Magnetic inductor

currentlow-lossinductive

Roller inductors for heating rolls provide precise temperature control and even heat distribution for heated rotating rolls across a wide range of industrial applications. Kendrion's modular inductors are assembled as segmented units on a shaft (heating mandrel) which are inserted as a stationary unit into the rotating heating roller.

Applications

• Plastics and rubber industry: optimal heating and shaping of materials.
• Textile industry: efficient drying, finishing and coating processes.
• Paper and film processing: reliable drying, forming and laminating.
• Metalworking: high-quality coating and lamination processes.
• Food industry: precise temperature control during packaging production.
• Also used in base cylinders, embossing cylinders, current conductive rolls, smoothing rolls, chill roll cylinders, laminating rolls and calender rolls.

Advantages

• Maximum energy efficiency through direct, low-loss energy transfer.
• Fast and precise temperature control without delay.
• Maintenance-free and low-wear (no slip rings or seals).
• Long service life thanks to contactless technology.
• Flexible temperature range suitable for varied production processes.
• Eliminates leakage risks and complex installations associated with liquid media (thermal oil, water, steam).

Integration & operation

• Modular design allows individually controllable heating zones (segments mounted on a shaft form a heating mandrel).
• Fieldbus-compatible induction generators enable easy machine integration (Profinet®, CANopen, EtherCAT®).
• On request, heating rolls can be supplied as autonomous units with integrated control and operating display.

Characteristics / technical specifications

• Inner diameter range: 60 mm to 480 mm.
• Heated section length: up to 250 mm.
• Temperature range: up to 300 °C.
• Modular segmented inductor design for multiple controllable heating zones.
• Fieldbus compatibility: Profinet®, CANopen, EtherCAT®.