Round Gutter Roll Forming Machine - Perfect Edge Treatment

The round gutter machine Created by Nitchen Group focus much on the edge treatment. In old days, the gutter roll forming machine mostly dedicates too the entire shaping, but ignore the edge treatment. Thus causes too much inconvenience in installation. Nitchen Group studied the case a lot and research out a series processes of improve the edge. 

Roll forming machine in today's China

China now becomes the world manufacturing center. Roll forming machine manufacturing in China also becomes the center of the world.

As the roll forming industry came to China in last decades, Today's china has two group of roll forming manufacturers. One Group is focusing on lower market and the roll forming machines they made are also less quality. Another Group is lead by Nitchen Group, focus on higher market and high quality roll forming machines.

The history of Roll Forming or Metal Working

Since the development of civilization, people continually discover ways to complete tasks. In our drive to survive, we, as humans, have developed several objects that help to make life easier. More complex objects include computers, telephones and automobiles. Simple tools include forks, screw drivers and widgets. All of these objects are made out of some type of metal. The development of metal and the art of forming metal have come a long way over the years.
Prior to the discovery of metal, people used simple tools made out of bone and wood. Soon, however, fire was discovered and eventually ancient humans discovered that adding heat to certain rocks, more accurately described as ores, could free the metal from the rock. With the discovery of fire, eventually evolved the art of extracting and smelting metals, and forming them into usable objects. Such a practice is commonly referred to as metal working.
During early historical periods, precious metals had value attached to them. Metalworkers, therefore, used the metal to make religious artifacts, jewelry, keepsake items, tools for specific trades and weapons. Metals were formed by artisans, blacksmiths, atharvavedic practitioners, and alchemists. These metalworkers became increasingly important as time past and metal became more necessary.
Metalworkers were considered to be very valuable members of early societies. As more and more items and tools began to be made out of metals, more people were needed who were skilled in the craft of metal working. These so called metalsmiths were important for maintaining the economic stability of a civilization. Objects made out of metal were necessary for industry, farming, jewelry making and defense purposes. The necessity of metal items contributed to making the metalworker and invaluable member of society.
Today, the art of working with metal provides several occupations and trades. Many people specialize in forming and shaping metal. Techniques have definitely changed since ancient times and much of the forming of metal is done by machines. For example, the technique of roll forming is completed by using quality roll forming equipment. Roll forming is a technique used to bend a long strip of metal into a specified cross-section. A roll forming machine consists of several consecutive rolls that continuously bend the metal into shape. Each set of rolls, also known as strands, only bend a small part of the metal. The metal is past through the roll forming machine until it meets the specifications.
The art of roll forming is one example of the evolution of metal working. The use of a roll forming machine and other roll forming equipment are examples of the progression overtime that has occurred within the metal working industry.

610 K span roll forming machine

Roll Forming Machine for K Span System K-Span is high quality Pre-Painted Galvanized Steel Roofing, combining low prices with fast erection. KSPAN Building Systems refer to the first generation of Automatic Building Machines that can be used for Industrial, Agricultural, Housing, Institutional, Recreational or Commercial Building Needs.
K-Span Building System offers excellent Institutional Buildings in an Economical manner . K-SPAN Building System is suitable for Farm, Barns, Vegetable Stores and Storage silos. The System can be used to create sheds to protect your vehicles. Aircraft Hangers can be created using the system. Moreover, low cost residential units can be erected in a quick manner
1. Main Parameter:
1. Material to be rolled: Q235, Colorbond or galvanized Steel, coil
2. Thickness of the material: ≤0.8-1.3 mm
3. Coil width max: 914mm
4. Inner diameter of the coil: 520mm, subject to buyer’s requirement
5. Outer diameter of the coil: ≦1800mm
6. Decoiler: 5000kg, manual expansion
7. Roll stands: 19
8. Main structure: wall style entire steel structure
9. Driving system: chain transmission
10. Main power: 5.5KW
11. Main reducer: cycloid pin
12. Cutting: Hydraulic cutting
13. Power of hydraulic station: 3KW
14. Material of blade: Cr12, heat treated HRC58-62
15. Measure: encoder
16. Controller: PLC
17. Forming speed: about 5-15m/min
18. Dimension : abt. 13m*1.3m*1.5m
19. Weight: abt.13mt
20. biting machine
21. bending machine (if necessary)
Process:
Manual decoiler——guiding——roll forming——hydraulic cutting——run out table
Features of our k-span machine 1. All the rollers are forged from the high quality structural steel and are processed intensely. The surfaces of the rollers are plated with hard chromium. The rollers have a high hardness and long operating life. 2. The power set to automatically transport the colored steel sheet is equipped in the forming press section, which can press the colored steel sheet with the thickness of 0.5~1.5mm. It is not needed to frequently adjust the clearance between the pressing rolls when pressing the sheet with different thickness, which can make the sheet come out from machine normally without scuffing of the coating film of the sheet. Being just like a “foolproof camera”, the operation of the machine is very simple. But the quality of the finished product can be guaranteed. 3. The length of the finished sheet is measured by the electronic measurement instrument or mechanical measurement instrument. The helping hand wheel and the counter are used in the adjustment of the bending of arch sheet, which makes the operation simple and guarantees the quality and the dimensional precision. 4. The hoisting tool is light and handy (The weight of hoisting tool of the United States is 30KG. And the weight of hoisting tool of our company is 2KG). It is convenient to install and uninstall the hoisting tool. Its hoisting speed is quick. The joining type of the roof is self-lock, which makes it easy to install and safe with excellent water proof and storm resistance. The curving roof can directly be produced on worksite, effectively lowering the cost. The product is widely used on large-scale and mid-scale industrial construction, such as factory, warehouse, garage, gymnasium, exhibition center, cinema, theatre and so on.

