Noise Reduction Ceramic Wear Plates Wear Resistant Good Shock Absorption

Product Description

Rubber ceramic wear plates are used where abrasive material strikes or slides across equipment surfaces. The wear face is formed by 95% alumina ceramic elements embedded in resilient rubber. The ceramic protects against abrasion, while the rubber cushions impact, absorbs part of the vibration, and helps reduce the sharp noise produced when bulk material hits an unprotected steel surface.

These composite liners are commonly installed in chutes, hoppers, transfer points, bins and other material-handling equipment. They can be supplied as ceramic-rubber panels or with an additional steel backing plate, depending on the mounting method and operating conditions.

How the Ceramic and Rubber Work Together

Ceramic and rubber perform different jobs within the same liner.

The alumina ceramic provides the hard contact surface required for handling coal, ore, clinker, limestone, and other abrasive materials. The rubber layer supports the ceramic elements and cushions repeated impact. It also allows the liner to accommodate a limited amount of vibration and surface movement.

When a steel backing plate is added, the liner becomes a three-layer structure:

• Alumina ceramic wear surface
• Resilient rubber cushioning layer
• Steel backing plate for mechanical installation

The steel-backed version can be manufactured with bolts, studs, or other mounting components for quicker replacement during maintenance.

Noise Reduction Under Impact Conditions

When falling material strikes bare steel, the impact can produce both structural vibration and sharp noise. The rubber layer in a ceramic composite liner separates the ceramic wear surface from the equipment shell and dampens part of this vibration.

The liner can therefore help reduce impact noise, particularly at discharge points and transfer chutes. However, it should not be treated as a soundproofing product. Actual noise reduction depends on material size, drop height, impact angle, equipment thickness, liner coverage and installation quality.

No fixed decibel reduction should be assumed without testing under the customer’s operating conditions.

Ceramic Shapes and Panel Design

Ceramic elements can be made in square, hexagonal, or cylindrical shapes. The selection depends on the liner geometry and the type of impact.

Smaller ceramic elements allow the rubber panel to follow moderately curved surfaces and help distribute impact over a wider area. Larger ceramic tiles provide fewer joints and are often selected for flatter surfaces exposed mainly to sliding abrasion.

Tile thickness, rubber thickness, panel dimensions, and steel backing should be determined according to the particle size, drop height and expected wear pattern.

Typical Product Specifications

Alumina ceramic technical parameters

Rubber technical parameters

The figures above are typical product data. Final values should follow the confirmed material grade, production drawing, and agreed test method.

Typical Applications

Rubber ceramic wear plates can be considered for:

• Transfer chutes handling ore, coal or clinker
• Hopper and bunker impact areas
• Conveyor discharge points
• Cement and aggregate handling equipment
• Power plant coal and ash systems
• Mining and mineral processing equipment
• Steel plant material-transfer systems
• Other areas combining impact and sliding abrasion

The liner selection should consider both wear direction and impact energy. A ceramic-rubber liner suitable for fine powder flow may not be the correct choice for large material falling from a significant height.

Installation Details

Ceramic-rubber panels without steel backing are usually bonded to a properly prepared metal surface. The steel should be clean, dry and free from oil, rust, loose scale and old adhesive.

Steel-backed liners may be bolted or welded to the equipment. The mounting points should be arranged so that the liner remains secure without leaving exposed steel in the main wear path.

During installation, particular attention should be paid to:

• Joints between adjacent panels
• Material flow direction
• Exposed edges and mounting points
• Gaps around corners and transitions
• Surface preparation and adhesive curing
• Accessibility for future replacement

FAQ

Can rubber ceramic wear plates eliminate equipment noise?

No. The rubber layer can absorb part of the impact vibration and help reduce noise, but the result depends on the complete equipment structure and operating conditions.

What is the difference between a two-in-one and three-in-one liner?

A two-in-one liner consists of ceramic and rubber. A three-in-one liner adds a steel backing plate, making mechanical installation by bolts or welding possible.

Can the panel dimensions and ceramic layout be customized?

Yes. Panel length, width, total thickness, ceramic shape, rubber thickness, steel backing, and mounting arrangement can be produced according to drawings.

Can these liners be used above 100°C?

The standard rubber compound is normally intended for temperatures up to 100°C. Higher temperatures require a separate review of the rubber, adhesive and installation system.

ELACERA manufactures rubber ceramic wear plates for abrasive and impact-prone material-handling equipment. Please provide the equipment drawing, material type, particle size, drop height, operating temperature and preferred installation method for liner selection.