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HG63.5x4 Tube Mill Line

Summary: The mill is intended for manufacturing of round pipe of Φ19.05mm-Φ63.5mm with thickness of 1mm–4mm from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths. Finished product will be of round, square or rectangular pipe. The manufacturing process provides for the uses of coiled strip precut in required width sizes in slitting machine.

Technology:

Round to Square

Material:

carbon steel

Brand:

Teneng

Packaging:

Mechanical equipment is wrapped in plastic, while electrical components are packed in wooden boxes.

Machine color:

According to the customer's preferences

Payment Methods:

TT/ LC

Shipping Port:

XinGang port China

Terms:

EXW /FOB /CNF / CIF

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Product parameters

1 Steel Pipe Specification

Round Pipe diameter: Φ19.05–Φ63.5mm

Pipe Thickness: 1 – 4mm

Square Pipe: 15X15mm –50X50mm

Rectangle Pipe: 15X20mm –40X60mm

Pipe Thickness: 1 – 4mm

Pipe Length: 4-8M

2 Steel Strip Specification

2.1. Material: carbon steel

2.2 Strip steel:

Inner diameter: 480-510mm

Outer diameter: 1200-1800mm

Strip steel width: 60-200mm

Strip steel thickness: 1mm-4mm

The maximum weight: 3.0 tons

3. Line speed: 40~80M/min

technical flow of the production line

Feeding→→ Double-head un-coiler →→Strip-head Cutter and welder→→Accumulator →→Forming section（Flattening unit +Main driving unit +Forming mill +Guide stand +Welding unit +squeezing roll stand）→→ De-burr frame →→Cooling unit →→ Sizing and straightener →→Cold saw →→ Run out table

Hydraulic Double-head uncoiler

Briefing: Rotary type to change strip coils easily, with a pneumatic brake

Mandrel expansion by hydraulic

Manual double arms rotation

Pneumatic brake

Automatic Shearing & butt welding machine

Style: hydraulic shearing and TIG automatic welding;

Parameters:

- Width： ≤200mm

- Thickness: ≤4mm

Horizontal spiral accumulator (O.D.: 4.5m)

Low bracket: 1 set

Flattening unit: 1 set

Accumulator: 1 set

- Feeding speed: Max.200m/min

- Storing capacity: 800meter -1500 meter

High bracket: 1 set

Forming & sizing section

Top & bottom two-roll pinching, one positive seven-roll flattener, one pair of feeding vertical roll.

Solid state High frequency welder(GGP300KW)

- Nominal power： 300kW

- Rated DC power: Pd=360kW

- Rated DC voltage: UdN=450V

- Rated DC current: IdN=530A

- The whole efficiency: η≥85%

- Output power: Pout＞300kW

- Designed frequency: f=300~350kHz

- MOSFET inverter: 60kW×6

- Tank circuit output mode: no welding transformer output, secondary resonance

- With water-water cooling system for welder

Cold saw

Product parameters:

Raw Material	:carbon steel
Round Tube	: Φ19.05-63.5mm
Round Tube Thickness	: 1-4mm
Square Tube	: 15x15~50X50mm
Rectangle Tube	: 15X20~40X60mm
Sq & Rect. Tube Thickness	: 1-4mm
Pipe Length	: 4-8m
Length Tolerance	: ±2.0mm
Cutting burr height	: Max. 0.2mm
Saw Speed	: Max.80m/min

Rollers

1.Forming and sizing Rollers material

- Material: Cr12

- Hardness: 60 HRC +/-2

2 Squeezing roll material

- Material: H13

- Hardness: 50 HRC +/-3

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