Name: China Cheap Cold Resistant Conveyor Belt Manufacturers Suppliers - Customized Service - YiQi Trading
Brand: YiQi
SKU: 267991373

Description

Technical Parameters

Product Description

Cold climates create one of the toughest operating conditions for conveyor systems. When temperatures fall below freezing, the rubber in standard conveyor belts becomes stiff, brittle, and prone to cracking. These changes affect the belt's ability to wrap around pulleys, maintain trough shape, and absorb impact. For industries operating in winter seasons, high‑latitude regions, or temperature‑controlled environments, these failures lead to productivity loss, safety risks, and higher maintenance costs.

The YIQI Cold Resistant Conveyor Belt is engineered with a specialized NR/BR low‑temperature rubber compound and a reinforced carcass that maintain flexibility, durability, and bond strength at temperatures as low as –40°C and –60°C. Unlike general‑purpose belts, this model is built for real cold‑weather operation, providing consistent conveying performance under snow, frost, and sudden temperature drops.

Why Low‑Temperature Performance Matters

When rubber molecules lose mobility, stiffness increases sharply. Below –10°C, many general belts begin to harden; below –20°C, cracking and delamination become common. In real operations, several problems occur:

• Reduced pulley wrap, causing belt slippage

• Surface cracking near splices and belt edges

• Delamination from uneven thermal contraction

• Poor troughability, leading to material spillage

• Sudden breakage when frozen lumps strike the belt

The YIQI cold‑resistant belt avoids these failures by preserving elasticity, tensile strength, and adhesion at low temperatures, ensuring stable operation in harsh winter environments.

Engineering Design of the Cold‑Resistant Belt

3.1 Low‑Temperature Rubber Compound

The belt uses a carefully balanced NR/BR blend. Natural rubber contributes strength and tear resistance, while butadiene rubber adds excellent flexibility under cold conditions. The compound is tested in a low‑temperature chamber to monitor bending behavior, crack resistance, and rebound elasticity at –40°C and –60°C.

3.2 Reinforced Carcass Structure

The carcass may be configured using EP, Nylon (NN), or cotton fabric, depending on application needs:

• EP: Low elongation, suitable for long conveyors

• Nylon: Higher impact resistance, suitable for frozen lumps

• Cotton: Stable in temperature cycling environments

3.3 Low‑Temperature Adhesive System

The adhesive layer between plies uses a modified bonding formula that prevents embrittlement or delamination caused by thermal contraction.

Cover Rubber Properties

Type	Tensile Strength	Elongation @Break	Abrasion Loss	Cold Resistant Coefficient of Elongation
Type	MPa	%	mm³	C1 (-45℃)	C2 (-50℃)
Normal Condition	≥15.0	≥350	≤200	≥0.3	≥0.2
Heavy Abrasive Condition	≥18.0	≥400	≤100	≥0.3	≥0.2
Heavy Tearing Condition	≥24.0	≥450	≤120	≥0.3	≥0.2
NOTE: Cold resistance consists of two types: C1 and C2. C1 Temperature range -45~+50℃ C2 Temperature range -60~+50℃

Application Scenarios

The cold‑resistant belt is widely used in environments where temperatures stay below freezing for extended periods or where year‑round operation is required regardless of weather. Common industries include:

• Mining operations in northern regions

• Arctic and northern ports exposed to snow and ice

• Power plants and steel mills with outdoor conveyors

• Cement and chemical plants in cold climates

• Cold‑storage warehouses handling frozen goods

These sites demand belts that can tolerate sudden overnight freezing, heavy impact from frozen lumps, and continuous startup cycles during winter.

Production Process of Cold Resistant Conveyor Belt

01/

Material Selection
The first step involves selecting high-quality raw materials. For cold-resistant belts, special rubber compounds are used that remain flexible in low temperatures and resist cracking or hardening.

02/

Rubber Mixing

The selected raw materials are mixed in a high-temperature mixer to ensure a consistent rubber compound. The ingredients include natural and synthetic rubber, along with various additives to enhance cold resistance and durability.

03/

Calendering

The mixed rubber compound is passed through a series of rollers (calendering process) to create a uniform rubber sheet that will form the cover material of the conveyor belt. The thickness of the rubber layer is precisely controlled during this step.

04/

Textile/Steel Cord Reinforcement

The belt's core is then reinforced with fabric layers (for light-duty applications) or steel cords (for heavy-duty applications). This step gives the belt the strength to handle the load and prevents stretching.

05/

Curing/Pressing
The rubber-coated fabric or steel cord is then placed in a curing press, where it is heated and pressed to bond the rubber with the reinforcement. This vulcanization process gives the belt its final shape and enhances its mechanical properties.

06/

Final Inspection and Testing
After curing, the belt undergoes rigorous quality control checks. Testing includes checking for dimensional accuracy, tensile strength, and resistance to cold temperatures. The belt is then subjected to freezing conditions to ensure that it performs as expected in low-temperature environments.

07/

Cutting and Packaging
Once the belt has passed the final inspection, it is cut to the required lengths and packaged for delivery. Custom sizes and lengths are available to meet specific customer needs.