High-efficiency components and systems optimized for extreme environments, steep incline bulk transport, and industrial handling.
Dongguan Trakkx Tech Co., Ltd. is a professional China conveyor belt manufacturer specializing in industrial material handling and conveying solutions for a wide range of industries worldwide. With years of experience in conveyor technology, we provide reliable, efficient, and customized conveyor systems that help businesses optimize production processes, improve workflow efficiency, and reduce operational costs.
Modern industrial processing plants, massive underground mining facilities, and metropolitan infrastructure tunneling projects run into a shared structural bottleneck: spatial footprints. Conventional belt conveyors, governed by strict friction limits, cannot reliably elevate bulk materials at angles exceeding 15° to 18° without massive rollback risks. The classic solution is a large, sweeping helical layout that consumes extensive square footage and spikes capital expenditures.
Our engineered **Sandwich Belt Conveyor Systems** resolve this. By employing a dual-belt configuration that applies gentle, persistent "hugging" pressure over the conveyed material, sandwich conveyors safely elevate everything from coarse crushed stone and minerals to dry sludge and agricultural products at angles of 45°, 60°, and even vertical 90° lines, keeping the material fully sealed and secure.
Our product portfolio includes conveyor belts, belt conveyor systems, modular conveyors, roller conveyors, inclined conveyors, assembly line conveyors, packaging conveyors, and customized material handling equipment. Designed to meet the demanding requirements of modern manufacturing environments, our solutions are widely used in logistics, food processing, electronics, automotive, warehousing, packaging, pharmaceuticals, and industrial production facilities.
Understanding the physics behind sandwich belt technology is critical for bulk materials engineers seeking long-term operational resilience. The core design involves a "sandwich" where two distinct rubber belts—a carrying belt and a covering belt—run in tandem. The material is fed onto the carrying belt, and then the cover belt is introduced. Radial pressure, exerted by spring-loaded or weighted press rollers, locks the material in place.
Unlike fixed pocket or sidewall cleated belts, the continuous flex of a dual-belt sandwich system adapts dynamically to changing aggregate sizes. This mitigates point stresses and avoids belt tearing under localized high pressure.
By enclosing bulk materials firmly between two elastomeric barriers, sandwich conveyors eliminate rollback hazard zones, enhancing safety on steep Inclines.
Environmental regulations demand dust suppression. The sealed sandwich construction acts as a dust containment barrier, eliminating open particulate release.
At Trakkx Tech, we combine engineering expertise with advanced manufacturing capabilities to deliver high-performance conveying systems tailored to specific customer applications. Our experienced technical team works closely with clients throughout the entire process, from project consultation and system design to prototyping, production, installation support, and after-sales service.
Dongguan is globally recognized as an advanced manufacturing center. Leveraging the comprehensive regional supply chain ecosystem, Dongguan Trakkx Tech Co., Ltd. integrates raw materials sourcing, high-precision structural steel fabrication, high-grade vulcanized rubber processing, and automated control assemblies all within a tightly integrated supply loop.
This localized supply chain cluster yields distinct advantages for global procurement departments:
Our manufacturing facility is equipped with modern production equipment and strict quality control systems to ensure durability, reliability, and consistent performance. Every conveyor solution undergoes comprehensive testing and inspection before delivery, helping customers achieve smooth and uninterrupted material handling operations.
Operating a high-capacity bulk material system requires rigorous adherence to local regulations. Our sandwich belts and structural components are engineered to comply with regional and international standards:
Full CE certification ensures compliance for European markets, covering emergency stops, guard configurations, structural load paths, and low-voltage electrical controls.
For underground coal mines and risky environments, we provide specialized fire-resistant compounds that comply with MSHA (Mine Safety and Health Administration) and DIN 22109 standards.
All load-bearing structures, idler arrays, and tension controls are calculated based on the Conveyor Equipment Manufacturers Association (CEMA) guidelines to guarantee reliable operation.
To bridge the geographical gap, Trakkx Tech maintains a network of technical field consultants and local engineering partners in North America, Europe, and Australia. We offer detailed 3D CAD modeling, custom FEA (Finite Element Analysis) stress simulations, and remote or on-site supervision during installation. By shipping modular assemblies that feature match-marked configurations, we make field installation quick and simple, minimizing downtime.
In addition to standard products, Dongguan Trakkx Tech Co., Ltd. offers flexible OEM and ODM services for global distributors, system integrators, equipment manufacturers, and industrial brands. We are committed to providing innovative conveying solutions that adapt to evolving industry needs and support long-term business growth.
The versatility of sandwich belt configurations is proven across critical industries worldwide. The following application scenarios demonstrate how our systems solve severe incline challenges:
Vertical shaft transport of copper ore and run-of-mine coal. Our sandwich conveyors eliminate multiple hoisting cycles by elevating materials directly to surface processing units, reducing operational costs.
In highly congested urban environments, tunneling muck must be extracted vertically from shaft floors. Our compact sandwich conveyor configurations require minimal pit space compared to conventional options.
Rapid vertical conveyance of grain, salt, or fertilizers from ship holds to elevated storage silos. The sealed belt-on-belt structure protects high-value materials from wind loss and rain.
Serving customers across North America, Europe, Southeast Asia, the Middle East, and other international markets, Trakkx Tech has established a reputation for quality, efficiency, and customer-focused service. Our mission is to become a trusted global partner for advanced conveyor belt systems and intelligent material handling solutions.
As industrial systems become more integrated and automated, sandwich conveyor design is evolving with several new technologies:
Modern sandwich systems integrate load sensors with variable frequency drives (VFDs). Real-time belt tension monitoring adjusts the sandwich hugger pressure dynamically, saving energy and extending belt life.
Next-generation rubber covers resist thermal degradation and structural fatigue, maintaining elasticity and flexibility across extreme temperature fluctuations (from -40°C to +150°C).
Embedded steel cord sensors monitor inner steel cable conditions, predicting failure risks before damage occurs and preventing costly operational downtime.
Below is a visual inspection of Trakkx Tech's advanced production floor, test installations, and assembly components. These facilities enable our engineering team to design, manufacture, and verify heavy-duty conveyor systems.
Find answers to common technical and operational questions regarding sandwich high-angle conveying systems.
A pocket or cleated belt uses molded rubber walls and horizontal cleats to cup material, which are prone to damage and difficult to clean. A sandwich belt utilizes two smooth belts running face-to-face, using radial hugging pressure to hold material. This allows for higher operating speeds, easier scraper cleaning, and a longer overall service life.
Yes. Our sandwich belt systems can be designed with high-abrasion resistant covers (such as DIN W or X standards). The continuous wrapping pressure prevents shifting between the material and the belt, which minimizes abrasive wear during incline transit.
We require the material density, maximum lump size, volumetric capacity target (t/h), total elevation height change, target incline angle, and environmental conditions (moisture, temperature, dust constraints).
We provide detailed splicing instructions, structural alignment blueprints, and commissioning checklists. For large projects, our field technicians can travel to your location to supervise the installation, alignment, and initial load testing.
Explore our range of heavy-duty steel cord belts, replacement rollers, and specialized sorting systems manufactured to meet international standards.
Trakkx Tech
