Ceramic Lined Rubber Hose

Product Details

Product Introduction

The wear-resistant ceramic rubber hose is reinforced with embedded wear-resistant ceramics as its core “armor-like” wear layer and natural rubber as the main structure. Boasting outstanding wear resistance and structural stability, it achieves an ultra-long service life far exceeding that of ordinary hoses, making it the ideal choice for powder/slurry conveying scenarios in industries such as mining, metallurgy, and building materials.

Technical Specifications

Ceramic Technical Specifications

Content of AL2O3(%): ≥ 95%

Density(g/cm3): 3.65

Rockwell hardness(HRA): 85

Rupturing toughness(MPa.m1/2): 4

Compression-resistant strength(MPa): ≥850

Bend-resistant(MPa): 300

Thermal conductivity(W/m.K): 24

Thermal expansion coefficient(10-6 m/m.K): 5.0-8.3

Rubber Technical Specification

Shore A hardness: duro 55-65

Tensile strength: ≥12 Mpa

Elongation at rupture: ≥250%

Elongation permanent deformation: ≤24%

Ceramic and rubber composite bond strength: ≥4.0Mpa

Material Description

Material Specification for Alumina Ceramic Lined Rubber Hose

This specification outlines the core material composition, key parameters and application benefits of the alumina ceramic lined rubber hose, for reference in product selection and use. Core structure: 95% alumina wear-resistant ceramic lining + natural rubber-based compound rubber outer layer (with optional reinforcement layer).

I. Core Material Composition and Characteristics

The composite design combines ceramic’s wear resistance with rubber’s flexibility/impact resistance/sealing, suitable for wear-intensive material conveying.

(I) Lining Material: 95% Alumina Content Wear-Resistant Ceramic

High-purity 95% alumina ceramic (advanced sintering process) serves as the wear-resistant core, with excellent wear resistance, high-temperature tolerance and chemical stability.

1. Main Components and Content

Al₂O₃ ≥ 95%; auxiliary sintering aids (SiO₂, MgO, etc.) ≤ 5% to optimize sintering performance and mechanical strength.

2. Key Technical Parameters

Al₂O₃ Content: ≥ 95%;
Density: 3.6 g/cm³;
Rockwell Hardness (HRA): 85;
Fracture Toughness: 4 MPa·m¹/²;
Compressive Strength: ≥ 850 MPa;
Bending Strength: 300 MPa;
Thermal Conductivity: 24 W/m·K;
Thermal Expansion Coefficient: 5.0-8.3×10⁻⁶ m/m·K.

3. Material Function and Advantages

Directly contacts materials, resisting scouring by ore/coal. Smooth surface (friction coefficient ≤ 0.15) reduces energy consumption and eases cleaning.

(II) Outer Layer Material: Natural Rubber-Based Compound Rubber

Natural rubber (NR)-based compound rubber (optimized formulation) offers good flexibility, tear resistance and weather resistance.

1. Main Components and Ratio

NR ≥ 70%, blended with carbon black, sulfur, accelerators and anti-aging agents to balance mechanical properties.

2. Key Technical Parameters

Shore A Hardness: 55-65;
Tensile Strength: ≥ 12 MPa;
Elongation at Rupture: ≥ 250%;
Permanent Deformation Rate: ≤ 24%;
Ceramic-Rubber Bond Strength: ≥ 4.0 MPa.

3. Material Function and Advantages

Protects ceramic lining, provides sealing/flexibility, absorbs vibration, resists outdoor erosion and prevents material leakage.

II. Material Compatibility and Application Advantages

Synergistic material performance ensures wear/impact resistance and flexibility. Bond strength ≥ 4.0 MPa. Ideal for mining/metallurgy (granular/powder conveying), service life 5-10x longer than ordinary hoses, lowering maintenance costs.

