high frequency steel pipes automatic mill

The high frequency steel pipes automatic mill is specially used for producingΦ19-Φ63.5mm, δ0.8-2.5mm high-frequency straight seam welded pipe and corresponding square pipe and special-shaped pipe(δ≤2.0mm).

high frequency steel pipes automatic mill

The composition of equipment is from uncoiler to fixed length cutting saw. Rolling
speed can be adjusted correspondingly within suitable range of pipe diameter and
wall thickness.

Material:Hot rolled or cold rolled low carbon steel
Dimension range of processing steel pipe:
(1) O.D.: Φ19-Φ63.5mm
(2) Wall thickness: 0.8-2.5mm(square pipe and special-shaped pipeδ≤2.0mm)
(3) Length: 4-8m

Equipment Make-up
1. Un-coiler
2. Vertical Loop
3. Molding Set
4. Flying Saw
5. Output Rollway
6. Solid High-frequency 60 kW+ DC Drive

Product (steel pipe) process flow:
Raw material (steel coil) → uncoiling → shearing and butt-welding → material accumulating → non-power leveling →mill-forming → high-frequency welding → removing burrs outside of weld seam → cooling → sizing →
roughly straightening → fixed length cutting → run-out table

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steel tube production line

Shijiazhuang Great Wall Welded Pipe Equipment Co. Ltd supply high precision steel tube production line, the following information is for your quick reference.

steel tube production line

1.pipe O.D(round):25mm-127mm(Φ1.0~ Φ5.0inch)
2.Square pipe:20X20mm-100X100mm
3.Wall thickness:1.0-3.5mm
4.length:4-12m
5.Speed:0-70m/min
6.Main motor:185Kw
7.H.F welder:200Kw

Craft Flow:
uncoiling→shearing and butt welding→material accumulating→flattening→forming system
→high frequency induction welding machine→inside and outside burr removing frame→
water cooling system→sizing system→leveling system→speed testing→Turkish frame→
saw cutting→running out table

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steel pipes automatic mill

steel pipes automatic mill
We are a high and new technology enterprise specialized in design, development and manufacture of high frequency welded pipe line, ERW pipe mill line, precision pipe mill line, stainless steel pipe mill line, square and rectangular pipe mill line, cold roll forming equipment, slitting line, etc. Shijiazhuang Great Wall is the pioneer that has the key processing and internationally advanced technology of whole-set welded pipe mill. We are qualified ISO 9001:2000 Quality Management System company. 

Model Name--------------32 Stainless Steel Welded Pipe Mill
For Diameter------------Φ 50.8~φ 114mm (Round Pipe)
10x10 to 40x40mm (Square Tube)
For Thickness-----------0.8~3.5mm
VVVF--------------------30KW
Flying Sawing ----------7.5KW
Grinding Box Machine----3.7KW
Hardened Gear Drag------160: 1 Drag
Rotating spiral bevel gear box, gear modulus-------9 pcs
Machine Weight----------10000 Kg (Around)
Demension---------------12000*1500*1000mm (Around)
Warranty----------------One Year
Packaing----------------Normal Packaging

1	Uncoiler
2	Accumulator
3	Shearing and butt welding machine
4	Forming machine
5	Roller System of Forming
6	Seam Guide
7	High Frequency Induction Welding Machine
8	Roller System for Moving
9	Burr Removing Frame(Inside and outside)
10	Water cooling system
11	Sizing machine
12	Roller System of Leveling
13	Speed Testing Wheel
14	Turkish Frame
15	Auto flying saw controlled by Computer
16	Run-out table
17	Electric control Equipment18
18	High frequency welding machine

For more information,please visit http://www.greatwall-machinary.com/contact/

steel tube productuion line

steel tube productuion line

We produce steel tube productuion line，if you need our products,you can contact us.
Stainless Flexible corrugated metal gas water hose making machine
Stainless steel flexible corrugated tube production line
Corrugated Stainless steel flexible metal pipe machine
Annular Flexible metal conduit making machine for gas hose

