Flexobord belts are based on the following main components:

• Base belt
• Sidewalls
• Cleats

The correct choice of each component in relation to the final use is one of the most important contribution to the overall plant performances. The complete range of SIG Rubber Conveyor Belts is produced according to the international standards; therefore the cross reinforcement of the carcass ensures the necessary transversal stiffness and prevents from hitting the full width return idlers.

Sketches on the right show typical but not exhaustive Flexobord layouts; the belt designer must take into consideration these alternatives to guarantee correct plant performances.

Bài viết FLEXOBORD® SIG đã xuất hiện đầu tiên vào ngày Công ty Thiết bị công nghiệp và Tự động hóa AUMI.

As shown in the drawing of this page, ARABELT® is a rubber conveyor belt characterized by only one ply with a special construction named “straight warp”.

This is a special weaving where the longitudinal filaments (warp) are not braided with the transversal ones (weft); furthermore, the connection between warp and weft is assured by a special nylon binder. In this way, both warp and weft are straight, with two main advantages: no elongation due to the weaving of fibres and possibility to connect big warp and weft filaments with each other.

This second aspect guarantees high tensile strength and superior cutting, tearing and impact resistance thanks to the presence of a double weft realized with high tensile nylon filaments.

SPECIAL TEXTILE CONVEYOR BELTS: THE ARAMID FIBER

The advantages of straight warp construction are emphasized by the aramid fiber forming the longitudinal filaments. Aramid is a sintetic fibre whose molecule is a combination between the rigid aromatic structure of polyester and the chain links of polyamide; the result is an aromatic polyamide with higher strength and very low elongation.

These two characteristics are so stunning for a sintetic fibre that aramid is comparable to steel, but with a very important difference: a density more than five times lower. Two other properties make aramid similar to steel: high heat and flame resistance.

Further considerations on the differences between aramid and steel can be found at section “comparative graphics”.

Bài viết ARABELT® SIG đã xuất hiện đầu tiên vào ngày Công ty Thiết bị công nghiệp và Tự động hóa AUMI.

Textbind double unit

• Texbind belts have been originally designed as an universal mining conveyor belting to provide maximum flexibility together with high resistance.
• Now, Texbind are available as profitable alternative of EP multiply conveyor belts in case of heavy applications where impacts with big-sized materials are present.
• Texbind is composed of a single ply carcass which provides the mechanical characteristics of the belt, protected by two rubber covers which define the typology of use of the belt.
• In case of extreme applications where high tensions in the textile carcass add to heavy and hard working conditions, with big lump materials falling on the belt surface from considerable heights, a special version with two textile layers is available; with this construction the already superior resistance against impacts, typical of the straight warp construction, is multiplied for a factor higher than 2, thanks to the perfect synergy guaranteed by the intermediate rubber layer specifically designed to distribute the impact energy between the two layers.
• Rubber covers are tipically wear resistant or selfextinguishing; however, also oil proof and heat resistant realizations are available, on request.

Main Advantages

• High impact, tear and cutting resistance thanks to its special double reinforced weft
• Superior longitudinal flexibility that allows smaller pulleys
• Very low permanent elongation guaranteed by straight warp construction
• High efficiency with mechanical jointing

Straight Warp Construction

• The EpP weaving has been introduced for rubber conveyor belts in order to overcome the limitations of standard EP multiply belts of medium-high style: high elongation, weak weft resistance for heavy applications, high thickness with consequent belt stiffness and possibility of ply separation.
• In fact, the straight warp allows to reduce elongation as no weave in the filament is present, the double weft allows to highly improve the fabric resistance against impacts and tears; moreover, the monoply construction makes the belt carcass thinner and deletes any possible ply separation.

Bài viết TEXBIND® SIG đã xuất hiện đầu tiên vào ngày Công ty Thiết bị công nghiệp và Tự động hóa AUMI.

• Polyester – Nylon carcass
• Reinforced cut edges
• Excellent adhesion between plies and covers
• Complete tension style
• Wide selection of cover compounds
• Very low permanent elongations
• Maximum load support
• High resistance to tear and cutting
• Good impact resistance
• Apt to mechanical fasteners
• Humidity proof

