High Flatness Automatic Trapezoidal Roll Forming Machine with 820 mm Effective Width for Trapezoidal Sheet Forming Machine Production

Manufactured by Dongguang Hengfu Roll Forming Machine Co., Ltd.

The YX21-164-820 roll forming production line is a popular high-speed automatic trapezoidal roof panel machine well received by metal-sheet processors worldwide. It realizes full-process automatic production — from coil decoiling, material guiding, roll forming and fixed-length shearing through to finished panel discharging — turning raw color-coated steel coils into standard YX21-164-820 roof panels in a single continuous run.

Developed by Dongguang Hengfu Roll Forming Machine Co., Ltd., this machine adopts a reliable gear transmission design, an upgrade over conventional chain-driven models. It is purpose-built for real-world factory mass-production scenarios, focusing on high running speed, stable profile quality, easy daily operation and low long-term operating costs. It is a solid production asset for building-material manufacturers, steel-structure plants and metal-processing workshops.

Built around a heavy-duty 350H steel welded wall-type frame, the machine features thick carbon-steel wall plates, a solid main shaft and 18 forming stations, delivering remarkable overall rigidity. During continuous heavy-load operation, the unit stays stable without frame deformation or shifting forming tolerance.

Forming rollers are fully precision-machined, tempered and electroplated. Superior hardness and wear resistance greatly prolong the service life of core components. Compared with chain transmission, gear transmission offers smoother power delivery, less vibration during high-speed operation and more uniform panel forming results.

Both the forming host and the shearing unit are equipped with high-performance servo motors, supporting flexible high-speed operation. The double linear-guide servo electric shear works steadily, generating burr-free clean cuts without secondary trimming. It features a low failure rate and reduces daily maintenance workload.

A high-precision length measuring assembly ensures excellent dimensional repeatability. Every finished roof panel keeps a consistent profile and precise length, ensuring tight overlap during installation and lowering the risk of roof leakage. Equipped with a warning alarm light, the machine gives timely production reminders and simplifies on-site workshop management.

The machine is fitted with a split-type PLC touch screen control system. Operators can easily set panel length, production quantity and operating speed on the touch screen to achieve fully automatic cyclic production. The operation logic is intuitive, so workers can become familiar with operation after a short training session — no extensive technical experience required.

Additional safety components, including a foot-pedal emergency-stop switch, improve operator protection. Designed for a 380V 50Hz three-phase industrial power supply, the machine adapts to most factory power environments worldwide.

This production line is suitable for processing regular color-coated steel sheets. It produces high-strength YX21-164-820 trapezoidal roof panels with a neat surface and good weather resistance. Finished panels are widely applied in steel-structure workshops, warehouses, commercial buildings, agricultural sheds and various civil building roofing projects.

Every machine from Dongguang Hengfu undergoes strict quality control throughout raw-material selection, component processing, assembly and pre-delivery running tests. Customers can choose on-site factory acceptance or remote online video acceptance. Besides qualified equipment, we also provide practical technical guidance and after-sales support to help customers put the machine into production smoothly.

Dongguang Hengfu Roll Forming Machine Co., Ltd. is a professional roll-forming machinery manufacturer. We continuously optimize our equipment based on real-world production feedback from overseas and domestic clients. Our YX21-164-820 roll former has won wide market recognition for its firm structure, fast production speed, stable finished quality and convenient maintenance. We are devoted to delivering reliable and cost-effective roll-forming solutions for global partners.