---
title: "Polyurethane Elevator Buckets for the Food Industry: Advantages and Comparison"
description: "Polyurethane elevator buckets for the food industry: 10 times higher wear resistance, minimal downtime, custom manufacturing. Learn how to switch to polyurethane."
lang: "en"
date: "2026-08-31"
canonical_url: "https://timol.com.ua/en/statti/shneki-pogruzochnye-dlya-pishchevaya-promyshlennost"
---
# Polyurethane Elevator Buckets for the Food Industry: Advantages and Comparison

A broken or worn elevator bucket stops the conveyor, and every hour of downtime for an elevator or grain processing line results in losses and risks of product quality degradation. The quick replacement of a steel or rubber bucket is a complex and costly process, and traditional materials cannot withstand intensive cycles. By installing a polyurethane bucket, you eliminate the need for regular repairs. In this article, I'll explain why polyurethane is the optimal engineering solution for the challenges of the food industry, which components should be replaced first, and the economic benefits it provides in practice.

## Why Polyurethane is the Optimal Choice for Elevator Buckets in the Food Industry
Polyurethane elevator buckets in the food industry offer 10 times greater wear resistance than rubber and do not chemically react with the product. This is critical for the safety of food raw materials, as polyurethane does not leave foreign inclusions or release substances that could affect the product.

In the working units of elevators, polyurethane absorbs the impact of grain or feed, preventing the formation of microcracks or chipping, which are typical for plastic or steel. It operates without losing properties in a temperature range from -60 to +100 °C, making it suitable for transporting both hot and cooled raw materials. The absence of corrosion or spark formation provides additional safety assurance for food production, especially important in areas with high humidity and dust.

The polyurethane bucket does not accumulate raw material residues, is easy to clean, and its surface resists sticking even of fine materials like bran, flour, or crumbs. This minimizes the risk of mold development or secondary contamination, which is a requirement of modern food production. Manufacturing buckets from polyurethane using the free casting method allows for the realization of the necessary wall thickness and geometry for any type of elevator.

## Which Components and Parts Should Be Converted to Polyurethane
In the food industry, polyurethane elevator buckets are particularly sensible, as these parts are most susceptible to abrasive wear when transporting grain, bran, or seeds. Traditionally used steel or rubber buckets wear and break under abrasive action and also create increased noise, which can affect operators and the environment.

It is also advisable to replace plastic buckets where impact strength and resilience are needed. Polyurethane works perfectly in units where the bucket is bolted to the belt, as it does not crack during installation and does not break when a foreign object accidentally enters. Areas where replacement is particularly appropriate:

- The working area of the elevator tower, where intensive loading/unloading occurs.
- Areas of contact with the product prone to wear (seating areas, side walls, bucket bottom).
- Elevators for transporting abrasive or wet materials, where maximum chemical inertness is required.

Additionally, polyurethane is used for gaskets, inserts, lining parts of the elevator, and belts that come into contact with bulk products. It is also suitable for upgrading units where minimal dust, noise, and the need for easy disassembly and sanitary processing are critical.

> **Engineer’s Tip:** For transporting grain, feed, and other abrasive bulk products in the food industry, recommend polyurethane buckets with a hardness of 80-95 Shore A. This range provides the optimal balance between impact resistance, resilience, and wear resistance, ensuring the bucket does not crack upon accidental impact or clogging and does not wear out even during prolonged operation.

## Comparison of Polyurethane with Traditional Materials for Buckets
Polyurethane (TIMOL) surpasses rubber, steel, and caprolon in key performance characteristics. Here is a comparison table with specific numbers for the main bucket materials in the food industry:

| Material | Abrasion (DIN 53516), mm3 | Working Temperature, °C | Density, g/cm3 | Tensile Strength, MPa | Hardness |
|------------------------|---------------------------|------------------------|----------------|------------------------|------------------|
| Polyurethane (TIMOL) | 20-45 | -60...+100 | 1.05-1.25 | 25-60 | 50A-70D |
| Rubber SBR | 100-200 | -40...80 | 0.94-1.1 | 8-20 | 40A-80A |
| Rubber EPDM | 80-180 | -50...120 | 0.86-1.1 | 7-20 | 30A-90A |
| Natural Rubber (NR) | 60-130 | -50...70 | 0.92-1 | 20-30 | 30A-80A |
| Caprolon (PA6/PA66) | 30-90 | -40...100 | 1.13-1.15 | 60-85 | 75D-85D |
| Structural Steel | - | -40...500 | 7.7-7.9 | 370-700 | 120-250 HB |

