General Elevator Belt

The YUFENG General Elevator Belt is a high-performance vertical-lift conveyor belt independently developed and manufactured by our factory, specifically designed for bucket elevator systems that lift bulk materials vertically-. Unlike horizontal or inclined conveyor belts that simply carry materials on their surface, an elevator belt serves as the traction member of the entire bucket elevator – buckets are bolted onto the belt at precise intervals, scooping material from the boot (bottom) and discharging it over the head (top) pulley.

Vertical bucket elevators operate under continuous lifting tension, making belt performance fundamentally different from that of conventional horizontal conveyor belts. The YUFENG Belt is designed around the key mechanical requirements of vertical conveying, including high tensile strength, low elongation, secure bucket fastening and resistance to repeated loading stress.

1. High Tensile Strength

The belt must support the combined weight of the buckets, conveyed material and belt itself throughout the vertical lifting distance. A reinforced carcass provides the required tensile capacity for continuous elevator operation.

2. Low Elongation

Controlled belt elongation helps maintain consistent bucket spacing and alignment during operation, reducing the risk of material spillage and minimizing the need for frequent tension adjustment.

3. Secure Bolt-Hole Retention

Bucket fixing points are exposed to repeated tensile and impact loads. The belt structure is designed to maintain strength around the bolt holes and reduce tearing or deformation during continuous bucket movement.

4. CBS Construction

The CBS construction provides rubber covering on both sides of the carcass, helping protect the belt structure from bolt stress, abrasion and contact with pulleys during repeated elevator operation.

5. Impact Resistance

Material loading at the elevator boot creates repeated impact on the belt and buckets. The reinforced belt structure helps absorb these dynamic loads and supports stable operation during continuous feeding and lifting.

Typical Vertical Conveying Applications

YUFENG General Elevator Belt is suitable for grain handling, cement production, mining, feed milling and food processing applications where continuous vertical material lifting requires stable belt performance, secure bucket attachment and consistent operation.

Elevator Belt Design Requirements & Structural Features

1. Vertical Lifting Structure

Unlike conventional conveyor belts used mainly for horizontal or inclined conveying, elevator belts operate in a vertical lifting system where buckets carry the material. The belt therefore needs sufficient tensile strength to support the belt, buckets and conveyed material throughout the lifting height, while maintaining stable performance during continuous operation.

2. Flex Fatigue Resistance

During operation, the belt repeatedly passes around the head and boot pulleys. The carcass and rubber layers are therefore designed to withstand repeated bending and flexing, helping reduce fatigue damage and maintain structural integrity over extended operating cycles.

3. CBS Cover Construction

The belt adopts CBS (Cover Both Sides) construction, providing rubber protection on both the bucket side and pulley side. The carrying-side cover helps protect the carcass from bucket bolt stress, material impact and abrasion, while the pulley-side cover provides protection against pulley contact and supports reliable traction during driving.

4. Precision Bucket Hole Positioning

Accurate bolt-hole positioning is essential for proper bucket installation and consistent bucket spacing. YUFENG supports centered and staggered hole layouts, multiple standard patterns from P1 to P9, as well as customized punching based on individual bucket specifications.

5. Customized Punching Compatibility

The punching dimensions, spacing and layout can be matched to different bucket designs and elevator configurations. This allows the finished belt to be prepared according to the customer's bucket drawings, reducing installation adjustments and helping maintain accurate bucket alignment during operation.

Material Selection & Manufacturing Process

1. Carcass Construction Options

YUFENG selects the tensile carcass according to lifting height, bucket load, conveying capacity and material characteristics. Fabric-core structures are available in EP polyester/nylon, NN nylon and CC cotton constructions, with tensile strength up to 300 N/mm for grain, feed and light-to-medium-duty vertical lifting. For heavy-duty mining, cement plants, long-distance vertical lifts and abrasive materials, ST-series steel cord reinforcement from ST630 to ST5000 is available to provide higher tensile strength and lower elongation.

2. Cover Material Selection

Different cover compounds are available for specific conveying materials and operating environments. SBR/MOR rubber provides abrasion resistance, traction and durability for grain, aggregate, mining, cement, coal and sand. PVC offers a cost-effective option with chemical and moisture resistance for light and medium-duty grain and feed applications. FDA 21 CFR-compliant white nitrile is available for food-contact materials such as sugar, flour, rice, cereal and pet food. Fire-retardant and anti-static compounds are available for grain, coal and other applications requiring additional safety protection.