Model no.	Diameter Range(mm)	Production speed	Bearing size
GB-DN20	Φ8-Φ20	2.5-3.5M/min	Φ55
GB-DN30	Φ21-Φ30	2.5-3.5M/min	Φ65
GB-DN50	Φ31-Φ50	2.5-3.5M/min	Φ80

The machine can be used for different applications as follows:
A: Annular metal hose making machine with mould
B: helical metal hose making machine with mould
C: tube welding machine for the size up to DN40 without hose forming machine
The machine can be used for gas hose, water hose, solar hose, heat exchanger and fire fighting/sprinkler hose manufacturing.
Size range: DN8 up to DN40
Wall thickness: 0.18-0.3mm
Production speed:2.5~3.5m/min
Strip thickness: 0.18-0.3mm
Material: sus304, 321 and 316L
The parameter of Flexible corrugated metal gas water hose making machine

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Welded Pipe Making Machine

Welded Pipe Making Machine
(1) Steel coil 
 (2)  Thickness of material: 0.8-3.0mm
 (3)  Width of material:63~238mm
 (4) Inside Diameter of coil: 450-550mm
 (5) Outside Diameter of coil: 800~1200mm
 (6) The range of pipe diameter :  Φ20-Φ76mm
 (7) The thickness of Pipe :0.8-2.0mm
 (8) The length :4m-8m

Welded Pipe Making Machine

Welded Pipe Making Machine Productiino Line work flow:


Slit Coil ---- Un-Coiler ---- Shearing And Butter Welder ---- Storage/ Accumulator ---- Forming ---- Welding ---- Cooling ---- Sizing ---- Cutting Saw ---- Run Out Table ---- Finishing ---- Pipe Collecting and Packaging

welded pipe equipment

We produce welded pipe equipment，if you need our products,you can contact us.
1.pipe O.D(round):8mm-25mm(Φ0.3~ Φ1.0inch) 
2.Square pipe:7X7mm-20X20mm  
3.Wall thickness:0.3-1.2mm  
4.length:4-12m   
5.Speed:100m/min 
6.Main motor:22Kw 
7.H.F welder:60Kw 

welded pipe equipment

welded pipe equipment Descriptions:

1.	Uncoiler
2.	Accumulator
3.	Shearing and butt welding machine
4.	Forming machine
5.	Roller System of Forming
6.	Seam Guide
7.	High Frequency Induction Welding Machine
8.	Roller System for Moving
9.	Burr Removing Frame(Inside and outside)
10.	Water cooling system
11.	Sizing machine
12.	Roller System of Leveling
13.	Speed Testing Wheel
14.	Turkish Frame
15.	Auto flying saw controlled by Computer
16.	Run-out table
17.	Electric control Equipment18
18	High frequency welding machine

For more information,please visit http://www.greatwall-machinary.com/

Welded Tube making machine

Welded Tube making machine Application: 
The machine can be used for different applications as follows:
A: Annular metal hose making machine with mould
B: helical metal hose making machine with mould
C: tube welding machine for the size up to DN50 without hose forming machine

No.	Size	Tube OD (mm)	Wall thickness (mm)	Hose ID (mm)	Hose OD (mm)	Pitch  distance (mm)	Width of the strip (mm)	Weight Kg/m
1	DN 8	10.3	0.18	8	11.3	2.7	31.8	0.15
2	DN10	12.3	0.18	10	13.5	2.9	38.1	0.16
3	DN12	15	0.18	12.3	16.3	3.2	46.6	0.17
4	DN15	18	0.2	15	21.6	4.5	56.3	0.21
5	DN16	20	0.2	16.2	21.3	4.5	62.2	0.28
6	DN20	23.5	0.25	20	25	4.5	73.0	0.38
7	DN25	30	0.3	25	31.5	4.5	93.3	0.42
8	DN32	39.5	0.3	33	41	4.5	123.2	0.48
7	DN50	55.7	0.35	50	56.7	6	173.2	0.54

