2022年5月16日

Galvanized Barrel Corrugated Iron Profiles Roll Forming Machine with Pre-cutting

INTRODUCTION:

High-quality Barrel Corrugated Iron Profiles Roll Forming Machine with Pre-cutting for making roofing and wall decoration panel is widely used in hotels, clubs, home decoration, dance halls, resorts, shopping malls, luxury houses, villas, etc, especially for India.

TECHNICAL PARAMETER:

No.	ITEM		PARAMETER	REMARK
1	MATERIAL	Type	Cold-rolled strip steel, galvanized sheet
		T.(mm)	0.6-1.8mm
		Yield Strength (Mpa)	Q235
2	Forming product Width		990mm
3	Forming speed (m/min)		8-25m	Including hole
4	(KW)		7.5 KW	FYR
5	Hydraulic power (KW)		5.5 KW	FYR
6	Collect Rack		6m	FYR
7	Voltage		AC380V，50Hz，3P	Customized

WOEKING PROCESS:

Uncoiler →Guide device → roll forming machine →shear device (including knife)→ finished product rack

LAYOUT:

COMPONENTS:

Uncoiler

1,Type Manual Expansion

2,Parameter

1) Passive discharge

2) Coil weight：< 5T

3) Coil inner D.：φ450mm-φ530mm

4) Max. Width.1300mm

5) Thickness .0.4-1.8mm

Guide device

Main Forming machines

3.1 Forming Roller：16 stations，and add Rub-roll, To make sure the surface profile no scratches.

3.2 Side Panel：T.30mm ,A3 steel Heavy duty 。

3.3 Rolling speeding: 8-25 m/min。

3.4 Roller material：#45 Steel，overall quenching, hardness HRC56-62 ℃.
3.5 Motor power：7.5KW。
3.6 Main Roller ：￠90mm，45 #。
3.7 Equipment base: 45 # H type using welded steel plate.
3.8 Transmission: chain drive.
3.9 Security: across the board with emergency stop buttons, easy to handle emergencies, to ensure that equipment and operator safety. And other gear in the chain and the staff could easily lead to injury transmission section covered with protective cover, to ensure the safety of workers.

Hydraulic shear for cutting wave panel

Collect Rack

Collect Rack can do automatic flat rack or manual rack

Below photo is automatic collect ra

Electrical control system

The entire line imported PLC control, LCD touch screen, man-machine interface. People interact with the PLC. Operator setting the program to run automatically (programmable control) and control process monitoring, production line operator control and modify the control parameters, and real-time monitoring the equipment status & parameters and fault indication. Workpiece length digital setting, adjustable length can be adjustable as well. Real-time monitoring of equipment operating status and fault indication.

Operation manual / automatic two styles. With manual and automatic switching function: In the manual mode, can be stand-alone operation, easy maintenance; In automatic mode, carry out full production run, in order to start; across the board with emergency stop buttons, easy to handle emergencies, to ensure that equipment and operating personnel Safety.

Machinery main components of the brand

PLC control system: Siemens
Inverter: Taiwan Shilin
Encoder: Omron
Touch screen: Siemens
Some components are Schneider brand devices.

PRODUCTION LINE:

No.	Machine name	QTY	REMARK
1	Uncoiler straightener	1
2	Guide device	1
3	Forming machine	1
4	Follow Shear	1	Including knife
5	Collect rack	1
6	Control system	1

PRODUCTION FEATURES:

Guarantee of Quality

Zhongtuo guarantee steel corrugated roofing & wall decoration panel forming machine design accordance with clients required drawing, machine is brand new. Specification and performance as stipulated in drawing and operation with good smooth.

ADVANTAGES:

1, corrosion resistance, aging resistance, long service life >25 years

The material itself has strong corrosion resistance and even no direct chemical reaction. Therefore, it is more suitable for special environments such as beaches and chemical plants.

2, the performance of silencer and heat insulation is particularly prominent

MODEL AND MEANING:

Corrugated metal sheet roofing forming machine widely applied in steel structure which using large-scale industrial building roofs and walls of modern factories, fertilizer plants, sewage treatment plants, electroplating plants, power plants, breeding plants, markets, warehouses, etc..

This kind of roofing sheet are rich in color and unique in shape, and can be decorated with various styles of buildings.

