Heavy-Duty Spring Hinges with Adjustable Tension | Commercial-Grade Door Hardware
Product Introduction: Engineered for demanding environments, our Heavy-Duty Spring Hinges with Adjustable Tension deliver unmatched durability and precision control for commercial and industrial doors. Featuring robust SS304 naterial construction and ANSI/BHMA-certified performance, these hinges are built to withstand high-traffic use while ensuring smooth, reliable door closure every time.
Product Description: Commercial-Grade Performance Crafted from corrosion-resistant SS304 with a reinforced steel spring core, these hinges excel in high-frequency settings like retail stores, warehouses, and office buildings. The 360° adjustable tension mechanism allows precise calibration for doors weighing up to 150 lbs, eliminating sagging or slamming issues.
Why Professionals Choose Us:
✔️ ANSI/BHMA A156.1 Certified (highest US hinge performance standard)
✔️ Installation-Ready – Includes stainless steel screws & shim plates
Optimized Technical Specification for US Market:
Standard Precision Sizing
Engineered to meet North American architectural standards, our spring hinges are available in two industry-preferred dimensions:
4.5×4.5×3.0mm
Ideal for: Commercial steel doors (1-3/4" thickness)
Fire-rated door assemblies
High-security entry systems
4.0×4.0×3.0mm
Optimized for:
Residential interior doors (1-3/8" thickness)
ADA-compliant bathroom partitions
Retail display cabinet doors
US Market Adaptations:
✔️ Dual Measurement Compliance
✔️ Load-Optimized Design
4.5mm models support doors up to 180 lbs (ASTM F476)
4.0mm models rated for 130 lbs (residential/commercial hybrid use)
