Roller shutters

Roller shutters have many applications, including doors for vans, garages, kitchens, schools, prisons, and warehouses. In some parts of the world, roller shutters are subsidized by local governments. In areas that are frequently exposed to inclement weather, roller shutters are used as a method of insulation, can protect windows against hail damage, and can be made to withstand high wind. If you are a supplier of roller shutter, you have a so big market. As manufacture of roller shutter door making machine, we are responsible for you and our machines, the quality must be best.

Take these finished products for example

roller shutters doorroller shutter

The whole process of roller shutters door making machine

1>uncoiler 2>leveling system 3>roll forming machine 4>shearing system 5> run-out table

About each part, we have a detail introduction about the pictures and function. If you want to know it, just contact us.

Here are some pictures about the roller shutter door roll forming machine

metal shutter door making machine

garage shutter door making machine

Some parameters about the roller shutter machine

Uncoiler: 3 ton

Roller station: 12 stations

Sizes: 4.5 m * 0.8 m * 1.2 m

Structure: Middle plate or verticle frame

Weight: 1.8 ton

Motor: 4kw

Hydraulic motor power: 3 kw

Speed: 0-20 m/min

Once you give us the profile you want to make or finished product of roller shutters, we can customized the machine and give you a accurate quotation. Please feel free to contact with us at any time.

Monotone Type C purlin machine

Monotone Type C purlin machine

First, the main technical parameters
1. Rolling Product specifications: Width 60mm ~ 160㎜ thickness of 2.0 mm ~ 3.0㎜
2. Rolling speed: 25-30m / min
3. The number of molding groups: 12 groups main roll
4. Number of leveling Group: 7 roller leveler
5. The number of transport groups: 2 groups transport
6. Installation form: The arch-style
7. The roller form: using both sides of the split roller
8. Roll Material: GCr15 quenching treatment, HRC58-62
9. Spindle material: 45 high-quality quenched and tempered steel
10. Main motor power: 30KW
11. Hydraulic station motor power: 7.5KW with accumulator
12. cutting: After cutting molding
13. Cutter material: Cr12 quenching treatment
14. The electronic control system: The whole machine adopts industrial computer PLC frequency control
15. Host Dimension: length 9m × 2.3m × width height 1.6m (including the main motor)
16. Total weight: about 95000㎏

Monotone Type C purlin machine
Second, the main characteristics of the structure and composition
Monotone Type C purlin machine is a set of rollers to produce a variety of specifications C purlin roll forming machine finished single aircraft mainly by passive loading rack, loading rack mount, conveyor roller, roller leveling, forming host, forming cutting device, hydraulic station, computer control cabinet, finished carriage of several components.
Monotone Type C purlin machine uses both sides of the roller body in the form of points, while fixed, the other side of the overall move, any rapid change stepless width dimension, ie width can be single-digit size changes (such as 60,51,102, …. .160).
Die cutting machine stop using tracking mode, no waste, cutting off a small distortion and high efficiency.
Third, the device production process
Loading a material into the plate (the strip forming machine imported correctly the first roll) 7-roller leveling roll forming (by host 12 of roll molding) cut —– ——- Tracking finished (the finished material holding bracket by the board)

If you also want to know Fully automatic Interchange C/Z purlin roll forming machine  or Z purline roll forming machine

You also can contact us with email:


Wall Angle Bead Profile Roll Forming Machine

Wall angle bead profile roll forming machine can used to produce angle beads in batch. It is fully automatic. We can control the angle beads length through the PLC controller. If you need the training, we can arrange our engineers to teach you.

There is a machine of wall angle bead profile roll forming machine.

wall angle bead profile roll forming machine

For the wall angle bead, you can know more information in the followings.

The features of metal wall angle bead

1. The metal corner wall angle bead is made of high quality galvanized material on both sides to prevent aging, corrosion and fire, and effectively prevent rust.
2. The precise acute angle dimension design of the metal corner strips avoids the concentrated stress when the corners are impacted, and evenly distributes the external forces to the peripheral edges, effectively protecting the sunken corners from damage.
3. Two types of metal corner strips, punching and expansion, not only facilitate nailing but also make the gypsum board or other adhesive materials in the corner strips more firm.
4. The construction of metal corner strip corners does not rely on wood strips. Primary plasterers can also make perfect corner lines, shorten construction time, and effectively reduce construction costs.

