QBF rubber cold resistant conveyor belt ensures stable material handling in extreme cold conditions.
Anyone using standard belts at freezing job sites knows the common issues: rubber turns rigid, cracks and loses elasticity in low temperatures. These defects cause unplanned downtime, higher repair costs and potential safety hazards.
Our custom cold resistant cover rubber solves these on site problems. The specialized compound retains flexibility, tensile strength and wear resistance in deep freeze. It is a key conveying component for facilities operating in persistent cold environments.
We do not just use general purpose rubber with minor adjustments. Every cold resistant belt comes from specially formulated rubber compounds mixed in house.
Many suppliers simply lower rubber hardness and call their belts “cold resistant”. Those cheap alternatives turn brittle after several weeks in continuous sub zero conditions. Our formula keeps stable performance through repeated freeze thaw cycles, which is very common for outdoor mines and ports.
Meets industry standard HG/T 3647 2014
| Parameters | Grade H | Grade D | Grade L |
| Tensile Strength (Mpa) | 24 | 18 | 15 |
| Elongation at Break (%) | 450 | 400 | 350 |
| Aging Test (70℃, 7d) Change of Tensile Strength % | ±25 | ±25 | ±25 |
| Aging Test (70℃, 7d) Change of Elongation at Break % | ±25 | ±25 | ±25 |
| Abrasion Loss mm³ | 120 | 100 | 200 |
| Tensile Cold resistant Coefficient mm³ C1 (-45℃) | 0.3 | ||
| Tensile Cold resistant Coefficient mm³ C2 (-50℃) | 0.2 | ||
| Change of Tensile Strength % C1 (-45℃) | ±20 | ||
| Change of Tensile Strength % C2 (-50℃) | ±25 | ||
| Change of Elongation at Break % C1 (-45℃) | ±20 | ||
| Change of Elongation at Break % C2 (-50℃) | ±30 | ||
Think over these points before sending your inquiry:
Tip: Wind chill effect matters! If your location has strong cold wind, we suggest upgrading to one grade colder for longer service life.
Belt service life heavily depends on loading weight, material sharpness, impact force and actual minimum operating temperature.
When operated within our designed temperature range and with correct installation & maintenance:
Running the belt below its rated minimum temperature will drastically shorten service life and cause unexpected cracking damage.
Q1: What belt carcass types pair up with this cold resistant rubber cover?
A: Our cold resistant covers work with many carcass constructions: textile reinforced Multitrans, Sempercord, steel cord Metalcord and Metaltrans, Autostable and rip stop tear resistant belts. Send over your required belt strength, and we can put together a proper suggestion.
Q2: Which industries order cold resistant conveyor belts most often?
A: Buyers mainly come from open pit mines, high latitude port terminals, power plants, rock quarries and mineral processing facilities in cold climate zones.
Q3: Does wind chill affect cold resistant conveyor belt performance?
A: Yes. Wind chill drops the real surface temperature of belt far below the air thermometer reading. For windy cold exposed sites, we often recommend C2 grade even if local recorded low temperature is only 42℃.
Q4: Can cold resistant belts work in hot summer weather as well?
A: Yes. Both C1 and C2 grades work fine up to +45℃. They handle big seasonal temperature swings, which is perfect for locations with freezing winter and hot summer.
Q5: What test methods do you use for cold resistance performance?
A: Our lab runs tensile cold resistant coefficient test following HG/T 3647 2014 standard for every batch. Test reports can be provided for tender or project review.
1.Keep belt surface clean from ice and snow build up. Thick ice will increase load and accelerate rubber fatigue.
2.Check cover rubber surface regularly for tiny cracks during cold seasons. Early inspection avoids sudden belt tearing.
3.Adjust pulley and roller alignment correctly. Misalignment creates extra stress and speeds up cracking under cold conditions.
4.Do not apply harsh chemical solvents onto cold resistant rubber cover. Solvents will destroy low temperature rubber performance.
Sep 18, 2026
Sep 18, 2026
Sep 17, 2026