Oil Resistant Conveyor Belt

YUFENG Oil Resistant Conveyor Belt is engineered and manufactured in our self-owned fully automatic vulcanization workshops with dedicated oil-resistant belt production lines. With 18 years of heavy-duty rubber production experience, YUFENG specializes in developing high-performance NBR-based oil-proof conveyor belts designed to solve complex oily material conveying challenges in oil & gas, petrochemical, food processing and port industries.

Through years of field experience, we found that conveyor belt failures in oily environments are not caused by oil exposure alone. Common failure factors include rubber swelling, reduced interlayer adhesion, oil penetration into the reinforcement layers and accelerated aging-related abrasion. To address these challenges, YUFENG focuses on systematic material engineering rather than simple rubber formulation adjustments.

Our R&D team has developed a multi-layer oil protection system integrating oil-resistant cover rubber, enhanced bonding interfaces and specially treated carcass materials. This advanced structure helps prevent oil penetration, maintain tensile strength and improve resistance to swelling, delamination and wear during long-term operation. All performance data is verified through standardized laboratory oil immersion tests and real-world application feedback, ensuring stable and reliable conveying performance in demanding oily working conditions.

Three-Layer Oil Defense Technology System

1. High-Acrylonitrile NBR Cover Rubber

The outer cover uses high-acrylonitrile nitrile rubber (NBR) as the base polymer, combined with oil-resistant carbon black and anti-aging additives. The standard grade contains 28% acrylonitrile, with volume swelling ≤10% after 72 hours of #20 oil immersion, while the heavy-duty grade contains 34% acrylonitrile, with volume swelling ≤5% under the same test conditions. 

After 168 hours of continuous oil immersion at 70℃, tensile strength retention remains ≥82%. The cover rubber is suitable for contact with mineral oil, lubricating oil, crude oil, diesel and other petroleum-based materials. A surface oil-repellent treatment also helps reduce oil adhesion and simplify cleaning.

2. Oil-Resistant Bonding Interface

The bonding layer is designed to reduce interlayer delamination caused by prolonged oil exposure. A dedicated oil-resistant adhesive system maintains stable bonding performance in mineral oil environments, with interlayer adhesion ≥2.2N/mm after 168 hours of oil immersion. The double-vulcanization bonding process forms a stronger connection between the rubber and carcass layers, helping prevent oil from penetrating into the internal structure through damaged or exposed areas.

3. Oil-Resistant Carcass Canvas

The carcass uses EP canvas pre-treated with an oil-resistant polymer during manufacturing. The treated canvas maintains fiber strength retention of ≥90% after long-term oil contact and helps preserve dimensional stability without significant elongation or shrinkage. Its structure also maintains good troughability under oily operating conditions, supporting stable material loading and reducing material spillage.

Oil Type Compatibility & Application Guide

Custom size range: Belt width 500–3200mm, 3–8 canvas plies, total thickness 5–30mm, moulded sealed edges optional. Composite formulas available: oil+heat, oil+wear, oil+flame retardant, oil+food grade. All specifications comply with DIN22102, ISO4195 and GB/T 7984 standards.

Controlled Laboratory Oil Immersion Test & Field Validation

1. Laboratory Comparative Test

We conducted a controlled comparative test in our material testing laboratory and subsequently validated the results through a 12-month field trial at a domestic oilfield. The test compared YUFENG Heavy-duty Oil Resistant Conveyor Belt with two mainstream market products under the same conditions. Samples were immersed in 70℃ #20 mineral oil for 168 hours, with volume swelling, tensile strength retention and interlayer adhesion measured after testing.

2. Comparative Test Results

3. Performance Evaluation

Competitor A showed significant volume swelling and reduced tensile strength after oil immersion, indicating a higher risk of softening and interlayer delamination. Competitor B provided better oil resistance and structural stability, but with a higher product cost. YUFENG Heavy-duty Oil Resistant Belt achieved lower volume swelling, higher tensile strength retention and stronger interlayer adhesion under the same test conditions, with a reported cost approximately 40% lower than the premium imported belt.

Field Failure Mode Comparison

Real Application Cases Across Different Industries

Case 1: Shengli Oilfield Sludge Conveying System – Heavy Industry

The oilfield operates 7 sludge conveying lines handling high-oil-content drilling waste (18–22% oil content). They previously used general-purpose rubber belts that required replacement every 3–4 months due to severe oil swelling, softening and frequent splice failures. After switching to YUFENG Heavy-duty Oil Resistant Belts in 2023, average service life extended to 15 months per belt, replacement frequency reduced by 70%, and annual belt procurement + downtime labor cost decreased by $32,000. The client signed a 3-year exclusive supply agreement covering all 7 conveying lines.

Case 2: Indonesia Palm Oil Processing Plant – Food Industry

The palm oil refinery needed food-safe conveyor belts that could withstand continuous contact with hot crude palm oil (60–70℃). Imported European food-grade belts cost 2.8 times more with only 8-month service life. We developed a customized oil + heat dual resistant food-grade formula, passed local food contact safety certification, and delivered belts that ran stably for 12 months – matching imported belt performance at less than half the price. The client has since expanded the order to 5 more production lines and become our long-term partner in Southeast Asia.

Typical Application Scenarios

1. Oil & Gas Upstream

Suitable for crude oil transfer, drilling mud conveying, oily sludge treatment and produced water handling systems.

