Impeder Rods for High Frequency Welding

Fiberglass+Ferrite+copper end

Return flow of cooling liquid ( round , square and rectangular sections )

Through flow impeders are the most common type of impeders and are a relatively simple concept, our designs ensure maximum high quality ferrite mass is placed within a well-constructed assembly. The result is improved performance, saving you money and increasing productivity.

mpeders must be always well proportioned and always together with inductors since together they create the electromagnetic inductive circuits that allow a good and efficient induction welding.

The high-frequency welding impeder is a critical component within welded tube production lines, typically installed inside the pipe near the weld seam. Its primary function is to guide and concentrate the high-frequency current along the strip edges, preventing current from dispersing through the center of the tube. This intensifies both the skin and proximity effects, ensuring fast and focused heating at the weld zone.

Impeders are generally constructed using high-permeability ferrite materials or iron-core assemblies, and can be configured in various shapes and sizes to suit specific production needs. A well-designed impeder improves energy efficiency, enhances weld consistency, and stabilizes the heating process—leading to stronger, cleaner welds and higher line speeds.

In addition to improving electrical efficiency, quality impeders offer excellent thermal resistance, mechanical strength, and magnetic performance, allowing them to withstand the demanding environment of continuous high-frequency operations. Proper selection based on parameters such as pipe diameter, operating frequency, and welding power is essential for achieving optimal welding results.

All of our impeders are designed to ensure effective cooling and protection of the ferrite core inside the construction. It is essential that ferrite is properly cooled  to maximise welding efficiency and maintain stable parameters for product quality.

Standard through flow impeders – Ferrite is totally enclosed inside the casing  

Exposed Ferrite impeders – around 10-15% of the end of the ferrite protrudes from the casing  

We have standard male imperial couplings but can offer metric or other threads on request.

Impeders are available in length options of 230mm, 330mm & 430mm.

Impeder Cooling: Todos os nossos impedidores são projetados para garantir resfriamento e proteção eficazes do núcleo de ferrite dentro do impedidor. É essencial que a ferrite seja resfriada eficientemente para maximizar a eficiência da soldagem e manter parâmetros estáveis ​​para a qualidade do produto. O refrigerante deve ser limpo, de preferência filtrado. Uma pressão garantirá o resfriamento adequado na maioria das condições operacionais. Os requisitos de fluxo do refrigerante variam amplamente devido à temperatura de entrada, potência de solda, frequência e geometria da área de solda. Em situações de alta densidade de potência e em altas temperaturas ambientes, um pequeno resfriador para refrigerante de impedimento e serpentina de trabalho pode melhorar muito a eficiência. Cooling by air or other gas is not recommended, but can be useful in special situations where the presence of water inside the tube cannot be tolerated. Gas, such as nitrogen, have a density that is at least 1,000 times less than that of water, so coolant volume must be increased accordingly.

1. Enter Section Equipments
2.  
3. 1. Coil car and Storage
4. 2.Single And Double Heads Un-coiler & Hydraulic And Pneumatic Un-coiler
5. 3.Peeler and hold down roll arm
6. 4.Flattening Machine
7. 5.Automatic and Semi Auto Shearer & Butt Welder
8. 6.Vertical Cage Accumulator​ & Horizontal Loop Accumulator & Landing Horizontal Spiral Loop Accumulator
   

1.  
2. 1. Máquina de correntes parasitas
3. 2. Máquina de recozimento de costura
   
4. 3. Máquina alisadora
   
5. 4. Máquina de chanfrar e facear
   
6. 5. Máquina de teste hidrostático
   
7. 6. Máquina de rosquear
   
8. 7. Pintura e máquina de óleo
   
9. 8. Máquina automática de embrulhar e embalar

1.  
2. 1. Rollers, Moulds, Dies, D2,D3 material to choose
3. 2. Ferrite, Impedor, Tubo de fibra de vidro
   
4. 3. Lâminas de serra HSS, Lâminas de serra TCT, Lâminas de serra de fricção
   
5. 4. Insertos removedores de rebarbas OD, insertos removedores de rebarbas ID
   
6. 5. Bobina de indução para soldador HF e outras peças de reposição para soldador HF
   
7. 6. Tubo de cobre para bobina de indução, tubo de PTFE para bobina de indução
   
8. 7. Mosfet, Placas
   
9. 8. Máquina de cintar tubos de aço
   
10. 9. Máquina de pulverização de zinco, fio de zinco, pistola de pulverização de zinco

1. Por que nos escolher?
   

2. 1.Leading Technology, Reliable Quality, Excellent Service! Design otimizado, seleção de materiais de alta qualidade!  Garantia do processo de tratamento térmico!

3. 2.Spiral bevel gear, drum gear coupling and carburization. Têmpera dos dentes da engrenagem. Sistema acionado estável, eficiente e usável com menor ruído.

4. 3.High precision wear resisting and Long life of toolings. Todos os tornos e ranhuras de máquinas são posicionados e fresados ​​por CNC.

5. 4.Quality department make sure the material of the raw materials quality, and ensure the machine running perfect.

Serviço pós-venda

1. 1.Machine test running videos will supply to customer before shipment.
2. 2.Online techenical support WHOLE LIFT FREE.
   
3. 3.Professional engineers team to install the machine,  train your employee well.
   
4. 4.One year warranty and life-long technical support.
   
5. 5,24 horas para resposta do engenheiro.
   
6. 6. Seu relacionamento comercial conosco será confidencial para terceiros.
7. 7.  We welcome customers to visit our factory anytime.