Steel pipe seam annealing machine

1. 3. Basic Technical Data (Typical)

   Item	Typical Range
   Applicable Pipe Diameter	Φ10 mm ~ Φ168 mm
   Applicable Wall Thickness	0.4 mm ~ 5.0 mm
   Annealing Temperature Range	850°C ~ 1100°C
   Output Frequency (Power Source)	50 kHz ~ 400 kHz (customized per pipe size)
   Output Power	30 kW ~ 300 kW
   Line Speed Compatibility	10 ~ 120 m/min
   Heating Zone Length	100 mm ~ 300 mm (adjustable)
   Temperature Control Accuracy	±5°C
   Cooling Method	Air cooling / Water cooling
   Control System	PLC + HMI (touchscreen interface)

    

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   4. Main Components

   1. High- or Medium-Frequency Power Supply – Provides alternating current for induction heating.

   2. Induction Coil – Custom-designed (ring or U-type) to surround the weld seam.

   3. Support/Guiding Structure – Ensures pipe stability during the annealing process.

   4. Temperature Sensor – Infrared or thermocouple sensors for accurate weld temperature feedback.

   5. Cooling System – Air or water cooling units to rapidly reduce temperature.

   6. PLC Control System – Automates power, temperature, and speed adjustments.

   7. Human-Machine Interface (HMI) – Allows the operator to monitor and set parameters.

5. Operation Details

Basic Operation Workflow:

1. Startup

   • Check cooling system, power, air, and water connections.

   • Launch the PLC and input preset parameters: temperature, speed, power level.

2. Heating Start

   • Turn on the induction power; magnetic field is generated in the coil.

   • Pipe is fed into the coil either automatically or manually.

3. Real-Time Temperature Control

   • Infrared thermometer monitors the weld seam; system adjusts power automatically to maintain set temperature.

4. Cooling Process

   • Weld seam enters the cooling zone for rapid temperature drop, forming desired microstructure.

5. Shutdown & Safety

   • After process completion, turn off the power and cooling in sequence.

   • Inspect coils, grounding, and pipes to ensure safe conditions.

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. Eddy current machine
3. 2. Seam annealing machine
   
4. 3. Straightener machine
   
5. 4. Chamfer and end facer machine
   
6. 5. Hydro Tester machine
   
7. 6. Threading machine
   
8. 7. Painting and oil machine
   
9. 8. Automatic bundle and package machine

1.  
2. 1. Rollers, Moulds, Dies, D2,D3 material to choose
3. 2. Ferrite, Impeder, Fiberglass tube
   
4. 3. HSS saw blades, TCT Saw blades, Friction saw blades
   
5. 4. OD burr remove inserts, ID burr remover inserts
   
6. 5. HF welder Induction Coil and other HF welder spare parts
   
7. 6. Copper tube for induction Coil, PTFE pipe for Induction Coil
   
8. 7. Mosfet, Boards
   
9. 8. Steel pipe Strapping machine
   
10. 9. Zinc Spray Machine, Zinc wire, Zinc spray gun

1. Why Choose Us?
   

2. 1.Leading Technology, Reliable Quality, Excellent Service! Optimized Design, High quality material select!  Heat treatment process guarantee!

3. 2.Spiral bevel gear, drum gear coupling and carburization. Gear teeth quenching. Driven system stable, efficient and wearable with lower noise.

4. 3.High precision wear resisting and Long life of toolings. All the machine Lathes, Key Grooves are positioned and Milled by CNC.

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

After-sales service

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 hours for engineer response.
   
6. 6.Your business relationship with us will be confidential to any third party.
7. 7.  We welcome customers to visit our factory anytime.