Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
  • Bare Copper Wire (Stranded Wire):
  • Bare Copper Wire (Stranded Wire):

Bare Copper Wire (Stranded Wire)

Jintian is one of the most experienced stranded wire suppliers and stranded copper wire manufacturers in the industry. With years of experience and expertise, Jintian has become a trusted name in providing high-quality stranded wires to various industries and applications.

As the stranded copper wire manufacturer, we supplies the electrical round copper wire products, which are widely used in industries such as transposed conductors, ultra-high voltage cables, various types of wires and cables, various types of enameled wires, network wires, electronic wires and communication wires. There are many high-quality stranded copper wire for sale at a reasonable price. If you want to buy stranded copper wire, you can contact us. 

Bare Copper Wire (Stranded Wire) Certifications
  • ISO9001
  • ISO14001

What is Bare Copper Wire Used for

Bare copper wire is a type of electrical wire that does not have any coating or insulation on it, which means that it is entirely made of copper. This type of wire is commonly used in a wide range of electrical applications, including:


Stranded copper wire for sale is often used as a grounding wire in electrical systems. The wire is connected to a grounding rod or plate, which helps to protect against electrical surges and lightning strikes.

Electrical wiring

Bare copper wire and stranded wire products are also used in electrical wiring applications where insulation is not required. For example, it can be used to connect two metal components together or as a component in a homemade electrical circuit.

Arts and crafts

Stranded wire product is a popular material for jewelry making and other arts and crafts projects. The wire can be easily shaped and formed into different designs, and its natural copper color provides a unique and attractive look.

Science experiments

Bare copper wire and stranded copper wire is commonly used in science experiments and demonstrations, such as creating electromagnets or simple circuits.

Bare Copper Wire (Stranded Wire) Application Fields

  • Communication Field
    Communication Field
  • Photovoltaic Cable
    Photovoltaic Cable
  • Transformer Coil
    Transformer Coil

Bare Copper Wire (stranded wire) Performance Parameter

Product propertiesInternal Control Standards
±10turnsCopper spikesNone
CrackTotal less than 3cm
Peel offTotal less than 3cm
Copper powder(mg)≤5mg≤15mg

Turns until torsion(turns)

Without any bell-shapes or cracks

Oxygen content(ppm)200-250≤400
Number of flaws detected(L)≤1
Number of iron detected(L)0
Oxide layers﹤600

Smooth surface, no burr, no impurities or other flaws

Smooth surface, no burr, no impurities or other flaws

Production condition

Blocks in the furnacenone
Cold coppernone

Stabilitu of copper water temperature

Stability of ingot temperature±5℃
Casting conditionWithout significant fluctuations in the level
OthersNormal and Stable

Bare Copper Wire (Stranded Wire) Production Process

The conventional production process:

Bare Copper Wire (Stranded Wire) Production Process
  • 01
    Raw materials
  • 02
  • 03
  • 04
    Surface treatment
  • 05
  • 06
    Acid-free cleaning
  • 07
    Liquid wax spraying
  • 08
    Wire take-up
  • 09
    Finished product inspection
  • 10
  • 11
  • 12

Bare Copper Wire (stranded wire) Executive Standard

GB/T3953-2009, GB/T4910-2009, GB/T12970-2009, GB/T3952-2016

Bare Copper Wire (Stranded Wire) Production Equipments

  • American Continuous Casting And Rolling Production Line
    American Continuous Casting And Rolling Production Line
  • Stranding Machine
    Stranding Machine
  • Germany Nihofer Drawing Line
    Germany Nihofer Drawing Line
  • Monofilament Equipment
    Monofilament Equipment
  • Big Drawing Machine
    Big Drawing Machine
Start Your Partnership With JINTIAN COPPER!
Whether you have any questions about our products, please feel free to contact us, we will reply as soon as possible.