Pipe making machine ZG76

Pipe making machine ZG76 The thickness of steel strip: 1.2-4.0mm (As per GB708-88) The width of steel strip:78-250mm

1. Description

1.1 Summary:

This equipment is specially used for producingΦ25-Φ80mm, δ1.2-4.0mm high-frequency straight seam welded pipe and corresponding square pipe and special-shaped pipe (δ≤3.25mm). The composition of equipment is from uncoiler to fixed length cutting saw. Rolling speed can be adjusted correspondingly within suitable range of pipe diameter and wall thickness.

1.2 Applicable material:

Material	Low-carbon steel, low alloy steelδs≤345Mpa,δb≤610Mpa
The thickness of steel strip	1.2-4.0mm (As per GB708-88)
The width of steel strip	78-250mm
I.D. of steel coil	Φ450-Φ550mm
O.D. of steel coil	Φ800-Φ1200mm
Maximum weight coil	2500kgs
Hot or cold-rolled steel strip (As per GB700-88 or GB1591-88)

1.3 Dimension range of processing steel pipe:

O.D.	Φ25 -Φ80mm
Wall thickness	1.2-4.0mm (square pipe and special-shaped pipeδ≤3.25mm)
Length	4-8M

1.4 Product (steel pipe) process flow:

Raw material (steel coil) → uncoiling → shearing and butt-welding → material accumulating → non-power leveling →mill-forming → high-frequency welding → removing burrs outside of weld seam → cooling

→ sizing → roughly straightening → fixed length cutting → finished pipe→ run-out table

2. Uncoiler

Structure type: Double-side 360ºrotary hydraulic-pressure expanding tight, which insure steel coil feeding alternatively and make steel strip go into accumulator freely.

Applicable range: 78-250mm steel strip width, 1.2-4.0mm thickness, Φ800-Φ1200mm steel coil O.D., Φ450-Φ550mm steel coil I.D., Max.2500kgs steel coil weight.

3. Process diagram

Pipe making machine ZG76