Purpose
🏭 Mainly used in metallurgy and construction industries to transport high-temperature materials such as sintered ore, coke, and cement clinker. Material temperature should not exceed 800 ℃, and the surface temperature should not exceed 220 ℃.
Cover Layer & Core: The cover layer is made of EPDM rubber, and the skeleton material is made of domestically used high-temperature resistant canvas. The unique formula design solves the key problems of high saturation, poor adhesion, and low interlayer adhesion of EPDM rubber.
- Light weight design for ease of installation and use
- Long lifespan — approximately 2–4 times that of conventional belts
- Excellent heat resistance for demanding high-temperature environments
📋 Standard: Implements "General purpose fabric core conveyor belts with rubber or plastic covering", adopting the international standard draft ISO/FDIS14890-1999.
A heat-resistant conveyor belt is made of multiple layers of rubber cotton canvas (polyester cotton cloth) or polyester canvas covered with high-temperature resistant rubber, bonded together by high-temperature vulcanization — suitable for transporting hot coke, cement, slag, and hot castings below 175 ℃.
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Specifications are the same as ordinary conveyor belts. The product complies with HG2297-92 standard.
🔥 Heat Resistant Conveyor Belt — 4 Type Classifications:
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Type I (T1): Max test temperature 100 ℃ · Max short-term operating temperature 150 ℃
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Type II (T2): Max test temperature 125 ℃ · Max short-term operating temperature 170 ℃
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Type III (T3): Max test temperature 150 ℃ · Max short-term operating temperature 200 ℃
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Type IV (T4): Max test temperature 175 ℃ · Max short-term operating temperature 250 ℃
Physical Properties
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Strength Aging Difference (IRHD): 23
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Maximum value after aging (IRHD): 88
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Decreased rate of change in tensile strength: 40%
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Lowest tensile value after aging: 5 MPa
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Change rate of tensile strength: 60%
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Minimum elongation value after aging: 150%
🕸️ High Temperature Resistant Steel Mesh Conveyor Belt: Made of steel wires woven vertically and horizontally. The surface is galvanized or copper plated, with a rubber layer on the lower surface. During transportation of high-temperature materials, the overall surface does not peel off — offering more reliable performance than layered heat-resistant conveyor belts.
A heat-resistant conveyor belt is made of multiple layers of rubber cotton canvas (polyester cotton cloth) covered with high-temperature resistant rubber, bonded together by high-temperature vulcanization — suitable for transporting hot coke, cement, slag, and hot castings below 240 ℃.
📌
Specifications are the same as ordinary conveyor belts. Complies with HG2297-92 and GB/T20021-2005 standards.
🔥 Heat Resistant Conveyor Belt — 5 Type Classifications:
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Type I (T1): Max test temperature 100 ℃ · Max short-term operating temperature 150 ℃
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Type II (T2): Max test temperature 125 ℃ · Max short-term operating temperature 170 ℃
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Type III (T3): Max test temperature 150 ℃ · Max short-term operating temperature 200 ℃
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Type IV (T4): Max test temperature 175 ℃ · Max short-term operating temperature 400 ℃
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Type V (T5): Max test temperature 240 ℃ · Max short-term operating temperature 600 ℃
Key Features
This conveyor belt is mainly used in metallurgy, building materials, casting, coking, and chemical engineering industries to transport high-temperature solid materials such as sintered ore, coke, cement, and fertilizers, with specified heat resistance performance.
🧪 Core Materials: Rubbers with good heat resistance such as styrene butadiene rubber, butyl rubber, and ethylene propylene rubber are used as the main rubber material. Polyester cotton and polyester canvas with heat resistance and low heat shrinkage are used as the belt core.
🔥 Heat Resistance Grade Classification (by test temperature):
- T1: Withstands test temperature not exceeding 100 ℃
- T2: Withstands test temperature not exceeding 125 ℃
- T3: Withstands test temperature not exceeding 150 ℃
- T4: Withstands test temperature not exceeding 175 ℃
📐 Marking Example: 200 1200 EP 5 1000 8+3 T2 — Length: 200m · Width: 1200mm · Core: EP canvas (5 layers) · Strength: 1000 N/mm · Cover thickness: 8mm (upper) + 3mm (lower) · Max test temperature: 125 ℃.
Complies with national standard GB/T 20021-2005 "Canvas Heat-resistant Conveyor Belt".
🛡️ To meet higher operating temperatures, some manufacturers have developed heat-resistant belts capable of withstanding higher temperature levels and anti-burning. Generally, flame retardant insulation agents, anti-ablation agents, and thermal conductivity agents are added to the cover layer rubber to improve high-temperature and anti-ablation properties.
Frequently Asked Questions
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What is the maximum material temperature a heat-resistant conveyor belt can handle?
The material temperature for standard heat-resistant conveyor belts should not exceed 800 ℃, while the surface temperature of the belt itself should not exceed 220 ℃. For extended high-temperature applications, Type V (T5) belts can support short-term operating temperatures up to 600 ℃.
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What materials are used in the cover layer and core of a heat-resistant conveyor belt?
The cover layer is typically made from EPDM rubber, styrene butadiene rubber, butyl rubber, or ethylene propylene rubber for excellent heat resistance. The belt core uses polyester cotton canvas or polyester canvas designed for heat resistance and minimal heat shrinkage.
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What are the different types (grades) of heat-resistant conveyor belts?
Heat-resistant conveyor belts are classified into up to five grades: T1 (max 100 ℃ test / 150 ℃ short-term), T2 (125 ℃ / 170 ℃), T3 (150 ℃ / 200 ℃), T4 (175 ℃ / 400 ℃), and T5 (240 ℃ / 600 ℃). Selection depends on the specific operating temperature requirements of your application.
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Which industries commonly use heat-resistant conveyor belts?
Heat-resistant conveyor belts are widely used in metallurgy, building materials, casting, coking, chemical engineering, and construction industries. They are specifically designed for transporting high-temperature materials such as sintered ore, coke, cement clinker, slag, fertilizers, and hot castings.
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What quality standards do heat-resistant conveyor belts comply with?
Heat-resistant conveyor belts comply with multiple standards including HG2297-92, GB/T20021-2005 ("Canvas Heat-resistant Conveyor Belt"), and the international standard draft ISO/FDIS14890-1999 for general purpose fabric core conveyor belts with rubber or plastic covering.
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What is the advantage of a steel mesh heat-resistant conveyor belt over a layered belt?
The high-temperature resistant steel mesh conveyor belt is constructed from vertically and horizontally woven steel wires, with a galvanized or copper-plated surface and a rubber under-layer. During transportation of high-temperature materials, the overall surface does not peel off, making it more reliable and durable than conventional layered heat-resistant conveyor belts.
Boao Rubber
