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Home / Products / High Precision High-Frequency ERW Tube Mill line / HG25 High Precision HF Tube Mill Line
  • HG25 High Precision HF Tube Mill Line
  • HG25 High Precision HF Tube Mill Line
  • HG25 High Precision HF Tube Mill Line
  • HG25 High Precision HF Tube Mill Line
  • HG25 High Precision HF Tube Mill Line
  • HG25 High Precision HF Tube Mill Line

HG25 High Precision HF Tube Mill Line

The main technical performance and detailed description of the production line

Machine model Production range Wall thickness range Milling speed High-frequency power
HG25 Φ8~Φ32 mm δ0.4~1.3 mm 20~120 100KW
□6×6~25×25 □δ≤1.0mm
PREV: HG50 ERW Tube Mill Line Next: HG16 High Precision Pipe Making Machine

1. Workshop requirements

Item Parameter Remarks
Feed direction Left or right entry (depends on the customer's workshop process layout) Facing the equipment, the direction of raw material entry
Total power of equipment Approximately 180KW
Power supply voltage standard 380V/50HZ; Three-phase four-wire system Low voltage distribution cabinet, cables, customer self-provided
Equipment area covered L30-35M×W 4.5M According to the equipment layout
The high-frequency welding machine area is covered L6M×W 3M×H 2.8M
Water supply (recycled) One cooling pool: 20m³; One set of high-pressure pumps. Alternatively, the supplier can provide the buyer with factory drawings, and based on the drawings, create a waterway layout plan. The customer self-provides a water pool, water pump, plumbing system, and cooling tower
Air supply Air compressor: one set 1.6m³for common steel pipe;if Galvanized pipe need 3.5m³ The customer self-provides an air compressor, air storage tank, and pipeline
Lifting equipment Aircrane 5~10Tons: two sets The customer self-provides
Normal consumable parts （1）Scraper knives
（2）Saw blade
（3）Ferrite
（4）Induction coil(Copper tube, insulated tube)


Production process

Raw material (steel strip) → uncoiling → shearing and end welding → material accumulating → non-power leveling → mill-forming → high-frequency welding → removing burrs outside of weld seam → cooling → sizing → roughly straightening → fixed length cutting → finishing tube→pack


Technical specification(Pictures only for reference)

1、Double side hydraulic uncoiler
Function The function of this unit is to dismantle the entire coil of steel strip and provide the necessary raw materials for the forming machine
Loading Weight Max. 1.5 Tons / 
cone heads Double cone head, Hydraulic motor remote control automatic rotation,n and material replacement
Conehead structure type combination of sliders, sturdy and stable
Expand type Hydraulic expanding
Cone heads material Spindle: 42CrMo, forging, overall tempering; 
Arc plate: 45# overall tempering 
Wedge slider: 45# steel tempered
Brake type Pneumatic type
Material blocking device Manual mode

2、Shearing and butt-welder

(Note: Only those with a thickness of 0.5mm or more can be used)
Function Its function is shearing and aligning the head and the end of two different strips, cutting off irregular parts, and welding two strips together so that the line can work continuously
 Shearing type Pneumatic shearing, material: Cr12MoV
Clamping type Pneumatic clamping
Welding type TIG automatic welding

3.1、Vertical - type Accumulator(The width range can be electrically adjusted with a chain)
 Function It is used for accumulating enough steel strips to ensure the machine runs continuously
Outside size Length 5.5 m
Feeding motor 3KW (AC motor with variable frequency speed regulation)
Feeding speed MAX 200m/min
Storage capacity 150～300m

 

3.2、 Horizontal accumulator
(3.1 and 3.2 to be selected by the customer)
Function It is used for accumulating enough steel strips to ensure the machine runs continuously
Outside size O.D. 3.0m
Feeding motor 11 KW (AC motor with variable frequency speed regulation)
Storage motor 15 KW (AC motor with variable frequency speed regulation)
Feeding speed MAX200m/min

