China Suppliers Foil Winding Equipment for Transformers | High & Low Voltage Factory Solutions
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
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 winding.
- 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
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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.
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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.
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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
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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.
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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.
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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
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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.
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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.
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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.
Frequently Asked Questions
Q1
What foil materials are compatible with the SH series foil winding machines?
The SH series foil winding machines are compatible with both copper (Cu) and aluminium (Al) foils. Copper foil thickness ranges from 0.3 to 2.5mm, while aluminium foil thickness ranges from 0.5 to 3.0mm. Both single-layer and double-layer foil configurations are supported.
Q2
What is the maximum foil width supported by the SH-1400 model?
The SH-1400 model supports a foil width range of 300–1400mm, making it the most capable model in the SH series for wide-foil transformer coil winding applications, including large power and industrial transformers.
Q3
How does the correction system work on these foil winding machines?
The correction system uses photoelectric analog sensors that do not make physical contact with the foil edge. This non-contact design ensures that both thick and thin foils are accepted without risk of edge damage, providing a correction precision of ±0.5mm for consistent winding quality.
Q4
What welding methods are available on the SH series foil winding machines?
The SH series supports two welding methods: TIG (Tungsten Inert Gas) welding and cold pressure welding. The welding speed is adjustable from 0 to 0.5 m/min, allowing operators to select the most suitable method based on foil material and application requirements.
Q5
What industries and applications are these foil winding machines suitable for?
The SH series foil winding machines are widely used in power transformer manufacturing (high-voltage, medium/low-voltage, and specialty transformers), industrial reactors and rectifier transformers, as well as new energy and energy storage equipment — including wind and photovoltaic transformers, energy storage converter inductors, and charging pile transformers.
Q6
How is tension controlled during the foil winding process?
Tension is controlled using a motor initiative supplying tension method, which maintains stable tension throughout the entire winding process — including during winding, stopping, and foil returning phases. This advanced approach prevents loosening caused by tension loss, ensuring high-quality and consistent coil winding results.