III. Material Usage Precautions

Precautions:

1. Avoid over-temperature (≤ 120℃);

2. Do not convey hydrofluoric acid/concentrated alkali/corrosive solvents;

3. Prevent scratches/excessive bending (radius ≥ 10x inner diameter);

4. Store in dry, ventilated and dark environment away from sunlight/oil/chemicals.

Product Advantages

Ceramic inner lining with high hardness (HRC≥85), wear/impact resistance far exceeding ordinary rubber hoses, service life increased by 5-20 times;
Rubber layer absorbs shock and resists cracking, suitable for complex working conditions;
Lightweight design for easy installation and maintenance;
Acid and alkali corrosion resistance, applicable to powder/slurry transportation in mining, metallurgy, etc.,
Combining ceramic wear resistance with rubber flexibility, with outstanding cost performance.

Application Scenarios

Thanks to its wear resistance, corrosion resistance and other characteristics, wear-resistant ceramic rubber hoses are widely used in material transportation scenarios across multiple industrial fields, as follows:

1. **Mining and coal industry**: Suitable for the transportation of ore pulp in copper and iron mines, as well as the transfer of tailings, sand and gravel; also applicable to the transportation of coal powder and slime in coal mines underground, and the transportation of heavy media in coal preparation plants, which can resist particle scouring and reduce leakage.

2. **Power industry**: Commonly used in the ash and slag transportation system of power plants, and also suitable for the slurry transportation pipeline in the desulfurization and denitrification process, which can cope with ash and slag scouring and acid-base corrosion of desulfurization slurry, reducing the probability of equipment failure.

3. **Building materials industry**: In cement plants, it can be used for the transportation of limestone, coal powder, finished cement and other materials, and also suitable for the transfer of relevant materials in emery plants and silica powder plants, which can reduce dust leakage and pipeline wear.

4. **Chemical industry**: Suitable for scenarios such as the transportation of phosphoric acid and sulfuric acid in phosphate fertilizer plants, and the transportation of caustic soda solution in chlor-alkali plants, as well as the transportation of various wear-resistant granular materials, ensuring the safe and stable transportation of materials.

5. **Dredging and construction field**: Can be used for the transportation of sediment by suction dredgers during port and river dredging; also suitable for the transportation of relevant materials by concrete pump trucks and the transfer of materials in construction sandblasting operations, adapting to complex outdoor working conditions.

Dimensions & Specifications

No.	ID/OD (mm)	Min. R (mm)	Ceramic Thickness(mm)	No.	ID/OD (mm)	Min. R (mm)	Ceramic Thickness(mm)
1	32/57	450	3mm	17	245/294	4900	5mm
2	38/61	400	3mm	18	260/307	5100	5mm
3	48/73	500	3mm	19	273/331	5100	5mm
4	63/86	650	3mm	20	299/354	5980	5mm
5	76/115	1000	3mm	21	325/382	6500	5mm
6	89/134	1000	3mm	22	350/393	OVER 7000mm	5mm
7	102/149	1100	5mm	23	377/426	OVER 7000mm	5mm
8	108/154	1250	5mm	24	402/451	OVER 7000mm	5mm
9	127/172	1500	5mm	25	457/511	OVER 7000mm	5mm
10	133/183	2800	5mm	26	480/529	OVER 7000mm	5mm
11	152/197	3040	5mm	27	530/583	OVER 7000mm	5mm
12	170/171	3500	5mm	28	560/614	OVER 7000mm	5mm
13	183/230	3650	5mm	29	630/686	OVER 7000mm	5mm
14	199/240	4100	5mm	30	560/615	OVER 7000mm	5mm
15	203/256	4150	5mm	31	630/685	OVER 7000mm	5mm
16	219/264	4150	5mm

安装说明 Installation Instructions

质量认证 Quality Certifications

交货周期 Lead Time

包装与运输 Packaging & Shipping

售后服务 After-Sales Service

库存信息 Availability

常见问题 FAQ

We offer custom-made services tailored to your specific requirements.

Custom inner & outer diameters

Min inner diameter is 32mm, Max outer diameter is 1500mm

Custom Length

Max. length is 20m

Custom hose connection types

Flange, Quick coulping, Clamp, Threaded…

Custom Logo

We offer exclusive logo customization on the hose for you.

Why Choose Us?

As a professional supplier of wear-resistant ceramic products, we are your solid lighthouse in the harsh industrial environment—guiding you to durable, high-performance ceramic solutions that stand up to abrasion, impact, and corrosion.

Over 10 years of expertise in ceramic product R&D and manufacturing