Question 1

What type of Machinery does Brother Union Machinery sale? | About Us

Accepted Answer

Brother Union Machinery mainly sells roll forming machines and coil processing machines, sheet metal forming machines. We also supply related service about roll forming machine.

Enterprises rely on good products to achieve returns from market. What is the uniqueness skill of Brother Union Machinery.

High-strength steels roll forming

Brother Union Machinery has designed and manufactured roll forming machines for Customers with high quality requirements, especially automotive industry. In the automotive industry. Cars' roll-formed parts use a variety of specifications, and most of the sections are more complex, and the dimensional accuracy is strict. And with the development of automotive lightweighting, car manufacturers reduce the wall thickness and to increase the strength of the materials.We are proud that we have participated in the high-yield strength car bumper production line manufacturing and supplied our roll forming equipment for world-renowned automobile parts enterprises.

Door Frame Roll Forming Machines

Door Frame Making Machine is one of the main roll forming equipment of Brother Union Machinery. Thanks to engineers' hard-working & customer choices, Brother Union Machinery has served steel door & window manufacturers with a world footprint. We have accumulated a wealth of experience In the door frame and window frame roll forming machine to produce a variety of metal frame profiles. eg commercial steel doors frames, residential metal door frames, fire-rated door frames, and other customized framings.

Brother Union Machinery also manufacture and supply coil processing machines:

Coil Handing Equipment

Slitting Machines

Pressing & Punching Equipment

Cut to Length Machines

Brother Union Machinery always focuses on boosting productivity of roll forming equipment to proper level,to balance the equipment purchase cost and production efficiency.

More Roll Forming Equipment Project Case

Question 2

Does Brother Union Machinery sell custom made roll forming machine? | About Us

Accepted Answer

We are professional in roll forming machine design and manufacturing, and we have long-term experience in high quanlity customized roll forming machines design, high strength steel roll forming solutions, special profile roll forming.

Question 3

How do I request a roll forming machine price / quote? | Buy Roll Forming Machine

Accepted Answer

Contact us by email or phone for a roll forming machine price. In order to send you a relatively accurate quotation, the buyers should send:

1. profile drawings，
2. steel（or other metal）coil specifications，
3. hole-puching drawings
3. and other detailed requirement to us.

If you do not have the drawings, please at least send roll formed part pictures and your main requirements.

You can also check Brother Union Machinery website and YOUTUBE Channel to see picture or roll forming machine video find and select the similar roll forming machine you want to buy.

Question 4

Why choose Brother Union roll forming machine? | Successful  Cases

Accepted Answer

In most cases, our roll former costs are higher than our Chinese competitors. Why customer still choose Brother Union roll forming machines?

Our pricing has always been a quality assurance that allows our customers to get the real qualified roll forming machine.

Brother Union Roll Forming Machine has a high level of attention to detail. We use high-quality materials and offer high-quality workmanship to make sure the machine working reliability & lifetime.

Customers' choices are the greatest affirmation to the Brother Union Roll Forming Machines.

Please click the links to see the successful cases roll forming production lines working in customers' factories.

Question 5

Does Brother Union Machinery supply machine Installation and Commissioning Service? | About Us

Accepted Answer

Yes, Normally, we privide machine installtion and commissioning service. After roll forming machine transported to user's factory. Brother Union engineeers will come to install and debugg the machine. BU engineers have plenty of experience in roll forming equipment debugging & maintainance abroad.

Question 6

About Company Size of Brother Union Roll Forming Machinery | About Us

Accepted Answer

Brother Union is a small private owned company that focus on manufacturinig quality roll forming machines and coil processing equipment.

We emphasize on manufacturing high-qulity roll fomers and service to high-end customer all the world.

Question 7

How much training is needed to operate the roll forming machine? | Buy Roll Forming Machine

Accepted Answer

Do not need to worry, Brother Union conduct basic roll forming machine operational training, so for the first time customers are operating the machines under the instruction of Engineers from BU Roll Forming. Buyers can also contact us for roll forming machine maintainess assistance by internet.