TECHNICAL PARAMETER:

No	Item		Parameter	Remark
1	Suitable Material	Type	galvanized steel
		Width(mm)	Thickness(mm)
			990mm
			customized
		Yield Strength(Mpa)	230-350MPa
2	Production Speed(m/min)		about 8-25	depend on design
3	Roller Stations		16	depend design
					4	Roller Material	45	with quench treatment
5	Cutting Model		Hydraulic Cutting
6	Power source	Type	380V/3PH/50HZ	custmizied
		Total Power	About 38KW	depend on design
7	Dimension		1000020001500	depend on design

Wave panel shape and size all can be customized.

Various wave panel drawing all can be made by roll forming line

by zhongtuocn

2022年5月16日

The 2022 New High Speed Glazed Tile Roll Forming Pressing Machine

INTRODUCTION:

The 2022 new high speed glazed tile roll forming pressing machine, being of good quality, is used to make glazed roof tile, which is a kind of beautiful material.

This series of machine is a new-generational type roof tile roll forming machine with high speed and high-efficient, including decoiler system, sheet guiding system, roll forming system, pressing system, cutting system, auto-stacker system, hydraulic system, controlling system, etc

The common thickness for final products is normally 0.4-0.8mm to different profiles and materials. We also have other roll forming machines, like the Trapezoidal (IBR) Roofing Sheet Machine, Corrugated Roofing Sheet Machine.

The 2022 new high speed glazed tile roll forming pressing machine for sale on http://www.zhongtuocn. Contact us right now

PICTURE:

The 2022 new high speed glazed tile roll forming pressing machine is one professional equipment to produce steel tile which is comprehensively used in the large and medium-sized houses, villas, etc

This line includes decoiler coil sheet guiding roll forming punching post-cutting, hydraulic system controlling system, etc

The 2022 new high speed glazed tile roll forming pressing machine, being of good quality, is used to make glazed roof tile, which is a kind of beautiful material.

TECHNICAL PARAMETER

The 2022 new high speed glazed tile roll forming pressing machine, being of good quality, is used to make glazed roof tile, which is a kind of beautiful material.

TECHNICAL FLOW

Decoiling→guiding and feeding→roll forming→pressing→cut to length→run out table

COMPONENTS

Decoiler

Cantilever-type fully automatic decoiler adopts ultrasonic sensor technology and frequency inverter adjustment. The pressing-arm hydraulic driven power is optional. All electrical parts and hydraulic parts are installed inside of decoiler frame.

Roll forming

Roll forming system consists of guiding device machine base transmission parts.and roll forming rollers. etc.The filming and pre-slitter device is optional

Punching

The punching system adopts hydraulic type punching,which works stably and without scratch.The single punching or twin punching is optional

Post-shearing device

Post-shearing device adopts frame type hydraulic shearing. The panel is cut stably and can avoid distortion. This design don’t have any scrap in the process of cutting

Hydraulic system

Hydraulic system is installed inside of machine base. The design is reasonable and compactly.

Controller

It adopts Mitsubishi PLC and frequency inverter adjustment to realize fully automatic operation. Operator can set parameters such as badges length of panels quantities in the touch screen.

PANEL DRAWING

The 2022 new high speed glazed tile roll forming pressing machine, being of good quality, is used to make glazed roof tile, which is a kind of beautiful material.

by zhongtuocn

2022年5月13日

Durable Thermal Insulation and Noise Reduction Roofing Sheet

to live in a much cozier house--more durable, anti- condensation, thermal insulation, and without any noise, come here and see a new roofing sheet — to live in a much cozier house–more durable, anti- condensation, thermal insulation, and without any noise, come here and see a new roofing sheet

INTRODUCTION:

Do you have the following concerns before building a new house with color steel plates?

The color steel plate material is fragile, and the life of the house is short; or neither is it resistant to cold in winter, nor resistant to heat in summer; or the noise outside makes you unable to sleep in the middle of the night l, and even affects your daily life, etc. If you are facing these kinds of troubles, please don’t be worry, because Zhongtuo will help you, giving you a much cozier house–more durable, anti- condensation, thermal insulation, and without any noise. Come here and see a new roofing sheet.

ADVANTAGES：

This kind of sheet is made of a new type of thermal cladding material, which is composed of up to 8 layers of materials, and is processed through five high-temperature heat bonding processes and two high-strength anti-aging glue bonding processes. So compared others, your house will last longer and be more resilient to disasters.

