PVC/PVG Solid Woven Flame-Retardant Conveyor Belt

What Is a Solid Woven Conveyor Belt?

A Solid Woven Conveyor Belt is a heavy-duty conveyor belt manufactured with a single integrated woven textile carcass instead of multiple separately bonded fabric plies. The solid woven carcass is impregnated with PVC compound and plasticized to form a unified load-bearing belt body with good tensile strength, controlled elongation, impact resistance, tear resistance and dimensional stability. This integrated construction also helps reduce the risk of ply separation that can occur in conventional multi-ply conveyor belts.

Solid woven conveyor belts are primarily divided into PVC Solid Woven Conveyor Belts and PVG Solid Woven Conveyor Belts and are widely used for underground coal mine conveying. PVC type uses PVC cover compounds on both the top and bottom surfaces, with a typical cover thickness of ≥0.8 mm. PVG type uses rubber and PVC combined cover compounds on both surfaces, with typical cover thicknesses of 1.5–4.5 mm, providing improved abrasion resistance, impact resistance, wet grip and surface durability for more demanding operating conditions.

With their integrated carcass structure and available flame-resistant and anti-static performance, PVC/PVG Solid Woven Conveyor Belts are suitable for underground coal transportation, inclined roadways, main roadway and trunk conveyors, loading and transfer points, and other demanding mine conveying systems. PVG construction is generally preferred for wetter, more abrasive or higher-impact conditions, while the final belt type, strength grade, width, cover thickness and construction should be selected according to conveyor tension, conveying distance, inclination, material condition and applicable mine safety requirements.

Why Choose PVC/PVG Solid Woven Conveyor Belt

◆ Integrated Solid Woven Carcass & High Tensile Strength: We manufacture our PVC/PVG Solid Woven Conveyor Belts with a single integrated textile carcass rather than multiple separately bonded fabric plies, helping eliminate conventional inter-ply separation and maintain a relatively lightweight, stable belt structure. The carcass uses high-strength, low-elongation polyester yarns in the longitudinal direction and high-strength nylon yarns with suitable transverse modulus, providing a balance of tensile strength, impact absorption and flexibility. We can produce strength grades from 680S to 2240S, with longitudinal tensile strength from 680 N/mm to 2240 N/mm and transverse tensile strength from approximately 265 N/mm to 450 N/mm.
◆ Flame-Resistant & Anti-Static Safety Performance: We design our solid woven conveyor belts for underground coal conveying systems where flame resistance and static-electricity control are essential. The finished belt can achieve surface electrical resistance of ≤3.0 × 10⁸ Ω. In alcohol-lamp flame testing, the average flame and afterglow duration can be controlled to ≤3 seconds, with an individual value of ≤10 seconds, helping reduce the risks associated with ignition and static accumulation in underground and enclosed conveyor systems.
◆ Controlled Drum-Friction Safety: We control drum-friction performance to reduce the risk of excessive heat generation when belt slip occurs against a rotating pulley. Under specified drum-friction test conditions, our flame-resistant solid woven belt is designed to show no flaming or glowing combustion, while the drum surface temperature is controlled to ≤325°C. This provides an additional level of safety for continuous underground conveying where pulley slip or abnormal friction may occur.
◆ High Impact, Tear & Abrasion Resistance: The integrated woven carcass provides strong resistance to repeated material impact and longitudinal tearing, making the belt suitable for loading zones, transfer points and other demanding sections of a coal conveying system. For more severe conditions, our PVG construction uses a rubber-enhanced cover with tensile strength of ≥10 MPa, elongation at break of ≥350%, and abrasion loss of ≤200 mm³, providing improved resistance to surface wear, cutting and repeated impact. PVG cover thickness can be produced from approximately 1.5 to 4.5 mm according to the required working conditions.
◆ Low Elongation, Good Flexibility & Troughability: We control longitudinal full-thickness elongation at rated force to ≤4%, helping maintain stable belt length and operating tension during continuous conveying. At the same time, full-thickness elongation at break reaches ≥15% longitudinally and ≥18% transversely, providing sufficient flexibility and deformation capacity for impact absorption and reliable trough formation. The integrated solid woven carcass also supports stable tracking and reduces the risk of conventional inter-ply separation, making the belt suitable for heavy-duty underground conveying and repeated loading conditions.
◆ PVC & PVG Options for Dry, Wet & Inclined Conveying: We provide both PVC and PVG constructions to match different underground operating conditions. PVC belts use PVC covers and are generally suitable for relatively dry and stable conveying routes with inclinations below 16°. PVG belts use a rubber-enhanced cover system that further improves wet grip, abrasion resistance, cover tensile performance, flexibility and low-temperature performance, making them more suitable for wet coal, inclined roadways, repeated loading impact and severe surface wear. PVG belts can generally be applied to conveying inclinations below approximately 20°, while their stronger cover protection also helps extend belt service life under demanding operating conditions.

