Conveyor Solutions Trellex® Classic Steelcord Conveyor Belts EN

Trellex® Conveyor Belts Based on more than 110 years of experience in development, manufacturing and application know-how, Trellex® Conveyor Belts meet specific end-user requirements for cost efficiency and reliability. With subsidiaries in more than 40 countries, and more than 200 service units in all parts of the world, Metso Mining and Construction Technology participates in the design, engineering, installation and service, thereby ensuring a maximum return on the customer’s investment. Within the Trellex® product range, steelcord belts are the ideal choice for long, high-tension or heavy-duty...

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 metallic breaker plies to improve impact resistance. Core rubber Excellent adhesion to galvanized steelcord and cover, improved steelcord impregnation, high structural strength and shear modulus, resistance to heating and fatigue. Carcass Hot-galvanized steelcords, laid in alternate directions. Steelcord and Core Rubber The bond between core rubber and metallic surfaces as well as the complete filling...

Product Range The Trellex® standard product range is shown in the table. It is based on DIN 22131 as well as on European standard EN ISO 15236, type A1. For EN types C1 and C2 please refer to the Trellex® brochure for belt types ”STW”, ”STR” and ”STX”. Specification Operating tension Metso can supply most existing belt types following different international standards. 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. Cord diameter standard Cord pitch Minimum cover thickness Belt weight,...

S3 bottom cover thickness in mm solid rubber edge

Cover Grades 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 manufactures rubber grades according to a wide range of international 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...

Pulley Diameters 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 Group C pulleys: Low-tension pulleys with a deflection angle of 30° or less The table below indicates the minimum pulley diameters for steelcord belts...

Splicing Trellex® Classic Steelcord Conveyor Belts are spliced by hot-vulcanization according to DIN standard. The splice length and number of steps depends 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 recommend to use splicing materials approved by the supplier....

Four-Step-Splice Steps x step length lST in mm Belt Type Steps x step length lST in mm Belt Type Conveyor Solutions

Transition Lengths A reliable way to calculate minimum transition lengths (distance between tail/discharge pulley and first/last troughing 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). Minimum Transition Distance LTR Troughing angle Travel of Take-up Pulley measuring errors or to correct the belt sag....

Questionnaire for Conveyor Belt Enquiries Customer Project Conveyor Name 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 Troughing / Idler stations Position / Number Troughing angle ° Motor power kW Idler weight Carrying kg Angle of wrap ° Return kg Pulley lagging Pitch Carrying m Torque reduction device Return m (e.g. fluid coupling, Outer...

Metso Minerals (Deutschland) GmbH Conveyor Solutions Clausthalstraße 2 DE-47 441 Moers Germany Phone: +49 2841 16955-0 Fax: 49 2841 16955-127 + Metso Minerals (Wear Protection) AB Conveyor Solutions P.O. Box 74 SE-231 21 Trelleborg Sweden Phone: +46 410 525 00 Fax: +46 410 526 02 www.metsominerals.com For contact with your local Metso representative, visit www.metsominerals.com/trellex for information about your nearest sales office. Subject to alteration without prior notice.