4、Forming and sizing main machine (eight front, six rear, integral bed) Main machine
Unit arrangement：
Forming：2 rollers leveling→V→7 rollers leveling→V→1 H→1 V→2 H→2 V→3H →3V→4H→4 V→5 H→5 V→6H→6 V→7 H→7V→8H→8V
Guiding and 2 or 3 rollers Extrude → Scraper → Polishing→Water Cooling
Sizing：1 V→1 H→2 V→2 H→3 V→3 H→4 V→4 H→5 V→5 H→6V→6 H→speed measurement→Straightening 1
1）Feeding and Leveling device
Function
with 7 rolls leveling device to enter the forming machine steadily
Structure
1roll Anti jumping, 2 rolls Guiding vertical, 7 rolls leveling

 

2）Forming machine
Function It can gradually squeeze steel strips into tube blanks by forming rolls, and send to the welding machine,
Forming type W form made, Double radius hole type
Horizontal-roll stands 8stands
Vertical-roll stand 8 stands

Horizontal-roll stands

Structure
Double column gantry frame, with the operating end frame capable of side roll replacement
Material of horizontal stands Precision cast steel parts
Horizontal shaft diameter Φ40mm
Horizontal shaft material 42CrMo, normalized HB260~290, surface high-frequency quenching HRC50~55 
Tempering Surface quenching
Options: The Horizontal-roll stands device adopts a worm gear synchronous adjustment and a ruler, which can accurately and synchronously adjust the height of the slider on the flat roller, making it easier and more precise to change different sizes. （extra price）

Vertical-roll stand
Structure Double pivot structure, strengthened and fastened with pull plates; The rolling mill is assembled on the roller shaft through bearings, making it easy to change the rollers.
Material of vertical stands QT400The slider is slot type (high precision, not easily damaged)
Vertical shaft diameter Φ25mm
Vertical shaft material 40Cr, normalized HB260~290, surface high-frequency quenching HRC50~55
Tempering Surface quenching
Roller adjustment method
The center and position of the two roller shafts are adjusted by adjusting the screw sleeve, and the adjusting nut is a copper nut; The height of the vertical roller is fine-tuned by adjusting the nut.

 

gearbox
Quantity 4sets
Box material QT400
Transmission type Spiral bevel gear transmission
Spiral bevel gear material

20CrMnTi

Forging, tooth surface quenching treatment
Gear shaft material 40Cr, normalized HB260~290, surface high-frequency quenching HRC50~55
Tempering Surface quenching

3) welding section 
①Guiding
Function The function of this unit is to transmit the tube blank to the extruding device
Structure 2-roll type, adjustable horizontally and vertically, and can rotate at a certain angle. Horizontal and vertical adjustments are made using screw rods, while frame rotation adjustments are made using worm gears.
shaft material 40Cr, normalized HB260~290, surface high-frequency quenching HRC50~55
Tempering Surface quenching
②Squeezing device (Two or Three roller type SQ)
Function  the welding seam will closed
Structure Two or Three rollers type SQ, Double pivot structure, strengthened fastening with pull plate
shaft material 40Cr, normalized HB260~290, surface high-frequency quenching HRC50~55
Tempering Surface quenching
③Scraper
Function use a scraper knife to remove the outer welding bead, welding seam will smooth and clear.
Structure Screw adjustment, quick adjustable knife
④Polishing
Function Stabilizing steel pipes and flattening external burrs and uneven parts
shaft material 40Cr, normalized HB260~290, surface high-frequency quenching HRC50~55Tempering Surface quenching
4) Cooling tank
Function adopt water tank spraying type to make sure the tube blank is cooling enough.
Structure Box-type welded structure, the upper water pipe is made into a spray shape to spray and cool the steel pipe.