Question 8

If my roll forming machine breakdown, what to do? | Roll Forming Machine Maintainance

Accepted Answer

Thanks to the internet. Brother United Machinery developed the "Remote Connection System" to help guide customers in the troubleshooting and maintenance of roll forming machines.Brother Union's service engineers have the ability to monitor, diagnose and troubleshoot roll forming lines that work in customer factory.
To normal part wearout, To normal part wearout, we can supply new machined parts and elements. Customers can also sourcing from local market under the instruction by BU engineers.

Question 9

What are the main Components of a Roll Forming Machine? | Roll Forming Basics

Accepted Answer

Main Components of a Roll Forming Machine

Here we only talk about the roll forming unit in a roll forming line. (uncoiler, press & punch, servo feed, stacking, cutting..., the other units are not included)

Normally, a standard roll forming machine contains a base, stands, shafts, rolls, and drive system.

Machine Base

A rigid machine base is the foundation to build a good roll forming machine, In Brother Union Machinery, the upper surface of top plate of base is machined, where the stands are mounted.

A rigid roll forming machine base, with top plate machined

The maching surface of a roll forming machine base

machining the mounted plate of a roll forming machine

Maching the mounted plate of a cassette type roll forming machine

The machined keyways are used for aligning the stands

Stands

In a roll forming pass, a pair of stands (drive-side stand and operate-side stand) hold and support the shaft and rolls.

The stands are fastened by bolts to the machine base.

The bearing blocks should move freely up and down

neelde bearing in roll forming stands

For most roll forming machines, the bottom shafts is position fixed above the machine bed. And the top shafts is adjustable up and down by screws.

Shafts

A qualified shaft should be made of proper material and has enough diameter to bear the heavy working condtion.

Especially to a long shaft, the shaft deflection should be considered when designing a roll forming shaft.

Shaft of a roll former

Excessively high forces can bend the shafts permanently. Permanently bent shafts will change the product dimensions at every revolution of the shafts.

Drive system

Nowadays, roll forming lines are usually powered by electrical motors. The most common tyes of driving a roll forming machine are chain dirve and gear drive.

Chain Drive Roll Former

A chain drive roll forming machine for roofing panel

Gear Drive Roll Former

Gear box drive roll forming machine for cable tray production

Question 10

What affects the price of a roll forming machine? |Buy a Roll Forming Machine

Accepted Answer

What affects the price of a roll forming machine?

When we buy a cold roll forming machine, we always consider the price. How does the manufacturer price the machine? What factors have a direct relationship with the roll former price?

Here, as a sales manager of Brother Union Machinery, I briefly introduce these factors that have a close relationship with the machine price.
So that when you buy roll forming machines, I hope it is helpful for you to buy cost-effective machines.

The factors involved in the pricing of a cold roll forming machine:

1. The complexity of the roll forming line, that is, the complexity of the profile you need to produce.

If the profile to produce is more complex, then the customized roll forming machine is also more complex, and the roll stations required are more. The production cycle is longer the longer, it will take longer time to debug, and the after-sales service is more.

2. The size of the customized profile.

If a profile is small, then the customized roll forming machine size is relatively small, the roll material is less, the whole machine will be relatively small, the steel used and all equipment units will be smaller. The price of the machine is also relatively low. The transportation fees are also relatively lower.
On the contrary, the price of the machine will increase the cost correspondingly with the size of the profile you want to customize.

3. The degree of automation.

This will also increase the production cycle and debugging time of the machine, and the components to be added to the entire automatic line will also increase, such as automatic stacking machine, which will also increase the price of the entire machine.

4. Components brand

An international brand component has higher quality, but also with a higher price. For example, Normally a FESTO pneumatic cylinder's price is almost double of a normal brand cylinder.

5. The accuracy of the profile and its surface requirements.

The higher the requirements, the higher the precision of the roll forming machine. that means more complicated to produce it. For example, the profile surface requirement is very high, so the rollers also need to be polished or chrome-plated, which will increase the production cost of the roll.

6. The production output speed.

The higher the speed, the higher the requirements of the roll forming machine.

