Advanced Flexible Duct Connection Line High Precision Automatic Fabric and Metal Joint Forming Machine
Product Overview
Designed for high-efficiency production of flexible connectors, this full-automatic roll forming line is engineered and manufactured by Dongguang Hengfu Roll Forming Machine Co., Ltd. It is specially built to process galvanized steel sheets and fire-resistant fabric, delivering stable, high-quality finished products for ventilation, pipeline, and dust removal systems. With reliable structure, precise forming, and easy operation, this machine provides a cost-effective and durable production solution for manufacturers worldwide.
This integrated production line combines a complete workflow: uncoiling, servo feeding and punching, roll forming, secondary punching, cutting, and material collecting. It supports galvanized steel with a thickness of 0.3-0.6 mm and width of 50-105 mm, as well as fire-resistant fabric from 120 mm to 450 mm. The final flexible connector width ranges from 180 mm to 600 mm, fully meeting diverse project requirements. The automatic process ensures high productivity, consistent dimensions, and stable output at a speed of 6-8 meters per minute.
Technical Specifications
| Item |
Specification |
| Applicable Material |
Galvanized steel sheet; Fire-resistant fabric |
| Material Thickness |
Galvanized sheet: 0.3-0.6 mm |
| Material Width |
Galvanized sheet: 50-105 mm
Fire-resistant fabric: 120-450 mm |
| Finished Product Width |
180-600 mm |
| Forming Stands |
12 stands |
| Main Shaft |
Cr40 steel, precision machined |
| Rollers |
High-grade Gcr15 bearing steel, 0.05 mm hard chrome plating |
| Main Motor |
3 KW with cycloidal pinwheel reducer |
| Forming Speed |
6-8 m/min |
| Machine Frame |
80*80 square tube welded structure; vertical plate 14 mm thick |
| Voltage |
380V / 50Hz / 3Phase (customizable) |
| Overall Dimensions |
Approx. 3.5 m * 2 m * 1.5 m |
| Working Flow |
Uncoiling -> Servo feeding & punching -> Roll forming -> Punching -> Cutting -> Collecting |
| Equipment Configuration |
Main forming machine: 1 set
Punching & cutting dies: 4 sets
Control system: 1 set
Servo feeding & punching unit: 1 set
Hydraulic power unit: 1 set
Electric uncoiler: 2 sets
Electric coiler: 1 set |
Construction & Performance
Built with heavy-duty industrial components, the machine features 12 forming stands for smooth and accurate profile shaping. The main shaft is made of Cr40 steel with fine machining, while the forming rolls adopt high-grade Gcr15 bearing steel with 0.05 mm hard chrome plating for excellent wear resistance and long service life. The frame is constructed with 80*80 square tubes and 14 mm thick vertical plates, ensuring strong stability during continuous operation. Powered by a 3 KW main motor and controlled by a PLC system, the machine runs steadily under 380V/50Hz/3Phase power supply.
Quality Assurance & Support
Backed by the professional strength and strict quality control of Dongguang Hengfu Roll Forming Machine Co., Ltd., this flexible connector roll forming machine offers outstanding reliability, low maintenance, and long service life. The company provides full after-sales support including on-site installation, commissioning, and free operator training. With high efficiency, precise forming, and strong adaptability, it is the ideal choice for businesses to improve production capacity and product quality in the flexible connector industry.
Frequently Asked Questions
What is the structure of the machine frame?
It features a fully welded steel plate frame, constructed from thickened steel plates that have undergone stress-relieving annealing to ensure they remain free from deformation.
What's the delivery time?
Normally it takes about 45 days.
What is the difference between your machines and cheaper alternatives?
- The machine frame is thicker and will not deform even after prolonged use.
- The rollers feature high precision, ensuring a standard and consistent panel profile.
- The cutting system is stable, guaranteeing precise length accuracy.
- It boasts a low failure rate and low maintenance costs.
- It offers a significantly longer service life.
Can the machine produce stainless steel sheets? What are the requirements for the equipment?
Yes, it can; however, it requires reinforcing the forming frames, increasing the hardness of the rollers, and adjusting the forming process.
Is it normal for burrs to appear on the cut edges of the sheet metal after cutting?
Minor burrs are normal and acceptable; however, severe burrs are typically caused by a dull cutting blade or improper blade clearance.
