Induction Coil For High Frequency Welding Machine

Induction coil, produce by Copper plate or copper pipe, small type outside cover PTFE pipe, Inductance coil is an important component in high-frequency welding machine.

Correct work coil sizing

Coil Sizing Diagram

The HF coil diameter should be large enough to ensure reasonable clearance between the OD of the tube and the ID of the coil. Generally, the coil ID should be about 25% larger than the tube. Coil length and coil inside diameter should be equal and again, be approximately 25% larger than the tube with a maximum of 1” radial clearance. 

1, 2, 3, 4, or 5 turns?

Typically 1 turn is used on solid state welders for larger tubes starting around 2.500″ OD, 2 turn coils are used on solid state welders when the tube is less than 2.5000″ OD, 3 turn coils are used on vacuum tube welders almost all tube OD’s. 

Does coil direction matter?

Typically if you run a left-to-right work coil on a right-to-left running mill, the amount of the coil being next to the weld rolls is decreased and the distance between the coil and weld roll is increased. This added distance between the coil and the rolls can make your efficiency drop which means you may need to increase power to make good welds. If you run a left-to-right work coil on a left-to-right running mill, more of the coils tend to be closer to the weld rolls and this means power can be reduced and efficiency goes up. This is more important on a solid state welder than it is on the older vacuum tube welders but it can still help the vacuum tube welders run more efficiently saving the customer money.

A well designed induction coil is one of the critical point to ensure the best operating efficiency of HF welders.we can offer differenct specifications as per your tube sizes.

When in line, when offset?

All 2-turn Solid State coils are offset a small amount. With vacuum tube coils the offset usually has to do with the configuration of the weld rolls.

Why banded or non-banded?

Non-banded coils seem to work well on vacuum tube welders. Solid State welders require more coupling so the coils are designed with a band.

Our Spare Parts Apply:

1. Roller, Mould, Cr12, Cr12Mov material, D2,D3 material

2. Ferrite, Impeder, Fiberglass tube

3. HSS saw blades, TCT Saw blades, Friction saw blades

4. OD burr remove inserts, ID burr remover inserts

5. HF welder Induction Coil and other HF welder spare parts

6. Copper tube for induction Coil, PTFE pipe for Induction Coil

7. Mosfet, Boards

8. Steel pipe Strapping machine

9. Zinc Spray Machine, Zinc wire, Zinc spray gun

Why Choose Us?

Leading Technology, Reliable Quality, Excellent Service!

Optimized Design, High quality material select! 

Heat treatment process guarantee!

Spiral bevel gear, drum gear coupling and carburization.

Gear teeth quenching.

Driven system stable, efficient and wearable with lower noise.

High precision wear resisting and Long life of rollers.

All the machine Lathes, Key Grooves are positioned and Milled by CNC.