 411-8 : B-class insulation (130°C tolerance) for moderate conditions

These motors power critical lifting equipment including:

• Overhead and gantry crane gearboxes
• Electric hoists and trolley drives
• Winches and metallurgical machinery
• Tower cranes and various lifting mechanisms

The three-phase wound rotor design provides:

• Exceptional short-term overload capacity
• High starting torque for heavy loads
• Rapid acceleration response
• Precise speed and torque control through external rheostats

Production follows ТУ 16-89 ИРАК.526122.043 ТУ specifications with climate variants including У1, У2, Т1, Т2, and УХЛ. Minimum insulation resistance measures 10 MΩ, ensuring electrical safety and reliability.

Compatible models include 5МТН, 5MTF, 4МТН, 4MTF, and МТКН 411-8 for short-circuit rotor applications.

Russian manufacturers including ОАО «НПО Сибэлектромотор», АО «Бавленский электромеханический завод», and ОАО «Ржевский краностроительный завод» lead production of these specialized motors, offering power ranges from 1.4 kW to 160 kW.