Steel Carcass Rubber Conveyor and Rubber Elevator Belts: Engineering Excellence

High-Performance Solutions for Heavy-Duty Material Handling

In the bulk material handling industry, steel carcass rubber conveyor and rubber elevator belts represent the ultimate technology for tackling extremely challenging industrial applications.

When to choose Steel Carcass Conveyors?

Often, it is necessary to rely on a stronger carcass construction to resist heavy material impact on the top cover. This is typically required in mines, quarries, or when conveying clinker in cement plants. In these scenarios, rubber conveyor belts must carry large, heavy rocks, making standard EP carcass (polyester/nylon) belts unsuitable.

To withstand such difficult working conditions, the SIG technical department developed SIDERFLEX: the flat steel cord rubber conveyor belt specifically designed for high-impact situations.

Steel carcass conveyor belt

Overcoming Belt Elongation Issues

Beyond structural strength, steel carcass items are essential for tackling another recurring issue: permanent elongation.

When facing long conveying distances—usually over 500 meters—standard EP conveyor belts can stretch significantly, leading to premature replacement. SIDERFLEX solves this problem by offering a special construction that ensures far less permanent elongation while maintaining excellent flexibility.

Specialized Steel Cord Elevator Belts

For vertical lifting applications, SIG has developed two specialized steel cord rubber elevator belts:

  • ELEMET: Standard steel cord rubber elevator belts.
  • ELEMET LE: Special carcass construction rubber elevator belts characterized by low elongation.
ELEMET Steel Cord Elevator Belt

 Why ELEMET LE? High-Performance Elevator Belts for Modern Cement Plants

Steel cord rubber elevator belts, such as the ELEMET range, are critical components in the cement industry, specifically designed for the vertical transport of materials within heating towers.

 

The Challenge: increasing heights in Cement Production

Over the years, the structural requirements of cement plants have evolved. Heating towers are reaching unprecedented heights, often exceeding 60 or 70 meters.

As transport distances increase, standard belts face a significant risk: excessive elongation. This technical issue can lead to severe operational downtime and negatively impact the overall output of the cement plant.

 

The Solution: ELEMET LE (Low Elongation)

To address these challenges, the SIG technical department developed a specialized, reinforced carcass construction known as "LE" (Low Elongation).

Key Features of ELEMET LE:

  • Thicker Steel Cables: Engineered with high-strength cables for superior durability.
  • Closed Construction: A high-tech design that guarantees minimized permanent elongation even under extreme stress.
  • Bucket Support: Specifically built to withstand the mechanical stress of fixing large and heavy buckets directly onto the belt. By integrating ELEMET LE technology, cement plants can ensure continuous production, reduced maintenance, and long-term reliability for their vertical conveying systems.

By integrating ELEMET LE technology, cement plants can ensure continuous production, reduced maintenance, and long-term reliability for their vertical conveying systems.

Case Study: SIG’s High-Performance Steel Cord Elevator Belt Solution for the Cement Industry

In the heavy-duty world of bulk material handling industry, the difference between operational excellence and costly downtime often lies in the quality of the components and the expertise behind their installation. At SIG, we don't just provide products; we provide comprehensive technical solutions.

Today, we are sharing a successful case study from 2023 involving one of the world’s largest cement producers. This project highlights our ability to combine high-performance rubber conveyor belt technology with specialized on-site engineering support.

The Challenge: Improving efficiency in a cement Heating Tower

A major European cement plant faced a critical issue with one of its heating towers. Given the extreme conditions of cement production — high temperatures, heavy loads, and vertical lifts — the plant required a replacement for its existing elevator belt that could guarantee durability and minimal maintenance.

The customer reached out to SIG for a complete package:

  1. A new, high-performance steel cord conveyor belt specifically designed for elevator applications.
  2. A specialized clamping device for secure installation.
  3. On-site technical supervision to oversee the delicate splicing and start-up phases.

 

The Solution: ELEMET LE 1600 Steel Cord Elevator Belt

To meet the rigorous demands of the heating tower, SIG supplied the ELEMET LE 1600 4+4 BX 680mm. This is a special low-elongation steel cord conveyor belt engineered for vertical transport (elevator) systems.

Technical Specifications:

  • Model: ELEMET LE (Low Elongation)
  • Breaking Load: 1600 N/mm
  • Configuration: 4mm Top Cover + 4mm Bottom Cover
  • Width: 680 mm
  • Length: 90 meters
  • Heat Resistance: The belt was manufactured using a premium heat-resistant rubber compound, withstanding continuous working temperatures of up to 180°C.

While SIG is renowned for a wide range of solutions—including pipe conveyor systems for enclosed transport and sidewall conveyor belt designs for steep inclines—the elevator belt remains a cornerstone for vertical material handling in the cement and mining sectors.

 

Beyond the Product: On-Field Technical Supervision

A high-quality rubber conveyor belt is only as good as its installation. To ensure the longevity of the ELEMET LE belt, SIG designed and manufactured a tailor-made clamping device specifically for this project.

Furthermore, one of SIG technicians went on-site to offer proper assistance at installation stage. This on-site service ensured that the clamping device could be correctly positioned and that the elevator belt splicing and start-up procedures met our strict quality standards. 

This "turnkey" approach minimized the risk of potential mistakes and ensured the plant returned to full capacity with a more reliable system than before.

 

Why should you choose SIG?

Whether you require a standard rubber conveyor belt, a special cleats and sidewalls conveyor belt, or a steel cord conveyor belt, SIG delivers Italian excellence to every corner of the globe.

SIG is the only Italian leading manufacturer of rubber conveyor and elevator belts. By choosing SIG, you are partnering with a manufacturer that controls the entire production chain, ensuring that every meter of rubber meets the highest European standards for quality and safety.

 

Optimize Your Plant Performance Today

Don't settle for off-the-shelf solutions when you can have custom-engineered Italian technology. Experience the best the industry has to offer with a premium brand partner.

Get in touch with our technical team by contacting us at sig@sig.it or by Telephone.

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