Roll forming stand plays a big role in roll forming, which is a continuous bending process. During the operation, sorts of metal sheets passe through sets of rolls, and the rolls are mounted on the consecutive forming stands.
BRIEF INTRODUCTION ABOUT ROLL FORMING STAND
Roll forming stands typically support rolling tools. Everyone knows a little bit about roll forming after reading our article WHAT IS ROLL FORMING? and will understand that rolling tools consist of rollers, spacers, shafts, bearings and slides. The rolling tools have to be mounted on the stands so that they can work functionally. Overall, to roll forming machine manufacturers, there are different roll forming stands working for different applications as following:
- Integrated type roll forming stand
- Independent type roll forming stand
Integrated type roll forming stand
Firstly, Integrated Stands are typically for roll forming machines that bending thin materials less than 1.5mm thickness. The forming stands are made of steel plates, welded on the machine base structure (H Beam steel mostly).
Besides, this type roll forming stand looks more like walls of the machine, therefore sometimes they are called wall plate type. Depending on the material specifications, the thickness of the wall plate varies from 16mm to 22mm. Like the figure 1-A, the fabricated steel plates have been welded on each base with blanks left for mounting rolling tools.
Furthermore, the roll forming machine with Integrated stands usually works at low speed and costs lower than other type stands. In case there are any troubles occured, and need to do some adjustment on rollers, just to make adjustment on the rollers with trouble is fine.
Independent type roll forming stand
There are two different structures for independent type roll forming stands: one is Guide Pillar structure, and the other one is Torii structure (it looks like a Torii gate). Both structures are independent type forming stands, but they work for different applications. Therefore, a roll forming machine supplier has to specify which structure they use, instead of just mentioning ‘Independent type stands’.
The Guide Pillar (See Figure 2-A) structure works for the same applications as the Integrated stand does. Mostly, the Guide Pillar stands are applied for high-end roll forming lines for making metal sheets and decking. Besides, we can see such structure on some high-precision roll forming lines as well.
However, different from Integrated stands, the slides and the close bar mounded on the Guide Pillar stands are always electroplated with decorative chromes. As a result, the roll former with Guide Pillar stands look always more beautiful, and cost higher than Integrated stands roll formers.
Speaking of heavy-duty roll forming machines, the suppliers will always go to Torii design. This design looks like the traditional Torii gate, which is quite common in East Asia (See Figure 3-A). The Torii design stand works well for Heavy-duty Roll Formers. The steel frame of the Torii stands usually reach 30mm-70mm thickness, highly ensure the roll former run stable.
In China, few of roll forming machine manufactures apply Torii Design Stands (See Figure 4-A), because this design really costs a lot. And for foreign customers, barely do they trust Chinese companies on the heavy-duty roll formers manufacturing. MAXON® has been experienced in Torii design stands for many machines, like Guardrail roll former, strut channel roll former and elevator guide rail roll former etc.
On the other hand, MAXON® is technically capable of designing sorts of customized roll formers, as a result there are some other forming stands applied. The most common roll forming stands variation would be the BOX type stands, mainly for width adjustable roll former and rafter roll formers. It’s so simple to understand about BOX stands which are more like double integrated stands. Try to think about it, drop the wall plates from two sides close enough until the chain-sprockets transmission put inside, and then seal the top with a plate. Finally, there are BOX stands as below pictures.
To sum up, the above are the 3 most popular forming stands desiging for roll forming machine manufactures. And they will apply different design to meet different roll forming needs or results.
You may contact MAXON® for any roll forming questions and we’d love to answer that.