Multi-Model Cold-Rolling Forming Machine for Punching Holes on Corrugated Steel Keels

• Customization: Available
• After-sales Service: Provide
• Warranty: 1 Year
• Model NO.: ZH520
• Tile Type: Colored Steel
• Certification: CE
• Condition: New
• Customized: Customized
• Usage: Roof
• Transmission Method: Hydraulic Pressure
• Color: Clients Requirement
• Cutting Blade Material: Cr 12 High Grade Steel
• After-Sales Service Provided: Repair Service
• Specification: 7.8*1.55*1.3m
• Trademark: ZHONGHENG
• Origin: China
• Production Capacity: 15m/Min
• Package Size: 470.00cm * 850.00cm * 135.00cm
• Package Gross Weight: 5000.000kg

Product Description

Introduction to the C-Shaped Stud Roll Forming Machine with Punching Function

This is a highly automated metal forming equipment specifically designed for the continuous production of C-shaped studs (or C-shaped light steel framing studs) used in building partition wall systems. Crucially, it punches preset holes directly into the stud web (and sometimes flanges) during or after the forming process.

Core Functions:

1.  Roll Forming: Shapes coiled metal strip material (typically galvanized steel coil) into the desired C-shaped cross-section by progressively bending it through a series of precisely designed forming rolls.
2.  In-line Punching: Utilizes a punching unit to create precisely arranged holes in the stud web (and occasionally flanges) during the forming process (usually near completion) or after forming but before fixed-length cutting.

Main Components:

1.  Uncoiler: Holds and feeds the coiled raw material (steel coil).
2.  Guide & Straightening Device: Ensures the strip enters the forming section flat and centered.
3. Roll Forming Mill: The core section. Consists of multiple stands, each holding one or more pairs of rollers. The strip passes through these rollers in sequence, gradually bent into the final C-section profile. The number and design of the rollers determine forming precision, speed, and compatible material thickness.
4.  Punching Unit: The key differentiator from standard C-stud machines. It's typically integrated into the production line, positioned either:
    In the latter forming stages: When the stud section is mostly formed but not fully hardened/set.
    After forming, before cutting: Just before the flying cut-off.
    As a separate punch press: Sometimes placed beside the line, punching pre-formed studs (offers more flexibility but may impact continuous speed).
    The Punching Unit typically includes:
        Punching Power Source: Hydraulic or mechanical, providing the punching force.
        Punches & Dies: Customized for required hole shapes (round, square, oblong, etc.) and sizes. Dies require high hardness and wear resistance.
        Positioning & Feeding System: Ensures precise hole spacing along the stud length (e.g., 300mm or 400mm modules). Usually driven by high-precision servo control.
        Scrap Handling: Collects punch waste (scrap slugs).
5.  Fixed-Length Cut-off Device: Typically a servo flying cut or hydraulic shear. Precisely cuts the stud into preset lengths (e.g., 3m, 4m) while moving at high speed, producing clean, burr-free cuts without stopping the line.
6.  Outfeed Conveyor/Stacker: Collects, stacks, or conveys the cut finished studs to the next stage (e.g., bundling).
7.  Electrical Control System: Centered around a PLC (Programmable Logic Controller) and HMI (Human-Machine Interface touchscreen). Coordinates the entire line:
     Synchronization of roller drive speeds
      Precise activation, timing, and positioning of the punching unit (hole spacing control)
      Control of cut-off length
      Production speed adjustment
      Fault diagnosis & alarms
8.  Lubrication System: (Optional but recommended) Lubricates rollers and key moving parts to reduce wear, extend lifespan, and ensure forming quality.

Workflow:

1.  Steel coil loaded onto the uncoiler.
2.  Strip passes through straightening guides, entering the forming mill flat.
3.  Strip progressively roll-formed into a C-section through successive roller stands.
4.  The partially or fully formed C-stud enters the punching unit zone.
5.  The positioning system precisely controls stud movement or punch position based on preset hole spacing.
6.  The punching power source drives the punch down, creating holes in the stud web. (This happens while the stud is moving or during brief pauses).
7.  The punched stud advances to the cut-off device.
8.  The servo flying cut precisely shears the stud to the preset length while moving at high speed.
9.  The finished, punched C-stud is conveyed out via the outfeed system for stacking/collection.

Parameter	Typical Range/Specification	Notes
Suitable Material	Galvanized Steel Strip (SGCC, DX51D+Z, etc.)	Cold-rolled low-carbon steel, rust-proof treated
Material Thickness	0.4mm - 2.0mm	Common range: 0.5-1.2mm (ultra-thin/thick requires customization)
Raw Material Coil Width	70mm - 400mm	Determines final stud cross-section size
Coil Inner Diameter (ID)	Ø508mm / Ø610mm (20"/24")	Standard coil specification
Max. Coil Weight	3-10 tons	Depends on equipment load capacity