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Metso Corporation
FLEXOCORD® Steelcord Conveyor Belts Brochure

FLEXOCORD® Steelcord Conveyor Belts Brochure

Product catalog summary

Introduction
FLEXOCORD® Steelcord Conveyor Belts are engineered for cost efficiency and reliability, backed by over 110 years of experience. Metso offers comprehensive services including design, engineering, installation, and maintenance to ensure optimal return on investment.

Advantages of Steelcord Conveyor Belts
These belts are suitable for long, high-tension, or heavy-duty applications, providing enhanced safety, extended service life, and reduced component sizes due to high splice strength. They also offer higher impact resistance, increased conveyor lengths, and improved conveying capacity.

Belt Construction
The belt carcass integrity is ensured by a strong bond between core rubber and metallic surfaces, with regular quality tests. Standard cords have an elongation of 0.22 to 0.28%, and special designs include hot-galvanized cords for superior bonding.

Covers and Breakers
Covers made from natural or synthetic rubber offer high wear resistance and protection against ageing and ozone. Optional textile or steel breaker plies enhance impact resistance.

Specifications
The FLEXOCORD® range adheres to DIN 22131 and EN ISO 15236 standards, with specifications including operating tension, cord diameter, strength, and belt weight. The range covers various belt widths and steelcord numbers.

Cover Grades
Metso provides rubber grades according to international standards, resistant to ozone, UV, and ageing. Options include wear-resistant, flame-resistant, and heat-resistant grades, tailored to material characteristics and operating conditions.

Splicing
Splicing is conducted through hot-vulcanization, with splice length and steps based on belt rating. Proper procedures and materials are crucial for quality splicing.

Pulley Diameters
Recommended pulley diameters depend on steelcord diameter, belt tension, and deflection angle, categorized by function and tension levels.

Transition Lengths and Take-Up Systems
Transition lengths are calculated based on troughing angle and arrangement. The low elongation of steelcord belts necessitates specific take-up system designs, considering travel and surplus length for adjustments.

Specifications

Conveying Capacity: Measured in tons per hour (t/h), dependent on material type.
Center Distance: Measured in meters (m).
Bulk Density: Measured in tons per cubic meter (t/m3).
Lift Height: Measured in meters (m).
Temperature: Operating temperature in degrees Celsius (°C).
Belt Width: Measured in millimeters (mm).
Material Size: Measured in millimeters (mm).
Speed: Measured in meters per second (m/s).
Material Characteristics: Includes properties like abrasiveness, chemical aggressiveness, oil/grease presence.
Operating Time: Measured in hours per day (h/d).
Ambient Temperature: Measured in degrees Celsius (°C).
Drop Height: Measured in meters (m).

Drive and Idler Stations

Position/Number: Details on the arrangement and number of stations.
Troughing Angle: Measured in degrees (°).
Motor Power: Measured in kilowatts (kW).
Idler Weight: Carrying and return weights measured in kilograms (kg).
Angle of Wrap: Measured in degrees (°).
Pulley Lagging: Details on pitch and carrying/return measurements in meters (m).
Torque Reduction Device: Includes options like fluid coupling or frequency converter.
Outer Diameter: Carrying and return diameters measured in millimeters (mm).

Take-up System

Type: Options include weight or screw types.
Position: Details on endless length measured in meters (m).
Take-up Weight: Measured in tons (t).
Reinforcement Type: Details on tensile strength measured in N/mm.
Cover Thickness: Measured in millimeters (mm).
Pulley Diameter: Details on cover grade and specific pulley measurements in millimeters (mm).

Contact Information

Metso Germany GmbH: Located in Düsseldorf, Germany. Phone: +49 211 2105 0, Fax: +49 211 2105 376.
Metso Sweden AB: Located in Trelleborg, Sweden. Phone: +46 410 525 00, Fax: +46 410 526 02.
For local representative contact, visit www.metso.com.

Additional Notes

Subject to alteration without prior notice.
Brochure No. 2278-02-09-MBL/Trelleborg-English © 2016 Metso.
Printed in Sweden.

Catalog excerpts

FLEXOCORD® Steelcord Conveyor Belts Brochure-1

Conveyor Solutions FLEXOCORD® Steelcord Conveyor Belts EN

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FLEXOCORD® Steelcord Conveyor Belts Brochure-2

Based on more than 110 years of experience in development, manufacturing and application know-how, FLEXOCORD® Conveyor Belts meet specific end-user requirements for cost efficiency and reliability. With subsidiaries in more than 50 countries, and more than 80 service centers in all parts of the world, Metso participates in the design, engineering, installation and service, thereby ensuring a maximum return on the customer's investment. Within the FLEXOCORD® product range, steelcord belts are the ideal choice for long, high-tension or heavy-duty installations. Enhanced safety and service life...

