SC Snap Lock Forming Machine for HVAC Duct Sheet Metal
5-in-1 Versatile Cleat & Lock Forming: Designed to form essential HVAC duct seam profiles including S-cleat slip, C-cleat (drive cleat), Pittsburgh lock, claw shape, and round duct elbow locks without changing roller wheels.
Broad Gauge Capacity: Handles 18–24 Gauge sheet metal (0.5 mm to 1.2 mm galvanized sheet or low carbon steel; up to 0.8 mm for S-shape and 1.0 mm for C-cleat).
Industrial Hardened Tooling: Engineered with vacuum-quenched GCr15 alloy forming rollers, thermal-refined 40Cr roller shafts, Harbin precision bearings, and vacuum-quenched 20CrMoT gears.
Efficient & Compact Workshop Utility: Line speed of 9 m/min (26 ft/min) driven by a 2.2 kW Nanjing Volp motor; arc-welded rigid frame with 220V/380V/450V voltage compatibility.
Overview & Cleat Forming Performance
The SC Snap Lock / S-Cleat Forming Machine (Model SA-12S) is an indispensable, multi-purpose roll forming solution tailored for industrial HVAC ventilation duct fabrication. It specializes in rolling high-precision S-cleats, C-cleats (drive slips), Pittsburgh locks, and round duct joint profiles rapidly and quietly.
Engineered for heavy-duty metal shops, it allows operators to manufacture 5 different duct connection profiles directly on a single machine without replacing or re-aligning forming rollers, delivering notable time savings and consistent seaming accuracy.
Available Seam Profiles & Applications
The machine covers essential duct assembly joints across galvanized steel and sheet metal ducts:
- “S” Cleat Profile (Slip Joint): Creates flat, smooth connecting slips (0.5–0.8 mm) for transverse duct connections.
- “C” Cleat (Drive Slip / Locking Pin): Standard drive slips (0.5–1.0 mm) for locking rectangular air duct joints securely.
- Pittsburgh Lock Seam: Standard female pocket seam (0.5–1.2 mm) for rectangular duct corners.
- Claw Shape (Single Hem / Male Edge): Right-angle standing insert seam (0.5–1.2 mm).
- Round Elbow Flanging: Specialized arc-forming station for assembling round ventilation elbows.
Main Technical Parameters (Model SA-12S)
| Model | Shape Name | Thickness (mm) | Material Width (mm) | Molding Height (mm) | Power / Weight | Dimensions (mm) |
|---|---|---|---|---|---|---|
| SA-12S | Pittsburgh lock | 0.5 – 1.2 mm | 30 mm | 13.2 mm | 2.2 kW 365 kg |
1512 × 628 × 1190 (L × W × H) |
| Claw Shape | 0.5 – 1.2 mm | 9 mm | 13.2 mm | |||
| Round Elbow | 0.5 – 1.2 mm | 9 mm | 13.2 mm | |||
| “C” Cleat | 0.5 – 1.0 mm | 54 mm | 28 mm | |||
| “S” Shape | 0.5 – 0.8 mm | 92 mm | 28 mm | |||
| Line Speed | 26 ft/min (approx. 9 m/min) | Voltage | 220V / 380V / 450V | |||
Key Advantages & Quality Standards
| Feature / Component | Technical Advantage |
|---|---|
| Transmission Gears & Bearings | Carburized & vacuum-quenched 20CrMoT gears paired with authentic Harbin (HRB) precision ball bearings. |
| Forming Roller Tooling | Precision CNC turned GCr15 bearing steel, vacuum-quenched for superior surface hardness and wear resistance. |
| Roller Shafts | Thermal-refined 40Cr high-temperature quenched & tempered shafts to eliminate bending under continuous load. |
| Machine Bed & Frame | Heavy-duty arc-welded steel construction with reinforced bottom baseplate for ultra-low vibration and minimal noise. |
| Drive Motor | 2.2 kW high-efficiency Nanjing Volp industrial electric motor. |
Technical Specifications & Seam Chart
Forming Shapes, Cross-Section Profiles & Parameter Overview
Infeed Guides & Profile Seam Close-Up
Adjustable Infeed Guide Rails
S-Cleat Cross-Section Tightness
Roller Table & Sample Strips
Factory Workshop & Machine Views
Side Profile & Safety Switch
Shop Floor Side Perspective
Front Panel & JLKJ Branding
Related Products
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