In addition, we also take the climate into consideration. During winter, the big difference of temperature between day and night is easy to cause condensation. If not considered in the sign stage, condensation will greatly reduce the life of the building and affect the functionality, so the cost of maintenance will increase significantly. Anti-condensation sheet is dedicated to solve these problems in metal buildings, which could replace insulation materials, with more than20 years’ life expectancy, reducing construction costs and easy to pass fire protection approval. On this basis, Zhongtuo designed the new material and metal type roofing sheet. This new type roofing sheet,can be customized as the shape of roofing sheet you need,and compared to the normal PPGI metal roof sheet, It is better in terms of lifetime and muti-function.

More importantly, for corrosion of large industrial plants and warehouses (coking plants, ammonium sulfate plants, metallurgical plants, vulcanization plants, pickling plants, battery plants, chemical plants, steel rolling plants), the requirements for the acid and alkali resistance of the building are very high, fortunately, we can meet such a request. The roofing sheet we provided have strong acid and alkali resistance, escorting your production and operation.

So compared with other ordinary color steel plates, its advantages are more prominent, and since the this kind of sheet was promoted in the market, it has also been widely praised by users with its super anti-corrosion performance heat insulation effect, long service life, sound insulation and super strong acid and alkali resistance capability.

A house with this sheet can not only ensure a good quality of life, but also save the cost of repairing the house. It will definitely be a very wise choice to cooperate with us. Here more for your reference. If you need just contact us and tell \us your prefer, our products can be customized into different shapes and colors according to your like.

If you are interested in our products, please contact us.

by zhongtuocn

2022年5月12日

Anti-aging Trapezoidal (IBR) Roofing Sheet Roll Forming Machine

Description:

The good-priced new roofing sheet machine is your best choice with multi-function, and it is a good helper for heat and sound insulation For more details, please click here now.

The 2022 New Anti-aging Trapezoidal (IBR) Roofing Sheet Machine can easily produce the metal roofing sheets in a high speed with Inverted Box Ribs. Like other metal sheet roll former, this Machine is capable to run both automatically and manually. And more importantly, it is versatile, not only can produce normal PPGI and color steel material, but also can be used for composite material, so it is a good helper for heat and sound insulation.

The IBR roofing sheet machine and corrugated roofing sheet machine occupy the top ten in color steel tile sales in African steel building industry. Here is one drawing profile for your reference:

Anti-aging Trapezoidal (IBR) Roofing Sheet Roll Forming Machine

Technical Specifications:

Advantages:

Forthe gear, it is important for the machine that we use Chinese famous brand HRB
Forthe leveling part, we will use two layer and handrail
Forthe roller, we use the carefully polished one to make sure it will not damage the surface of raw

The main parts of the Anti-aging Trapezoidal (IBR) Roofing Sheet Roll Forming Machine:

ManualUncoiler;
FeedingGuider;
Rollforming machine;
HydraulicCutting system;
PLCControl System;
RunoutTable

For the Anti-aging Trapezoidal (IBR) Roofing Sheet Roll Forming Machine above is about the slow speed like 25 meter per minute. We also have another options like 45 meter per minute, here is the machine pictures for your reference:

Anti-aging Trapezoidal (IBR) Roofing Sheet Roll Forming Machine

by zhongtuocn

2022年4月1日

V115 metal roofing sheet or wall cladding sheet rolling forming machine is designed to make the roofing sheet in batch fully automatically. V115 is a quite popular design as it is either could be used as roofing sheet and wall cladding sheet, here is one drawing profile for your reference:

V115: For this profile the wave height is 33mm and wave distance is 115mm. And the material we use either as normal PPGI or the hot filmed 8 layer PPGI so the thickness could be to 2.0mm. Something like this:

V115 metal roofing sheet machine design:

Option A: Economic type

Option B: Stronger version:

Different with Option A, option B we use the Molding frame and gearbox as transmission. From the speed, it is more faster and more durable. But the cost is also more higher.

V115 metal roofing sheet machine working flow:

The advantages of V115 roofing sheet machine:

The hydraulic station we put on the machine, so when you get it, you can save the installation time, as the tubes are connected well.
The PLC installed on the machine, so it is quite easy to operate.
Use the stronger cutter holder, so it can use for a long time.
Two hydraulic jacks for shearing more powerful.
Use the separated mold to do the rolling forming., so it can make the wave distance and wave shape more beautiful.
Withe manual cutter, so you can cut the coil at any place.

