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Industrial High & Low Voltage Foil Winding Equipment for Transformers

The foil winding machine is suitable for winding foil coils of transformers and electrical appliances. Developed by referencing US similar equipment technology and integrating the company’s transformer equipment design-manufacture experience, it uses varying-thickness copper/aluminum foil as conductor. With wide insulating strips for interlayer insulation and narrow ones for end insulation, it winds coils in one pass, while welding inner/outer leads and wrapping the outer surface, supporting qualified coil production and being essential for transformer components.

    Product Drawing

    Product Drawing

    Product Specification

    Code SH-600 SH-800 SH-1100 SH-1400
    Coil outer diameter 150-750mm

    150-850mm

    200-1000mm 200-1000mm
    Foil width 100-600mm

    150-800mm

    200-1100mm 300-1400mm
    Foil layers Single or double
    Foil thickness Copper Cu:0.3-2.5mm  Aluminium Al: 0.5-3.0mm
    Winding speed 0-30r/min

    0-30r/min

    0-20r/min 0-20r/min
    Max tension of foil 6000N 8000N 10000N 14000N
    Welding speed 0-0.5 m/min
    Correction precision ±0.5mm
    Welding method TIG or cold pressure welding

    Detail display

    1,Picture of layer insulation device 2,Picture of end insulation device 3-1,Picture of decoiler with off-set regulation system 3-2,Picture of decoiler with off-set regulation system 4-1,Picture of welding device
    4-2,Picture of welding device 5,Picture of winding device 6,Picture of scissors device 7,Picture of touch screen 8,Picture of distribution cabinet

    Structure

    Structure

    Advantages

    1. Adopting motor initiative supplying tension advanced method , stable tension , there is stable tension in foil winding, stopping and foil returning . It can avoid loosen situation when the tension lost in windin.

    2. Winding speed reducer is turbine shaft reducer , it can keep main shaft auto - locked whenever power on or power off status.

    3. Correction system using photoelectric analog sensors , it is not meeting with foil edge , both thick and thin foil are accepted.

    4. Foil tension, layer insulation tension, coil parameters , winding status and other data , all of them can be set and showed on screen, easy for operating, accurately and intuitively.

    5. Equipment is controlled by PLC and touch screen, less fault of whole machine, no friction noisy, stable working, high working efficiency.

    Application of Foil Winding Machine

    Applied in the field of power transformer manufacturing

    ● High-voltage power transformers: Used in 110kV and above power transmission and transformation systems (such as substations and inter-regional power grids), these transformers produce high-voltage windings with copper/aluminum foil conductors to meet high-voltage, low-loss power transmission requirements.

    ● Medium- and low-voltage distribution transformers: Suitable for 10kV and below distribution networks (such as urban power grids and industrial park distribution), these transformers produce low-loss, high-efficiency foil coils to ensure stable power supply to end users.

    ● Specialty power transformers: These include dry-type power transformers (used in fire-resistant environments such as high-rise buildings and subways) and oil-immersed power transformers (used in large outdoor substations). Their foil windings must be wound using this equipment.

    Applied in the field of industrial special reactors/transformers

    ● Filter reactors: Used in high-power industrial applications such as steel and chemical industries, they filter grid harmonics and protect precision equipment. Their foil windings require high insulation strength and overload resistance.

    ● Rectifier transformers: Suitable for industrial production lines requiring DC power, such as electrolytic aluminum and electroplating. High-current-resistant foil coils are wound to ensure stable operation of the rectifier system.

    ● Electric furnace transformers: Used in industrial furnaces (such as arc furnaces and induction furnaces), they produce foil windings capable of withstanding short-term high loads to meet the power needs of high-temperature smelting.

    Applied in the fields of new energy and energy storage equipment

    ● New energy transformers: These include wind turbine box transformers (connecting wind turbines to the grid) and photovoltaic inverter transformers. Their foil coils must withstand harsh outdoor environments (low temperatures, wind and sand) and exhibit low losses.

    ● Energy Storage Converter (PCS) Inductors: These are used in energy storage power plants to wind foil windings for filter and boost inductors in energy storage systems, ensuring efficient conversion between energy storage and release.

    ● Charging Pile Transformers: These are designed for fast-charging charging piles and feature compact, high-power-density foil coils to meet the power needs of electric vehicles for rapid charging.

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