3. Specialized Belt Types

For different material and temperature conditions, YUFENG can supply Type D for highly abrasive materials, Type L for general conveying applications and Type T for elevated-temperature materials. The final construction can be selected according to the actual lifting height, material properties, operating temperature and equipment requirements.

4. Manufacturing & Quality Control

The production process includes precision calendering for uniform rubber coverage, hot vulcanization for integrated bonding between the carcass and covers, and precision punching according to the customer's bucket-hole pattern. Finished belts undergo tensile strength, elongation, interlayer adhesion and bolt-hole retention testing before shipment to verify structural consistency and installation reliability.

Field Performance & Application Verification

1. Tensile Capacity for Vertical Lifting

Based on six months of field tracking across grain, cement and mining applications, YUFENG fabric-core elevator belts provide tensile strength up to 300 N/mm, while steel-cord constructions cover ST630 to ST5000 for demanding vertical lifting systems. Compared with standard fabric belts used without dedicated elevator construction, these options provide greater load capacity and better dimensional stability.

2. Elongation & Bucket Alignment

Under rated loading conditions, YUFENG elevator belts are designed to maintain permanent elongation at or below 0.5%, helping preserve bucket spacing and alignment during long-term operation. This is particularly important for high-lift systems where excessive belt elongation can affect bucket tracking and material discharge.

3. Bolt-Hole Retention & Service Life

Precision punching and reinforced belt construction help maintain the geometry and strength of bucket mounting holes during repeated loading. Under standard operating conditions, fabric-core CBS elevator belts can provide an expected service life of approximately 5–8 years, while steel-cord CBS designs can exceed 10 years depending on load, material and maintenance conditions.

4. Installation Efficiency

Pre-punched belt configurations reduce on-site hole-positioning work and simplify bucket installation. When combined with the customer's existing joining method and equipment configuration, the prepared belt can significantly reduce installation time compared with conventional belts requiring additional site preparation.

Application Experience & Customer Projects

1. Grain Handling — United States

A grain handling facility in the American Midwest required an elevator belt for an 80-meter vertical lift transporting corn and soybeans at more than 500 tons per hour. YUFENG supplied a 4-ply EP fabric CBS elevator belt with bolt holes matched to the existing buckets. After 24 months of continuous operation, the belt showed limited wear and the customer reported no unplanned belt-related downtime.

2. Cement Raw Material Handling — Germany

A cement plant required a belt for a raw mill bucket elevator handling coarse limestone at approximately 150 tons per hour. YUFENG supplied an ST1600 steel-cord elevator belt with reinforced tear resistance and customized bolt-hole spacing. After 36 months of operation, the belt remained in service with stable structural performance and no reported premature wear.

3. Feed Processing — Southeast Asia

A feed mill handling corn, soybean meal and finished pellets required a belt suitable for hygiene-sensitive applications. YUFENG supplied FDA 21 CFR-compliant white nitrile CBS elevator belts with customized bucket-hole patterns. The dual-sided cover structure provided protection against material abrasion, bolt stress and pulley contact, while the food-contact cover material supported the customer's hygiene requirements.

4. Underground Coal Handling — Australia

An underground coal mine required a vertical lifting belt with fire-retardant and anti-static properties. YUFENG supplied a fire-retardant CBS elevator belt with anti-static compound. The belt has operated for more than 24 months without reported premature wear or safety-related belt failure.

5. Project Verification Materials

YUFENG can provide available production records, testing documentation, application photographs and project reference materials for customer evaluation. Belt construction, cover compound, tensile carcass and punching specifications can be matched to the actual elevator configuration before production.

Complete Product Specification Parameters

YUFENG supports full-size production and custom processing of belts, covering multiple constructions, materials, and configurations:

Why YUFENG General Elevator Belt

1. CBS Structure for Reliable Vertical Operation

YUFENG Belt uses CBS (Cover Both Sides) construction, with rubber or PVC covers on both sides of the belt. The bucket side is designed to withstand bolt stress, material impact and abrasion, while the pulley side protects the belt from pulley contact and maintains stable traction. This dual-sided structure is designed specifically for continuous vertical lifting applications.

2. Precision Punching for Accurate Bucket Installation

Each belt can be punched according to the required bucket mounting pattern, including centered holes, staggered holes, standard P1–P9 configurations and fully customized layouts. Accurate hole positioning helps maintain consistent bucket spacing, secure bucket attachment and stable material discharge while reducing the risk of premature hole deformation.

