Crane Duty Motors – Heavy-Duty AC Motors for Lifting & Material Handling
Crane Duty Motors are specially designed AC motors built to handle intermittent duty cycles, frequent starts/stops, and high starting torque demands in lifting and material handling applications. These motors are engineered for robust performance, delivering reliable operation under varying load conditions found in cranes, hoists, winches, and industrial lifting systems. With reinforced mechanical strength, high thermal capacity, and durable insulation, Crane Duty Motors ensure superior performance and long service life in harsh industrial environments.
- Description
Description
Product Range / Variants
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Squirrel Cage Crane Duty Motors
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Slip Ring Crane Duty Motors
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Brake Motors for Cranes & Hoists
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TEFC (Totally Enclosed Fan Cooled) Crane Duty Motors
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Flame-Proof Crane Duty Motors
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Foot-Mounted and Flange-Mounted Models
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High-Torque, Low-Speed Crane Duty Motors
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S4, S5, S6 Duty Class Motors
Key Features
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High starting torque for lifting heavy loads
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Designed for intermittent and frequent start-stop duty
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Strong mechanical construction for rugged use
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Long thermal life with Class F/H insulation
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Low vibration and noise levels
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Suitable for reversing and plugging operations
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High overload capacity
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Reliable braking options available
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Heavy-duty bearings for longer service life
Technical Specifications (Typical / Estimated)
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Voltage: 415V (LV) / 3.3kV (MV)
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Frequency: 50 Hz / 60 Hz
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Power Range: 0.75 kW to 200 kW
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Duty Cycle: S3, S4, S5, S6 (Crane Duty Standards)
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Speed: 600 RPM / 750 RPM / 1000 RPM / 1500 RPM
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Insulation Class: F / H
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Protection Class: IP55 / IP65
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Cooling Type: TEFC / IC411
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Mounting: Foot (B3), Flange (B5), Foot-Flange (B35)
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Rotor Type: Squirrel Cage or Wound Rotor
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Brake Option: AC/DC fail-safe brake (optional)
Applications
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EOT cranes and gantry cranes
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Hoists and winches
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Lift systems and elevators
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Material handling equipment
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Rolling mills and steel plants
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Mining and construction machinery
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Port handling cranes
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Conveyor drives with heavy loads
Benefits
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High reliability under tough material-handling loads
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Able to withstand frequent starts, stops, and reversals
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Long motor life due to rugged construction
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Maintains torque even at low speeds
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Reduced downtime and maintenance
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Ideal for heavy-duty and industrial lifting sectors
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Energy-efficient performance with minimal heat buildup
Material Grades / Build Options
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Stator: High-quality silicon steel laminations
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Rotor: Cast aluminum or copper squirrel cage / wound rotor
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Housing: Cast iron robust body
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Windings: Copper conductors with Class F/H insulation
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Bearings: Heavy-duty roller or deep-groove bearings
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Shaft: High-strength alloy steel
WE OFFER
Adkrons Exims – Where Innovation Meets Industrial Strength
Adkrons Exims is a leading supplier of world-class industrial equipment, safety solutions, electrical components, and engineered fabrication products. Our focus remains on delivering precision, durability, and consistent performance to help industries operate safely and efficiently. From workshops to large manufacturing units, we are committed to providing reliable products and unmatched customer support.
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