How to adjust for both two type material?

For the machine design, we design a little bitter than the normal one and then it can handle quite thicker but soft filmed coil.
When handling the normal PPGI coil, it can protect the surface better also and then have higher speed.
As to how to switch, there are some handrails at the side of the roller. When handling thick coil, simple take it up and then handling thin PPGI and then simple press it down.

Where and how the V115 filmed and not filmed used?

Here is the machine working videos for your reference:

by zhongtuocn

2022年2月10日

Arch metal curve roofing forming machine is designed to do the crimping or curving on the metal roofing sheets. It can be used to make the curve roofing itself; it can be used to make the curveing by bending degree. Normally speaking, each punching it can change 10 degree and the punching degree is adjustable.

Not all the shape could be made by the Arch metal curve roofing forming machine, her I take some sample to show the machine design and how it works.

For the arch metal curve roofing forming machine, it handles the metal roofing sheets like this. When do the curve roofing sheets, it handles like this:

Arch metal curve roofing forming machine design like this:

Main parameters of arch metal curve roofing forming machine

2	Dimension of line	Main machine:230016501600mm
3	Weight	About 1.5T
4	Feeding roller material	45# high steel,machine by CNC, chormed 0.05mm
5	Shafts	70mm
6	Feeding steps	2 pass
7	Main motor power	3Kw Stepper motor(run accurately)
8	Hydraulic motor power	4Kw
9	Voltage	380V/3phase/50HZ(or as your requirement)
10	Material	Color steel plate
11	Drive type	Wheel gear driving,running by stepper motor
12	Thickness	0.3-0.8mm
13	Crimping mould	Cr12 high steel,quenched
14	Productivity	5-10m/min (not including the cutting time)
15	Control system	Delta PLC box with inverter, ouch screen

Here are some parameters of the Arch metal curve roofing forming machine for your reference:

Arch metal curve roofing forming machine finished products for your refernece:

For this machine, if you want to know more information, please contact us at any time.

by zhongtuocn

2022年2月10日

ZhongTuo Machinery is specialized in designing and manufacturing wall cladding panel making machine. This kind of machine is used to make wall panels in batch and in an automatic way. The speed of our machine can reach 25m/min. The machine can produce colorful steel wall panels, which can change the finished products width flexibly and meet the different needs of the market for multiple specifications.

Here is a video of wall cladding panel making machine for your reference:

There are several types of wall cladding panels for your options:

Wall claddings are available in several types and forms – from normal wooden panels to 3D wall panels. Their types differ in material, texture and dimensions. Some of the common indoor wall cladding types is wood cladding, steel cladding, stone cladding, etc.

Aluminum wall cladding panels are costly when compared with other kinds of cladding units. But aluminum cladding enjoys more durability and longer life. Same like the rolling forming machine, wall cladding rolling forming could be used to make either aluminum cladding panels and PPGI panels. These units are subjected to less maintenance or replacement over the years. Aluminum cladding is used mainly for basement and storage walls of the building. High quality and treated aluminum cladding are used for large commercial buildings and structures. Even if long time, it also keep fresh and new. ZhongTuo wall cladding panel making machine can do all of the metal rolling forming works for you. Here are the machine pictures for your reference.

Metal wall cladding rolling forming machine has the following features:

It has pre-cutting system which allows you to cut the sheet at any length.
With many type ribs options, by one machine you can make many types wall cladding panels.
Linear function. One machine can make any width wall cladding panels within some range.
All rollers are chromed for long time to use.
PLC control for width and size changing, fully automatic.

Application of wall cladding panel making machine:

by zhongtuocn

2022年1月27日

The sandwich panel roll forming machine is widely used to produce the wall and roof sandwich panels. The final products can be applied to pre-fabricated houses, modular houses, refrigeration rooms, etc. ZhongTuo Machinery can offer you different kinds of machines as your requirements. And we also provide services for you to make sure that the machine is safe to operate via video link by our skillful technicians. If permitte, we even can send our technicians to your factory to guide the installation on site. So if you sre interested in our machines, just click here to contact us at any time.