Solid Woven Conveyor Belt Technical Standards

① TRANSCO PVC/PVG Solid Woven Conveyor Belts are manufactured and verified in accordance with KA/T 914-2019, the current Chinese industry standard for flame-resistant textile carcass conveyor belts used in coal mines. It provides the principal technical and safety requirements for mine conveyor belts and forms the main compliance basis for our PVC/PVG solid woven belts supplied for underground coal conveying applications.
② Underground mining belt construction and performance are verified according to ISO 22721:2023, which specifies requirements for rubber- or plastics-covered conveyor belts of textile construction used in underground mines on flat or troughed idlers. Our PVC/PVG solid woven belt construction, strength grade and finished-belt configuration can be matched to underground conveyor tension, belt width, pulley arrangement and operating requirements in accordance with this standard.
③ Flame-resistant performance is tested according to ISO 340:2022, which evaluates the reaction of a conveyor belt to an ignition flame source under laboratory-scale conditions. This provides standardized verification of the flammability characteristics of our PVC/PVG Solid Woven Conveyor Belts and supports their use in underground and enclosed conveying systems where control of ignition and continued burning is required.
④ Electrical conductivity and anti-static performance are verified according to ISO 284:2025, which specifies the maximum electrical resistance of conveyor belts and the corresponding test method. This verification confirms that our PVC/PVG belts provide sufficient electrical conductivity to help prevent the accumulation of static electrical charge generated during conveyor operation, an important safety requirement for underground mine conveying systems.

Solid Woven Conveyor Belt Construction

Cover Rubber Layers: The top and bottom cover layers form the external working surfaces of our solid woven conveyor belt. The top cover directly contacts coal and other conveyed materials, while the bottom cover protects the carcass and maintains stable contact with drive pulleys, idlers and other conveyor components. For PVC Solid Woven Conveyor Belts, we use PVC-based cover compounds to provide flame-resistant, anti-static and stable surface performance. For PVG Solid Woven Conveyor Belts, we use a rubber-enhanced PVC cover system to provide improved abrasion resistance, impact resistance, wet grip and flexibility for heavier-duty, wet or inclined underground conveying conditions. Solid Woven Carcass: The integrated solid woven carcass is the main load-bearing structure of the belt. We use high-strength, low-elongation longitudinal yarns together with high-strength transverse yarns to form a continuous woven textile structure rather than multiple separately bonded fabric plies. This construction provides high tensile strength, controlled elongation, impact absorption, tear resistance and good troughability while helping reduce the risk of conventional inter-ply separation. During production, the complete woven carcass is impregnated with PVC compound and plasticized, allowing the PVC material to penetrate and surround the internal yarn system. This process helps stabilize the carcass structure and protect the internal textile reinforcement against moisture and contamination.

Solid Woven Conveyor Belt Technical Parameters

Flame-Resistant & Anti-Static Safety Performance

Our PVC/PVG Solid Woven Conveyor Belts are designed for underground coal mine conveying systems where flame resistance, electrical conductivity and friction safety are critical. We control and verify finished-belt safety performance through electrical resistance, drum-friction, alcohol-burner and propane-burner testing according to the applicable mine conveyor belt requirements.

Safety Performance Explanation
The electrical resistance limit of ≤3.0 × 10⁸ Ω helps control static electricity generated during conveyor operation and reduces static accumulation in underground and enclosed conveying environments. The drum-friction test evaluates belt safety under abnormal slipping between the belt and drive pulley; under the specified test conditions, the drum surface temperature is limited to ≤325°C, and the specimen must show no flaming or glowing combustion.
The alcohol-burner test evaluates flame and afterglow behavior after the ignition source is removed, using both complete belt specimens and specimens with the covers removed. The propane-burner test further evaluates resistance to flame propagation along the conveyor belt, requiring a minimum undamaged length of ≥250 mm after testing.

Note: The 325°C value is a drum-friction test limit and does not represent the continuous operating temperature of the conveyor belt.

