GDF20/30 Flange Roll Forming Machine - China Suppliers for HVAC Duct Profile | Leading Factory Equipment
Why do professionals choose LIDING flange machines?
Dual-size one machine design, double production efficiency
Traditional flange machines can only produce one size of flange, and need to stop production for hours to replace molds when switching specifications. Our GDF20/30 machine realizes the production of two mainstream GDF flange sizes on one equipment, no mold replacement is required, and specification switching can be completed in a few minutes. For duct processing plants with multi-specification and small-batch production needs, it directly doubles the production efficiency and saves a lot of mold costs.
18-station precision forming, stable quality for long-term operation
The machine is equipped with 18 sets of forming rollers, made of high-quality GCr15 bearing steel, with professional heat treatment to HRC55°~57°, which has high hardness, wear resistance and long service life. The 40mm diameter 45# steel spindle ensures the stability of the roller set during high-speed operation, no jitter, no deviation, and the formed flange has uniform dimensions, tight joints, and no air leakage after installation. The dimensional error is controlled within ±0.3mm, which fully meets the international HVAC engineering standards.
Stable transmission system, low failure rate and low maintenance cost
Adopting chain and gear combined transmission mode, matched with 5.5kW high-power national standard motor, the transmission is stable and the power is sufficient. It can maintain 8m/min high-speed continuous operation for a long time without failure. The structure design is simple and reasonable, the wearing parts are easy to replace, and the later maintenance cost is extremely low. Even in the workshop environment of 8-hour non-stop production every day, the equipment can maintain stable performance for more than 10 years.
Fool-style operation, zero threshold for workers
The machine is equipped with a simple and intuitive control panel, with forward, reverse and stop core control functions, no complex programming operation is required. Ordinary workers can master the full operation of the equipment after 15 minutes of simple training, and one person can complete the whole process of feeding, production and discharging. There is no need to hire professional technicians, which directly reduces the labor cost of the factory.
Standard Production Process
Galvanized Sheet Coil Loading → Automatic Feeding & Guiding → 18-Station Continuous Roll Forming → Precision Fixed-Length Cutting → Finished GDF Flange Automatic Discharging
Frequently Asked Questions (FAQ)
How does the dual-size design improve production efficiency?
Unlike traditional machines that require hours of downtime to swap molds for different sizes, the GDF20/30 machine produces two mainstream GDF flange sizes on a single system. Size switching takes only a few minutes without mold replacement, effectively doubling output for multi-specification runs.
What is the material and durability of the forming rollers?
The machine utilizes 18 sets of forming rollers made from premium GCr15 bearing steel. These rollers undergo professional heat treatment to reach HRC55°~57° hardness, ensuring outstanding wear resistance and a prolonged operating life.
What level of dimensional accuracy does the machine achieve?
Thanks to the robust 40mm diameter 45# steel spindle and 18-station precision forming configuration, the dimensional error is strictly controlled within ±0.3mm. This guarantees uniform dimensions, tight joints, and zero air leakage, fully satisfying international HVAC engineering standards.
Is specialized labor required to operate the LIDING flange machine?
No. The machine features an intuitive control panel with straightforward forward, reverse, and stop functions. Ordinary operators can fully master the feeding, production, and discharging processes after just 15 minutes of training, reducing labor costs.
What are the maintenance requirements for the transmission system?
The system uses a highly reliable chain and gear combined transmission driven by a 5.5kW national standard motor. The simple, robust design keeps wear to a minimum. Wearing parts are easy to replace, ensuring low maintenance costs even under heavy 8-hour daily shifts.
What is the standard workflow of the production line?
The process is fully streamlined: Galvanized Sheet Coil Loading → Automatic Feeding & Guiding → 18-Station Continuous Roll Forming → Precision Fixed-Length Cutting → Finished GDF Flange Automatic Discharging.