Cold vulcanized splicing: this type of splicing can be used in
the majority of conveyor belt applications when the transported product or the room
temperature does not exceed 175 to 185 ° F.
We use the finest vulcanized cement available in the industry and we follow the
company procedure.
This splicing procedure can be done in 6 steps:
- Planning
- Stabilization of the belt
- Alignment and measure of the splice
- Cutting and ripping
- Polishing and adjustment
- Immobilization and vulcanization of the splice
It is important to know that a drying period of 24 hours is required to complete
the chemical vulcanization of the splice. Furthermore, with this type of application,
the belt can often be used again only 8 hours after the splicing.
Hot vulcanized splicing: this kind of splicing can be used for
all applications of conveyor belts, more specifically when the transported product
or the room temperature exceeds 175 to 185 °F.
It is important to know that this type of splicing is recommended by belt manufacturers
like Fenner Dunlop. The quality of hot vulcanized splicing depends on the material
used. We work exclusively with Fenner Dunlop high quality products (cushing and
cement).
The splicing technique is also very important. We follow the technical working procedure
established by Fenner Dunlop. This procedure has some similarity with cold splicing;
however it differs in the process of vulcanization because we use a hot press (vulcanizer)
to cure the splice together.
The use of the vulcanizer is important. It requires 550 Voltage as well as a water
plug for the cooling procedure. Unlike cold vulcanized splice, hot vulcanized splice
does not need drying and the belt can be used immediately after splicing.
In the hot vulcanized splice category, we can also offer finger splices, which support up to 96% of the nominal tension of the belt, compared to a 75% maximum for a regular overlapped splice for multi-lies belts. This type of splice is more flexible and provides greater strength in applications with small diameter pulleys or where there is a short transition distance at the head or at the tail of the conveyor. The schematic and picture below show the configuration of this type of splice:
Mechanical splicing: this type of splicing can be used for all
conveyor belt applications. It is used mostly when the working space is tight (and
does not allow vulcanized splicing) or when shutdown time is limited and the conveyor
has to be shut down quickly.
We have been working with the excellent Flexco products for many years. Flexco offers
different types of splices. Therefore, it is important to make the right choice,
depending on the type of belt, conveyor specifications and application.
The installation of a mechanical splice is done in 4 steps:
- Planning
- Stabilization of the belt
- Alignment and measure of the splice
- Immobilization and splicing
It is important to note that a mechanical splice is more economical than a vulcanized
splice. It also requires fewer tools and is simpler to use. However, it does not
offer the same durability as a vulcanized splice and is considered to be a short-term
solution.
