Drywall CD & UD Profile Roll Forming Machine: The Backbone of Modern Light-Gauge Steel Framing

What Are CD and UD Profiles?

• CD Profile (Ceiling Stud)​ – A C-shaped section, typically sized at 60×27 mm, that forms the main supporting framework of a suspended ceiling. It provides structural stability and serves as the fixing point for gypsum boards and other decorative panels.
• UD Profile (Ceiling Track)​ – A U-shaped section, typically sized at 28×27 mm, that anchors the CD studs to the perimeter walls. Its groove design makes panel fixation simple while contributing to wall insulation and acoustic performance.

How the Roll Forming Machine Works

1. Decoiling​ – A manual or hydraulic decoiler (3-ton capacity) holds the galvanized steel coil and feeds it into the line under tension control.
2. Leveling & Guiding​ – The strip passes through a leveling unit to remove coil set, then through an adjustable guide that ensures perfect alignment with the roller stations.
3. Pre-Punching (Optional)​ – A servo-driven punching unit creates knock-out holes, service openings, or embossing patterns while the steel is still flat, guaranteeing accuracy.
4. Roll Forming​ – The strip travels through 9 to 18 roller stations. At each station, a pair of hardened rollers (typically made from Cr12MoV alloy steel, quenched to HRC 58–62) makes a small incremental bend. By the final station, the strip has become a precise C or U section.
5. Flying Cut-Off​ – A hydraulic or servo-driven flying shear cuts the continuous profile to pre-programmed lengths without stopping the line, maintaining tolerances of ±1 mm over 3 meters.
6. Stacking & Strapping​ – Finished profiles are conveyed to an automatic stacker, bundled, and strapped with PP belts, ready for shipment.

Key Technical Specifications

Parameter	Typical Specification
Raw Material	Galvanized steel (GI), PPGI, or stainless steel
Material Thickness	0.3 – 1.2 mm (most commonly 0.35 – 0.6 mm)
Profile Sizes	CD 60×27 mm; UD 28×27 mm (customizable)
Forming Stations	9 – 18 rows
Roller Material	Cr12MoV, HRC 58–62, chrome-plated
Shaft Diameter	50 – 55 mm, 45# steel with chrome coating
Production Speed	30 – 60 m/min (high-speed models up to 90–100 m/min)
Cutting System	Hydraulic or servo flying shear
Control System	PLC (Delta/Siemens) with touchscreen HMI
Main Motor Power	4 – 12.5 kW
Voltage	380 V / 50 Hz / 3-phase (customizable)
Machine Dimensions	Approx. 5.5 × 1.1 × 1.5 m