The abrasion of polyurethane (20-45 mm3 according to DIN 53516) is several times lower than that of SBR or EPDM rubbers (100-200 mm3, 80-180 mm3 respectively), meaning polyurethane wears significantly slower. For comparison, caprolon shows abrasion of 30-90 mm3 but lacks the impact strength and resilience of polyurethane. Steel does not wear, but its mass is 6-7 times greater than polyurethane, adding extra load to the belt and elevator drive, increasing noise, and posing a risk of spark formation.

## Operational Experience: Real Effects of Switching to Polyurethane
In practice, switching to polyurethane elevator buckets provides food enterprises with the following benefits:
- Increased maintenance intervals: the polyurethane bucket wears out 10 times slower than rubber, making scheduled replacements rare.
- Reduced risk of emergency stops: polyurethane does not crack when foreign objects fall, and the absence of corrosion ensures stability even in humid areas.
- Reduced contamination risk: polyurethane does not release foreign substances, does not leave fragments in the product, is easy to clean, and does not accumulate mold or raw material residues.
- Simplified maintenance: thanks to its lighter weight, the installation and removal of the bucket are simplified, requiring no special tools, and replacement occurs according to the standard bolt fastening scheme.
- Reduced load on the drive and belt: the polyurethane bucket is lighter than metal, does not burden the unit, reduces energy consumption, and extends the drive group's resource.
- Reduced noise in the production workshop: the elastic material absorbs shocks and vibrations, creating comfortable conditions for personnel.

## Features of Manufacturing Polyurethane Buckets: From Drawing to Installation
At the TIMOL factory, elevator buckets are manufactured using the free casting method from cast polyurethane. This allows for the realization of both simple and complex geometries, various wall thicknesses, seating holes, and stiffening ribs. The use of free casting technology allows for quick production adjustments according to the customer's drawings, which is relevant for upgrading old units or non-standard elevators.

Manufacturing according to drawings allows for consideration of each enterprise's specifics: type of elevator, bucket size and shape, bolt placement scheme, or belt seating specifics. Polyurethane buckets can be made to standard dimensions or individual sketches. When ordering, the customer can specify the desired hardness in the range of 80-95 Shore A for abrasive products or another, depending on the task.

Installation of polyurethane buckets is carried out with standard fasteners: bolts, washers, and nuts. No additional devices are needed, and replacement occurs in the typical elevator belt maintenance order. For hygienic processing, washing with hot water or steam is allowed without losing the bucket's properties. More details about the material and manufacturing technology can be found in the [reference information](/informatsiya) section.

## How to Choose a Polyurethane Bucket and Order for Your Task
Selecting the optimal polyurethane bucket depends on the type of product being transported, load intensity, elevator size, and installation conditions. It is important to determine the hardness range based on the abrasiveness of the raw material: for grain, bran, and pellets, 80-95 Shore A is best, while softer grades may be used for less aggressive products. The bucket shape affects unloading speed and prevents residue sticking.

You can order a polyurethane bucket through the [product catalog](/katalog) or contact the [food industry department](/galuzi/pishchevaya_promyshlennost), where engineers will provide recommendations on the optimal shape, thickness, and type of installation for a specific unit. For calculation and manufacturing according to drawings, just send your sketch or unit parameters. All products undergo quality control and can be manufactured in both standard execution and with additional options.

## Conclusion: Polyurethane Buckets, a Long-term Solution for the Food Industry
Polyurethane elevator buckets are a modern approach to transporting food products, ensuring maximum service life, minimal downtime, and safety for raw materials. Thanks to their unique wear resistance, adaptability to any unit, and easy maintenance, polyurethane reduces operating costs, increases reliability, and guarantees the stability of the production process. Contact the TIMOL factory for consultation, calculation, and manufacturing of buckets according to your parameters, and place an order through [contacts](/contacts) or the catalog.