High Frequency 6.0mm Square Tube Mill Architectural Structure Carbon Steel
High Frequency 6.0mm Square Tube Mill Architectural Structure Carbon Steel
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Basic Infomation
Place of Origin: China
Brand Name: ZTZG
Certification: ISO9001
Model Number: ERW219
High Light:

6.0mm square tube mill


high frequency square tube mill


architectural structure high frequency tube mill

Payment & Shipping Terms
Packaging Details: All mechanical equipment is nude packing and electrical parts are packed in wooden cases
Delivery Time: 90 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 200 sets/year
Product Name: High Frequency Architectural Structure Carbon Steel Square Tubes Mill Line
Pipe Shape: Rectangular,Square,Round
Square & Rectangle Tube: 70mm×70mm -170mm×170mm
Thickness: 2.0mm-6.0mm
Line Area: 100m(length) ×9m (width)
Length: 6m-12m
Mill Installed Capacity: 280 Kw
Production Speed: 20-50 M/min
Capacity: 35,000ton/year
Color: Any Color
Workers: 6-8
After-sales Service Provided: Online Support,Engineers Available To Service Machinery Overseas
Application: Drive Shaft Tubes, Guardrail Tubes, Tower Footing Tubes, Automobile Beam Steel Tube
Service: Video, Online Consultation
Product Description

High Frequency Architectural Structure Carbon Steel Square Tubes Mill Line




The high-frequency pipe production line is specialized equipment to produce high frequency straight seam welded pipes for structuralpipe and industrial pipe with 70mm×70mm -170mm×170mm and wall thickness of 2.0mm-6.0mm.


Erw Tube Production Line

ERW Tube Mill Mchine

Direct Square to Square Pipe Mill/Tube Mill

Compare with round into square&rectangle forming way,this way is better for the shape at the edge of cross section,comparatively, semi-diameter of inner arc is Small, and the brim is flat, outlook is regular.

It is directly roll the steel strip and bend it to square & rectangular shape, then weld it to finish the formation.


Accumulator machine


Basic Technical Information of Welded Pipe Production Line


Round Pipe

89mm-219mm Thickness:2.0mm-8.0mm

Square & rectangle tube

70mm×70mm -170mm×170mm Thickness:2.0mm-6.0mm


6m-12m Length         Tolerance: ±3mm

Production Speed

20-50 m/min

Production capacity



Mill installed capacity

280 kw

Line Area

100m(length) ×9m (width)


6-8 workers

Raw Material


Carbon Steel coil

Q235B(ASTM GR·D,σs 230)


280mm-690mm Thickness: 2.0mm-8.0mm

Coil ID


Coil OD

Max 2000mm

Coil Weight





Architectural structure tubes, low-pressure liquid tubes, coal transmission belt tubes, drive shaft tubes, guardrail tubes, tower footing tubes, automobile beam steel tube and other products.







Tube Mill Forming process

Technical flow

Scrolling up→ Uncoiling → Shear and Welding→ Spiral accumulator→ Forming → H.F. induction welding→ External burr removing→ Cooling → Sizing→ Flying saw → Run out table →Inspecting→ Packing→ Warehouse


Forming process

Round pipe

Cold roll forming process

Good roller design

ZTF forming process

Save alt least 60% roller cost with electric control adjustment

Square & rectangular pipe

General round-to-square process

Stable forming process

Round-to-square with turkshead

Good pipe quality

Process of directly square-to-square(DSS)

One set of roller can produce all tubes with electric control and automatic adjustment



Welded Pipe Making Machinery

Equipment Advantages

  • When producing round pipe, it can utilize ZTF forming technique
  • When producing square & rectangular tube, it can utilize directly square-square (DSS) technique


We can design and manufacture square tube machine according to customer’s requirement.

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Get in touch with us
Contact Person : Peter
Tel : 86 13014366066
Fax : 86-311-85956667
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