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Steel Pipe Expansion Machine

The Steel Pipe Expansion Machine is researched and developed for the expansion and re-use of waste oil pipes, water pipes, etc. The MAX steel pipe expansion OD up to 59”, the MAX wall thickness up to 120mm.

Product Description

Product Description





Our Patent - YAXING Steel Pipe Expansion Machine:


·The Steel Pipe Expansion machine is a special equipment for manufacturing seamless steel pipes. In the beginning, the large-diameter seamless steel pipe production cannot meet market demand, and we found a lot of waste oil pipes and water pipes from oil production plants, so we try to research and develop equipment that can renovate and reuse the old pipes, and be able to produce various seamless pipe specifications to meet the market demand. Through unremitting efforts, the YAXING Steel Pipe Expansion machine was invented by our chief engineer Mr. Fu Bingzhong in 1996, and has obtained a national patent.


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·The Steel Pipe Expansion Machine adopts qualified pipes as raw material, through the medium frequency induction heating the pipe to specified temperature, the pipe is continuously pushed through the mandrel by the hydraulic cylinder, which makes the pipes diameter to be bigger. 



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·According to the different needs of users, the technology has been constantly improved and improved. At present, the two-step hydraulic machinery for the expansion of steel pipe has been developed successfully. The intelligent control and remote control of steel pipe expansion unit have been realized, which makes the operation simpler and more efficient.










The steel pipe expansion Technology Features:




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  1. 1) Compare to the hot-rolling and cold-drawing process, the Hot Pipe Expansion Machine is more flexible and economical, especially suitable for the production of small-batch steel pipe with various specifications, that well replenished the sizes of large OD thick wall pipes on the market. 

  2. 2) The steel pipe expansion machine is equipped with PLC medium frequency heating intelligent constant temperature system, precise temperature control, uniform heating, crack-resistant, high qualified ratio. 

  3. 3) 1 to 10 sets of expanding machines can be operated by one operator at the same time. With low labor costs.

  4. 4) The steel pipe expansion machine can change the mother pipe diameter within 1 hour. With high production efficiency. 

  5. 5) The indexes of expansion finished pipe and the mother pipe are completely consistent, completely meet the national standard. So the steel pipe expansion machine is popularized in the world, and have formed a new industry - steel pipe expansion industry.  









The Thermal Expansion Pipes


The Thermal Expansion pipes processed by the thermal expansion pipe machine match with market demand and widely used in all kinds of fields, which has made a great contribution. Including:


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   ·Pipe and pipe fittings manufacturing

   ·Gas and oil transport

   ·Nuclear energy and power station

   ·Military industry 

   ·Aerospace industry 

   ·Marine industry, etc 











The steel pipe expansion machine Procession Scope and Application Area: 


1. The expansion pipes produced by the steel pipe expansion machine have been widely used in the gas and oil industry, nuclear energy and power station, Military industry, aerospace industry, marine industry, etc.


2. The steel pipe expansion machine can be used to produce standard and non-standard any size pipes with seamless and welded pipes. The expansion pipe material can be 


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   ·Carbon steel 

   ·Stainless steel pipe (austenitic, duplex steel)

   ·Titanium alloy steel 

   ·Terminal sensitive cartridge case special steel

   ·T250 special steel, etc









The expansion pipe specifications and Parameter chart:


1) Finished expansion pipe OD range:48-1420mm

2) The max mother pipe wall thickness:120mm

3) The max mother pipe length:25m

4) Pipe OD expansion ratio: 1-1.8

5) Pipe Wall thinning ratio:5%-8%

6) Mother pipe length: finished pipe length×OD expansion ratio



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Our Service For The steel pipe expansion Machine




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  • √ Designed the steel pipe expansion Machine program for free.

  • √ Design the steel pipe expansion machine production layout. 

  • √ On-site guide the steel pipe expansion Machine installation and debugging.

  • √ Training the user to operate the steel pipe expansion Machine.

  • √ Remote online to guide updates the steel pipe expansion machine and solve the issue of the production process. 

  • √ And provide the steel pipe expansion machine accessories at a cheaper cost. 









Our clients



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Since establishment, our factory Dezhou Yaxing Steel Tube Equipment has successively designed and manufactured more than 6000 steel pipe expansion machines, our domestic clients including: Ansteel group, Baogang Group, TPCO Group, CSIC (China shipbuilding industry corporation), Sany heavy industry, Norinco Group, HYST CO, LTD and other well-known enterprises. And the steel pipe expansion machine has been continuously been exported toCanada, Turkey, Argentina, South Korea, Indonesia, Malaysia, etc countries. Welcome to contact us to get a quotation now! 





5. FAQ-(Frequently Asked Questions)


  • >Q1: what's the water cooling method?

  • There are two methods can be chosen by user: 

  • 1) Building water pool by yourself (more economy).    

  • 2) Adopt closed circulating water-cooling system( optional part and order separately).

  • >Q2: What's the advantage of closed circulating water-cooling system compare with a pool? 

  • The pool is opened, so it is easy to fall into a lot of dirty things to block the waterway, that may lead to silicon controlled power supply  burned. Also the pool is generally relatively large with a lot of water, most users will choose tape water, not pure water or soften water, so it is easy to scale inside the pipeline and block the pipeline.

  • But the closed circulating water-cooler is  small, just need little water, adopt pure water or softened water, so that no scaling can be produced. And the closed circulating water-cooler occupies small area, it is convenient to move, the water pipeline  connection is simple, and the cooling speed is fast. 

  • >Q3: will it cause any water pollution while  the steel pipe expansion machine running?

  • No, there’s no any chemical reaction in the cooling water, so there isn’t any pollution for water environment.

  • >Q4: What's the main consumption for the steel pipe expansion machine?

  • 1)The electricity is the most consumption and cost. In addition , need the graphite powder used to lubricate inner wall of pipe. 
    2)Before graphite spraying , need to clean the rust or sawn-off slag inside of pipe by air-blowing .   
    3)The water used to cool the power supply and heating coil can be be recycled with very little consumption.
    4)Hydraulic system needn’t air , it need hydraulic oil with recycling .

  • >Q5: What is the power consumption of the steel pipe expansion machine?

  • 250-350 kWh/tons

  • >Q6: What is the production capacity of equipment running 24 hours in a row?

  • 8-9T

  • >Q7: Can the sheel pipe expansion machine run 24hours for 1 month continually?

  • Yes, no problem. But please check the oil pipelines per month. 

  • >Q8: What's the material of steel sheet that used to weld hydraulic station?

  • Caron steel or stainless steel depends on users' requirement.


If you still can't find your answer here, please email us! 







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