Cold Roll Forming Line

Cold Roll Forming Line description
This equipment is specially used for producing Φ19-Φ76mm, 0.8-3.0mm high frequency straight seam welded tube and corresponding square tube and special-shaped tube (δ≤2.5mm). The composition of equipment is from uncoiler to fixed length cutting saw. Rolling speed can be adjusted correspondingly within suitable range of tube diameter and wall thickness.

1.Applicable material:
(1) Hot or cold-rolled steel strip
(2) Material: Low-carbon steel, low alloy steel
(3) The thickness of steel strip: 0.8-3.0mm
(4) The width of steel strip: 60-240mm
(5) I.D. of steel coil: Φ450-Φ550mm
(6) O.D. of steel coil: Φ800-Φ1200mm
(7) Maximum weight coil: 2500kgs

2.Dimension range of processing steel tube:
(1) O.D.: 19-76mm
(2) Wall thickness: 0.8-3.0mm (square tube and special-shaped tube δ≤2.5mm)
(3) Length: 4-8M

3.Milling speed: 20-100M/min(choose different speed as per different pipe diameter and thickness)

4.Product (steel tube) process flow:
Raw material (steel coil) → 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

Welded Pipe Mill Line

Welded Pipe Mill Line description
Welded Pipe Mill Line is specially designed to produce the industrial stainless pipe and titanium pipe, which can be widely applied in aviation, aerospace, nuclear power, power stations, oil refining, seawater desalination and other high-end pipe making field. Great Wall brings the advanced technology from Japan and hammer out one perfect manufacturing process and layout rational for forming, sizing, lubricating, welding, heat treatment, cooling, cleaning to make up defects of the original making titanium pipe in working process, which reduces distortion and scratching of the pipes.
This production line needs high manufacturing and assembly precision. So we adopt high precision numerical control machine to process all the mechanical parts of the pipe mill. The forming & sizing machine is designed with the function of fast change roller & stand and adjustment by screen show, the line utilizes Siemens PLC control System, which has improved a lot the good productive rate and makes the line run steadily.

Main technical parameters 

Decoliler

coil inner diameter:450-550mm coil max width:300mm 3.max carrying capacity: 1500kg Usage:It is used to support the steel coil and uncoil it in a turnable way. Passive uncoil pulled by roll forming system

Leveling system:

Usage:Put the raw material(steel plate) through the beach to manufacture and process,it can guarantee that the products are neat, parallel and everything is uniformity.

Main roller system:

1.Shaft material  &  rollers material & shaft diameter45# steel adjustable treatment; 45# steel, polished, plate of chrome 0.05mm;  60mm 2. power: 101kw 3. Transport;  Motor;    chain drive 4. Forming speed;   20m/min Usage: In order to keep the product shape and precision, adopts welded sheet structure, motor reducer drive, chain transmission,roller was chromed which can keep the molding plate surface smooth and not easy to be marked when it is being stamped.

Material: blade, puncher and mold material: Cr12 steel with quenched treated 60-62

Shearing system

Cutting system: advanced hydraulic drive, automatic cutting after  forming, no distorting or wasting, high level safety factor.   It adopts the hydraulic drive and automatic location to decide the dimension and cut the target products. Material of blades: Cr12 quenched Power supply : hydraulic power Components:It contains one set of blade, one hydraulic tank and one cutter machine.  

ERW Pipe Mill Line

ERW Pipe Mill Line Specifications


Layout flow:
Strip material → decoiler → shear and welder → accumulator → forming and sizing machine → flying saw → packing
Moreover, include: electric control system, high frequency welder.

Capacity:
1,Pipe ID:8mm-32mm
2,Thickness:0.4mm-1.5mm
3,Speed:90m/min

Double-head uncoiler
Briefing: Rotary type to change coils easily with a pneumatic brake
Parameters:
(1)The max. weight of coil:700kg-800kg
(2)The inside diameter of coil:300-350mm
(3)The max. outside diameter of coil :1200mm
(4)The max .width of coil: 120mm

Main drive
1.The main motor is driven by model Z4-180-11,37kw DC motor
2.Model ZLY160 speed reducer ,the ratio is 5.4:1
3. Imported OL DC control device to drag

Material collecting cage
1.Material:made of angle and channel iron
2.feeding speed : ≥200m/min
3.Collecting capacity : ≥400m
Width adjustment
Range : 22-110mm

Rolls for collecting material
1.Material: Gcr15
2.Feeding rolls 115mm,2pieces
3.Motor: 2.2kw ,1set

Computer-controlled flying saw
A.Power of automatic controller: 7.5kw
B.Automatic tracking machine
1.The max .diameter to be cut :Φ35mm
2.The range of cutting length :4m-7m
3.The max. wall thickness to be cut :2.0mm
C. Type : round metal saw blade:Φ300mm×Φ30mm×3.0mm
D. Power of the saw: 4kw
E. Accuracy of the cutting length :within±0.3mm

