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In the transmission system of the glass tempering furnace, the drive belt is one of the core components, which directly affects the stability of equipment operation, production efficiency and the quality of finished products. At present, the mainstream types of drive belts is polyurethane (PU) round belts and power twist link V belts. This article will conduct a comparative analysis of the two belts from aspects of structural design, material properties, performance and applicable scenarios, offering a selection reference for customers.
Structural and Material Differences
Urethane round belt: Round belt used for tempered furnace is generally designed in a seamless or endless ring shape, with a circular cross-section (O-shaped). The main material is polyurethane (PU), and some round belt with reinforced nylon or steel cores to enhance tensile strength. PU has features of high flexibility, wear resistance and chemical corrosion resistance, but it can’t withstand high-temperature (operation temperature range -20℃ to 80℃), and it is prone to aging and cracking when exposed to high loads or high-temperature environments for a long time.
Power twist link V belt: Power twist V belt is composed of a series of interlocking links made from high-performance polyurethane and polyester composite materials. These links are twisted and connected together, forming a continuous belt. Each link is shaped to match the V-profile of the pulley. And its design allows for easy installation and customization. Power twist link V belt can be easily assembled or disassembled to adjust length by adding or removing links.
Performance Comparison
Transmission synchronization and stability
Polycord round belt: Transmission by the friction force of the pulley, which is prone to inaccurate transmission ratios due to elastic sliding. Especially when the load changes, slippage may occur, causing the roller conveyor to be out of synchronization, which may lead to scratches on the glass surface or positional deviations.
Power twist link belt: Power twist link belt transmits power through frictional contact between the belt and the V-grooved pulley. The belt sits tightly in the pulley groove, and as the drive pulley rotates, it pulls the belt, transferring motion to the driven pulley.
Service life and maintenance cost
Urethane round belt: The average service life is relatively short (about 6 to 12 months), and it needs to be replaced as a whole with a long downtime. Moreover, frequent overload and slippage may accelerate wear and tear and increase the cost of spare parts.
Power twist link V belt: It has stronger wear resistance and a service life that can reach 2 to 3 times that of urethane round belt. The structure design supports partial replacement, making maintenance convenient and reducing downtime by more than 50%.
Application situations and load capacity
PU round belt: It is suitable for low-power and short-distance transmission scenarios (such as small tempering furnaces or auxiliary transmission positions). Its advantages lie in simple installation, low cost and the ability to buffer mechanical shock through elasticity.
Power twist link belting: It is ideal for production lines with high load and long-term operation, especially in the main drive position of large tempering furnaces. Its high-precision synchronization and anti-fracture ability can ensure the stability of continuous production.
Advantages And Disadvantages
| PU round belt | Power twist link belt | |
| Material | High elastic polyurethane | Thermoplastic polyurethane |
| Durability | Easy to aging and break | Excellent, wear and impact resistant |
| Stability | Little vibration and runs smoothly when operating at high speed | Good stability at medium and high speeds |
| Length adjustment | Inconvenient. It needs to be cut and then re-welded | It is extremely convenient and can be lengthened or shortened on site |
| Transmission accuracy | Relatively low and susceptible to elastic sliding | High |
| Maintenance cost | High cost for the whole replacement | Partial replacement has a low overall cost |
| Application | Small and medium-sized equipment, low-load environment | Large-scale equipment, high-precision and high-load scenarios |
Your Drive Belt Manufacturer for Glass Tempered Furnace
Driving the Future of Glass–High-Performance Belts for Tempering Furnaces! Puteken supplies urethane round belt in various specifications and durable power twist link V belt for glass tempered furnace.
