China Suppliers Factory for Steel Pipe Making Ferrite Core Magnetic Materials for Efficient Welding
Product Feature
Superior manganese-zinc ferrite material has outstanding magnetic permeability which can concentrate magnetic flux density inside the induction coil and minimize magnetic reluctance. In this way, the energy is focused on the weld seam.
The ferrite material reduces eddy current and hysteresis losses to some extent, making energy consumption more efficient and induction heating more stable.
With high density and thermally stable construction, the ferrite rod has higher mechanical strength and durability in continuous high-speed welding conditions.
Hollow Ferrite Rod Specification (MM)
| # | First | Last | Handle |
|---|---|---|---|
| 10 × 100 | 10 × 140 | 10 × 200 | 10 × 70 |
| 11 × 100 | 11 × 140 | 11 × 200 | 11 × 70 |
| 12 × 100 | 12 × 140 | 12 × 200 | 12 × 70 |
| 13 × 100 | 13 × 140 | 13 × 200 | 14 × 70 |
| 13.5 × 100 | 13.5 × 140 | 14 × 200 | 8 × 120 |
| 14 × 100 | 14 × 140 | 15 × 200 | 10 × 120 |
| 15 × 100 | 15 × 140 | 16 × 200 | 12 × 120 |
| 16 × 100 | 16 × 140 | 17 × 200 | 10 × 160 |
| 17 × 100 | 17 × 140 | 18 × 200 | |
| 18 × 100 | 18 × 140 | 20 × 200 | |
| 20 × 100 | 20 × 140 | 22 × 200 | |
| 22 × 100 | 22 × 140 | 24 × 200 | |
| 25 × 100 | 24 × 140 | 25 × 200 | |
| 30 × 100 | 25 × 140 | 28 × 200 | |
| 28 × 140 | 30 × 200 | ||
| 30 × 140 | 32 × 200 | ||
| 32 × 140 | 35 × 200 | ||
| 35 × 140 | 36 × 200 | ||
| 36 × 140 | 38 × 200 | ||
| 38 × 140 |
Solid Ferrite Rod Specification (MM)
| # | First | Last | Handle |
|---|---|---|---|
| 5 × 100 | 7 × 140 | 8 × 200 | 10 × 70 |
| 6 × 100 | 8 × 140 | 9 × 200 | 11 × 70 |
| 7 × 100 | 9 × 140 | 10 × 200 | 12 × 70 |
| 7 × 100 | 10 × 140 | 11 × 200 | 14 × 70 |
| 8 × 100 | 11 × 140 | 12 × 200 | 8 × 120 |
| 9 × 100 | 12 × 140 | 13 × 200 | 10 × 120 |
| 10 × 100 | 13 × 140 | 14 × 200 | 12 × 120 |
| 11 × 100 | 13.5 × 140 | 15 × 200 | 10 × 160 |
| 12 × 100 | 14 × 140 | 16 × 200 | |
| 13 × 100 | 15 × 140 | 17 × 200 | |
| 13.5 × 100 | 16 × 140 | 18 × 200 | |
| 14 × 100 | 17 × 140 | 20 × 200 | |
| 15 × 100 | 18 × 140 | 22 × 200 | |
| 16 × 100 | 20 × 140 | 24 × 200 | |
| 17 × 100 | 22 × 140 | 25 × 200 | |
| 18 × 100 | 22 × 140 | 28 × 200 | |
| 20 × 100 | 24 × 140 | 30 × 200 | |
| 22 × 100 | 25 × 140 | 32 × 200 | |
| 25 × 100 | 28 × 140 | 36 × 200 | |
| 30 × 100 | 30 × 140 | 38 × 200 | |
| 32 × 140 | |||
| 35 × 140 | |||
| 36 × 140 | |||
| 38 × 140 |
Product Advantage
Energy can be focused on the weld zone, contributing to consistent heating and less seam defects.
Excellent performance and proper cooling design, which reduce thermal stress, lower the risk of cracking and early failure.
By minimizing magnetic losses and reinforcing flux coupling, the rod contributes to energy savings and higher overall welding system efficiency.
Standardized dimensions and cooling options allow quick installation and replacement — minimizing downtime on the production line.
Frequently Asked Questions
Manganese-zinc (Mn-Zn) ferrite rods offer high magnetic permeability and low power loss. This allows them to concentrate the magnetic flux efficiently at the weld seam, reducing energy consumption and ensuring stable, high-speed induction heating.
Hollow ferrite rods allow coolant to pass directly through the center, which is highly beneficial for intensive cooling in high-frequency tube mills. Solid ferrite rods are typically used when maximum magnetic flux concentration is required and external cooling is sufficient.
By minimizing eddy currents and hysteresis losses, our ferrite rods ensure that a higher percentage of the input electrical energy is converted directly into heat at the weld zone, lowering overall power consumption.
We offer a wide range of sizes for both hollow and solid structures, with diameters ranging from 5mm to over 38mm, and standard lengths of 70mm, 100mm, 140mm, 160mm, and 200mm to match different tube mill configurations.
Cracking is usually caused by thermal stress. Ensuring a constant and adequate flow of clean cooling water (especially when using hollow rods) is essential to maintain thermal stability and extend the service life of the rods.
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