The usage of wall angle bead

The wall angle bead can form a straight edge on the ridgeline of the plasterwork to resist cracking or cracking, and protect and reinforce the most vulnerable part of the stucco. The net wing can be firmly anchored into the plaster on either side of the ridgeline. The full depth of the mud. The corner net is very important for stucco decoration because the corners of the stucco are most likely to be damaged during construction and completion of use, and it can save a lot of time because of its easy construction.

The difference between C purlin and Z purlin

With the increasing popularity of steel structures, the use of C purlin and Z purlin has also increased. What is the difference between the two? Here we will focus on the differences between c purlin and z purlin.

C Z purlin

1. The angles of Z purlin and C purlin are different. The C purlin is 90 degrees and the Z  purlin is less than 90 degrees. Therefore, when using a screed on a certain slope, it is necessary to consider the angle of the purlin in combination with the knowledge of the rake, and the slope is large and the Z purlin can be used. Take full advantage of its bending performance.

2. Compared with the Z section, the mechanical properties of the C-section and the Z-section are different, and the connection to the steel frame is mostly bolted. The calculation must be based on simple considerations. Therefore, from the aspects of stress state, structure and calculation results, the latter is more reasonable. Therefore, in addition to the needs of door and window openings and other special nodes, Z-sections should be preferred.

3. when the roof slope is small, the modulus of flexural section of Z purlin is slightly larger than that of C purlin, but the difference is not significant. When the roof slope increases, the modulus of flexural section modulus of Z purlin symmetrically increases in the vertical direction. Big. Therefore, Z purlins are suitable for roofs with large slopes.

4.  for the wall, the choice of Z purlin or C purlin does not make much difference, if the purlins want to make a continuous component, the best Z purlins, because of its convenient lap.

Based on the difference between C purlin and Z purlin, you should consider which situation is more suitable to use the C purlin or Z pulin.

Specification and quality problems of light steel keel

Partition keel refers to partition light steel keel, which are used as decoration by most families. In the followings, i will introduce some specification and quality problems of light steel keel to you.

Specification of light keel

The thickness of light steel keel is from 0.4 mm to 2 mm. In general, most people choose light steel keels when using paper plaster ceilings. Thin gypsum board using thin light steel keel, gypsum board thicker with a thicker light steel keel. There are two types of galvanized keel, cold galvanized and hot galvanized. Hot galvanized prices are higher.

partition keel

Should pay attention to the quality problem

1.Wall shrinkage deformation and board surface cracks: The reason is that the vertical keel tightly up and down the keel, did not allow expansion and contraction, more than 2 meters long wall does not control the deformation joints, resulting in wall deformation. A 3 mm gap should be left so that distortions and cracks due to temperature and humidity effects can be reduced.

2. Light steel skeleton connection is not strong, because the local node does not meet the construction requirements, the installation of local nodes should be strictly in accordance with the provisions of the map. Pinning spacing, location, connection method should meet the design requirements.

3. Wall coverings are uneven, and most of them are caused by two reasons: one is the lateral misalignment of the keel, and the other is that the thickness of the plasterboard is not uniform.

light steel keel

Low Cost Carbon Steel Pipe Making Machine

Description:Low cost carbon steel pipe making machine is also called high frequency welded pipe making machine. We use advanced welding technology and offers training service for enhancing speed, higher deposition, superior mechanical properties and quality. Zhongtuo steel pipe/tube making machine is widely applied for producing tubes for heat exchanger, refrigerator, frame of car, bicycle, fitness equipment, furniture, cooling machine, petrol transmission, construction industry, etc.

Low carbon steel corrugated steel pipe making machine or welded pipe mill composes following elements like, single or double decoiler, leveling part machine, coil accumulator, coiler feeds, shearing and bead weld device, accumulator, tube mill section, track flying saw and runout table.