2. Petrochemical & Refining

Used for refinery product handling, oily chemical material conveying and lubricant production lines where the belt is exposed to oil-based substances.

3. Food Processing

Applicable to edible oil production, palm oil processing, oilseed processing and other conveying applications involving oily food materials.

4. Port & Logistics

Suitable for handling oily bulk cargo, oil-contaminated minerals and other oily materials during port and logistics operations.

5. Machinery & Manufacturing

Used for conveying oily metal scrap, lubricant-coated stamping parts and oil-contaminated industrial waste in manufacturing facilities.

Practical Selection & Maintenance Tips

1. Product Selection

First identify the oil type, such as mineral oil or vegetable oil, and estimate the oil content of the conveyed material. Select the Standard or Heavy-duty grade accordingly. Additional functions such as heat resistance, wear resistance or food-grade requirements can be combined based on the actual working conditions.

2. Installation Requirements

Proper belt tension is important for stable operation. Excessive tension may accelerate fatigue under oily working conditions. Return rollers and belt scrapers should also be kept clean to reduce oil accumulation on the underside of the belt.

3. Routine Maintenance

Inspect belt edges regularly for signs of oil penetration and repair minor surface damage promptly to prevent oil from reaching the carcass layers. Regularly cleaning oil residue from rollers can also help maintain stable operation and extend belt service life.

Factory Capability, Quality Certifications & Service

1. Production Capability

YUFENG operates 5 fully automatic vulcanization production lines with dedicated oil-resistant conveyor belt manufacturing sections. The monthly production capacity reaches 130,000 meters, supporting both full-container bulk orders and small-batch custom trial orders.

2. Quality & Trust Credentials

YUFENG follows ISO9001 quality management requirements and provides SGS oil resistance performance testing, BV factory audit documentation and DIN standard compliance. Products are exported to more than 35 countries across Southeast Asia, the Middle East, Africa, South America and Eastern Europe.

3. Warranty & Technical Support

Each product is covered by a 12-month warranty, with remote technical support available for installation, commissioning and routine maintenance. Factory services include oil resistance sample testing and customized formula development. Sample orders can generally be arranged within 3–7 days, while mass production typically requires 10–25 days depending on specifications and order quantity.

How to Get Started

1. Request a Sample

Submit an inquiry to request YUFENG Oil Resistant Conveyor Belt samples for oil immersion testing or on-site application trials.

2. Request a Factory Quotation

Send your material oil content, belt dimensions, conveying capacity and working conditions. Our technical team can recommend a suitable specification and provide a tailored quotation.

3. Obtain Technical Documentation

Technical documentation can include grade selection guidance, product parameter tables and available third-party test reports in PDF format.

Contact YUFENG

Contact YUFENG for Oil Resistant Conveyor Belt samples, technical specifications and factory quotations based on your actual conveying requirements.

FAQ

Q1: Is one oil resistant belt suitable for all types of oil?

No. Different types of oil have different effects on rubber materials. Mineral oils such as crude oil and lubricating oil, as well as vegetable oils such as palm oil and soybean oil, have different chemical properties and swelling effects. Our Standard grade is suitable for most mineral oil and vegetable oil applications, while the Heavy-duty grade is recommended for high oil content materials or more aggressive petroleum products. 

For special conditions involving solvents, strong acids or chemicals, customized formulas can be developed according to actual requirements. Customers can provide material information or oil samples for professional grade selection and testing support.

Q2: How long can an oil resistant conveyor belt last in actual production?

The service life of an oil resistant belt depends on several factors, including oil content, material abrasiveness and operating temperature. Based on practical application experience, light oil conditions with oil content ≤5% and non-abrasive materials generally achieve 16–24 months of service life. Medium oil conditions with 5–15% oil content typically achieve 12–18 months, while heavy oil conditions involving 15–25% oil content and abrasive sludge generally achieve 8–14 months. Compared with ordinary SBR belts, oil resistant belts can significantly reduce replacement frequency and maintenance downtime under the same operating conditions.

Q3: Can you provide customized oil resistant belts with additional functions?

Yes. We provide customized solutions for different working conditions, including oil and heat resistant belts for hot oily materials, oil and wear resistant belts for abrasive oily sludge, oil and flame retardant belts for oilfield and refinery applications, and food-grade oil resistant belts for edible oil processing. Structural customization options include anti-tear reinforcement, moulded sealed edges, sidewall cleats and different cover thickness designs.

Q4: What is the minimum order quantity for samples and production orders?

For sample testing, no minimum order quantity is required. We can provide 1–2 meter samples for oil resistance testing, with sample preparation generally completed within 3–7 days. Standard production orders usually require a minimum quantity of 100 meters, while customized formulas or special structures may require a minimum order quantity of 500 meters depending on production requirements.

Closing

If your production line suffers from frequent belt replacements, unexpected downtime and high maintenance costs caused by oily material handling, YUFENG Oil Resistant Conveyor Belts offer a proven, cost-effective solution backed by 18 years of field experience across 35+ countries.

Our technical team can analyze your specific working conditions, oil type and material characteristics to recommend the optimal belt grade and formula that maximizes service life while minimizing total cost. Send us an inquiry today – let our oil-resistant conveying experts help you find the right solution for your oily material handling challenges!