Dual-Resistance PVC Conveyor Rollers for Mining

Dual-Resistant PVC Conveyor Rollers

Definition & Composition:
Dual-Resistant PVC Rollers are a type of belt conveyor idler composed of three main parts: a PVC roller shell with anti-static and flame-retardant properties, a central shaft, and bearing assemblies.

Performance Characteristics:

Excellent Dual-Resistant Properties: Through the addition of specialized flame retardants and anti-static agents, the rollers possess excellent flame retardancy and anti-static performance. They can operate stably in environments ranging from -40°C to 80°C.
High Wear Resistance: Manufactured using modified materials with a low wear coefficient, they prevent material adhesion and buildup. This can extend belt service life by 1 to 2 times.
Superior Corrosion Resistance: Their corrosion resistance is over 10 times greater than that of steel rollers, making them suitable for damp, watery, dusty, and muddy environments with pollutants.
Effective Sealing: Feature waterproof, dustproof, and anti-gas corrosion sealing, significantly extending the service life of the internal bearings.
Lightweight: Weigh approximately 1/3 less than equivalent metal rollers, facilitating easier handling and installation, thereby reducing worker fatigue.
Noise Reduction & Eco-Friendly: The thermoplastic material has vibration-dampening properties, which reduces contact noise between the belt fastener and the roller shell, contributing to a more environmentally friendly and quieter workplace.

Application:
Dual-Resistant PVC Roller Tubes are primarily used in conveyor systems across industries such as mining, chemical processing, food processing, and docks/ports, ensuring safe operation and extending equipment service life.

Product Features:

Premium Material & High Strength: Manufactured from high-quality materials for superior strength, ensuring smooth rotation without jamming.
Durable & Wear-Resistant: Excellent wear resistance enhances durability and significantly increases service life.
Stable Performance & Lightweight: Features stable performance, light weight, minimal runout, strong oxidation resistance, and high precision. These qualities reduce operational resistance and ensure robust, long-lasting use.
Reliable & User-Friendly: Provides accurate and flexible power transmission, resists slippage during operation, and is resistant to breaking and delamination.
Customizable Solutions: As a direct manufacturer, we support customization to meet the specific needs of various application scenarios, offering convenient and tailored solutions.

Component	Specific Parameter
Tube Diameter	Common specifications: φ89mm, φ108mm, φ133mm, φ159mm
Tube Wall Thickness	Corresponding wall thickness: 8.2mm, 10mm, 10mm, 10mm. Thicker than equivalent steel rollers to ensure structural stability.

Component

Specific Parameter

Tube Diameter

Common specifications: φ89mm, φ108mm, φ133mm, φ159mm

Tube Wall Thickness

Corresponding wall thickness: 8.2mm, 10mm, 10mm, 10mm. Thicker than equivalent steel rollers to ensure structural stability.

Performance Indicator	Specific Parameter
Specific Gravity	1.5 g/cm³, significantly lower than the 7.8 g/cm³ of steel rollers. Weight is only about 1/3 of equivalent metal rollers.
Tensile Strength	≥ 40 MPa. Withstands tension and impact during conveying, resistant to breakage and deformation.
Elongation at Break	≥ 30%. Possesses good flexibility to accommodate minor deformation needs under different working conditions.
Notched Impact Strength	≥ 20.4 kg/cm³. High impact resistance, capable of withstanding collision impacts during material conveying.
Hardness	≥ 95 HRa. High surface hardness, excellent wear resistance. Wear coefficient is far lower than standard tubing.

Performance Indicator

Specific Parameter

Specific Gravity

1.5 g/cm³, significantly lower than the 7.8 g/cm³ of steel rollers. Weight is only about 1/3 of equivalent metal rollers.

Tensile Strength

≥ 40 MPa. Withstands tension and impact during conveying, resistant to breakage and deformation.

Elongation at Break

≥ 30%. Possesses good flexibility to accommodate minor deformation needs under different working conditions.

Notched Impact Strength

≥ 20.4 kg/cm³. High impact resistance, capable of withstanding collision impacts during material conveying.

Hardness

≥ 95 HRa. High surface hardness, excellent wear resistance. Wear coefficient is far lower than standard tubing.

Performance Category	Test Parameter Requirements
Anti-Static Property	Core test indicators are the average surface resistivity of the upper surface and the average surface resistivity of the lower surface. Can meet anti-static specifications for flammable and explosive scenarios like coal mines.
Alcohol Spray Lamp Burning Test	• Average flaming burn time ≤ 3s; Max flaming burn time ≤ 10s. • Average afterglow burn time ≤ 10s; Max afterglow burn time ≤ 30s. • Flame spread length ≤ 280mm.
Alcohol Lamp Burning Test	• Max flaming burn time ≤ 12s. • Afterglow burn time ≤ 60s. • Flame spread length ≤ 250mm. (Significant flame-retardant effect)

Performance Category

Test Parameter Requirements

Anti-Static Property

Core test indicators are the average surface resistivity of the upper surface and the average surface resistivity of the lower surface. Can meet anti-static specifications for flammable and explosive scenarios like coal mines.

Alcohol Spray Lamp Burning Test

• Average flaming burn time ≤ 3s; Max flaming burn time ≤ 10s.
• Average afterglow burn time ≤ 10s; Max afterglow burn time ≤ 30s.
• Flame spread length ≤ 280mm.

Alcohol Lamp Burning Test

• Max flaming burn time ≤ 12s.
• Afterglow burn time ≤ 60s.
• Flame spread length ≤ 250mm.
(Significant flame-retardant effect)

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Dual-Resistant PVC Conveyor Rollers

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