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China Steel Pipe Making Ferrite Core Magnetic Materials for Efficient Welding - Leading Suppliers & Factory

Introducing our premium line of products, proudly made in China by leading suppliers in the industry. Our factory utilizes state-of-the-art technology and skilled craftsmanship to ensure that each item meets the highest quality standards. With a commitment to excellence and sustainability, we work closely with trusted partners in China to deliver innovative solutions that cater to diverse needs. Explore our extensive range and discover the exceptional value that comes from sourcing directly from reliable suppliers and a dedicated factory. Experience the difference today!

Product Details

Product Feature

High Magnetic Permeability & Strong Flux Concentration

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.

Low power loss & efficient energy conversion

The ferrite material reduces eddy current and hysteresis losses to some extent, making energy consumption more efficient and induction heating more stable.

Durable Construction for Industrial Environments

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

Focused Energy for Reliable Welding Heat

Energy can be focused on the weld zone, contributing to consistent heating and less seam defects.

Extended Service Life

Excellent performance and proper cooling design, which reduce thermal stress, lower the risk of cracking and early failure.

Improved Welding Efficiency & Lower Power Consumption

By minimizing magnetic losses and reinforcing flux coupling, the rod contributes to energy savings and higher overall welding system efficiency.

Easy Integration & Maintenance

Standardized dimensions and cooling options allow quick installation and replacement — minimizing downtime on the production line.

Frequently Asked Questions

Q What is the primary function of a ferrite rod in high-frequency welding?

A ferrite rod acts as an impeder inside the tube mill. It concentrates the magnetic flux generated by the induction coil, directing the heating energy precisely to the weld seam to ensure high-quality and consistent welds.

Q What is the difference between hollow and solid ferrite rods?

Hollow ferrite rods feature a central channel that allows coolant (such as water or soluble oil) to flow directly through the rod, which is crucial for heat dissipation in continuous high-speed welding. Solid ferrite rods do not have this channel and are typically used in applications where external cooling is sufficient or thermal demands are lower.

Q Why is manganese-zinc (Mn-Zn) ferrite used for these rods?

Manganese-zinc ferrite offers exceptionally high magnetic permeability and low power loss at high frequencies. This makes it highly efficient at concentrating magnetic flux while minimizing internal heat buildup and eddy current losses.

Q How can I extend the service life of a ferrite rod?

To maximize service life, ensure a constant and adequate flow of clean coolant to reduce thermal stress. Additionally, using rods with high mechanical density and proper installation will prevent physical cracking during high-speed tube mill operations.

Q Are custom sizes available for hollow and solid ferrite rods?

Yes. While we offer a comprehensive list of standard dimensions as shown in our specification tables, custom lengths, outer diameters, and inner diameters can be manufactured to match your specific welding equipment requirements.

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