4-Way Wedge Connection
Rigid, Fast, and Safe Modular Assembly
The SY-2 Series System Scaffold (Models: SY-2 / SY-21 / SY-22) is manufactured using high-yield SS275 steel pipe (48.6mm OD x 2.3t standard, 1.8t~2.0t lightweight high-tensile).
Its patented 4-hole vertical pin flange provides a rigid 90° lock upon wedge insertion, reducing site erection labor by 70% compared to traditional loose-clamp scaffolding.
Official Catalog Blueprints
System Scaffold Specification & Assembly Diagrams
Exact technical drawings, member dimensions, unit weights, and structural assembly layout from the SEIYON SYSTEM catalog.
SY-2 System Scaffold Vertical & Horizontal Specifications
System Scaffold Accessories & Wall Assembly Blueprint
Engineering Data
SY-2 Technical Specifications Matrix
| Component Type | Model / Code | Pipe Specs (mm) | Length / Dimension (mm) | Weight (kg) | Material & Coating |
|---|---|---|---|---|---|
| Vertical Standard (수직재) | SY-2V 3.8M / 2.8M / 1.9M / 0.9M | Ø48.6 x 2.3t (SS275) | 3800 / 2850 / 1900 / 950 | 14.8 / 11.2 / 7.6 / 3.8 | SS275 High-Tensile / HD Galvanized |
| Lightweight Vertical (고장력 수직재) | SY-21V Series | Ø48.6 x 1.8t~2.0t | 3800 / 2850 / 1900 / 950 | 12.2 / 9.1 / 6.1 / 3.1 | High-Strength SS275 / HD Galvanized |
| Horizontal Ledger (수평재) | SY-2H 1.8M / 1.5M / 1.2M / 0.9M / 0.6M | Ø48.6 x 2.0t (SS275) | 1829 / 1524 / 1219 / 914 / 610 | 6.8 / 5.7 / 4.6 / 3.5 / 2.4 | Wedge Pin End / Galvanized |
| Diagonal Brace (가새) | SY-2D 1.8x1.9M / 1.5x1.9M | Ø42.7 x 1.8t (SS275) | 2637 / 2434 | 7.2 / 6.5 | Swivel Wedge Pin / Galvanized |
| Anti-Slip Catwalk Plank (유턴발판) | SY-P50 / SY-P40 / SY-P25 | 1.2t Punching Plank | 500x1829 / 400x1829 / 250x1829 | 14.5 / 12.0 / 8.5 | Hot-Dip Galvanized Anti-Slip Punching |
| Safety Stairway (안전계단) | SY-ST 1819 | Aluminum / Galvanized Steel | 914 x 1829 x 1900 (H) | 24.0 | Handrail Included / KCs Safety Certified |
| Base Jack (자키베이스) | SY-BJ 500 / 600 | Ø34.0 Screw Jack | 500L / 600L | 4.2 / 4.8 | High Load Cast Steel / Zinc Plated |