Cover Characteristics

ABRASION SERVICE

• CL (L grade ISO 10247 – Y grade DIN 22102 – RMA II grade) – Standard abrasion resistant compound. CL is a cover rubber recommended for all ground applications and for the majority part of the materials, where resistance to abrasion is required. Conveyor belts with CL compound are suitable to handle heavy and/or abrasive materials such as gravel, stone, sand, aggregates, coal, cement, etc.
• EC (D grade ISO 10247 – W grade DIN 22102 – RMA I grade) – Extra abrasion resistant compound. EC is a superior quality cover rubber, especially designed where maximum resistance to abrasion is required. The characteristics of resistance to cut, tear and ozone cracking, together with long duration, improve the quality of this cover. EC is expressly recommended for steel works and iron mines; however, it is recommended for heavy lump ore, coke, salt, limestone too.
• SC (H grade ISO 10247 – X grade DIN 22102) – Superior cutting resistance compound. SC is a cover rubber designed for specific use when the resistance to cut and tear is the most important requirement. SC also guarantees high abrasion resistance. Main applications are quartz and cullet conveyance.
• AS – Rubber cover for extreme applications. AS rubber cover is studied to offer the maximum abrasion resistance in all the applications, where an increase in the standard abrasion resistant conveyor’s service life is required. Moreover, its excellent mechanical characteristics allow a superior tearing and cut resistance, which permits its use with heavy materials, i.e. big-sized minerals, bauxite, etc. or in critical working situations characterized by atypical loading/unloading systems. AS grants and surpasses grade W – DIN 22102 and D – ISO 10247 assuring an abrasion resistance of 30-50 mm3.

SELF-EXTINGUISH

• BS – Self-extinguish compound. BS is a cover rubber designed to service both underground and above ground application where safety is fundamental and fire risk is high. It is recommended in particular for coal and potash applications. BS compound is self-extinguish and antistatic according ISO 340 and ISO 284, equivalent Grade K DIN 22102.
• TS – Selfexstinguish compound. TS is a product typology designed to service both underground and above ground applications. It is highly recommended for the belt conveyors located in the back areas of the tunnels. TS is designed according to ISO 284 and ISO 340, equivalent Grade S DIN 22102.
• TV – Fireproof compound. TV is a belt typology designed to work in underground applications where it is necessary that the belt does not burn and does not trigger centres of fire. It is recommended for the belt conveyors located close to the permanent work-stations in the tunnels. TV is designed according to ISO 284, ISO 340 and DIN 22100-1.
• AG – Self-extinguish and oil resistant compound. AG is a nitrile rubber suitable for conveyor belts and bucket elevator systems of cereal terminals and silos. AG cover rubber provides superior resistances to vegetable oils and animal fats; it is also self-extinguish and antistatic according to ISO 340 and ISO 284, equivalent to K grade of DIN 22012 in order to guarantee high safety to the conveyor plant.

OIL SERVICE

• OM (G grade DIN 22102) – Vegetable oil resistance compound. OM is a cover rubber that guarantees a good belt resistance against the chemically aggressive effects due to the transport of materials with moderate oil presence, like corn, fertilizers and general vegetable oily materials. OM is expressly designed to resist the terpene of wooden chips and to convey solid urban waste materials.
• OH – High oil resistance compound. OH is a premium quality cover rubber with maximum resistance to oils and characterized by low volume variations after immersion in highly aggressive mineral oils. OH is expressly realized for belts conveying materials sodden with mineral oils, as for example the mechanical manufacturing rejects.
• PL – Oil and heat resistant cover. PL is a covering compound designed specifically for the handling of petroleum coke during the production process where the material can reach temperatures of 120 ° C. The composition of the compound based on nitrile polymer also ensures good resistance to oils.

HEAT SERVICE

• CX – Medium temperature resistance. CX is a rubber compound assuring a medium degree of abrasion resistance; it is formulated for continuous service with hot coarsematerials at a temperature of 130 °C with peaks of 150 °C.
• MX – High temperature resistance. MX is a rubber compound assuring a good abrasion resistance. It is
• designed for continous service at temperature of 150 °C with peaks of 180 °C.
• TX – Superior temperature resistance. TX is a cover rubber that assures the maximum heat resistance for a rubber compound. It is designed to resist with coarse materials at a maximum working temperature of 200 °C with peaks of 300 °C.

All types of conveyor belts produced by SIG SpA are realized according to ISO standards; furthermore, they meet also the requirements of equivalent UNI, DIN, BS, NF, ASTM and RMA standards.

Cover Selection

Bài viết TEXTER® SIG đã xuất hiện đầu tiên vào ngày Công ty Thiết bị công nghiệp và Tự động hóa AUMI.

Cleat height 15 mm

SIG reserves the right to introduce at any time such modification as would seem justified by continual development and improvement.

Dimensional tolerances: ISO 251

The present edition cancels and replaces the previous ones

SPINATEX G15

Cleat height 15 mm

SIG reserves the right to introduce at any time such modification as would seem justified by continual development and improvement.

Dimensional tolerances: ISO 251

The present edition cancels and replaces the previous ones

SPINATEX G25

Cleat height 25 mm

SIG reserves the right to introduce at any time such modification as would seem justified by continual development and improvement.

Dimensional tolerances: ISO 251

The present edition cancels and replaces the previous ones

Bài viết SPINATEX® SIG đã xuất hiện đầu tiên vào ngày Công ty Thiết bị công nghiệp và Tự động hóa AUMI.