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Pipes HG75 Steel Tube Mill Welded High Frequency

China Hebei Tengtian Welded Pipe Equipment Manufacturing Co.,Ltd. certification
China Hebei Tengtian Welded Pipe Equipment Manufacturing Co.,Ltd. certification
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Pipes HG75 Steel Tube Mill Welded High Frequency

Pipes HG75 Steel Tube Mill Welded High Frequency
Pipes HG75 Steel Tube Mill Welded High Frequency Pipes HG75 Steel Tube Mill Welded High Frequency

Large Image :  Pipes HG75 Steel Tube Mill Welded High Frequency

Product Details:
Place of Origin: Hebei
Brand Name: Tengtian
Certification: CE, ISO9001, BV
Model Number: HG75
Payment & Shipping Terms:
Minimum Order Quantity: 1 Set
Price: Negotiate
Packaging Details: Export waterproof and Seaworthy packing.
Delivery Time: 60 work days
Payment Terms: L/C, T/T
Supply Ability: 50 Sets/Year
Detailed Product Description
Yield Strength Of Raw Material: σs≤340Mpa Tensile Strength Of Raw Material: σb≤520 Mpa
Pipe Size Range: φ16-75mm Thickness: 0.7-2.5mm
Max. Production Speed: 20~80m/min Fixed Cutting Length: 4-12m
Warranty: One Year Welding Type: High Frequency Welding
High Light:

precision tube mill line


precision steel tube mill


odm steel tube mill

HGQ 76High-Frequency Welded Pipe Production Line

Ι .Machine General Introduction

Pipes HG75 Steel Tube Mill Welded High Frequency 0

it is designed to produce welded steel pipes ,include round pipe , squre pipe and deformed pipe.

Adopting roll pass design, the production line can manufacture welded steel pipes with good quality machining and high precision assembling.

Round pipe:φ16-76mm



Square pipe :20X20-60X60



II.Main Parameters and Specifications:

(1)Material Specifications:
Standard SPHC,SPHT-2,SS 400,SS440,SS490
Material Low carbon steel and low alloy constructional steel
Mechanical properties σb≤520Mpa,σs≤365MPa
Strip Width 47-240mm
Strip Thickness: 0.7-2.5mm
Inner Diameter of Coils Φ508mm
Outer Diameter of Coils Φ1300~φ1760mm
Coil Weight ≤3.5T
(2)Pipe Specification
Pipe Diameter

Round pipe:φ16-76mm Square pipe :20X20-60X60

Thickness:0.7-2.5mm 0.7-2.0mm

Length 6m
Pipe-cutting Precision 0-6mm
Forming Speed Max 80m/min (max size and thickness cannot up to max speed)
(3)The buyer should self-supply
Work shop 60x6m, H>5m(crane to ground)
Power Approx.450KW 380V/50Hz/3phases
Circulation Cooling Water(whole system)

Flow:20T/h~30 T/h

Pool Volume:30m3

Compressed Air

(whole system)


Pressure: 5-7kg/ cm2

Cable All cable outside of my machine, you buy after machine fix location.


III. Each Machine Parameters and Specifications:

(1) Uncoiler


Double expansion and cantilever mandrels


1. double expansion and cantilever mandrels.

2. Contains two main parts: main body and the fixed base.

3. Equipped with pneumatic system to satisfy the needs of expanding, contracting and braking of the mandrels.

4. Mandrel consists of four-bar linkages that could move radially at the same time.

5.The four-bar linkages in two groups are fitted on two shafts respectively. Powered by air cylinder, they expand and contract radially.

