Stator and Rotor Tunnel Furnace

The Stator and Rotor Tunnel Furnace is a continuous industrial heating oven specially designed for the heating processes of motor stators and rotors. The equipment adopts a tunnel structure and uses chain or mesh belt conveying systems to transport stators and rotors continuously through multiple heating zones.It is widely used for motor stator varnish baking, curing, preheating, and heat-shrink fitting processes, featuring high automation, precise temperature control, and stable continuous operation.

Product Applications

Motor Stator Curing

Used for drying and curing insulating varnish after stator winding impregnation to improve insulation performance and product reliability.

Rotor Heat Shrink Assembly

Heating is used to expand the rotor core or bearing components, facilitating thermal fitting and assembly.

Stress Relief Treatment

Used for stress-relief annealing of stator and rotor cores after stamping, welding, or machining processes.

Moisture Removal

Used for preheating and moisture removal of stators and rotors before varnish impregnation or insulation treatment.

Technical Specifications

Product Features

High Efficiency and Energy Saving

The equipment adopts a high-quality thermal insulation structure and thermal barrier design, combined with a hot air circulation system to significantly reduce heat loss and improve energy efficiency.

Precise Temperature Control

Equipped with intelligent microcomputer PID temperature control and independent multi-zone temperature regulation, ensuring accurate heating curves and consistent curing quality.

Stable Operation

The frequency-controlled conveying system operates smoothly with low vibration, preventing stators and rotors from shifting or being damaged during the heating process.

Intelligent Safety Protection

Equipped with over-temperature alarm, conveyor jam protection, exhaust and explosion prevention systems, and PLC integrated one-touch control for safe and automated operation.

FAQ 

Q1: How should the heating method of the stator and rotor tunnel furnace be selected?

A:Electric heating provides the highest temperature control accuracy and clean operation. Infrared heating offers strong penetration capability and faster heating speed. Gas heating is suitable for large-scale production with high energy consumption requirements, helping reduce operating costs.

Q2: How does the furnace ensure uniform heating during stator varnish curing?

A:The equipment adopts a powerful forced convection circulation system, allowing hot air to penetrate stator windings from multiple directions and ensuring minimal temperature differences between internal and external areas.

Q3: How are the exhaust gases generated during the heating process handled?

A:The equipment is equipped with an independent exhaust system and adjustable valves. Volatile gases can be collected and discharged through the workshop exhaust pipeline or connected to VOCs treatment equipment for environmental compliance.

Q4: Can the conveyor speed and temperature be adjusted for different stator and rotor models?

A:Yes. Through the PLC touch-screen control system, multiple process recipes can be preset. Operators can quickly adjust the temperature settings of each heating zone and conveyor speed according to different product requirements.

Q5: What maintenance should be performed during daily operation?

A:Regular maintenance includes checking the lubrication condition of transmission chains, cleaning impurities inside the furnace, and inspecting heating tubes and circulation fans for abnormal noise or damage.