Discharging table
Conveyed on the rolling way ,reversed pneumatically

High-frequency
1.Model:GP100-0.6-H
2.Input power: 3P,380V,50HZ
3.Output power:100kw
4.Control mode of output power :regulated by microprocessor
5.High voltage rectifier: 15A
6.High voltage transformer:3,380V,180KVA
7.Electronic tube :FU-911S
8.Transformer of the electronic tube shaking :8V-AC
9.Anode hydraulic pipe of electronic tube:Polythenereinforcing tube
10.Capacitor : CCG81-1000P-20KV

Φ32 High Frequency Welded Pipe Equipment

Φ32 High Frequency Welded Pipe Equipmenti introduction
The Φ32 High Frequency Welded Pipe Equipment is the main equipment in the high frequency welded pipe production line. It can be divided into different types according to the diameter and the wall thickness of the pipe. The mill can produce circular pipe, square and rectangular pipe and special pipe using low carbon steel & alloy steel.

The specific process flow is:
Steel strips are first fed into the machine then are shaped into pipe blanks by rollers.
Then, under skin and proximity effects of high frequency electric current, induced electricity is concentrated onto the bonding surface of the pipe profile fringe.
The heated up pipe profile fringe is quickly moved to the welding temperature and finished welding under the squeeze roller's pressure.
After cooling, sizing and broad straightening,  the steel pipe of needed specification is achieved.
Our products such as roll forming unit, FFX forming unit, cage forming unit can produce X80 and J55 API petroleum casing pipes and petroleum and gas pipes, which conform to the standard of API-5L, API-5CT.
This unit can also produce special pipes for air cooling condenser used by electric power plants or steel mills.

Parameters:
Diameter: ф12-ф32mm and correspondent size square and rectangular pipe
Wall thickness:  0.5-2.5mm
Steel pipe material: бb≤580MPa  бs≤380MPa  Mild steel & low alloy steel
Welding speed: 20-100m/min
Main motor power: 55Kw
High frequency equipments: 100Kw or 200Kw

Equipment composition:
The Φ32 High Frequency Pipe Welding Equipment  consists of an uncoiling machine, cutter & butt welder,Storing Loop, forming and sizing unit, Computer flying saw, straightener, End milling machine, hydrostatic testing machine, charge table, sack & bale machine, high frequency DC drag, product line electric appliance.

φ325 ERW Pipe Mill Line

φ325 ERW Pipe Mill Line description

Layout flow:
Strip material → decoiler → shear and welder → accumulator → forming and sizing machine → flying saw → packing
Moreover, include: electric control system, high frequency welder.

Specifications:
Material to be processed: Carbon Steel, Cold Hot Rolled pre slit strip coils of weld able grade with max. 0.2% carbon
Type of Production: Round Tubes, Square, Square and Rectangular Hollow Sections
Round Tube Outside Diameter: Min 114, Max 273mm
Square Hollow Section: Min 130 x130, Max 215 x 215 mm
Rectangular Hollow Section: Min 80x 100, Max140x 200 mm
Tube Thickness: Min 3.0mm Max 10.0 mm (X70≤8mm)
Forming Line Speed: Max 45m/min
(Square and Rectangular Hollow Shapes are produced at lower speeds depending on side to wall thickness ratio)
Tube Cut Length: Min 4 Max 12 meter
Length Accuracy: ± 3mm

1200X12.5 Cold Roll Forming Line

1200X12.5 Cold Roll Forming Line Description

The LW1200X12.5 Cold Roll Forming Line is mainly used to produce Section C, Section L and all kinds of profile steel without welding.

This unit can also produce steel sheet pile which is used to fix earthwork in tunnel constructions or other foundation works.

Product model number: 1200X12.5 

Steel strip width: 1200mm

Wall thickness: 4-12.5mm

Steel strip material: δB≤580Mpa, δS≤350Mpa, Mild steel & low alloy steel

Welding speed: 6-15m/min

Main motor power: 600Kw

Place of Origin:Shijiazhuang , Hebei, China

Type:Cold Roll Forming Line

Equipment composition:

The 1200X12.5 Cold Roll Forming Line consists of an uncoiling machine, Unbender unit, initiative Flattening machine, cutter & butt welder, cold bending and forming unit, Computer flying saw or flying stamping, charge table, product line electric applianc

API Pipe Mill Line

API Pipe Mill Line  Description

The oil, natural gas steel pipe production line produce the delivery pipe and petroleum drive pipe etc. conforming to standard of API-5L, API-5CT, ASTM A53 Grade A&B, also used in high-pressured transportation pipelines like boiler and heat transporting.

We absorbed the international advanced technology of tube making, adopting FFX and cage roll forming etc flexible formation technology, which made CAD system apply to deformation process of welded pipe which analysis and research the distortion control craft of high grade steel pipe, also coordinated with high-performance welding machine to solve better the forming and welding defects that provide the welded pipe products of .high grade & high added-value for users.

