---
title: "How to Find and Order a Polyurethane Part: A Step-by-Step Guide for Engineers"
description: "Learn how to correctly find and order a polyurethane part for industry. Comparison with rubber and caprolon, drawing requirements, hardness selection."
lang: "en"
date: "2026-07-26"
canonical_url: "https://timol.com.ua/en/statti/kak-najti-i-zakazat-detal"
---
# How to Find and Order a Polyurethane Part: A Step-by-Step Guide for Engineers

Has your production line stopped for the third time this season due to a worn scraper or bushing? Time and money losses due to a simple rubber part are a common situation for many manufacturers. Switching to polyurethane allows you to forget about frequent replacements: its lifespan is 10 times longer than rubber. In this article, I will guide you step-by-step on how an engineer can quickly find the right product, select optimal characteristics, and correctly place an order at the TIMOL factory.

## How to Determine if Polyurethane is the Optimal Choice for Your Part
Polyurethane is used where maximum abrasion resistance, dynamic or impact load handling, and resistance to aggressive environments are required. It operates in a temperature range from -60 to +100 °C, maintaining elasticity at low temperatures and not softening in summer. Thanks to its wear resistance, which is 10 times greater than rubber, polyurethane bushings, scrapers, screens, elevator buckets, and rollers ensure long-lasting operation without emergency stops.

In the mining, metallurgy, machinery, and railway industries, polyurethane is used for parts that operate in dust, abrasives, with cyclones, on gravity equipment, and where noise and vibration isolation are important. For example, in concrete mixers, polyurethane scrapers last much longer than rubber or metal, do not corrode, and do not damage the working surface.

The free casting technology allows for the production of parts of any complexity, from simple rings to complex linings or hydrocyclones. This enables the customer to replace a weak point in a unit with an equivalent that has maximum resource under specific operating conditions.

## What Data is Needed to Order a Polyurethane Part
To quickly and accurately manufacture a polyurethane part, the factory requires a complete set of technical information. The main requirement is a drawing with all dimensions or a physical sample of the part to be replaced. The more precise the geometry and requirements, the lower the risk of defects during installation and operation.

Besides dimensions (diameter, length, thickness, mounting points), it is important to specify the nature of the load: whether it is a rotating, translational, or complex moving part, the forces involved, contact with abrasives, lubricants, acids, or if operation at elevated temperatures is required. For scrapers, linings, screen elements, this involves impact and abrasive loads. For seals, gaskets, and oil seals, elasticity and size stability are crucial.

Indicate the desired material hardness (range 50 Shore A to 70 Shore D, for wear-resistant parts, 80-95 Shore A). If the hardness is unknown, the factory technologist will help select it for your task. In many cases, providing a sample or photo of the part with a ruler is enough for specialists to prepare drawings and agree on nuances.

## Comparison of Polyurethane with Rubber and Caprolon: Specific Data
Polyurethane demonstrates the best abrasion resistance among elastomers and has a wide operating temperature range. For abrasive nodes, polyurethane ensures minimal material loss and stable operation for a season or more.

| Property | TIMOL Polyurethane | SBR Rubber | Caprolon (PA6/PA66) |
|-----------------------------|--------------------------|-------------------|-------------------------|
| Abrasion (DIN 53516), mm3 | 20-45 | 100-200 | 30-90 |
| Working t, °C | -60...+100 | -40...80 | -40...100 |
| Hardness, Shore | 50A-70D | 40A-80A | 75D-85D |
| Tensile strength, MPa | 25-60 | 8-20 | 60-85 |
| Density, g/cm3 | 1.05-1.25 | 0.94-1.1 | 1.13-1.15 |
| Rebound elasticity, % | 35-65 | 30-55 | 5-15 |

Polyurethane abrasion according to DIN 53516 is only 20-45 mm3, whereas SBR rubber is 100-200 mm3. This provides up to 10 times longer service life under the same conditions. Caprolon shows better wear resistance than rubber but loses elasticity and becomes brittle under impact, while polyurethane retains resilience and functionality even after repeated load cycles.

## How to Choose Polyurethane Hardness for a Specific Task
Polyurethane hardness is a key parameter for the durability and reliability of a part. For nodes working with abrasives (linings, screens, scrapers), it is optimal to choose a hardness of 80-95 Shore A. This range allows the material to remain resilient, not chip, and absorb impacts from abrasive particles. For seals, gaskets, oil seals, 70-90 Shore A is chosen, ensuring tight fitting and stable shape under compression.