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Welded Pipe Making Machine

Stainless steel welded pipe making machine
Stainless steel welded pipe making machine
Metal pipe welding machine
Stainless steel tube welding machine
Stainless steel pipe welding machine
Stainless steel pipe welding machine
Stainless steel pipe forming is designed to produce round tube diameter of 10-250mm .
Wall thickness: 0.15-0.8mm (stainless steel)
1.This kind of production line is mainly used for manufacturing welded pipes, especially for stainless steel pipe,carbon mild steel pipe,metal iron, copper,alumium steel pipe and so on.

Welded Pipe Making Machine

2. The finished pipe shape decided on tube mould.

3. Widely used in industry and decoration,such as:chemical,building,office and household furniture,stair handrail etc.

4. Our main product: industrial pipe making machine,decorative pipe making machine

For more information,please visit http://www.greatwall-machinary.com/About/

High frequency welded pipe equipment

High frequency welded pipe equipment is designed to make various shape pipes like square pipe, round pipe, oval pipe and other special shape pipes. The tube mill takes advantage of high frequency welding system and cold roll forming principle to make pipe from the thin sheet. The tube raw material could be various types like carbon steel, metal like Q235 and others.

High frequency welded pipe mill line

Welded pipe Mill Working Process:
{Steel Tape}→→ Single-arbor un-coiler →→Strip-head Cutter and welder→→ Spiral Accumulator→→Forming section(Flattening unit +Main driving unit +Forming unit +Guide unit +High frequency induction welding unit +squeeze roller)+ De-burr frame →→Cooling unit →→ Sizing unit and straightened →→Flying saw under computer-control →→ Run-out table→→straightening

Working principle:
For welding part, it makes full use of two sciences-high-frequency current Skin-Effect and Adjacency Effect to make the current concentrate on the edge, then the temperature will reach to the point of welding. Then we can make the sheet to pipe by rolling and make the edge melting to one.

Feature:
1.It supports many kinds of material like carbon steel, GI and others.h
2.One machine could make a large range of pipe sizes by changing mold.
3.One machine could be used to make square pipe, round pipe by changing mold.
4.High working efficiency but low energy consuming: the power is 200KW TNGP.
5.The pipe made by this kind of machine could be used in many areas like water tube, wire pipe and others.Steel Pipe Production Line

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API pipe mill line factory

Shijiazhuang Great Wall Welded Pipe Equipment Co. Ltd is a professional API pipe mill line factory, our customers are come from USA, Thailand, Malaysia, India, Indonesia, Iran, Uzbekistan, Pakistan, Kazakhstan, South Korea, Algeria, Ecuador, Mongolia and many other countries. we'd like to provide our best techinical support for our customers.

API pipe mill line 

Technical parameters of our API pipe mill line 

Mill speed: 0~60m/min

Forming method: FF forming            

Operation direction: to be confirmed

Center elevation: +1000mm

Output capacity : 100,000t per year

Installed capacity:  1900kW

Compressed air low rate: 10m3/min                                

Compressed air pressure: 0.7MPa

Mill service water flow : 30 m3/h

Water pool capacity: 120m3

Finished pipe diameter: φ101.60-φ273.00 mm

Finished pipe wall thickness: 4.0-12.5.0 mm

Finished pipe materials: Q235, 20#, low alloy steel (t≤12.5mm)

Mterials porperities: 215~500Mpa

Finished pipe cut-to-length: 5.5-12.0m

Cut-to-length accuracy: 0-6mm

Strip width: 310-900mm

Strip thickness: 4.0-12.5

Coil inner diameter: 610;700mm

Coil outer diameter: 1000-2000mm

Welcome you to come to shijiazhuang city and visit our factory, we look forward to establish long term business relationship with you.

