Cold Roll Forming Technology

Roll forming machinery technology consists of a continuous cold rolling and bending operation, with metal products roll formed at room temperature, where strip metal is transformed along a linear axis. Cold roll-formed sections have a much wider scope of cross section when compared with press braked sections and there is no length limitation. Production is much faster than with press brakes. The decision to roll or press brake depends largely on economics; in general the greater the quantity of given section required, the cheaper it is to form by rolling. Custom roll forming combines design, engineering expertise and roll forming technology to produce metal parts to meet specific needs. It covers various industries, i.e., automotive, appliance, building trades, window and door industry, HVAC, lighting, and office furniture. Roll forming is also used to manufacture rolling and garage doors, shelving and racking, slides and tack, toolboxes, cable tracks, and other custom products.

A Brief Introduction of the Cold Roll Forming Machine
The sheet metal cold roll forming machines are furnished with special equipment and extend the scope of supply to embrace complete roll form systems or production lines. The components for the roll forming equipment are designed to comply with the customer's individual requirements.

The standard configuration roll-forming line is composed of several basic units:

De-winding	Straightening head of roll forming line
Sheet metal loop creating equipment	Pressing and hole punching
Pre-punching system on roll forming line	Shearing and press cutting equipment
Material feeding device	Run-out table for roll forming line
Main roll-forming machine

General Cold Roll Forming Machine
The roll forming machines can be equipped with a large variety of components to suit the customer's need. The roll former or the more complex roll forming lines are usually supplied with rollers that are the core of cold roll forming technology. The technical specifications for our roll forming machines are as follows:

Fixed Type Roll Forming Machine-----One Size Only
ONLY one type of profile can be produced by this roll forming line.

This type of roll forming line is the most popular in the present market, and can be used in different industries.

If customer has a large quantity items to be produced and has a large production space, this roll forming equipment is the best option. No time is wasted replacing the mold and adjusting the line.

There are several kinds of the fixed type roll forming machine. The details are as follows:

Machine Table Style: Casting steel frame and steel plate frame

Driving Method: Chain drive, gears drive, cardan shaft and gear driving (double envelope worm gear boxes, or only down transmission form)

We can design one or two profiles produced by one of this kind roll forming machine with different roll forming machine systems, such as the different driving system with chain drive, direct gear, or with cardan shaft, etc. in accordance with the customer's budget and requirement.

Duplex Roll-Former Machines---Roll-Former with Fix or Mobile Shoulders
The double duplex roll-formers are also called roll-formers with fix or mobile shoulders. The range of duplex roll-forming machines is designed to roll-form sections onto both sides of the panel simultaneously. Roll-forming machines are constructed with one fixed head and one adjustable head to allow varying widths of sheets to be formed. Since applications vary so greatly, machines are custom built to take differing requirements into account.

For panel applications, a twin head machine can be supplied with variable distance between the forming standards to allow different widths of panel to be formed simultaneously on both sides. If your product range contains many similar profiles with varying widths and heights, the double duplex roll-formers may be exactly the right choice for you.

Quick Change Table Type Roll Forming Machine - Roll-Former with Cassette System for Quick Change
Rapid change rafting provides complete roll change-overs in minutes. Advantage: Less downtime.
System of quick-change cassettes.

In order to save time on exchanging and setting different rollforming rolls on the same machine, the line can be equipped with the quick-change cassettes. This involves the removal of the whole rollforming section, including the set tools and replacement with another. This procedure can help to significantly decrease the time it takes to exchange a manufactured section.

This is a rafted roll forming system. This system is used when differing profiles are needed to be formed with a quick change facility. Rafts of several passes are lifted in and out of position to allow the common drive chassis to be used to the full roll forming industry.

It's the roll forming equipment easily accepted by clients. The biggest advantage of such forming machines is no need to be adjusted, so the running cost will be lower than the common roll forming machines. The different rafted system can be changed very fast.

Changeable Type Roll Forming Machine
The roller set on such roll forming line can be easily removed and replaced with the new roller, with its special design. This enables the production of different product profiles in the same machine without performing re-alignment.

Quick change roll forming line offers changeover flexibility. Designed for light gauge materials. Remove existing shafts with rollers, spacers, and replace them with the next complete set of rolls, spacers. Changing stations takes approximately 20 minutes or less for complete changeover.

This kind line should be according the actual profiles. The best solution for the profiles making machines can be sent according to clients'request.

Advantage of Roll Forming
Roll forming technology offers a number of distinct advantages over other metal fabricating methods. Advantages include:

The initial cost of a roll forming line is no more, and often less, than the cost of a standard stamping line or progressive die operation.

Production speeds of 50-600 feet per minute can be attained but 100-180 feet per minute is a reasonable average for most current equipment. Roll forming is a high volume process that makes uniform and accurately dimensioned parts.

Parts are produced with little handling, minimizing labor costs, needing only the coils to be loaded at the starting end of the machine and removal of finished parts at the other end. This process can usually be handled with a minimal number of operators.

Limitations
A few limitations exist. Roll forming limitations include:

1. Experienced roll design engineers must design those rolls designed for complex shape forming.
2. Complicated tubular shapes and some closed shapes may need mandrels to form the shape accurately.
3. Delicate and breakable, machine parts may need replacement during high volume production runs.

Cold Roll Forming Products Application
The general metal sheet profiles manufactured with HC Roll Forming Machine Co.,Ltd roll forming machines are as follows:

Automotive; Construction; Display Industry; Farming; Food Services; Fencing; Furniture; HVAC; Lawn & Garden; Lighting, Material Handling; Mining; Shelving; Store Fixture; Sporting Goods; Transportation, Ceiling Systems, etc.

We manufacture many standard and custom roll formed profiles. An unlimited number of different sections can be manufactured with the cold roll forming process: Open section, closed-seamed section, closed clinched sections, closed HF-welded section, and pre-punched section. We provide cold roll forming machines and equipment for all types of industries. Roll manufactures customized roll formed products, roll formed shapes include angles, struts, C-channel, U-channel, T-shapes, hat sections, and round Z-shapes. Decorative sheet roll forming machine.

We invite your inquiry for any of Roll Formed Profiles making machine requirement. Let us know your requirements and we will send you the best solutions according to your request.