Hebei Xinnuo Roll Forming Machinery Co., Ltd. has focused on independent research, development, customized design and professional manufacturing of various cold roll forming machinery and metal sheet processing equipment for more than a decade. Supported by a complete production workshop, advanced processing equipment and a professional technical R&D team with rich industry experience, our factory keeps upgrading product craftsmanship and optimizing structural performance year after year. This fully automatic trapezoidal roof sheet roll former stands out as our best-selling star export model, carefully engineered for stable, uninterrupted mass production of multiple metal roofing materials including color coated steel sheets, hot-dip galvanized steel plates, and lightweight aluminum-magnesium-manganese alloy panels. The finished trapezoidal metal roof tiles produced by this machine possess excellent weather resistance, corrosion resistance and structural bearing capacity, so the equipment is widely applied in roof enclosure and wall cladding projects for large industrial workshops, logistics storage warehouses, large-span steel structure exhibition halls, livestock breeding farms, agricultural greenhouses, solar photovoltaic canopy buildings and commercial market construction projects all over the world.
The whole machine base frame is integrally welded with extra thickened high-strength H-section steel, and the welded frame will go through integral high-temperature stress relief annealing treatment after welding. This mature processing technology thoroughly removes internal welding stress, effectively prevents long-term frame deformation under heavy load, and guarantees low-vibration, smooth and stable high-speed operation during all-day continuous production without obvious shaking or displacement. All core forming rollers are precisely lathed and polished from solid 45# medium carbon steel, and their outer working surfaces are treated with thick hard chrome plating to strengthen surface hardness, wear resistance and anti-rust ability. Equipped with 18 groups of precision gradual forming stations arranged in scientific gradient layout, the equipment realizes gentle step-by-step bending and shaping of raw metal strips. It ensures ultra-smooth sheet feeding progress, generates neat, consistent and beautiful corrugated profiles, and avoids common defects such as surface scratches, plate torsion, uneven wave height and edge warping on finished roof sheets. The finished trapezoidal panels are designed with precise overlapping buckles, which can form tight seamless joints during on-site installation and greatly enhance the overall waterproof, rainproof and leak-proof performance of building roofs, reducing later maintenance costs for end customers.
The power transmission system adopts a reliable dual synchronous heavy-duty chain drive structure. Compared with single-chain transmission schemes used by many small manufacturers, this dual-chain design greatly reduces internal transmission clearance, improves load-bearing limit and synchronization accuracy between the upper and lower roller groups. The machine can maintain steady running status even under long-hour non-stop heavy-load production without chain jumping, slipping or asynchronous forming problems. The rear hydraulic cutting unit is assembled with an integrated thickened cast tool holder and sharp cemented carbide cutting blades with long service life. When cutting finished panels to fixed lengths, it can produce flat, tidy cutting cross-sections without metal burrs, edge curling or plate deformation. The system supports customized fixed-length automatic cutting according to customers’ actual construction demands, and the finished length dimensional tolerance is strictly controlled within ±1 millimeter to meet high-precision engineering standards.
Xinnuo provides a comprehensive 2-year full machine warranty for all exported trapezoidal roof sheet roll forming machines. Before every finished equipment leaves our factory, it must pass strict 72-hour continuous no-load test running and real metal strip load test running to inspect every moving component, electrical circuit and hydraulic system for potential hidden faults. A complete supporting package will be delivered together with the main machine, including a full set of easily damaged spare parts, detailed mechanical assembly drawings, electrical wiring diagrams and Chinese-English bilingual operation & maintenance manuals. Our global professional after-sales service team can arrange overseas engineers to provide door-to-door equipment installation, on-site commissioning and one-on-one technical training services according to clients’ project schedules. Up to now, this trapezoidal roof panel forming machine has been exported to more than 30 countries and regions covering Southeast Asia, Middle East, Africa, South America and Eastern Europe, and has won consistent high recognition and positive feedback from numerous overseas building material processing manufacturers, metal tile factories and construction engineering suppliers.