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high frequency welded pipe equipment from Φ20-Φ508

This high frequency welded pipe equipment is specially used for producingΦ20-Φ80mm, δ1-4.0mm high-frequency straight seam welded pipe and corresponding square pipe. The composition of equipment is from uncoiler to fixed length cutting saw. Rolling speed can be according to suitable range of pipe diameter and wall thickness.

high frequency welded pipe equipment

Parameters
1 O.D of pipe: Φ20-Φ80mm
2 Wall thickness: 1.0-3.5mm (square pipe :1.2-3.0mm)    
3 Length: 4-8m
4 Milling speed: 60-70m/min
5 High-frequency equipment power: 250 KW (Solid state)
6 Voltage:380V/440V,50HZ

Main components
1 Uncoiler: 1 set
2 Shearing and butt-welder: 1 set
3 Accumulator: 1 set
4 Forming. Welding &sizing unit: 1 set
5 Computer-controlled tracking cutting saw: 1 set
6 Run-out table: 1 set
7 Solid-state high-frequency welder: 1 set

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φ140 ERW Pipe Mill Line

Shijiazhuang Great Wall Welded Pipe Equipment Co. Ltd is a professional ERW Pipe Mill Line factory. Our ERW pipe mill lines are divided into φ325,φ219,φ140,φ114,φ32576,φ50,φ32,φ25 model.

ERW Pipe Mill Line

Parameters of φ140 ERW pipe mill line :
Pipe Diameter: φ60~φ140mm
Pipe Thickness: 2~5mm
Pipe Materials: Q195,Q215,Q235
Welding Speed: 20~70M/Min

Advantage:
Easy adjustment, good weld seam quality, easy operation and maintenance, and rigid machine structure.

We can customize the mill line according to your special requirement, welcome to visit our factory!

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Computer based Flying Saw

Computer based Flying Saw
It is the mechanical equipment which used in continuously production, auto fixed ruler cutting steel pipes, is one of the important support device for weld pipe production line. It can cut pipes during static and motion status, can both cut round pipe and special pipe.

Computer based Flying Saw

Scale Precision:<±3.0mm
Maximal cutting Speed:   100m/min
Cutting Type: Pneumatic Cutting
Length of size :4~6m
Out diameter of saw blade:φ600
Motor of cutting machine:22KW
Tracking motor:15KW
Pneumatic system:0.4~0.7Mpa

Feature:
1. Easy and simple to handle
2. High precision
3. Low failure rate
4. Easy to maintain

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Thick sheet cut to length line

Thick sheet cut to length line

The thick sheet cut to length line is generally used for jobs like uncoiling, straightening, measuring, cross-cutting to length and stacking of various materials such as cold or hot rolling carbon steel, tinplate, stainless steel, and other kinds of metal with coated surfaces.

Features of thick sheet Cut to Length Line:

1. Our cut to length line uses a roll feeding, AC servo drive.

2. It has a fully digital length control system that ensures fast positioning with little error.

3. It has a hard chrome plated surface and is durable and abrasion resistant.

4. It is used together with a hydraulic shear or an air-clutch shear to carry out fast shearing and convenient clearance adjustment.

5. Our cut to length line is suitable for hot rolling carbon steel, tinplate, stainless steel, and other kinds of metals with coated surfaces.

Thick sheet cut to length line

Consist parts

1	Entry coil car	1 set
2	Uncoiler	1 set
3	Outboard support	1 set
4	Feeding table	1 set
5	Leveler	1 set
6	Loop table	1 set
7	Side guide	2 pairs
8	Servo feed roll	1 PC
9	Shear	1 PC
10	Conveyor belt	1 set
11	Stacker	1 set
12	Blower	1 set
13	Hydraulics	1 set
14	Electrics	1 set

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middle thick sheet slitting line

General introduction of middle thick sheet slitting line
The whole line of the steel strip slitting machine can do uncoiling, slitting and recoiling works. slit the steel coil into narrower coils with any needed widths. The whole line mainly includes coil loading car, uncoiler, coil guide, slitting machine, scrap winder, tension unit, recoiler, coil unloading car, hydraulic system and electrical control system, etc. It is mainly applied for processing cold/hot rolled carbon steel, silicon steel,stainless steel, and all the other kinds of metal materials with surface spreading.

