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Low Alloy Steel Tube Mill Line Steel Pipe Manufacturing Machine

Low Alloy Steel Tube Mill Line Steel Pipe Manufacturing Machine

Brand Name : Tailian
Model Number : ZG219
Place of Origin : China
MOQ : 1set
Price : Negotiation
Payment Terms : L/C, T/T, Western Union, MoneyGram
Supply Ability : 50 sets per month
Delivery Time : 120days
Packaging Details : Export Standard Packing
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Brief introduction and quotation of

ZG219 pipe making machine

Description of product

  1. Summary:

This equipment is specially used for producingΦ114-Φ219mm, δ2.0-6.5mm high-frequency straight seam welded pipe and corresponding square pipe and special-shaped pipe(δ≤6.5mm). 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.

  1. Applicable material:
  1. Hot or cold-rolled steel strip (As per GB708-88 or GB1591-88)
  2. Material: Low-carbon steel, low alloy steelδs≤345Mpa,δb≤610Mpa
  3. The thickness of steel strip: 2.0-6.5mm (As per GB708-88)
  4. The width of steel strip: 360-690mm
  5. I.D. of steel coil: Φ600-Φ800mm
  6. O.D. of steel coil: Φmax.=1600mm
  7. Maximum weight coil: 10000kgs
    1. Dimension range of processing steel pipe:
  1. O.D.: Φ114-Φ219mm (4.5"~8")
  2. Wall thickness:2.0-6.5mm(square pipe and special-shaped pipeδ≤6.0mm)
  3. Square pipe: 90㎜×90㎜~175㎜×175㎜
  4. Rectangle pipe: 120×60㎜~150×200㎜
  5. Length: 5-12m

1.4 Solid-state high-frequency welder: 500 KW

1.5Milling speed: 20-40m/min Total capability: Approx. 2000KW

1.6Compressed air: Flow volume: 4000L/min pressure: 0.5~0.7Mpa

1.7Water supply:

  1. Flow volume of cooling water: <30t/h (circulating water)
  2. Water volume for high-frequency: 45t/h (circulating water)
  3. Pressure: ≥0.25Mpa

2. Product (steel pipe) process flow:

Raw material (steel coil) □uncoiling □Flattening □leveling□shearing and butt-welding □ material accumulating□ mill-forming □ high-frequency welding □ removing burrs outside of weld seam □ cooling □ sizing □ roughly straightening □ fixed length cutting □ finished pipe □ run-out table

  1. Main equipments of production line:

2.1Material treating equipment in entrance:



--leveling machine

--Shearing and butt-welding machine

--Horizontal-type sprial accumulator

2.2 Forming, welding and sizing unit:

--Steel-strip forming

--Welding table and burrs- removing device

-- Solid-state high-frequency welder

--Sizing unit

-- Computer-controlled tracking cutting saw

--Finished-pipe passing conveyor

--Electric controlling system for full-line

  1. Uncoiler:

Structure type: Double-drill hydraulic-pressure expanding tightly, which insure steel coil feeding alternatively and make steel strip go into accumulator freely.

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

Φmax.=1600mm steel coil O.D., Φ600-Φ800mm steel coil I.D., Max.10000kgs steel coil weight, 4KW motor power, 7Mpa maximum hydraulic pressure.

  1. Flattening device:

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

Feeding material speed: 29M/min Motor power: 4KW

2.3Levering device:

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

Working speed: 20M/min Motor power: 5.5KW

2.4Shearing and butt-welding machine, which insure two coiled steel strips shearing tidily and then welding together and leveling weld seam.

Applicable range: 360-690mm steel strip width, 2.0-6.0mm thickness,

Welding speed: 1M/min Hydraulic pressure: 0.4Mpa

  1. Horizontal-type accumulator:

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

(2)Structure: Horizontal-type structure with automatic feeding and delivery system.

(3)Feeding speed: 100~120m/min

(4) Feeding motor: DC75KW

(5) Drive motor: DC75KW

  1. Forming, welding and sizing unit:
  1. Feeding & leveling device:
    1. Type: 9 rolls are passively leveled for leveling strip steel to make steel strips go into forming device.
    2. Guiding roll: Two pair
  2. Forming device:

Mainly roughly mill-forming steel strip and controlling weld seam.