In structural nodes where geometric stability under static pressure is important, hardness up to 70 Shore D is used. However, for parts working under friction, abrasives, excessive rigidity is ineffective: a rigid material chips faster and does not absorb impact impulses.

> **Engineer’s Tip:** When selecting linings or scrapers, do not chase maximum hardness. Resilient polyurethane 80-95 Shore A optimally absorbs impacts, does not chip, and does not tear even under heavy abrasive load.

The factory technologist can help select the hardness for working conditions. Simply describe the unit, load nature, temperature, and environment, and you will be recommended the optimal option. More about technical properties and hardness range can be read in the [reference section](/informatsiya).

## How Polyurethane Parts are Manufactured by Free Casting
The free casting technology allows for the creation of products with complex geometry without expensive molds. A prepared mold, according to the drawing or sample, is filled with a polyurethane mixture. After polymerization, the product has the exact geometry and properties specified at the recipe selection stage.

This method is suitable for both unique single orders and serial production (e.g., elevator buckets, rollers, scrapers, and screen elements). It is especially advantageous for parts that frequently change shape for new units or equipment upgrades. Preparation costs are minimal compared to injection molding or metal machining.

Equipment for free casting polyurethane allows for the introduction of reinforcing inserts (metal cores, bushings), enabling the creation of combined parts, such as rollers or bands with a rigid supporting element and elastic polyurethane coating. Casting quality is controlled at every stage, and finished products undergo size and hardness checks.

## How Polyurethane Parts are Mounted and Operated
The installation of polyurethane parts generally does not differ from the installation of rubber or metal counterparts. Bushings, bands, buckets, scrapers are mounted on standard mounting points or fastened with bolts, clamps, flanges. For linings, adhesive or mechanical fixation is often used, and for seals, an interference fit is applied.

During operation, polyurethane exhibits size stability, does not age under UV exposure, is not subject to hydrolysis, and does not crack in low-temperature conditions. Thanks to high resilience, the part not only absorbs impact but also does not transmit it to the structure, reducing noise and vibration levels on the line. Maintenance of a polyurethane unit is reduced to planned condition control, and in most cases, replacement is needed much less frequently than with rubber or even caprolon counterparts.

In case of damage or wear, you can order restoration or a new part by providing a sample and describing the operating conditions. The factory can also advise on the optimal reinforcement option or design change for even greater resource.

## How to Place an Order at TIMOL Factory: Step-by-Step Instructions
Placing an order for a polyurethane part involves several clear steps. First, send a drawing or sample of the product, add a description of the working conditions (temperature, load nature, environment), and also specify the desired hardness and color (if necessary). If needed, the factory technologist will help compile the technical task and select optimal parameters.

After agreeing on all details, the factory prepares a timeline calculation and agrees on the order with the client. For catalog products, buckets, wheels, rollers, screens, scrapers, it is enough to specify the designation or size type. For unique parts, a flexible approach is applied: manufacturing according to the customer's drawing, including single items.

You can place an order through the website, email, or by phone, as well as in person at the enterprise. After agreeing on the order, you will receive a product that has passed quality control and is ready for installation. The full range of products can be found in the [polyurethane products catalog](/katalog).

## Consultations, Support, and Service for the Customer
The TIMOL factory provides not only the manufacturing of parts but also full engineering support, from material and hardness selection to recommendations on installation, operation, and repair. The factory technologists help optimize the unit design for polyurethane, considering the nuances of a specific industry: whether it is mining, food, or pulp and paper.

The customer receives qualified consultation on material compatibility with aggressive substances (acids, lubricants, abrasives), reinforcement possibilities, choice of fastening type, or lining thickness. For those working with non-standard equipment or upgrading a line, the factory offers the production of unique parts according to individual drawings or sketches.

You can leave a request for calculation, get a consultation, or order an engineering visit through the [factory contacts](/contacts). This significantly saves time and reduces the risk of defects when launching a new part into production.

## Conclusion: Why Order Polyurethane Parts at TIMOL
A correctly selected polyurethane part is a real opportunity to forget about frequent emergency stops, reduce maintenance costs, and extend the lifespan of units 10 times compared to rubber. Thanks to the flexible free casting technology, the TIMOL factory manufactures products with precise dimensions according to any drawing or sample, and engineering support helps avoid common mistakes when introducing new material.

Contact the [TIMOL factory](/contacts) for the selection of optimal polyurethane products, material selection consultation, and order placement for your equipment.