---
title: "Polyurethane Elevator Buckets in Metallurgy: Advantages and Steel Replacement"
description: "Compare polyurethane and steel elevator buckets for metallurgy. Discover why TIMOL polyurethane offers 10 times higher wear resistance. Request a quote."
lang: "en"
date: "2026-08-25"
canonical_url: "https://timol.com.ua/en/statti/shneki-pogruzochnye-dlya-metallurgicheskaya-promyshlennost"
---
# Polyurethane Elevator Buckets in Metallurgy: Advantages and Steel Replacement

When the replacement of elevator buckets in a metallurgical plant's conveyor line becomes routine due to wear or chipping of metal and rubber, downtime and losses become inevitable. Polyurethane buckets last significantly longer, reducing the frequency of repairs and ensuring stable material flow even in abrasive dust and impact conditions. This article explores how polyurethane changes the approach to elevator operation in metallurgy, which components are worth upgrading, and the economic benefits for the enterprise.

## Why Polyurethane Elevator Buckets Are More Effective Than Metal and Rubber in Metallurgy
Polyurethane elevator buckets demonstrate 10 times higher wear resistance compared to rubber and surpass metal in several critical characteristics for metallurgy. This is achieved through the combination of high resilience, elasticity, and stability of polyurethane in challenging production conditions.

In the metallurgical industry, elevator buckets operate in areas exposed to powerful abrasive flows of charge, agglomerate, limestone, slags, as well as frequent impacts and vibrations. Steel buckets withstand static loads well but quickly chip at the edges due to local impacts, do not dampen vibration, and create increased noise in the workshop. Rubber buckets (SBR, NBR) often cannot withstand abrasives, their abrasion according to DIN 53516 is 100-200 mm3, while polyurethane maintains 20-45 mm3 and retains its geometry.

The elastic structure of polyurethane allows the bucket to 'bounce off' abrasive particles rather than letting them cut deep grooves. This is especially important in areas where material flies at high speed, and the bucket simultaneously receives impact and abrasion. Additionally, polyurethane does not corrode or spark, enhancing safety when transporting metal charge.

> **Engineer’s Tip:** For aggressive abrasive conditions in metallurgy, order buckets with polyurethane hardness in the upper range of Shore A (80-95 A): this ensures an optimal balance between abrasion resistance and resilience. Too hard a material (Shore D) does not dampen impacts and may chip.

## Key Replacement Nodes and Installation Features of Polyurethane Buckets
Replacing metal and rubber buckets with polyurethane ones is advisable in all elevator nodes that transport abrasive, bulk, or moist materials. Polyurethane buckets are especially effective in areas of intense loading (lower drum), discharge (upper drum), and in zones where material passes through narrow bends or turns.

Installing polyurethane buckets does not require changes to the equipment design. Products are manufactured by the free casting method according to drawings or standard sizes, with holes for attachment to the belt or disk. It is important to check the cleanliness of the seating surface and the evenness of bolt tightening before installation, as this prevents misalignment and extends service life. Standard bolts and washers are selected for replacement, and for non-standard solutions, drawings are coordinated with TIMOL plant engineers. During operation, polyurethane buckets do not require special maintenance, and their replacement is as easy as for metal or rubber counterparts.

In nodes with increased wear, such as in places where the material stream impacts, polyurethane can be used as linings or inserts, which additionally protect the elevator body and extend the service life of the entire node.

## Comparison of Polyurethane with Other Materials: Characteristics Table
The table below presents the key physical and mechanical parameters of TIMOL polyurethane and typical competing materials for elevator buckets. Data is taken from engineering handbooks and the plant catalog.

| Characteristic | Polyurethane (PU, TIMOL) | SBR Rubber | Carbon Steel |
|-------------------------------|------------------------|-----------------------|---------------------|
| Abrasion (DIN 53516), mm3 | 20-45 | 100-200 |, |
| Wear resistance to rubber | 10 times higher | 1 (standard) |, |
| Working temperature, °C | -60...+100 | -40...80 | -40...500 |
| Hardness | 50 Shore A - 70 Shore D| 40A - 80A | 120-250 HB |
| Tensile strength, MPa | 25-60 | 8-20 | 370-700 |
| Density, g/cm3 | 1.05-1.25 | 0.94-1.1 | 7.7-7.9 |
| Rebound elasticity, % | 35-65 | 30-55 |, |
| Noise level | low | medium | high |

In real conditions, the abrasion of polyurethane is 20-45 mm3, while SBR rubber buckets lose 100-200 mm3 under similar loads. This means that polyurethane buckets last 3-5 times longer, and considering wear resistance, 10 times longer compared to rubber. The weight of polyurethane is 6-7 times less than steel, significantly reducing the load on the drive and elevator structure, and simplifying maintenance.

## Operational Advantages and Impact on Enterprise Efficiency
The use of polyurethane buckets in the metallurgical industry reduces the frequency of repairs and downtime, optimizes maintenance costs, and increases the reliability of raw material transportation. Due to the high resilience of polyurethane, abrasive impacts are absorbed, reducing the risk of chipping and premature failure of both the buckets themselves and adjacent parts.

The lightness of polyurethane buckets reduces dynamic loads on the belt, bearings, gearboxes, and other elevator elements. This is especially noticeable on long vertical elevators, where the mass of moving parts significantly affects energy consumption and wear of nodes. Polyurethane does not corrode, does not spark, and in emergency situations does not damage the belt or body, enhancing safety and reducing the risk of downtime due to mechanical damage.

Additionally, polyurethane buckets create less noise, positively affecting working conditions in the workshop. In metallurgy, where noise and vibration levels often exceed permissible norms, this becomes a significant advantage for occupational safety and employee health.

## Selection of Hardness, Manufacturing Technology, and Task-Specific Customization
For abrasive materials in metallurgy, it is optimal to use polyurethane in the range of 80-95 Shore A, ensuring maximum abrasion resistance while maintaining the necessary resilience to absorb impacts. Products are manufactured by the free casting method: this allows creating elevator buckets both according to standard drawings and individual customer sketches.

If necessary, polyurethane buckets can be equipped with reinforcements, inserts, or additional elements to increase rigidity or adapt to the specific node. TIMOL plant accepts sketches, drawings, and technical specifications, providing a full cycle from formulation selection to manufacturing and quality control.

> Before ordering, be sure to specify the nature of the abrasive, temperature, and flow speed. Plant engineers will help select the optimal hardness and bucket design to achieve maximum service life at your facility.

## How to Order Custom Polyurethane Elevator Buckets
Manufacturing elevator buckets at the TIMOL plant is possible both according to standard dimensions and individual drawings. Simply send a technical specification or sketch through the form on the [catalog page](/katalog) or contact directly through [contacts](/contacts). Engineers will help select the hardness and type of polyurethane, considering the nature of the abrasive, transportation speed, and structural features of the node. The entire process, from drawing approval to manufacturing and quality control, takes place on a single TIMOL plant site.

Learn more about polyurethane products for metallurgy in the [“Metallurgical Industry”](/galuzi/metallurgicheskaya_promyshlennost) section and [information page](/informatsiya).

## Practical Conclusion
Replacing steel or rubber elevator buckets with polyurethane ones in the metallurgical industry provides the enterprise with extended service life, reduced emergency stops, and optimized maintenance costs. Polyurethane buckets are not only more resistant to abrasives but also lighter, safer, and easier to install. For calculation and ordering of custom buckets, contact TIMOL engineers through the [catalog](/katalog) or [contacts](/contacts) of the plant.