A. Horizontal roll stand:

(a)Quantity: 7

(b)Structure: ZG45 Cast steel (annealing treatment), double housing, changing rolls in the side

(c)Diameter of horizontal roll’s shaft: Φ120mm,

Material: 40 Cr(quenching treatment)

B. Vertical roll stand:

(a)Quantity: 9(Vertical roll stands group)

(b)Type: Passive rotation

(c)Diameter of vertical roll’s shaft: Φ80mm

Material: 40 Cr (quenching treatment)

Adjusting method: Manual single-spiral adjusting.

C.Drive gearbox branch:

(a)Quantity: 7

(b)Structure: Spiral bevel gear, cylindrical gear

(c)Material: casing: QT50, gear: 20CrMnTi and 40Cr, input and output shaft: 40Cr

(d)Drive transmission: 14 sets of Jeep Auto 4A-5A universal transmission shaft

D. Two sets of bed for installation

(3) Guiding, extruding and welding, scraping device:

  1. One set of guide roll stand for controlling direction of weld seam to make pipe seam flatly and straightly go into extruding rolls.
  2. One set of extruding roll stand for controlling weld seam to realize successful welding.
  3. Two sets of scraper frame for scraping outside weld seam
  4. One set of bed for installation

(4)One set of water cooling tank.

Cooling method: water gutter with shower

The length of water gutter: 6M

(5)Sizing device:

a. Mainly fine shaping pipe after welding and controlling size accuracy. Each 5 sets of horizontal roll stand, vertical roll stand and drive gearbox branch, 10 sets of universal shaft (structure same as forming device)

b. Roughly straightening machine:

  1. Usage: It is mainly used for straightening of finished pipe roughly online.
  2. Type: Turk’s head type 4 rolls two sets
  3. Two sets of installation bed.

(6)Main driving system: The main unit is connected with main reduce by major motor and transmits power to gearbox branches, then gearbox branches drive upper and down shafts on horizontal roll frame.

  1. Major motor: Z4 series, DC 250KW two sets
  2. Main reducer: ZLY1000 two sets

2.5 Computer-controlled tracking cutting saw:

(1) Cutting method: Computer-controlled tracking and automatic cutting

(2) Cutting thickness: δ2.0-6.5mm

(3) Cutting O.D.: Φ114-Φ219mm

(4) Saw blade size: Φ1000×Φ120

(5) Rotating speed: 1820rpm

(6)Cutting time: 6~10times/min

(7)Cutting tolerance: ≤3mm

(8)Cutting motor: 90KW

(9)STD controlling fixing length synchronously

Finished pipe passing conveyor: (Run-out table)

Welded frame structure equipped with sizing signal system.

Hydraulic-controlling system (all needed hydraulic station)

2.9 Solid-state high-frequency electric: 500KW,

applicable power supply 380V/220V 50HZ

3. Main equipments and price:

(1) Hydraulic-pressure Uncoiler

(2) Flattening & Leveling machine

(3)Shearing and butt-welding machine

(4) Horizontal-type accumulator

(5) Forming welding and sizing device

(6) Computer-controlled tracking cutting saw

(7) Run-out table

(8) Hydraulic station

(9)Two sets of DC motor speed adjustor and overall controller

4. Note:

(1) The high-frequency welder will be prepared by the buyer.

(2) Rolls (moulds) for welded pipe will be ordered additionally according to type and specification provided by customer.

Material: Cr12 (as per N.W.of finished products)

(3) Exclude range in the supply production:

-- Wires for connecting each part of machine unit;

-- Production spot water supply system and compressed air;

-- Cooling water pool for pipe-making machine and H.F. welder

-- Related technique data of machine unit and electric, the principle diagram of machine unit will accompany with machine unit to be delivered.

(4) When signing sales contract, we will discuss the following expense: Packing, transportation and need three persons, the buyer should charge of Visa, return ticket, food and accommodation abroad and Need four persons

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