Dealing with the conveyor belt industry, you must have heard about multi-ply fabric rubber conveyor belts, which are the most common and used items in any application where bulk material handling is involved.
According to SIG nomenclature, this product is identified as TEXTER, composed of nylon and polyester layers that ensure all the necessary mechanical properties. Talking in detail, any single layer of the inner carcass is manufactured with a polyester warp and nylon weft.
Here below, you are shown a brief table that summarizes all different TEXTER manufacturing standards depending on the required breaking load and plies number as well.
EP BELT STYLE N/mm (CLASSES) | PLIES NUMBER | FABRIC RANGE N/mm |
250/ 2 | 2 | 125 |
315/2 | 2 | 160 |
400/3 | 3 | 125 |
500/3 | 3 | 160 |
500/4 | 4 | 125 |
630/3 | 3 | 100 |
630/4 | 4 | 160 |
800/3 | 3 | 250 |
800/4 | 4 | 200 |
1000/3 | 3 | 315 |
1000/4 | 4 | 250 |
1000/5 | 5 | 200 |
1250/3 | 3 | 400 |
1250/4 | 4 | 315 |
1250/5 | 5 | 250 |
1600/4 | 4 | 400 |
1600/5 | 5 | 315 |
2000/4 | 4 | 500 |
2000/5 | 5 | 400 |
2500/5 | 5 | 500 |
3150/6 | 6 | 500 |
If we focus on mechanical properties only, as chemical ones depending on specific rubber compounds will be analyzed later, EP rubber conveyor belts can let end users take advantage of an incredible number of mechanic characteristics, such as:
For everything concerned, EP rubber conveyor belts are designed to be a unique and universal solution for many different industrial applications, assuring excellent performances thanks to specific mechanical characteristics that can let it adapt itself to any handling situation, minimizing economic impact while maximizing working efficiency.
Up to this moment, only mechanical characteristics have been analyzed and studied, nonetheless, any rubber conveyor belt is identified through another highly important aspect: the one concerning its chemical composition and properties of rubber compound as well.
As a matter of fact, any TEXTER is composed of an inner EP carcass and two rubber covers: one on the top side and the other one at the bottom that highlight some specific chemical properties. Depending on the concerned industrial application, it is possible to choose between many different rubber compounds that guarantee different and specific characteristics matching end-user technical requirements.
Abrasion or heat-resistant, flame-retardant, mineral, and vegetable-oil-resistant are only some of the available rubber compounds that have been developed by SIG technical departments to meet with international market's different and increasing needs.
Normally, it is possible to identify four main rubber compound categories inside which different degrees are available. The final choice depends on customer-specific requirements that may differ due to conveyor system design or handled material.
It is the most common and used rubber compound in the conveyor belt industry worldwide; it can be used for many different industrial applications to handle completely different materials. Nonetheless, it is available in three options depending on the required abrasion loss.
Depending on the application and its safety requirement, it is possible to choose between two different options that are not complementary, but they answer specific needs that must be respected.
This kind of rubber compound is mostly used in the cement and steel industry where handled material may undergo specific heating processes at different temperature levels. It is therefore possible to choose between:
Inside this category, it is possible to identify four different options, any of which has a special characteristic that can find the source of application inside specific industrial fields:
For more details and product specifications download the following TEXTER catalogue.
Referring to all the different available rubber compounds and all the mechanical properties that you can take advantage of when relying on an EP carcass rubber conveyor belt, you should not be surprised to discover that TEXTER can be used to accomplish completely different tasks in many industrial applications.
To summarise what has been said up to now about TEXTER different and possible industrial applications, please, consider what follows:
TEXTER carcass construction and different specific rubber compounds have been above analyzed, it is now necessary to deal with the last technical element about EP rubber conveyor belts (except for length and width of course).
Belt top and bottom cover thickness is a crucial factor to be considered: as a matter of fact, SIG manufacturing standard expects a minimum overall thickness of 6,5mm (and a maximum one of 35mm) therefore, when designing this kind of items, it is necessary to respect such limit.
Have you ever asked yourself what a top cover task is? This one is in direct contact with handled material, and it has therefore the task of protecting the belt's inner carcass from any kind of external material potential damage or impact.
Thus, if you have to face a demanding application where a highly abrasive material has to be handled, it would be necessary to manufacture your belt with an extremely abrasion-resistant rubber compound (perhaps EC or AS one) meanwhile producing the belt with a high-top cover.
As you should have understood, the grain industry is for sure an application where SIG TEXTER can stand for an extremely reliable solution for bulk material handling, especially the ones manufactured in AG (flame and oil-resistant rubber compound). Such items have always guaranteed excellent performances, satisfying customer’s expectations.
Last year, an important French customer active in the agroindustry was provided with more than one km and a half of TEXTER 500/3 4+2 AG, 1000mm wide.
This belt is fully operational, matching all the requirements it has been designed for, guaranteeing a handling capacity of 600 tons/hour.
Sulfur handling represents another industrial field where SIG has proved to be an important supplier, always managing to find the right solution for customers’ needs.
A few years ago, SIG was able to provide an Italian OEM company with different flame-resistant (BS) EP belts to be installed as part of offshore transshipment equipment for sulfur handling.
The installation had to guarantee a handling capacity of 750 sulfur tons/hours, but the remarkable data was about matching with ATEX requirements because of its flammability. Therefore, the SIG technical department suggested the following constructions (that would be adopted later):
If you are looking for a high-tech EP carcass rubber conveyor belt facing the most demanding industrial applications, please, get in touch at sig@sig.it and request our technical and commercial support!
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