Coil Curing Oven

The Coil Curing Oven is a professional industrial curing equipment for insulation treatment of wound electrical components, including transformer coils, motor coils and reactor coils. After coil winding, the Coil Curing Oven performs varnish impregnation and high-temperature baking to form solid insulation bonding between coil turns and between coils and iron cores. This process greatly enhances the electrical insulation performance and mechanical structural stability of finished coil products. Equipped with reliable electric heating, the Coil Curing Oven features stable and adjustable temperature. Its chamber size and heating power can be customized according to customers' coil specifications and production capacity to fit diverse production demands.

The Coil Curing Oven adopts high-quality SUS304 stainless steel finned heating tubes installed inside side air ducts, delivering high temperature resistance, corrosion resistance and long service life. Its air circulation system consists of a top circulating fan, side air ducts and bottom return air channels, forming a fully enclosed and efficient hot air circulation loop. The Coil Curing Oven is fitted with a dual temperature control system composed of a main controller and an independent monitoring instrument, realizing precise temperature regulation and reliable over-temperature dual protection. It supports optional truck-type, suspension-type and tray-type loading methods to suit different workpiece processing requirements. Featuring compact and reasonable layout, theCoil Curing Oven has low surface temperature rise and high operational safety.

The Coil Curing Oven realizes uniform insulation curing through electric heating and forced hot air circulation. During operation, the SUS304 finned heating tubes generate heat, and the top fan drives hot air downward through side ducts into the curing chamber. After heating the coil workpieces evenly, hot air returns upward via the bottom channel, forming a continuous and stable circulating airflow. This structure ensures uniform internal temperature and consistent curing quality. The Coil Curing Oven adopts PID intelligent constant temperature regulation. The independent monitor is set 5°C–10°C higher than the main temperature setpoint. Once over-temperature occurs, the system automatically cuts off heating and triggers audible and visual alarms to guarantee safe and stable production.

The Coil Curing Oven features high precision, high efficiency and high safety, with core technical parameters as follows:

Operating temperature range: ambient +10°C to 200°C;

Temperature uniformity: ±1°C;

Temperature control accuracy: ±0.1°C;

Heating method: SUS304 stainless steel finned tube electric heating;

Heating power: 12kW–120kW (configured by chamber volume);

No-load heating rate: 4–6°C/min; Air circulation mode: top air supply, side inlet, bottom return;

Control system: PID precise regulation, main controller + independent monitor;

Over-temperature protection: automatic heating cut-off and sound-light alarm;

Loading mode: truck / suspension / tray optional;

Power supply: 380V–480V, 3-phase, 50/60Hz (customizable);

Surface temperature rise: ≤ ambient +15°C.

With stable curing performance and strong compatibility, the Coil Curing Oven is widely used in the production lines of various winding electrical components. It is mainly applied for insulation curing of power transformers, distribution transformers, reactors and instrument transformers. As core supporting equipment for winding part manufacturing, the Coil Curing Oven is suitable for mass production of various coil products, effectively improving product insulation performance and service life, and is widely adopted in the electrical equipment manufacturing industry.

Before operating the Coil Curing Oven, inspect the heating tubes, circulating fan and temperature control system to ensure no damage or abnormal operation. Do not overload the chamber or place wet, unvarnished workpieces in excessive quantities, which may affect curing uniformity and cause safety hazards. During the heating and curing process, keep the equipment door tightly closed to maintain stable internal temperature and avoid heat loss. It is strictly prohibited to disassemble the control system and heating components without authorization. When an over-temperature alarm is triggered, cut off the power in time, check and eliminate the fault before restarting operation. After long-term use, regularly clean the air ducts and chamber interior to ensure smooth hot air circulation and stable curing effect. The equipment power supply must match the rated voltage to avoid circuit failure and component damage.

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