All of the above will have an impact on the price of cold roll forming machines. Therefore, before ordering the refrigeration bending machine equipment, you must put forward your own requirements for the above mentioned in detail with the manufacturer, so that the manufacturer can better price and provide better service.

Question 11

The advantage of steel framing profiles

Accepted Answer

The modulus of elasticity of steel profiles is 3 times that of aluminum alloys, and the strength of steel buildings far exceeds that of aluminum alloy profiles.

Steel profile has more span than aluminum alloy

Steel, glass, and concrete have almost the same thermal expansion coefficient, so there is no need to leave expansion joints when installing steel frame doors and windows

Steel frame door much better at fireproof, anti-theft, explosion-proof, and bulletproof.

The fireproof performance of steel frame doors and windows is far better than aluminum alloy. The melting point of steel is 1500°, and the melting point of aluminum alloy is 600°.

Steel will not melt when exposed to fire, will not release corrosive gases, and the frame will remain stable

Steel profile system can meet different fire protection requirements

The steel profile is strong and stable, high load, and durable, it is the ideal choice for security application.

Steel profiles are suitable for high-frequency operation, such as commercial fire-rated doors.

Question 12

Roll Forming Line Installation and Adjustment | Roll Forming Maintainence

Accepted Answer

Roll Forming Production Line Installation and Adjustment

Installation

Check the workshop foundation, it should fit to the drawing of roll forming line layout.

Check whether all the equipment is in good condition without damaged during the transporation.

Put each unit of the production line to its position according to the layout drawing

Align all unit centers roughly.

Adjust the horizontal level of each unit.

Fix each unit

Mechanical Adjustment

Firstly, Aligning and leveling the roll former, find out the exact forming center line. Align the uncoiler, leveling machine, punching machine, shearing device and others based on the roll forming center line.

If the center line and level is not exact, readjust them until the requirements are met.

Before start the machine, set the space between low roller and up roller. Normally the distance is equal to steel coil thickness, further micro-adjustment should be carried out in the trial production.

If the steel plate thickness changed, please reset the up roller to make sure the spaces are even.

Question 13

Selection of Roller Material | Roll Forming Basics

Accepted Answer

Selection of Roller Material

The general principle of selection of roll material is to fit to its application environment.

No material is to fit all applications. The normal “good material” has its Specific working conditions and technical requirements.

The wear resistance of a material not only depends on the material itself, but also has a great relationship with the wear conditions.?For the same material, the performance of different wear systems is quite different, and different working environments should use rollers of different materials.

In the specific selection of roll material should be considered from the following aspects

(1)The roller material should have high wear resistance and suitable hardness.

The abrasion resistance and hardness of the roll surface not only affect the service life of the roll but also affect the shape size and surface quality of rolled formed products.

(2)The roller material should have sufficient strength and toughness.

if the roll only has high wear resistance and hardness, without good strength (including fatigue strength) and toughness, the roller in the roll forming process may break or surface peeling, crack, affect the reliability and safety of the roll.

(3)The roller material must have certain cold machining and hot working performance

Cold machining refers to lathes, grinders, milling machines, drilling machines and other processing, while hot machining refers to casting, forging and heat treatment

Question 14

Classification Methods of Cold-roll formed profiles | Roll Forming Basics

Accepted Answer

There is no unified regulation or agreement on the classification methods of cold-formed steel products.

Generally speaking, cold roll formed steel profiles can be classified by the sectional shape characteristics of the products.

By the section shape, they can be roughly divided into the following three categories: open section section, closed section section and wide section.

1. open section section

Example: Door Frame Profile, C-Punrlin, Racking Upright, Racking Beam

2. closed section section

Example: Box Beam, Downspout

3. wide section

Example: Roofing Panel and Wall Siding, Decking

Question 15

How to check the roll forming machine quality good or bad?  | Buy a Roll Forming Machine

Accepted Answer

How to check the roll forming machine quality good or bad?

There are lots of things to consider when buying a roll forming machine. Here we only talk about same simply methods to indentify the roll forming machine quality good or bad?