Main technical parameter:

Model	Raw material：σb≤580Mpa，σs≤350MPa Low carbon steel and alloy steel≤X80		Forming speed (m/min)
	Diameter range	Thickness range
φ114	Ø48~ Ø114	1.5~5.0	20~60
φ140	Ø48~ Ø140	1.5~5.0	20~60
φ165	Ø60~ Ø165	2.0~6.0	10~45
φ219	Ø89~ Ø219	3.0~8.0	10~35
φ273	Ø114~ Ø273	4.0~12.7	10~35
φ325	Ø165~ Ø325	4.0~12.7	10~35
φ426	Ø165~ Ø426	6.0~16.0	10~35
φ508	Ø219~ Ø508	6.0~16.0	10~35
φ610	Ø219~ Ø610	6.0~18.0	10~25

welded pipe machinery

welded pipe machinery 

welded pipe machinery 
We can produce Stainless steel pipe.Material:ss201 ss202 ss304 ss316 ss409 and so on!
Diameter:15mm-120mm
Thickness:0.3-3mm
We can guarantee the round and length.
It is main application: Protection industry ,Supporting Industry, Filter industry!

American Standard	Austenitic Steel:
	TP304,TP304L,TP304H,TP304N, TP310S,TP316,TP316L,TP316Ti,TP316H,
	TP317,TP317L, TP321, TP321H,TP347, TP347H,904L…
	Duplex Steel :
	S32101,S32205,S31803,S32304,S32750, S32760
	Others:TP405,TP409, TP410, TP430, TP439,...
European Standard	1.4301,1.4307,1.4948,1.4541,1.4878,1.4550,1.4401,1.4404,1.4571,1.4438,
	1.4841,1.4845,1.4539,1.4162, 1.4462, 1.4362, 1.4410, 1.4501
Russia Standard	08Х17Т,08Х13,12Х13,12Х17,15Х25Т,04Х18Н10,08Х20Н14С2, 08Х18Н12Б,
	10Х17Н13М2Т,10Х23Н18,08Х18Н10,08Х18Н10Т, 08Х18Н12Т,08Х17Н15М3Т,
	12Х18Н10Т,12Х18Н12Т,12Х18Н9, 17Х18Н9, 08Х22Н6Т,

welded pipe equipment

 welded pipe equipment :

1.pipe O.D(round):13mm-50mm(Φ0.5~ Φ2.0inch) 
2.Square pipe:10X10mm-40X40mm  
3.Wall thickness:0.5-1.8mm  
4.length:4-12m   
5.Speed:90m/min 
6.Main motor:75Kw 
7.H.F welder:100Kw 
 

 welded pipe equipment

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

ERW Pipe Mill Line

ERW Pipe Mill Line

1.What is ERW Pipe Mill Line
 
   This equipment is specially used for producingΦ20-Φ76mm,δ0.8-2.0mm high frequency straight seam welded pipe and corresponding square pipe and special-shaped pipe(δ≤2.0mm). The composition of equipment is from decoiler to fixed length cutting saw. Rolling speed can be adjusted correspondingly within suitable range of pipe diameter and wall thickness. 
 
2.Suitable material
 
 (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 equipment

welded pipe equipment ：
Alloys 304 (S30400) and 304L (S30403) stainless steels are variations of the 18 percent chromium – 8 percent nickel austenitic alloy, the most familiar and most frequently used alloy in the stainless steel family.

High strength, excellent corrosion resistance and minimized carbon content make Alloy 304 and 304L Stainless Steels useful for applications where welding is required. Uses include architectural mouldings and trim, welded components of chemical, textile, paper, pharmaceutical and chemical industry processing equipment.

welded pipe equipment

Other advantages are its resistance to oxidation, excellent formability, ease of fabrication and cleaning, excellent strength to weight ratio and good toughness at cryogenic temperatures.

For severely corrosive environments,the lower content of Type 304L is preferred because of its greater immunity to intergranular corrosion.

high frequency tube welding machine

high frequency tube welding machine Features
1. The high frequency tube welding machine is fully automatic and highly efficient.
2. Auto series automatic spool pipe welding machines are used for metal pipe fabrication, pipe welding, and pipe production lines.

3. Through our developments, in the year 2000 we initiated the concept and technology of mass production of piping within the factory premises. We have been devoting our researches in fabrication of pipe spools through automatic production lines and in cooperating efficient and effective factory layout planning.

4. We have approximately 60 different pieces of equipment which consists of cutting and beveling stations, fitting up stations, automatic welding stations, and complete pipe spooling production lines.
5. Our automatic high frequency tube welding machines are suitable for pipe welding of both carbon steel and stainless steel pipes, and alloy steel pipes, ranging from 1-24. You can fulfill automatic TIG/MIG/SAW for automatic root pass, fill and cap pass. Our automatic pipe welding machines have fast welding speed, high welding quality, and are easy to operate.
6. The high frequency tube welding machine is able to realize welding pipe to pipe, pipe to flange, pipe to elbow, long pipe welding, short pipe welding, etc.
7. Our high frequency tube welding machines, meeting and exceeding the various and different welding requirements, conditions, configurations and standards, have been accepted and recognized by many famous end users domestically and internationally.