As part of QBF rubber’s commitment to full lifecycle service for sidewall conveyor belts, the company recently organized a specialized hands-on training session on ST3150 B1500 steel cord sidewall conveyor belt jointing technology at its manufacturing base. The training was conducted using actual products from a Japanese power plant project, focusing on the critical jointing techniques under the “rope-free zone” design.
The training was led by a senior after-sales technical manager with over 10 years of field installation and jointing experience. The curriculum covered the complete jointing process for ST3150-grade sidewall belts, including steel cord preparation, stepped overlap layering, and vulcanization process control. Training samples were taken from the same production batch as the Japanese power plant order, strictly adhering to Japanese acceptance standards, ensuring every technical detail meets international client expectations.
Joint quality is decisive for conveyor belt service life and operational safety. For sidewall belts, jointing involves not only high tensile strength but also sidewall sealing and operational stability—making the process considerably more complex than standard conveyor belt jointing. The hands-on session emphasized “rope-free zone” operating procedures, achieving joint strength above 85% of the original belt while effectively preventing stress concentration and material leakage risks.
QBF rubber’s after-sales service team has years of expertise in conveyor belt installation and jointing, with particular strength in large-lift-height, large-specification sidewall belts, as well as confined-space and challenging site conditions. Our technical core comprises professionals with over a decade of field experience, proficient in developing customized jointing solutions and troubleshooting across diverse operating environments. QBF rubber has established a rapid-response service network covering key industrial regions globally, implementing standardized quality management from site survey and solution design through to construction and final acceptance, ensuring every service delivery is precise and efficient.
From new belt installation to scheduled maintenance, from emergency repairs to belt replacement, QBF rubber upholds the service philosophy of “One Joint, Lifetime Protection,” combining technical expertise with rapid response to minimize customer downtime and extend equipment service life.
Looking ahead, QBF rubber will continue to deliver superior workmanship and comprehensive conveyor belt lifecycle services, providing high-quality product delivery and on-site installation/maintenance solutions for customers worldwide.
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The biggest weakness of traditional sidewall belts? The splice. Splices are not only the weakest point in terms of strength, but also lead to joint shock, material leakage, jamming, and shorter service life.
Today, we are sharing with you the QBF Truly Endless Belting Production Line – a dedicated production line that solves splice problems at the source.
Core Equipment
Single-Strip Winding Machine
This machine spirally winds a continuous fabric strip around the mold, ensuring a truly endless belt with no splice, eliminating tension loss caused by joints.
Integrated Vulcanization Press
The base belt and sidewall are vulcanized together in one step, eliminating the risk of delamination that comes with post-production bonding.
Custom Molds
Using European standard molds for sidewall production to achieve optimal material discharge efficiency and lower running resistance.
Production Specifications
Length:2-30m
Thickness:≥8mm
Belt width: ≤1500 mm(customizable)
Sidewall height: Customizable
Material Options：Heat resistant, cold resistant, oil resistant, acid/alkali resistant, flame retardant, etc.
Production Capacity
While focusing on high quality, our production scale ensures competitive lead times for both standard and custom orders.
Production Mode: High precision, made-to-order
Customization Response: Standardized process, short delivery time, supporting non-standard customization
Quality Assurance: Every endless belt on the production line undergoes strict testing for thickness uniformity and tension distribution, ensuring compliance with ISO and long-term European operating standards.
Key Advantages – Why “No Splice” Matters
No weak point – Zero strength loss at the splice. Every inch is as strong as the next.
No joint shock – Smooth operation keeps belt scales and weigh feeders accurate.
No leakage – One-piece molded structure (no post-bonded parts) prevents fine materials from escaping through gaps.
Longer life – Even stress distribution reduces fatigue cracking.
Field data: 30%-50% longer life than spliced belts
Conclusion
The QBF Truly Endless Belting Production Line replaces the traditional “cut and splice” method with a truly seamless winding and vulcanization process, delivering a conveyor belt that is stronger, more durable, and runs more accurately.
If you are struggling with frequent belt breaks at the splice, or if your weighing system suffers from low accuracy due to joint harmonics, it is time to switch to the truly endless belting standard.
Contact QBF Rubber today to discuss your specific length and width requirements for a custom truly endless sidewall belt solution.
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QBF rubber’s after-sales service team recently traveled to Russia to conduct specialized inspections and preventive maintenance for steep-angle sidewall conveyor belt systems at major steel plants. This initiative reflects QBF rubber’s strategic shift from product export to service export, upgrading our overseas service model from reactive repair to proactive, preventive maintenance.
Under harsh steelmaking conditions, steep-angle sidewall conveyor belts are vital for raw material handling, and their reliability directly affects production uptime. Our senior engineers performed comprehensive checks on belt rigidity, splice strength, skirt board integrity, cleat wear, cover thickness, pulley lagging, idler resistance, take-up devices, and other conveyor components.
With years of experience in bulk material conveying for the steel industry, QBF rubber provides sidewall conveyor belt solutions for leading steel producers worldwide, covering high-temperature sinter, coke, pellets, and more. Our products have repeatedly proven their ability to replace top European brands in demanding metallurgical applications. In 2024, QBF rubber supplied the sidewall belt for China Baowu Steel’s Zhanjiang project—a 115-meter vertical lift hydrogen-based furnace system, setting a new industry benchmark.
Using QBF rubber’s proprietary “health record” system for each conveyor, our team analyzed operational data and delivered customized preventive maintenance plans. Through wear trend analysis and critical component life prediction, we helped identify potential faults early, reduce unplanned downtime, and extend conveyor belt service life.
“Our goal is more than a high-quality belt—it’s full lifecycle service, from system diagnosis and installation support to routine maintenance,” said a QBF rubber service representative. QBF rubber has established service points in key overseas markets to ensure fast, localized support, keeping “Made in China” solutions reliable and durable worldwide.
This successful Russian inspection further demonstrates QBF rubber’s commitment to full lifecycle service—from installation guidance and commissioning, to periodic inspections and preventive maintenance, to upgrade recommendations. Going forward, QBF rubber will continue its “product + service” dual-driven strategy, delivering reliable steep-angle conveying solutions and professional support to steel enterprises globally.
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