5

Sizing machine
Function
The function of the four-roll type pushing square device is to online deform the precision-shaped steel pipe into a square spacing pipe and roughly straighten it to achieve ideal geometric dimensions and flatness.
①Horizontal stand 6 sets, the same as forming a machine
②Vertical-roll stand 6 sets, same as forming machine

3）Straightening device (See the last Turkish - heads above)
Type of Straightening device
Turkish - heads, 360° rotatable
Structure
2/4 - roll frame, with rolling rolls distributed on the same surface, adjustable horizontally and vertically, and capable of rotating at a certain angle. Horizontal and vertical adjustments are made using screw rods, while frame rotation adjustments are made using worm gears.
Shaft diameter Φ25mm
Shaft material 40Cr, normalized HB260~290, surface high-frequency quenching HRC50~55
Tempering Surface quenching

 

6) Main driven device
Drive Way
Motor→Reducer→Gear box→Universal shafts→Horizontal shafts
Main motor model, power 45KW DC motor，1  set；
Reducer ZLY160 ，1  set；
Gearbox Forming part：4  sets；  Sizing part：3 sets
Spiral umbrella gear transmission box, with high load-bearing capacity, high transmission efficiency, and long service life.

Spiral umbrella gear material：20CrMnTi， Tempering Surface quenching。Depth of carburized layer1.1～1.5mm， surface quenching hardness HRC55～60。

 

5、Roller
Roll Material： Cr12， Heat treatment hardness: HRC58 - 62. Keyway wire cutting and CNC machining ensure hole shape accuracy, and working surface polishing.
extrude roll Material： H13， Heat treatment hardness: HRC50 - 53. Keyway wire cutting, profile CNC lathe, working surface polishing.
Roller pad Material：45# steel.

 

6.1、Hot cutting saw
Structure PLC, Ordinary saw blade cutting
（1） Maximum cutting diameter Φ38mm
（2） maximum cutting thickness Δ1.5mm
（3）cutting length and precision L=3～8m,≤±3 mm
（4）drive type Pneumatic saw (enlarged and reinforced saw head)
（5）size of saw blade Φ300mm×Φ50mm×1.5/2.0mm
（6）driving motor 15 KW AC motor
（7）cutting motor 7.5 KW AC motor
（8）Clamp Air Clamp

 

6.2、Cold cutting saw
Structure Servo controlled cutting
（1）、Maximum cutting diameter Φ38mm
（2）、maximum cutting thickness Δ1.5mm
（3）、 cutting length and precision L=4～8m,≤±2 mm
（4）、drive type Servo motor/ball screw/linear guide
（5）、size of saw blade Φ350mm-HSS high-speed steel
（6）、driving motor 11 KW Yaskawa Servo motor
（7）、cutting motor 7.5 KW AC motor
（8）Feeding motor 1.8 KW Yaskawa Servo motor
（9）、speed of cutting 20-120 m/min

 

7、Conveyor table
Function
The function is to accelerate the separation of steel pipes cut to fixed lengths and transport them to the packaging area
Transmission motor 2.2 KW 
AC motor with variable frequency speed regulation
Quantity of feeding rollers 9 sets
Length 9 M

 

8、150KW High-frequency welding machine
Introduction The entire equipment is controlled by a PLC system to achieve comprehensive interlocking control and fault diagnosis functions, and the operating status of the equipment is monitored through an LCD screen
Composition RECTIFIER CABINET
INVERTER CABINET
COOLING DEVICE
OPERATING TABLE
TRANSFORMER
DC SPEED ADJUSTOR

 

9、Zinc spraying machine (customer option)
Overview The arc burns at both ends of the wire as a heat source, causing the wire to melt. At the same time, compressed air atomizes the melted wire into gas droplets, which are then sprayed at high speed onto the surface of the pre-treated workpiece. Form a complete coating.
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Why Us
Yangzhou SINOFORM Machinery Co., Ltd.
The company is located in the Industrial Concentration Zone of Dayi Town, Yangzhou City, Jiangsu Province. It was registered in January 2010 and is a professional manufacturer of welded pipe units and their supporting rolling mill molds. With more than ten years of history, it is a well-known enterprise in the welded pipe industry.

As a professional China HG25 High Precision HF Tube Mill Line suppliers and HG25 High Precision HF Tube Mill Line company, Our company has advanced processing equipment that is ahead of domestic peers. We specialize in the production and sales of high-frequency welded pipe equipment, laser welded pipe equipment, cold-formed steel equipment, rolling mill molds, etc. We are a professional manufacturer that integrates scientific research, technology, production, sales, and service.

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