1070 Aluminum Strip for Transformer

1070 aluminum strip is a high-purity aluminum material commonly used for transformer winding and other electrical conductor applications. Compared with general aluminum strip, 1070 aluminum strip offers higher aluminum content and excellent electrical conductivity, making it suitable for dry-type transformers, oil-immersed transformers, distribution transformers and power transformer coils.

For transformer winding applications, 1070 aluminum strip is usually supplied in O temper / soft temper. The material has good flexibility and formability, which helps improve winding efficiency and reduce the risk of cracking, edge damage or deformation during coil production.

Our 1070 aluminum strip for transformer winding is manufactured with controlled rolling, annealing and precision slitting processes. We can provide customized thickness, width, coil inner diameter, edge condition and packaging according to customer requirements.

Typical Chemical Composition:

Note: Chemical composition is for reference only. Final composition can be supplied according to applicable standard and customer technical requirements.

Typical Mechanical Properties:

Note: Mechanical properties may vary depending on thickness, width, annealing condition and production process.

Electrical Conductivity:

Note: Conductivity values are reference data. Specific electrical performance can be tested and supplied according to customer requirements.

Thickness and Width Tolerance:

Note: Tolerance can be adjusted according to actual product size, production capability and customer technical agreement.

For transformer winding, edge quality is very important because burrs or sharp edges may damage insulation materials during winding. We control the slitting and edge treatment process to ensure stable winding performance.

Note: Special edge requirements can be discussed according to transformer winding process and customer drawings.

1070 aluminum strip for transformer winding is widely used in:

• Transformer winding

• Dry-type transformer coils

• Oil-immersed transformer coils

• Distribution transformers

• Power transformers

• Electrical conductor components

• Aluminum winding material for electrical equipment

• Reactor and electrical coil applications

1070 aluminum strip has higher aluminum purity than 1050 and 1060 aluminum strip. Because of this, it provides excellent electrical conductivity and good processing performance. It is a suitable choice for transformer manufacturers who require stable conductor performance and reliable coil winding quality.

Main Advantages:

• Higher aluminum purity

• Excellent conductivity for transformer applications

• Good softness after annealing

• Easy to wind and process

• Reduced risk of cracking during winding

• Good surface and edge quality

• Suitable for customized transformer coil design

Both 1060 and 1070 aluminum strips can be used for transformer winding. If the customer requires higher conductivity and higher aluminum purity, 1070 aluminum strip is often a better option.

Our 1070 aluminum strip for transformer winding is produced through a controlled manufacturing process to ensure stable conductivity, accurate dimensions, soft temper and smooth surface quality.

Production Flow:

Raw Material Inspection → Rolling → Annealing → Precision Slitting → Edge Inspection → Conductivity Testing → Rewinding → Packaging

To meet transformer winding requirements, we carry out strict quality inspection during production and before shipment.

• Chemical composition inspection

• Thickness tolerance inspection

• Width tolerance inspection

• Surface quality inspection

• Edge burr inspection

• Edge collapse inspection

• Conductivity testing

• Tensile strength and elongation testing

• Coil appearance inspection

• Packaging inspection before shipment

Our quality control process helps ensure that every coil of 1070 aluminum strip has stable performance and reliable winding quality.

1070 aluminum strip for transformer winding should have a smooth and clean surface. The surface should be free from obvious scratches, dents, oil stains, oxidation marks and other defects that may affect winding or insulation performance.

Surface Requirements

• Smooth surface finish

• Clean and bright appearance

• No obvious scratch

• No serious oxidation

• No oil stain or contamination

Suitable for insulation paper or film wrapping during transformer winding

• Eye to wall / eye to sky packaging available

• Moisture-proof film wrapping

• Anti-rust and anti-moisture protection

• Wooden pallet packaging

• Wooden case packaging

• Export-standard seaworthy packaging

• Customized packaging available

Each coil can be packed according to customer requirements, including coil inner diameter, coil weight, label information and shipping marks.

• 1. What is 1070 aluminum strip?

  1070 aluminum strip is a high-purity aluminum strip with aluminum content of about 99.70% or above. It has excellent electrical conductivity and good formability, making it suitable for electrical and transformer applications.

• 2. Is 1070 aluminum strip suitable for transformer winding?

  Yes. 1070 aluminum strip in O temper is widely used for transformer winding because it has good conductivity, softness and ductility.

• 3. What temper is usually used for transformer winding?

  O temper / soft temper is commonly used for transformer winding because it allows easier bending and winding during coil manufacturing.

• 4. What is the advantage of 1070 compared with 1060?

  1070 aluminum strip has higher aluminum purity and usually better electrical conductivity than 1060 aluminum strip. It is suitable for transformer winding applications requiring higher conductor performance.

• 5. Can you supply custom width and thickness?

  Yes. We can supply customized thickness, width, inner diameter, coil weight and edge condition according to customer requirements.

• 6. Can you provide deburred edge or round edge?

  Yes. Deburred edge and round edge can be provided according to customer winding requirements.

• 7. What is the typical thickness range?

  Common thickness range is 0.20 – 3.00 mm. Other specifications can be discussed based on production capability.

• 8. Can you provide samples?

• Sample availability depends on specification and stock condition. Please contact us with your required size.

• 9. How do you ensure product quality?

  We inspect chemical composition, thickness, width, surface quality, edge burr, conductivity and mechanical properties during production and before shipment.

• 10. What information should I provide when sending an inquiry?

  Please provide alloy, temper, thickness, width, coil inner diameter, quantity, edge requirement and application. If you have technical drawings or standards, please send them together.