Service for Low cost carbon steel pipe making machine

For catering to continuously ever-changing challenges of pipeline construction, Zhongtuo provides various sizes pipe customization services, including engineering, onsite technical support and equipment training. We own high-precision equipment lines for welded pipe mills. After machine delivered, we will help customers to train users till they know how to use machine well.

Working Process of Low cost carbon steel pipe making machine

working process of Carbon Steel Pipe Making Machine

Technical Specifications of  Low cost carbon steel pipe making machine


HG32 tube mill line

Diameter of Welded Tubes

Φ10 mm to 127 mm

Wall Thickness of Welded Tubes

0.4 mm to 4.0mm

Speed of Tube Welding

30 to 90 m/min

Power of Major Motor

110 KW × 2

Power of High Frequency Welder

350 KW

New features:

1. Low energy consuming. Different with other machine, we have improved HF Weldeder part, the current of this part could be lowerd down in great degree.

2. Lettering function, Our machine allows you to add company logo or simple words on the output pipes.

Carbon Steel Pipe Making Machine

Light steel keel forming machine production line

Light steel keel  forming machine production line could be used to make the metal stud and track in batch fully automatic. And for our factroy, we want to stay competitive in the stud and track industry, you need to be able to manufacture and supply the accessory components that complement your other framing component products. Zhongtuo offers a single roll forming line which can produce all of these products – and with the Option of Rapid Change rafting to assist with fast roll tooling changeovers.
profile of Light steel keel forming machine

More details of light steel kell roll forming machine production line:

1. Main Machine:

Size: 5500*1200*1400Weight t: 4.8 tons

Voltage:380V/50HZ3Phase(as customer’s request)

Roller fixer : Guide columnFrame : middle plate welded

Memorial arch frame typeFrame thickness:25mm

Drive mode: gearMaterial of rollers: GCr12MoV

Material of shafts: 45# steel with tempering

Diameter of shafts: φ50mm Number of rollers :12 rollers

Main power: 7.5kw                  Cycloidal planetary gear speed reducer

2. Punching hole and punching logo

This part will help you press your company logo on the finished products.

Power: hydraulic

3. Shearing machine

Material of blades: Gcr12 quenched

Power supply : hydraulic power

Frame : Pillar style with rack & pinion system

Stroke switch :  non-contact photoelectric switch

We will give 9 pieces of cutting balde for you to change to fix those different drawing profiles.

4. Hydraulic Station

The Hydraulic motor Power: 5.5kw

And Hydraulic oil: 46#

Components: The system includes a set of hydraulic tank, a set of hydraulic oil pump, and two hydraulic pipes. And three sets: one is for punching hole; one is for printing words and one for cutting.  Sets of electromagnetism valves.

5. Electric Control System


1. Adopted PLC, transducer, touch panel from Delta Taiwan to ensure high speed with stability, precision and lifetime.

2.Other electric element are Delta

3. Equipped with movable switch, air break, radiator, transformer & electric leakage protector for operation convenience and safety.

Pictures of light steel keel  framing machine production line:

light steel keel forming machine

steel keel forming machine

This machine can help you make various sizes seel keels, so it is convenient for you to produce. We guarantee the machine quality and provide 24 hours technical support. If you have the questions about installation and usage, please feel free to send us email or give us a call.

We also have other roll formaing machines for constrction, such as furring channel machine. If you want these machines, feel free to let us know.

