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 nuestros impedidores están diseñados para garantizar una refrigeración eficaz y la protección del núcleo de ferrita en el interior del impedidor. Es esencial que la ferrita se enfríe de manera eficiente para maximizar la eficiencia de la soldadura y mantener parámetros estables para la calidad del producto. El refrigerante debe estar limpio, preferiblemente filtrado. Una presión garantizará un enfriamiento adecuado en la mayoría de las condiciones de funcionamiento. Los requisitos de flujo de refrigerante varían ampliamente debido a la temperatura de entrada, la potencia de soldadura, la frecuencia y la geometría del área de soldadura. En situaciones de alta densidad de potencia y a altas temperaturas ambientales, un pequeño enfriador para el refrigerante de la bobina de trabajo y del impedidor puede mejorar en gran medida la eficiencia. 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 corrientes de Foucault
3. 2. Máquina de recocido de costura
   
4. 3. Máquina alisadora
   
5. 4. Máquina de biselado y refrentado de extremos
   
6. 5. Máquina de prueba hidrostática
   
7. 6. Máquina roscadora
   
8. 7. Máquina de pintura y óleo
   
9. 8. Máquina automática para embalar y empaquetar paquetes

1.  
2. 1. Rollers, Moulds, Dies, D2,D3 material to choose
3. 2. Ferrita, Impeder, Tubo de fibra de vidrio
   
4. 3. Hojas de sierra HSS, hojas de sierra TCT, hojas de sierra de fricción
   
5. 4. Insertos para quitar rebabas de diámetro exterior e insertos para quitar rebabas de diámetro interior
   
6. 5. Bobina de inducción para soldador de alta frecuencia y otras piezas de repuesto para soldador de alta frecuencia
   
7. 6. Tubo de cobre para bobina de inducción, tubo de PTFE para bobina de inducción
   
8. 7. MOSFET, placas
   
9. 8. Máquina flejadora de tubos de acero
   
10. 9. Máquina pulverizadora de zinc, alambre de zinc, pistola pulverizadora de zinc

1. ¿Por qué elegirnos?
   

2. 1.Leading Technology, Reliable Quality, Excellent Service! ¡Diseño optimizado, selección de materiales de alta calidad!  ¡Garantía de proceso de tratamiento térmico!

3. 2.Spiral bevel gear, drum gear coupling and carburization. Temple de dientes de engranajes. Sistema accionado estable, eficiente y portátil con menor ruido.

4. 3.High precision wear resisting and Long life of toolings. Todos los tornos y ranuradores de las máquinas están posicionados y fresados ​​mediante CNC.

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

Servicio postventa

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 la respuesta del ingeniero.
   
6. 6. Su relación comercial con nosotros será confidencial para cualquier tercero.
7. 7.  We welcome customers to visit our factory anytime.