1. Look at the appreance of the roll forming machine.

The first point is definitely to look at the appearance. You should carefully observe some subtleties, because the quality of the roll forming machine is often reflected in these small places.These details can reflect the manufacturer's level of technology and management.

2. Touch and feel the vibration of roll forming machines.

Normally a roll former with strong base means higher precision and longer life. Just feel the working vibration when roll forming machine running. It is an easy way to identify low quality equipment.

3. Listen to the working noise.

Normally a good roll former has lower noise when running.

4. Check the roll formed profiles quality.

Check the formed profiles, it is the most direct way to identify the roll former qualified or not. Although some of the equipment will deform after working for a period of time and the size of the product will change, at least it can be determined that the new equipment is still usable.

5. Ask qustions about roll forming machine maintanence.

A good design roll forming machine, from the beginning of the design, manufacturer has considering to minimize the installation and maintenance costs. e.g. center alignment, a good roll forming line is much easier to do the certer aligning in less time.

6. Roller Materials

Roller is a key part of roll forming machine, high quality roll not only means high precision machining, but also appropriate quality steel with professional heat treatment.

The above are some small tips to check the roll former quality. We hope it is helpful for you to buy a new roll forming machine.

Question 16

General Maintenance Guide for Roll Forming Machines | Roll Froming Machine Maintenance

Accepted Answer

Keep the roll forming line in good working condition is Maintenance engineer's first priority, Keep each machine in the metal forming line running efficiently with shortest breakdown time. Maintain the machine running smoothly to reach a high level of productivity, it is save time and money for the company.

1. The maintenance personals should be adequately prepared and qualified in maintenance operation of the roll forming machine

2. Maintain the roll forming working area in order and clean. Roll dies should not bump. In order to protect the roller dies, the raw sheet metal should be relative flat without too much bending or foreign matters.

3. Every day when starting up, first let the roll forming line empty run, after checking, then feeding metal coil and start production.

4. Regular Lubricant to bearings, chains,guide rails in roll forming machines, oiled the machine at marked lubrication points.

5. Maintain the hydraulic system of roll forming machine.

Question 17

The advantages and disadvantages of roll forming | Roll Forming Basics

Accepted Answer

Generally speaking, roll forming is a high-speed method of bending coiled metal into a custom designed metal shape by passing a metal strip through a series of roll dies. The process produces a metal profile with a uniform cross section along its entire length.

The metal, which starts out flat, is fed from a coil into a configuration of roll die stations or passed. At each pass the metal is progrressively bend until the final profile emerges.

The advantages of roll forming

The advantages of roll forming are speed, economy of scale, the ability to eliminate and incorporate secondary operation such as punching and notching in-line, the ability to form both simple and complex shapes, and the ability to produce extra long shapes that can not fit into a brake press.

1. Holding tighter tolerances

2. quick change-over for multiple lengths

3. minimize material handling

4. save floor space

5. standard shapes(such as U-channels, angles, hat sections, box channels) are often available with minimal or not tooling cost.

The disadvantages of roll forming

The process does not lend itself to small quantity production runs.

1. set-up times can vary between a few hours to a couple of days.

2. excessive set-up scrap

3. higher tooling costs

Roll Forming VS Brake Forming
Roll Forming	Conventional Sheet Metal Fabrication
Typically holds tighter tolerances	Typically holds looser tolerances
Inline punching,notching,etc - elimates secondary operation	Mutiple operation required - shearing, notching, perforating, etc.
Complex shapes	Simple shapes
Longer part lengths	Most brake parts have limited length
High-speed production	Slower production speed
Lower labor costs	Higher labor costs
Potentially higher tooling costs	Potentially lower tooling costs
Longer set-up time	Shorter set-up time
Potentially more scrap	Potentially less scrap

Professional Roll Forming Machines Manufacturer

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Roll Forming for Power & Energy

Other Roll Forming Solutions

Successful Roll Forming Cases

ABOUT BROTHER UNION ROLL FORMING MACHINERY

TOGETHER, FORMING OUR METAL PROFILES !

Professional Roll Forming Machine Manufacturer

Profile Drawings Example for Custom Roll Forming Machine