8 Inches Pipe Making Machine with ERW Hf Welding

Good Quality  Tube Mill 8 Inches Pipe Making Machine with ERW HF welding

Summary
This equipment is specially used for producing Φ 89-Φ 219mm, thickness 3.0-8.0mm high frequency straight seam welded pipe and corresponding square pipe and special-shaped pipe(δ ≤ 6.0mm). The composition of equipment is from uncoiler to computer-controlled fixed length cutting saw. Rolling speed can be adjusted correspondingly within suitable range of pipe diameter and wall thickness.

The technical flow of the production line
Coil car -- Double-head un-coiler -- Five-roll Flattener -- Strip-head Cutter and welder Horizontal spiral accumulater -- Forming section(Flattening unit + Main driving unit + Forming unit + Guide unit + High frequency induction welding unit + squeeze roller)+ De-burr frame -- Cooling unit -- Sizing unit and straightener -- Flying saw cutter -- Run-out table

Main data
Basic conditions:
A) Steel Pipe Specification
1. Round Pipe diameter: Φ 89mm-Φ 219mm
Pipe Thickness: 3.0 8.0mm
2. Square and rectangle pipe: 70x70-170X170mm
Pipe Thickness: 3.0 6.0mm
3. Pipe Length: 5 - 12m
B) Steel Coil Specification
1. Material: Low-carbon steel, low alloy steel
δ S≤ 345Mpa, δ B≤ 610Mpa
2. Steel Tape: Inner diameter: Φ 600-800mm
Outer diameter: Φ 1800mm
Strip steel width: 280mm-690mm
Strip steel thickness: 3.0mm-8.0mm
The maximum weight: 10.0 tons
C) Electric installed capacity: Approx. 1300KW
D) Cooling water
1. Reservoir for High Frequency equipment: 35m³ , one set
2. Reservoir for circulating cooling water: 30m³ , one set
E) Compressed air: Pressure 0.4Mpa, Flow 4.0m3/h
F) Line speed: 20-50m/min

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