What is Roll Forming?

Roll Forming
Roll forming, also spelled rollforming, is a continuous bending operation in which a long strip of metal (typically coiled steel) is passed through consecutive sets of rolls, or stands, each performing only an incremental part of the bend, until the desired cross-section profile is obtained. Roll forming is ideal for producing parts with long lengths or in large quantities.
Roll Forming Stand
roll forming process.
Roll forming machines are now being produced so that for similar products such as stud and track profiles, a new set of profile rolls is not required. This is achieved by the mill being split along its center line and the web, flange and ear sizes are set using a control panel which moves the mill rafts centrally to increase or decrease the aforementioned features.
Roll forming lines can be set up with multiple configurations to punch and cut off parts in a continuous operation. For cutting a part to length, the lines can be set up to use a pre-cut die where a single blank runs through the roll mill, or a post-cut die where the profile is cutoff after the roll forming process. Features may be added in a hole, notch, embossment, or shear form by punching in a roll forming line. These part features can be done in a pre-punch application (before roll forming starts), in a mid-line punching application (in the middle of a roll forming line/process) or a post punching application (after roll forming is done). Some roll forming lines incorporate only one of the above punch or cutoff applications, others incorporate some or all of the applications in one line.
Roll Forming Process
The process of roll forming is one of the simpler manufacturing processes. It begins with a large spool of metal strips, usually between 1 in. and 20in. in width, and 0.004 in. and 0.125 in. thick. This is held by a device called a dispenser. The metal strip is then unrolled and fed into a machine starting with the stock feeder which is connected to the cutoff attachment. After the cutoff attachment, the metal strip is fed into the forming rolls. These mating die-set rolls are constructed to form the desired shape in stages sequentially by means of various shaped rolls. The layout of these rolls can be flower shaped as mentioned previously, progressive upper/lower rolls, side rolls, or as overhung spindle rolls. These different roll configurations are used according to the job that needs to be done.

Roll Forming Rates
The production rate depends greatly on the material thickness and the bend radius, it is also affected by the number of stations or steps required. For bend radii of 50 times the material thickness of a low carbon steel .07 in thick can range from 85 feet per minute through eight stations to 55 feet per minute through 12 stations or 50 feet per minute through 22 stations.The time taken for one product to take shape can be represented by a simple function. The function is as follows: Formingtime = L + n(d) / V where V is the velocity of strip through rolls (fpm), L is the length of the piece being rolled (ft), d is the distance between forming stands (ft), and n is the number of forming stands.
In General roll forming lines can run from 5 feet per minute to 500 + depending on the application. In some cases the limiting factor is the punching or cutoff applications.

About China Nitchen Equipments Group

China Nitchen Equipments Group Limited is specialized in research, development and
manufacturing of roll forming machines, automatic cutting machine, H beam welding machines,
light pole welding machine, press brake, shearing machine, CNC lathe, Oil Pipe, Steel Pipe,
diesel generator and other construction equipments and materials. Nitchen Equipments Group
has some affiliated companies——China Roll Forming Machinery Co., LTD, Suzhou Topweld Auto
Welding Machinery Co., LTD, Wuxi Nitchen Steel Pipe Co., LTD and Jiangsu Kipor Power Co.,
LTD and Shanghai ITPC IMP/EXP Co.,Ltd.
Over many years, with the wonderful quality, reputation and the idea of brand "homes hence
the world", Nitchen Equipments Group has cooperated in technology with Germany, South
Korean, France, Italy and Australia, insisting on the development strategy of "Rooting in
the field of kitchen and toilet appliances, focusing on close relative products while paying
attention to diversification, forming a specialty and building a feature". The products are
growingly upgraded and renewed because of the cooperation and technical reform. Nitchen
Equipments Group has set up more than 20 distribution centers all over the country, 100
foreign offices, 400 service points and 2000 image counters, which forms a sales network
throughout the country. At the same time, facing the international market, Nitchen
Equipments Group establishes its exporting business to many other countries and regions,
such as Europe, the United States, southeastern Asia and Africa. In recent years, the
average annual growth rate of the company is up to 35%. Nitchen Equipments Group always pursues the spirit of enterprise "Pragmatism, Refinement,
Study, Creativity"and the service notion "Our Service must Be Perfect"Now it has won social
and consumers' approval, which builds the products' name recognition. All Nitchen products
have passed ISO9001:2000 certificate and CCC certificate and have been awarded as "Chinese
Well-recognized Brand"for several times, "Chinese Famous Brand", "Jiangsu Famous Brand",
"Jiangsu Civilization Company"and "Jiangsu Superfine Credit Enterprise". Technical Nitchen
Infinite Innovation. Nowadays hi-tech is developing extremely fast and market competition is
becoming fiercer, and Nitchen Equipments Group is willing to cooperate with friends of all
walks of life at home and abroad to achieve common development and prosperity.