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FLEXOCORD® Steelcord Conveyor Belts Brochure-3

Carcass Hot-galvanized steelcords, laid in alternate directions. Belt construction Covers High wear resistance, good ageing and ozone resistance with covers made from natural or synthetic rubber. Breaker Optionally the belt can be manufactured with textile or steel breaker plies to improve impact resistance. Core rubber Excellent adhesion to galvanized steel- — cord and cover, improved steelcord impregnation, high structural strength and shear modulus, resistance to heating and fatigue. The bond between the core rubber and the metallic surfaces as well as the complete filling of the spaces between the...

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FLEXOCORD® Steelcord Conveyor Belts Brochure-4

The FLEXOCORD® standard range is shown in the table. It is based on DIN 22131 as well as on European standard EN ISO 15236, type A1. Please contact us for enquiries about belt types according to the EN types A2, for belts wider than 2400 mm, or other types that differ from Metso's standard. Metso can supply most existing belt types following different international standards. * The belt weight is for the indicated minimum cover thickness. For each additional mm of cover thickness add 1,1 kg/m2. Conveyor Solutions

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FLEXOCORD® Steelcord Conveyor Belts Brochure-5

(equivalent to S2+d+S3) S2 top cover thickness in mm s3 bottom cover thickness in mm bk solid rubber edge Conveyor Solutions

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FLEXOCORD® Steelcord Conveyor Belts Brochure-6

The most important factor for the selection of the type of rubber quality is the nature of the conveyed material: lump size, shape, hardness, density, temperature or oil/chemical content. Operating conditions, such as ambient temperatures, radiation or safety requirements also play a role in choosing the correct cover. Metso supplies rubber grades according to a wide range of inter-national standards. Some standard cover grades are listed in the table below. All qualities are resistant against ozone, UV radiation, ageing and are antistatic according to ISO 284. Please consult us for special requirements....

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FLEXOCORD® Steelcord Conveyor Belts Brochure-7

The recommended pulley diameters depend on the steelcord diameter, the actual belt tension and the pulley deflection angle. The pulleys in a belt conveyor system are divided into groups according to their position and function, see illustration: Strength utilization in % = 105 x S x T / (B x kN) S Safety factor (6,7 to 8 for Steelcord Belts) B Belt width in mm T Local belt tension in kN kN Belt rating (nominal strength) in N/mm The table below indicates the minimum pulley diameters for steelcord belts depending on the belt rating, pulley group and strength utilization. Group C pulleys: Low-tension...

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FLEXOCORD® Steelcord Conveyor Belts Brochure-8

FLEXOCORD® Steelcord Conveyor Belts are spliced by hot-vulcanization according to DIN standard. The splice length and number of steps depend on the belt rating. The standard splice is diagonal (approx. 17°), but rectangular splices are also possible. The pictures below illustrate the splice designs. Particular attention must be paid to the splicing procedure. The method, conditions and the splicing kit have a great influence on the quality of the splice. For exact splicing instructions please contact Metso. It is strongly recommended to use splicing materials approved by the supplier. B belt...

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FLEXOCORD® Steelcord Conveyor Belts Brochure-9

Three-Step-SpliceFour-Step-Splice Belt Type Conveyor Solutions

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FLEXOCORD® Steelcord Conveyor Belts Brochure-10

A reliable way to calculate minimum transition lengths (distance between tail/discharge pulley and first/last troug-hing idler) is to use the factors given in the table. The factors depend on the troughing angle and arrangement and must be multiplied by the belt width. If the pulley is elevated with respect to the level of the center idler roll, the transition length can be decreased. Usually the elevation (hp) is one third of the total troughing height (h). Travel of take-up pulley Low elongation is one of the characteristics of FLEXOCORD® Steelcord Conveyor Belts. The travel of the take-up pulley...

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FLEXOCORD® Steelcord Conveyor Belts Brochure-11

Project_ Date Conveyor Data Conveying capacity t/h Center Distance m Lift height m Belt width mm Speed m/s Operating time h/d Ambient temperature °C Material data Material Bulk density t/m3 Temperature °C Material size mm Material characteristics (e.g. abrasive, chem. agressive, oil / grease) Drop height m Drive Position / Number Motor power kW Angle of wrap ° Pulley lagging Torque reduction device (e.g. fluid coupling, frequency converter, etc.) Starting- / stopping time s Take-up Type (weight, screw ...) Position Take-up weight t Take-up length m...

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