22-Stand C Purlin Roll Forming Machine C50–160 | Jinbolida, Shandong, China

Jinbolida 22-Stand C Purlin Roll Forming Machine – Straight, Sharp-Cornered C Purlins for Large Solar Projects

The Jinbolida 22-Stand C Purlin Roll Forming Machine is built for high-volume production of C-section steel purlins for solar power plants, industrial buildings and rooftop PV systems. Twenty-two progressive forming passes form the C-section in one continuous run, with a strengthened frame and precision roll tooling that give accurate dimensions, sharp right-angle corners and excellent straightness. A multi-roll Turk's head straightener calibrates the finished profile to within ±1.2 mm per 3 m, meeting the demands of long-span purlins, while in-line cutting holds lengths to ±0.7 mm over 6 m. It runs at 35–45 m/min, up to 50 m/min.

Forming Process

• Uncoiling and levelling
• Guided feeding
• Progressive forming of the two C flanges
• Closed forming of the C web
• Over-pressing and shaping to relieve stress
• Multi-roll Turk's head straightening
• In-line length measurement and cutting

Key Features

• Designed for high-volume C purlin production for solar and building projects
• 22 progressive forming passes, forming the C-section in one run
• Strengthened roll tooling and forming sequence for sharp, accurate right-angle corners
• Turk's head multi-roll straightener for precise straightness
• Meets the straightness requirements of long-span purlins
• Over-pressing and shaping to release internal stress
• Burr-free cut ends
• Heavy-duty machine bed

Technical Specifications

• Profile: C-section (C purlin)
• Web width (bottom width): 50–160 mm
• Flange height (waist height): 30–70 mm
• Lip (small edge): 10–20 mm
• Forming passes: 22
• Line speed: 35–45 m/min (up to 50 m/min)
• Main motor: 55 kW
• Total weight: Approx. 22 t
• Footprint: Approx. 14 × 2 m

Accuracy

• Cut length accuracy: ±0.7 mm over 6 m
• Straightness: ≤ ±1.2 mm per 3 m
• Cut ends: Burr-free

Which Jinbolida C Purlin Machine Fits?

• 20-Stand Servo C Purlin Roll Forming Machine: Servo automatic size change, for manufacturers producing many C sizes with frequent changeovers
• 22-Stand C Purlin Roll Forming Machine (this machine): Extra forming passes for sharp corners and straight long-span purlins, for large-scale standard production

Applications

• C purlins for large ground-mount solar power plants
• C purlins for industrial and commercial buildings
• Main support structures for distributed rooftop PV
• Standardised, high-volume C-section production

Commercial Details

• Brand: Jinbolida
• Manufacturer: Shandong Jinbolida Precision Machinery Co., Ltd.
• Place of origin: Heze, Shandong, China

Frequently Asked Questions

• What C sizes can it make? Web widths of 50–160 mm, flange heights of 30–70 mm and lips of 10–20 mm.
• How fast is it? 35–45 m/min, up to 50 m/min.
• How straight are the purlins? Within ±1.2 mm per 3 m, after Turk's head straightening.
• How accurate is the cut length? ±0.7 mm over 6 m.
• How does it differ from the 20-stand machine? It has more forming passes for sharper corners and straighter long purlins, and is aimed at high-volume standard sizes rather than frequent size changes.
• What should I send for a quotation? Your C purlin sizes, material grade and thickness, required lengths and output, punching needs, and your local voltage and frequency.