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WF60 ERW pipe mill, Diameter of pipe: 25-80mm, wall thickness: 1.0-3.0mm, welding speed: 20-60m/min - details see: https://www.machineto.com/pipe-mill-10081191

Main Technical Parameters:

WF60 ERW high frequency pipe making machine

2	Main Technical parameters:
2.1	Raw material (steel coil)
a	Material of steel strip: Hot or cold-rolled low-carbon steel(ST-37), low alloy steel stripδb≤520MPa, δs≤345MPa
b	The width of steel strip: 78-251mm
c	The thickness of steel strip: 1.0-3.0m
d	Steel coil: I.D. : φ450-φ550mm, O.D.: φ800-φ1200mm, weight: ≤2000Kg
2.2	Pipe
a	Diamter of pipe:		φ25-80mm
b	Thickness of pipe:		1.0-3.0mm (Square pipe:1.0-2.5mm)
c	Welding speed:		30-80m/min
d	Main motor power:		132kW
e	High frequency welder power:		200kW
3	Product process flow:
	uncoiling → shearing and butt-welding → accumulator→ pinch and leveling→ roll-forming→high-frequency welding → deburring → cooling → sizing →straightening → fixed length cutting → run-out table

2. Main components

2.1 Uncoiler:

Structure type: Double-side 360º rotary manual expanding, which insure steel coil feeding alternatively and make steel strip go into accumulator freely.

2.2 Shearing and butt-welder:

Shear and butt-welder, which insure two-coil steel strips cutting tidily and then welding together and leveling weld seam.

2.3 Accumulator:

The steel strips stored in it shall be enough to ensure main machine to run continuously while welding two coiled strips.

(1). Structure: steel fabricated with automatic feeding and delivery system.

(2). Adjusting method: Manual spiral adjusting.

(3). Accumulating volume: 150-300m.

2.4 Roll forming, welding and sizing unit:

2.4.1 Pinch device:

Vertical guide roll: one pair of vertical guide roll at the entry side.

Leveling roller: 7 rollers which behind the guide roll are passively rotated for leveling strip steel to make steel strips go into forming device.

2.4.2 Roll forming device:

Roll-forming steel strip and control weld seam.

The specification:

Stand of roller quantity Diameter of horizontal roll’s shaft material

Horizontal roll stand 7 φ70 mm 40Cr

1.The Structure of horizontal roll stand like dragon gate.

2.The Structure of Vertical roll stand is box-type. Two pair of vertical guide roll.

3.The manner of changing rollers: pulls at the side

2.4.3 Welder (mechanical part)

Guide roll stand: one set (Be used for controlling direction of weld seam)

Extruding roll stand for welding: two sets (Be used for controlling weld seam to realize successful welding.)

diameter : φ50mm

2.4.4 Cooling device: length: 2200mm

2.4.5 Sizing device:

The specification of sizing device:

Stand of roller quantity Diameter of horizontal roll’s shaft material

Horizontal roll stand 5 φ70mm 40Cr

Vertical roll stand 5 φ40mm 45#

The request of sizing device as the request of forming device.

2.4.6 Straightening machine:

Usage: It is mainly used for straightening of finished pipe roughly online.

2.5 computer -controlled cutting saw.

Structure: fixed length computer-controlled cutting

Method of Control: AC

The maximum running speed of the vehicle: 80 m/min

Cutting diameter: φ25~φ80mm

Cutting thickness: 0-3.0mm

max cutting speed: 15times/min

Fixed length: 5-8m

The specification of the saw blade: φ450*4

Cutting motor: 18.5KW

(Equip with the computer-controlled tracking motor:11KW)

Pneumatic system: 0.4~0.7 Mpa