Here is a video of the sandwich panel roll forming machine for your reference:

Here are some drawing profiles of final products that our machine can manufacture for your reference:

As you can see, the machine made from our company can produce several types of sandwich panels. These kind of sandwich panels are composite, which means that the core of panels is filled up with insulation materials, such as polyurethane foam or rock wool. They are universely used in the building industry. In addition, ZhongTuo Machinery has ability to produce panels in all shapes and sizes. We choose the highest-quality raw materials to make sure the final product and our machine enjoy long-term life.

Here let me introduce some main components of the roll forming machine:

Decoilers: The machine is equipped with 2 or 4 decoilers. These decoilers are responsible for input of the steels, sending steels from the upper to the lower parts. The decoilers for continuous plants are made with a 4-segment structure, with a motor that can work in tension or in a loop and with a hydraulic loading cradle that does not need floor foundations.

Roll forming machines: The roll forming part is used to shape the metal and produce the desired sandwich panels. This part has been equipped with a cassette changing system for the purpose of replacing the profile during the manufuacturing in a quick and easy way. We also manage double rotating profiling machines.

Double belt: The double belt is the major part of the machine. This part connects upper parts and lower parts of panels. It is made from stainless steel plaes and it features extreme precesion and high accuracy.

If you want to learn more about the machine or other kinds of machines that ZhongTuo Machinery manufacture, please contact us right away! We are sincerely waiting for you.

by zhongtuocn

2021年12月31日

Description of C Purlin:

C purlin roll forming machine was designed to make the steel C purlines for roofing. It is an revolution for construction. Compared with traditional purlins, steel purlins have so many advantages, they are light, easy to install, and recyclable for other buildings etc. Therefore, as we can see, in mordern steel industrial buildings or prefab enineered buildings, people always use C purlins, Z purlins and sometime U purlins without flange stiffeners as well.

According to the usage of the C purline, we divide the C purline to the following types:

Galvanized C-shaped steel, hot-dip galvanized cable tray C-shaped steel, glass card slot C-shaped steel, glass curtain wall C-shaped steel, wire trough C-shaped steel, reinforced C-shaped steel, double-cage C-shaped steel, single-sided C-shaped steel, manual forklift C-shaped steel, Unequal C-shaped steel, straight-side C-shaped steel, oblique-sided C-shaped steel, inner-rolled C-shaped steel, inner oblique-side C-shaped steel, roof (wall) purlin C-shaped steel, automotive profile C-shaped steel, highway column C-shaped steel, solar bracket C-shaped steel (21-80 series), formwork support C-shaped steel, precision C-shaped steel for equipment, etc.

What is the C purline machine?

C purlin roll forming machine is equipment that produces C shaped steel channels continuously out of galvanized or cold rolled steel strips from feeding, punching for holes, bending and cutting.

Due to the change architects made about steel purlins, c purlin roll forming machine has been designed. Generally, a c purlin roll forming machine C shaped section channels continuously from feeding of the material, straightening, and roll forming, punching for holes or slots, and shearing. Seem like a z purlin roll forming machine, a traditional c channel roll forming machine is tehcnically capable to manufacture as much as 6 different sizes C steel purlins. Clients need to make manual changing for making different sizes channels. Besides, the cutting dies must also be changed manually for cutting different sizes C channels.

Furthermore, as roll forming technology advances, there are now automatic quick change roll forming machines for producing C and Z steel purlins (more at interchangeable c/z purlin rol forming macine)

Finally, the main components of a c sectional channel roll forming machine include a manual decoiler (3TONs capacity), a feeding guide for materials of different sizes, a levelling device, a front hydraulic punching for holes or slots on flanges, roll forming part, a rear hydraulic punching for holes or slots on web, a hydraulic cutting for cut to length, a PLC control cabinet, and and a hydraulic oil pump.

Technical Parameters of C Purlin Roll Forming Machine:

C steel purlin roll forming machine with hydraulic cutter and post punching tools

Decoiler: manual decoiler;
Capacity of decoiler: 5 TONS;
ID. of decoiler: 480-520mm;
OD. of decoiler: 1250mm;
Raw material: Q235 Galvanized steel coil or Cold rolled steel;
Yield strength of raw materials: 235MPA-345MPA;
Material thickness: 2-3.2mm;
Forming stations: 13-15 stations;
Rolling stands structure: conjoint type;
Machine Frame stand: Welded structural steel;
Thickmess of Fame Steel: 18mm;
Roll forming speed: 0-12m/min (not including punching and cutting);
Material of Roller: Gcr15 bearing steel;
Shaft Material: High grade 45# steel;
Diameter of shafts: 80mm;
Motor Power: 15 KW;
Hydraulic punching: Stop to punch;
Material of punching dies: Cr12MoV steel;
Cutter: hydraulic cutter and stop to cut;
Material of cutting dies: Cr12 steel;
Hydraulic power for cutting: 7.5KW;
Cutting lengths and quantities: Client can set various on HMI;
Control system: Panasonic PLC, Inverter, CHNT transformer and Omron encoder;

