Heavy-Duty Iron Case Hinge with Blue Zinc Plating – 30KG Load Capacity, Model 1151-51

Material & Finish

• Base Material: 2.0mm Carbon Steel Plate (Stamped One-Piece Construction)
• Surface Treatment: Barrel-Plated Blue Zinc Finish (Uniform Coverage, 30% Enhanced Corrosion Resistance)
• Shaft Core Welding: Rotary Plating Process (Full-Coverage Protection on Welded Joints)

Structural Design

• Embedded Groove: Fully Recessed into Panel Surface (Zero Protrusion, Smooth Installation)
• Exposed Shaft Core: Extends Beyond Box During Operation (Reduces Friction Wear on Enclosures)
• Groove Dimension Advice: Increase Length/Width/Thickness by 1-2mm (Accommodates Panel Thermal Expansion)

Performance

• Opening Angle: 180° (Achieved After Flat Mounting)
• Screw Compatibility: Precisely Matches Standard Screw Through-Hole Diameters (No Drilling Adjustment Required)
• Stock Status: Regular Models Ready to Ship (Bulk Custom Orders Available with Negotiated Lead Times)