3. Material Options for Different Conveying Conditions

YUFENG provides different cover and carcass combinations according to the conveyed material and operating environment. SBR/MOR rubber is suitable for general grain, aggregate and bulk material handling, while fire-retardant and anti-static compounds are available for applications with additional safety requirements. Food-contact applications can also be equipped with suitable specialized cover materials.

4. Fabric or Steel Cord Construction

The tensile carcass can be selected according to lifting height, conveying capacity and operating load. EP, NN and CC fabric constructions are suitable for grain, feed and light-to-medium-duty vertical lifting, while ST630–ST5000 steel cord constructions provide higher tensile capacity and lower elongation for heavy-duty mining, cement and long-distance elevator systems.

5. Factory Manufacturing & Technical Support

With more than 10 years of elevator belt manufacturing experience, YUFENG provides support throughout the product selection and supply process. Customers can receive assistance with carcass selection, cover material, belt dimensions, tensile requirements and bucket-hole specifications. Factory-direct production, customized manufacturing and technical guidance are available for standard and project-specific elevator belt requirements.

Suitable Applications

Our general elevator belt is especially recommended for:

FAQ

1. How Is a General Elevator Belt Different from a Standard Conveyor Belt?

A belt is designed for vertical material lifting rather than horizontal or inclined conveying. It works with buckets that are attached directly to the belt, so the belt must withstand the combined weight of the buckets, conveyed material and belt over the lifting height. Compared with standard conveyor belts, elevator belts require CBS construction, controlled elongation, reinforced bolt-hole areas and accurate bucket-hole positioning to maintain stable vertical operation.

2. What Does CBS Mean in an Elevator Belt?

CBS means Cover Both Sides. Rubber or PVC covers are applied to both the bucket side and pulley side of the belt. The bucket side helps protect the carcass from bolt stress, material impact and abrasion, while the pulley side provides protection against pulley contact and supports reliable traction. This construction is an important part of elevator belt design for continuous vertical lifting.

3. Can the Belt Be Punched According to Our Existing Buckets?

Yes. YUFENG supports centered, staggered, standard P1–P9 and customized bolt-hole layouts. Hole diameter, spacing and position can be produced according to the bucket drawing or equipment requirements. Providing the bucket model, mounting dimensions or technical drawing allows the punching pattern to be checked before production.

4. When Should I Choose a Fabric-Core or Steel-Cord Belt?

Fabric-core EP, NN or CC belts are generally suitable for shorter lifting heights and light-to-medium conveying duties such as grain, feed and general bulk materials. Steel-cord ST-series belts are more suitable for high lifting heights, heavy loads and demanding materials found in mining and cement applications. The final selection should consider lifting height, belt width, bucket capacity, conveying rate and operating conditions rather than height alone.

5. How Long Can a General Elevator Belt Typically Operate?

Service life varies with lifting height, load, material abrasiveness, belt tension, operating speed and maintenance. Under standard conditions, YUFENG fabric-core CBS elevator belts can typically provide 5–8 years of service, while properly selected steel-cord CBS belts can exceed 10 years. Regular inspection of belt tension, bucket bolts, splice areas and belt surfaces helps maintain operating life.

6. Are Food-Grade Elevator Belts Available?

Yes. YUFENG can supply white nitrile CBS elevator belts designed for food-contact applications, including sugar, flour, rice, cereals, pet food and other food ingredients. Suitable food-contact materials can be selected according to the required compliance, cleaning conditions and conveyed product.

7. Are Fire-Retardant and Anti-Static Versions Available?

Yes. Fire-retardant and anti-static elevator belt constructions are available for applications where fire prevention and static control are important. Typical uses include grain elevators, coal handling systems and other environments where combustible dust or static discharge may create additional safety concerns. The required compound should be selected according to the applicable equipment and site safety requirements.

8. What Information Is Needed for Belt Selection?

For accurate specification matching, customers can provide the elevator lifting height, belt width, conveying capacity, material type, bucket size, operating temperature, belt speed and existing bolt-hole dimensions. Based on these parameters, YUFENG can recommend the appropriate carcass construction, cover material, belt thickness and punching configuration.

Request a General Elevator Belt Solution

1. Send Your Equipment Parameters

Provide the elevator dimensions, lifting height, conveying material and bucket specifications. Our technical team can review the operating requirements and recommend a suitable belt construction.

2. Confirm Belt & Punching Specifications

Before production, belt dimensions, carcass type, cover material and bolt-hole pattern can be confirmed against your equipment or bucket drawings to reduce installation issues.

3. Request Samples or a Factory Quotation

Contact YUFENG for available samples, technical specifications and a factory quotation based on your actual vertical conveying requirements.