Specail introduction of the C purline punching part:

For the punching part, we have two options for your reference:

Option A: punching before rolling forming

Punching before rolling forming can do the punching easily and fast.
It can be used to punch the high density holes.
And it could be any kind of holes combination.
By changing the punching dies, you can also save lots of money for punching station.

Option B: punching after rolling forming

Punching after rolling forming, we could use for both bottom holes and side holes.
The hole position could be very accurate.

by zhongtuocn

2021年12月30日

Interchangeable c/z purlin roll forming machine manufactures both Cee & Zed shaped section channels with shapes and sizes quick changed by PLC control within the thickness of 3.0mm from 1.5mm and the bottom sizes could be from 50 to 300mm.

Here use some brief words to descrip the Interchangeable C/Z purlin rolls forming machine. In some degree, we call it as semi-automatic C/Z purlin roll forming machines, even if the changing time is greatly improved, from C to Z could be controlled within 5 minutes but the cutter adjustmnet need manual work.

However, this machine can make both C and Z shaped section channels. People still need two machines for the manufacturing of C and Z steel purlins. Investment on two roll forming machines (one Cee shaped section channel roll forming machine and one Zed shaped section channel roll forming machine) is not ideal solution to contractors or distributiors. As a result, our genuis roll forming engineers have pictured out a new type roll forming machine image in their mind. One machine can make all sizes C channel and Z channel; the punching station can be made as many as you need.

Zhongtuo C/Z purlin interchangeable roll forming machine has been designed to produce both C and Z steel purlins with any sizes available. The profile change including cutting dies for C to Z takes at most 30 minutes (just clutches taken out, a 180° turning on some rolling tools and clutches inserted in) and size change needs at most 5 minutes (just input the required distance through the touch screen on PLC control cabinet ). So much efficiency has been improved by this quick-change c/z steel purlin roll forming machine

Technical Parameters of Interchangeable C/Z purlin roll forming machine:

Cutting tools adjustable for any sizes of C and Z purlins

Raw material: Q235 Galvanized steel coil or Cold rolled steel;
Thickness of Material:1.5—3.2mm;
Yield strength of raw materials: 235MPA-345MPA;
Coil Weight: 5 Tons;
Diameter of Leveling Roller: 90mm;
Material Width: 300-580mm;
Feeding guide: 2 pairs slide wheels for adjusting left hand right;
2 Pairs pinch rollers: one in each side of leveler;
7-Roller Leveler: 3 rollers up and 4 rollers down with no power;
Forming speed: 0-15m/min(not including punching and cutting);
Forming steps: 18 stations;
Diameter of Shafts: 70mm;
Material of Roller: high quality GCR15 bearing steel;
Driven: Hydraulic driven type;
The Max punching thickness: 3.2mm;
Hydraulic puning & cutting: Stop to punch and cut;
Materials of Punching Molds: Cr12MoV steel with quench treatment;
Material of Cutting Blades:Cr12 steel;
Hydraulic Power: 30KW;
Hydraulic Cutting:Automatically cutting according to the length and quantities the clients set on the touch screen
Tolerance of cutting length:+/-2mm
PLC Control Box: 700mmx1000mmx300mm
Control System: PLC, inverter and HMI touch screen and Omron encoder

Voltage: customize

Comparison: manual C & Z machine, semi automatic C & Z machine.

Options A: manual C & Z machine

Traditional c/z purlin can make many section channels of different sizes (standard: 6 different sizes varied from 80-300mm web sizes,50-100mm flange sizes,15-20mm leg sizes), but it needs manual changing and each size changing will take at least 2 hours, as a result, traditional c/z steel purlin roll forming machines don’t work so much efficiently.

Option B: semi automatic C & Z machine

Different with other type CZ purline, ours can finish shape from C to Z can be finished within 5 minute. While on a other design of sem-automatic machine, operators move the respective sub-frames to adjust for different sizes of web heights or flanges.

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