Middle thick sheet slitting line specification
1. Material: Hot/cold rolled coil, etc
2. Thickness: 0.3-16mm
3. Width:100-2200mm
4. Inner diameter: 508mm
5. Max outer diameter: 1600mm
6. Capacity: 15T(depends on client's demand)

Main components of middle thick sheet slitting line
Coil loading car
Decoiler
Straightener
Coill guider
Slitter
Edge scrap recoilers
Pinch devi, tension unit, separating device
Recoiler
Coil unloading car
Hydraulic system and electrical control system

Production process of middle thick sheet slitting line
Feed car--Uncoiler--Cutting head and Straightening--Pinch machine--Hydraulic shears--Pair guide--Disc Shear--Edge wire winders--Pre-dosing device--Winding--Unloading

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Thick sheet slitting line

Thick sheet slitting line introduction
it can be used to cut into desirable width of rolling material through uncoiling, slitting, rewinding process. Applicable to process  for all types of metal materials special in cold-rolled and hot-rolled carbon steel, silicon steel, tinplate, stainless steel and coated material.
For the users who require high quality product , we would like to recommend  EPC automatic edge or in a material, which is convenient for feeding,  ensuring improve work efficiency, improving  cutting accuracy meanwhile protecting sheet. EPC can also choose automatic edge control, to ensure orderly winding degree, especially for wide material winding.

Main components
1.coil car
2.decoiler  
3.peeler entry table
4.Straightener.
5.Shearing machine  
6.loop table                                            
7.coil guide and pinch roll                    
8.Slitting machine
9.scrap winder (both sides)
10.Loop table
11.separator and tension table
12.Deflector roll and exit threading table
13.Recoiler
14.Over arm separator in the recoiler.
15.Exit coil car for recoiler
16.Hydraulic system
17.pneumatic system
18.electrical control system

Thick sheet slitting line

Feature
1. Highly degree of automation, simple and reliable.
2. Slitting machine interactive transposition, highly working efficiency.
3. Fast production line speed, self-matching line speed.

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High Speed Slitting Line

High Speed Slitting Line specification
This line is Used for steel plate coil to uncoiling, slitting, recoiling to required steel strips. This line apply to hot rolled carbon steel, tinplate, stainless steel and other different kinds of surface plated metal.
 Slitting line is used for steel plate coil to uncoiling, slitting, recoiling to required steel strips. This line apply to hot rolled carbon steel, tinplate, stainless steel and other different kinds of surface plated metal.
    For the user with higher requirement, uncoiling with automatic edge aligning or centering is preferable, which has the advantage of easy entering coil, high working efficiency, improving cutting precision and protecting plate as well. EPC automatic edge control can be adopted as well, which can guarantee recoiling in tidiness, especially for the wider recoiling
    This line is composed of entry coil car, uncoiler, feeding in device, leveler, head shearing device, loop pit, side guide, slitting device, scrap winder, tension unit, recoiling machine, unloading device.etc.

High Speed Slitting Line

Main Technical Parameter

Name\Model	2×1300	2×1600	3×1300	3×1600
Coil Thickness(mm)	0.3-2	0.3-2	0.5-3	0.5-3
Coil Width(mm)	600-1300	600-1600	600-1300	600-1600
Slitting Strips	2-20	2-20	2-15	2-15
Strip Width Precision(mm)	±0.1	±0.1	±0.15	±0.15
Line Speed(mm)	10-120	10-120	10-120	10-120
Coil Weight(T)	10	15	20	30
Coil I.D.(mm)	Ф508	Ф508	Ф508，Ф610	Ф508，Ф610
Recoiling I.D.(mm)	Ф508	Ф508	Ф508	Ф610
Main Shaft Dia.(mm)	Ф220	Ф240	Ф240	Ф240

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