PVC vs PVG Solid Woven Conveyor Belt

PVC Solid Woven Conveyor Belt
Our PVC Solid Woven Conveyor Belt is designed for underground coal mine and enclosed conveyor systems where flame-resistant, anti-static and stable conveying performance are required. The PVC-impregnated integrated carcass provides a strong, low-elongation belt body without conventional multi-ply separation, making it suitable for continuous coal transportation, development conveyors and other relatively stable underground conveying routes.
We recommend PVC construction when the operating environment is relatively dry, loading impact is moderate and the project requires a reliable, cost-effective flame-resistant solid woven conveyor belt. Belt strength grade, width, cover construction and joint method can be selected according to conveyor tension, route length, pulley configuration and mine safety requirements.

PVG Solid Woven Conveyor Belt
Our PVG Solid Woven Conveyor Belt is developed for more demanding underground mining conditions where moisture, repeated impact, surface wear or higher conveying loads place greater stress on the belt. Its rubber-enhanced cover system works with the PVC-impregnated solid woven carcass to provide improved grip, abrasion resistance and surface durability while maintaining the flame-resistant and anti-static characteristics required for mine conveying.
We recommend PVG construction for wet coal conveying, inclined roadways, main roadway conveyors, trunk conveyors, drift conveyors and high-load transfer sections. It is particularly suitable when a standard PVC belt cannot provide sufficient surface grip or wear resistance, allowing the belt construction to be matched more closely to heavy-duty underground conveying conditions.

Solid Woven Conveyor Belt Applications

Underground Coal Mine Transportation	Development & Extensible Conveyors	Main Roadway, Trunk & Drift Conveyors
Our PVC/PVG Solid Woven Conveyor Belts are widely used for continuous underground coal transportation, including roadway conveyors and coal transfer routes where flame-resistant and anti-static performance is essential. PVC is suitable for relatively stable underground conditions, while PVG is preferred where moisture, impact or surface wear is more severe.	We provide solid woven belts for development and extensible conveyor systems where the conveying route is frequently extended or adjusted as mining progresses. The integrated carcass provides stable performance during repeated installation and length changes, while suitable mechanical or vulcanized joining can be selected according to the conveyor design.	For main roadway, trunk and drift conveyors, we provide higher-strength solid woven constructions for longer conveying distances, higher belt tension and greater material throughput. PVG is particularly suitable for these heavy-duty routes because its reinforced cover system provides improved wear resistance and surface durability under continuous high-load operation.
Inclined Roadway Conveying	Coal Loading & Transfer Sections	Tunnelling & Underground Mineral Handling
Our PVC/PVG belts can be used in inclined underground conveyor systems where belt grip and material stability become more important as the conveying angle increases. PVC is generally suitable for inclinations below approximately 16°, while PVG can be used below approximately 20°, depending on material moisture, particle size, loading method and conveyor design.	At coal loading points, feeder sections and transfer zones, the belt is exposed to repeated impact, concentrated loading and localized abrasion. We can provide PVG construction with a rubber-enhanced cover to improve impact resistance, wear resistance and wet-condition performance in these higher-stress conveyor sections.	Our Solid Woven Conveyor Belts can also be used in tunnelling and underground mineral handling systems where flame resistance, anti-static performance and moisture protection are required. Suitable PVC or PVG constructions can be selected for conveying materials such as potash, salt, trona, gypsum and other mined bulk materials according to the operating conditions.

Rubber Conveyor Belt Shipping And Packing

TRANSCO provides flexible packing and shipping solutions according to the belt type, width, thickness, roll length, total weight and transportation method, helping protect conveyor belts during storage, handling and international shipment.

Packaging Forms
Conveyor belts can be packed in different roll configurations to suit belt dimensions and container loading requirements: ◊Round Roll ◊Double Roll ◊Oval Roll ◊Protective Wrapping	Each belt roll can be securely wrapped to protect the belt during handling and transportation: ◊Waterproof PP woven cloth wrapping ◊Protective plastic film ◊Edge protection ◊High-strength strapping ◊Custom wrapping colors and markings ◊Reel & Support Options	Different support structures can be selected according to belt size, roll weight and unloading conditions: ◊Steel Reel / Steel Core ◊Wooden Drum / Wooden Core ◊Wooden Pallet ◊Steel Pallet ◊Reinforced Steel Frame
Secure Container Loading	Customized Packing	Packing Recommendation
Heavy or large conveyor belt rolls can be securely positioned and reinforced inside the container to reduce unwanted movement during transportation. Roll dimensions, gross weight and packing information can be clearly marked to support safe lifting and unloading.	Packing methods can be customized for sea freight, container transport and project deliveries. Special steel-reel or reinforced-frame packing is available for large, heavy or long-length conveyor belt rolls.	Our team recommends the appropriate roll form, wrapping material, reel structure and loading method according to each conveyor belt specification and destination, balancing product protection, handling efficiency and shipping space.