ПОЛІУРЕТАН

 

ВИРОБИ БУДЬ ЯКОЙ СКЛАДНОСТІ

LLC Puralexa is a company specializing in the production of polyurethane  parts of any complexity.

We supply custom-made polyurethane products in a wide range of hardness levels, designed for operation under abrasive wear, high and variable loads, temperature fluctuations, environmental exposure, and aggressive conditions.

Our product range is extensive – from traditional polyurethane items (sheets, rods, seals, bushings, rollers) to custom-designed, innovative, and engineering solutions.

Advantages of Polyurethane Products for Industry

✔ Wear resistance – Urethane is significantly more resistant to wear than rubber, plastic, and metal.
✔ Chemical resistance – Polyurethane parts demonstrate excellent resistance to most solvents, chemicals, oils, and greases.
✔Dimensional stability – Even at high hardness levels, polyurethane products can stretch significantly and return to their original shape.
✔ Electrical properties – The chemical composition of urethane prepolymers provides a combination of electrical properties such as dielectric strength, permittivity, specific resistance, and power factor.
✔ Environmental resistance – Polyurethane is resistant to ozone and oxygen, outperforming rubber in terms of UV and weather resistance.
✔Friction coefficients – Urethane can be manufactured with various friction coefficients.
✔ Hydrolytic stability – Polyurethane parts absorb minimal moisture (only 0.3% to 1% of their weight), making them suitable for high-humidity environments.
✔ Impact resistance – Even the hardest polyurethane parts are more impact-resistant than plastics and composites.

Polyurethane Chutes

Grain chutes serve to protect products from mechanical damage during transportation in grain pipelines. Polyurethane extends the service life of grain ducts.

Advantages of Polyurethane Screens for Vibrating Sieves

✔ Moisture, chemical, and abrasion resistance, ensuring an extended service life.
✔ High structural strength due to reinforcement elements.
✔ Corrosion resistance – polyurethane does not rust.
✔ Prevention of clogging – no accumulation of fine ore particles in the screen cells.

Polyurethane Bushings

We manufacture polyurethane inserts and liners of any diameter and purpose. These bushings can be used as standalone components or as blanks for seals, dampers, and coatings for shafts and rollers.

Polyurethane Lining Services

Grain Chute Lining

The chute is the most vulnerable part of elevators and bulk material handling systems. Due to the high-speed impact of grain, the bottom of these pipelines wears out quickly, causing financial losses.

Solution: lining grain chutes with polyurethane to extend equipment lifespan and facilitate grain processing.

Lining methods:

• Inserting polyurethane liners into pipes and fittings.
• Using polyurethane sheets for internal surface protection.
• A combination of sheets and liquid polyurethane for enhanced durability.

Why Do Shafts Need Polyurethane Lining?

Polyurethane shaft lining forms a durable protective layer on the surface. The thickness of this layer can vary, depending on the application:

• Rolling tracks require a 10 mm layer.
• Pipe-rolling industries need a thicker layer due to higher friction forces.

Benefits: Shaft lining helps restore worn-out parts and extends their service life.

Polyurethane Coating for Wheels

Polyurethane-coated wheels are widely used in various industries. Coating wheels with polyurethane enhances their properties:

• Ensures smooth and silent operation.
• Provides high wear resistance.
• Increases load capacity.
• Resists solvents, gasoline, machine oils, and other aggressive substances.

Applications of Polyurethane Wheels:
✔ Municipal and cleaning equipment
✔ Warehouse machinery
✔ Carts and trolleys for material handling

How to Order Polyurethane Products?

To place an order, simply send or submit a drawing, sketch, or technical design of the required polyurethane part. Please specify:
✔ Application and purpose
✔ Hardness level
✔ Tolerances
✔ Surface finish requirements
✔ Color preferences

Alternatively, you can provide a sample of the product to our manager for analysis and production.