The proposed tube mill is a combination of equipment installed in a line for the production of High Frequency Induction Welded (HFIW) carbon steel tubes. The process involved is cold forming of carbon steel strip in circular shapes, longitudinal welding, sizing, converting into specified shape and cutting to pre determined length.
2. BASIC DESIGN DATA
Design of the proposed line is based on following specification:
▪Raw Material Specification
Material to be processed | Low Carbon steel & Galvanized steel, |
Material | δb≤500Mpa, δs≤235Mpa |
Coil OD | Max 2000mm |
Coil ID | 508mm&610mm(depend on customer order) |
Coil Weight | Max 15,000 kg |
Strip Width | Min 360mm, Max 860mm |
Strip Width Tolerance | ± 0.1 mm |
Strip Thickness | Min 3.0 Max 10.0 mm |
▪ Production Range
Type of production | ▪Round Tubes ▪Square and Rectangular Hollow Sections |
Round Tube OD | Min 114mm, Max 219mm |
Round Tube Thickness | Min 3.0mm, Max 10.0mm |
Square Hollow Section | Min 90x90mm, Max 200x200mm |
Rectangular Hollow Section | Min 80x100mm, Max 250x150mm |
Square Tube Thickness | Min 3.0mm, Max 9.0mm |
Tube Cut Length | Min 5 meter, Max 7meter |
Tube Standard | Dimensionally as per any relevant international standard |

4. The technical flow of the production line
{Steel Tape}→→ Double-head un-coiler →→Strip-head Cutter and welder→→
Spiral accumulator→→Forming section(Flattening unit +Main driving unit +Forming unit +Guide unit +squeeze roller)+ De-burr frame →→Cooling unit →→ Sizing unit and straightener →→Friction saw →→ Run-out table
1. BASIC DESIGN DATA
Design of the proposed line is based on following specification:
▪Raw Material Specification
Raw Material Feeding | Low Carbon steel & Galvanized steel,S235 |
Material Tensile Strength | Max 523MPa |
Material Yield Strength | Max 430MPa |
Coil OD | 1500mm to 2300mm |
Coil ID | 760mm&610mm (customer order) |
Coil Weight | Max 15000 kg |
Strip Width | Min 180mm, Max 520mm |
Strip Width Tolerance | ± 0.5 mm |
Strip Thickness | Min3.0 Max 11.0 mm |


We still apply different types accumulator:

We provides all equipment to tube mill entry section:
* Coil Car
* Single And Double Heads Un-coiler & Hydraulic And Pneumatic Un-coiler
* Peeler and hold down roll arm
* Flattening Machine
* Automatic and Semi Auto Shearer & Butt Welder
* Vertical Cage Accumulator & Horizontal Loop Accumulator & Landing Horizontal Spiral Loop Accumulator

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.



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