DUPLEX ROLL FORMING LINES
Duplex roll forming lines are special roll forming machines utilised for the roll forming of material with an optional width of up to 1,500 mm. The primary purpose of these machines is for forming panel-type products with an emphasis on rapid changes of width.
We will design and manufacture a roll forming line and roll forming tools for you, in accordance with your requirements.
The line will be designed and manufactured in accordance with your requirements in respect to the number of roll forming stations required, and also the maximum strip width and thickness of the processed material.
Our machinery is of modern design, powered by units with continuous speed control, the torque of which is transmitted through a central gearbox to the single shafts. Other equipment, for example for punching, bending or cutting, is usually powered hydraulically or pneumatically. The entire system, based on the customer’s wishes, is controlled by automation at the level selected.
Decoiling
In accordance with the customer's request, unwinding equipment of various tonnage and technical implementation can be manufactured. This ranges from simple vertical decoilers with a capacity of 1,000 kilograms to complex rotary decoilers with a capacity of 2 x 2000 kilograms.
Loop creating device
This device serves for the creation and maintenance of sheet metal loop directly prior to engaging the pressing equipment.
Pre-punching
Depending on the type of profile and its complexity, pressing of various holes and pre-cuts may be carried out prior to the actual roll forming.
Feeding
A feeding device for metal strips is implemented for the precise feeding of metal into the machine and for maintaining of position during the roll forming. It may be of varying design, as required for each specific shape of the profile.
Roll forming
The actual roll forming technology whereby the sheet metal strip passes through several pairs of forming rollers, which progressively shape the final product. These tools are designed using special computing methods and software and are subsequently manufactured with the assistance of the most up-to-date CNC technology, in order to achieve the highest quality. The dimensions and number of roll forming stands always depend on the complexity and the size of the resultant shape of the profile. In case of these machines there is a fixed pitch of the forming shafts; therefore it is not possible to adjust the upper roll forming shaft in relation to the lower one.
Straightening head
At the end of the actual roll forming line, there is always a straightening head included, with which it is possible to achieve the perfect straightening of the manufactured profile. In accordance with the customer’s requirements, the final profile can also be roll-bent or otherwise shaped.
Final pressing and punching
If critical importance is placed on the final precise positioning of the pressed holes, the pressing is usually performed after the actual roll forming process. Bending can also be included at this point.
Shearing and cutting
Cutting of the finished profile is accomplished either by shearing or by cutting. Both options can be done either “flying” or in the “START-STOP” system.
Run-out table
Completed and already cut profile leave the line and move onto the run-out table. From there it is transferred to the prepared pallet. The machines can be equipped with automatic packing and packaging systems.
Switch board and line control system
According to the customer’s requirements, the line can be controlled using various levels of automation, including the option of connection to the company’s central control system.