OD of coil Φ1300-1760mm
ID of coil Φ508mm
Width of strip 47-240mm
Thickness of strip 0.7-2.5mm
Weight of strip Max3.5T
Expansion Type hydraulic
Break Pneumatic driving
Rotate manual



(2)Automatic Shear And Welder



Automatis shear and welder

It is used to cut the irregular ends of the strips and then connect the strips by welding. So it can let the line runing without stop when the before coil finish


Strip width 47-240mm
Welding thickness 0.7-2.5mm
Cutting Type Automatic shear
Welding Mode Automatic weld
Pneumatic pressure 0.5MPa
Working Cycle Max.300 seconds




(3)Spiral accumulator



  • This unit is main include in press& carry material device, accumulator assemble, carry off material unit, electric control unit.
  • It is main include frame, electric motor, brake unit, circling direction transfer power axle of the reduce velocity, press & carry roll, pressure air system of guide roll, inspected velocity unit; it can supply the strip steel to accumulator and the mean times it will transfer the carry velocity information to electric control system, when we demand stop carry the material to this unit, it will stop roll to the electric motor and press& carry material roll by the break, and also could adjust the velocity to carry electric motor and the unit carry material velocity.
  • Accumulator frame assemble: include the electric motor, frame , inner circle roll, out circle roll and pressure roll. It can be used to storage the strip steel material from press& carry unit and it could be draw from the center send-off material roll.
  • Send-off material device: include frame, guide direction rolls, guide out roll of high or lower place. It can carry the strip steel to shape system and send the carry out material velocity information to electric control device
working style: change circle carry material going velocity Vmax=240m/min

More material

No strike

Pinch form



steel coil thickness 0.7-2.5mm diameter 4.2m
width 47-240mm storage area 3.5 m2
electric motor power of the press & carry AC 11KW
the electric motor of the accumulator frame AC 22KW


(4)Forming And Sizing Machine


Forming & Sizing Mill adopts roller type forming principle and high-frequency induction welding. The strip is fed into the forming machine by the feeding device in the mill and the forming roller continuously rotate and press the strip into the required shape. Due to the skin and the kindred effect, the high-frequency current is concentrated on the weld joint that is heated rapidly and reaches the welding temperature. The tube seam is welded under the pressure of squeeze rollers. The finished welded tube with required size can obtained after the cooling, sizing and primary straightening.
Forming Pipe OD.

Round pipe:φ16-76mm


Square pipe :20X20-60X60


Forming speed 30-80m/min
Number. of forming stands, horizontal 7
Number. of forming stands, vertical 9
No. of sizing stands, horizontal 5
Number. of sizing stands, vertical 5
Turks Head 2sets
Shaft dia. and material of horizontal roll stand Φ70mm, Material 40Cr
Shaft dia. and Material of vertical roll stand Φ40mm, Material 40Cr
Bur Scraping Cutter 2 Sets
Main motor 160kw





(5) Computor cutting saw

Cutting Saw machine is used to precisely cut the pipe to length automatically under the condition that the pipe continuously delivered from the mill at high speed.

Diameter of pipe

Round pipe:16-76mm


Squre pipe:20x20-60x60mm


Fixed Cutting length 4~12m
Cutting Accuracy 0~6mm
Saw blade cutting motor AC15kW
Carriage driving motor DC22kW
Cutting Speed Max120m/min


(6)Run out table




1.The finished pipes run along the Roll Table and to be automatically moved onto the Bench. Then simple Packing Machine packs the pipes in hexagon shape.


2.The simple packing machine contains container and pneumatically driven alignment equipment.


3. Motor of Roll Bench: 3KW

4. Two direction down load pipe

5. With frequency converter to control running speed.



(8)200 Kw Hifrequency welder

  • All in one model
  • Paralleling type

⑴ Rated output power: 200kW

⑵ Rated DC voltage: UdN=235V

⑶ Rated DC current: 1000A

⑷ Out frequency: f=350-420kHz

⑸ Total efficiency: η≈90%

⑹ Resonance form: Compound resonance

⑺ Tank output form: No welding transformer output.

⑻ Ripple Coefficient: 0.5%

⑼ Welding mode: Induction welding

⑽ Power distribution capacity: 260kVA

⑾ Input voltage: Three phase 380V/50Hz,3 phase 4 wire system

⑿ Rated input current: I=379A

1.2 Cooling System of Soft Water (Air-Water Cooling System)

⑴ Working water pressure: 0.32Mpa

⑵ Cooling water flow: 25m3

⑶ Reference cooling capacity: 60kW

⑷ Standard configuration (mm):2200×1250×2100



Contact Details
Hebei Tengtian Welded Pipe Equipment Manufacturing Co.,Ltd.

Contact Person: Ms.Linda

Tel: +8618233100172

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