Cee Zed Purline Rolling Fomer

Nowadays structural cee zed purlins are for industrial buildings, garages, verandas, and carports; anywhere that strong reliable steel framing is required. Manufactured from quality galvanized steel, this is a fully integrated system allowing for flexible design options. Based on the needs, we developed fully automatic cee zed purline rolling former. The following picture shows the size range and thickness range:

parameters of cee zed purline rolling fomer

Normally the cee zed purline roll former needs the plain or punched, which galvanized purlins are manufactured from high tensile steel for increased strength, reduced weight and a long serviceable life. All those punching on line could be made by this machine controlled by PLC system.

cee zed purline rolling fomer

Features of cee zed purline rolling former:

  1.  It offers a rapid change roll former for allowing the operator to select a flange height change in minutes and not hours.
  2.  The web width change in an infinite range from 100mm up to 300mm fully automatic.
  3.  It supports produce purlin in pre-painted, in galvanized and also the use of Hot Rolled steel.
  4.  High accuracy with punching and high speed from uncoilers, as well as a wide range of hole punching systems for inline web and flange hole placement with high accuracy.
  5.  Automation of gapping the roll tooling for different thicknesses can be added so that your operator does not have to adjust the top shaft for material thickness changes.


What kind of quality insurance you can get and after-sale service of CZ interchangeable purlin roll forming machine
1. The warranty of purlin roll forming machine C75- 300 is one year after the client receives the machine. Within the one year, we will courier the replacement parts to the client free of charge.
2. We offer technical support for the entire life of our machines.

Easily Operate Highway Guardrail Making Machine

To keep the driver safety, we need the highway guardrail making machine. We are specialized in making the highway machine. And our machines are easy to operate. We can make two waves, three waves for highway guardrail/fence application and two waves and three waves are made by one highway guardrail machine.  The following is about our easily operate highway guardrail making machine.

Production Standard: JT/T 281-2007, JT/T 457-2007

Raw material: Q235A galvanized steel sheet

Steel guardrails provide a visual and physical barrier between traffic and work areas. It is used for protection against accidents due to lift trucks or other mobile equipment in dock areas, aisles, around special equipment, or offices. Reduce costly damage to equipment and inventory. Modular system is easily expanded or moved as needed. For indoor or outdoor use.

highway guardrail

In the following part, I take a random two wave guardrail for example to show you how our guardrail is designed.  The following drawing profile is about the two wave guardrail:

guardrail profile drawing

Based on the above drawing profile, we make guardrail making machine parameter like the following:

1. Suitable material: Q235A galvanized steel, width: 440mm, thickness 3.0mm

2. Forming speed: 10-12M/min

3. Forming roller station: 20 stands

4. Leveling roller station, 7 stands

5. Guiding and feeding roller, 4 stands

6. Roller material: Gcr 15 bearing steel after treatment, HRC58-60

7. Roller shaft material: No.45 high grade material after treatment

8. Roller shaft dimension: 100mm

9. Main motor power: 45 KW

10. Transmission: by gearbox

11. Leveling rollers motor power: 2.2KW

12. Hydraulic motor power: 11 kw, hydraulic pressure: 20 Mpa

highway guardrail making machine

Best Machine can make the best finished product to protect road against impact:

Poorly designed machine makes lower quality finished products. The guardrail terminal ends will lead to penetration of errant verticals, which could be extremely dangerous. So for the machine design, we are quite seriously.

application of highway guardrail

Roll Forming Machine For C Purlin

The C purlin machine based of adjustable roll forming machine is processed by planning machine and the screw locating pin connects machine stand walls. Straight panels ensure its high accuracy. Connecting holes of roll forming machine for C profile are adjustable.

All the c purlin machines could support material thickness from 1.5 to 3 mm and the bottom width from 80 to 300 mm. C purlin machine is only for making c channel, it also has two types: one is fully automatic of changing sizes and other is changing sizes by spacers. Same of the situation of z channel.

The process of c purlin machine is like this:

profile drawing of c purlin machine

The machine photo is like this:

c purlin machine

Features of C purlin machine

1. This machine is made up of welded steel. It uses processing technology to protect its integrity.
2. It has rational structure, strong carrying ability, and stable performance.
3. This machine has high forming precision and long service life because it undergoes high precision processing and heat treatment before chromeplate.
4. Components from famous brands ensure the whole performance and quality of our machines.
5. The C purlin machine can be operated by workers without special training because of its PLC control mode.
6. Easy to debug, low noise and high efficient.

For the c/z purlin mahcine, there are two other options: Z purline machine, C Z purlin interchangeable roll forming machine. No matter which one you are interested in,  please let us know.