Primeline Tools GD 12225 – 180° Deflection Torsion Spring

Description

The Primeline Tools GD 12225 torsion spring is engineered for reliable performance in garage-door and other mechanical torque applications. Manufactured from high-strength carbon steel with a plain finish, this left-hand wind spring offers smooth operation and solid durability under frequent use.

Key Features & Design Specifications

• Deflection Angle: 180° — ideal for full-range torque control
• Wind Direction: Left-hand, suitable for the installation’s left side
• Material: High-grade carbon steel with a clean, plain finish for long-term wear resistance
• Wire Diameter: 0.207" (≈ 5.26 mm), balancing strength with flexibility
• Inside Diameter: 1.75" (≈ 44.5 mm), Outside Diameter: ~2 5/32" (≈ 52.4 mm)
• Leg Length: 18 in (≈ 457 mm), providing ample leverage for installation and torque application
• Free Length: 18 in (no torque applied)
• Number of Coils: ~4.809 coils per inch (~86.96 total coils) for optimized tension behavior
• Torque & Initial Tension: Initial tension rated at ~110 lb; spring length measured at torque 0.25 in
• End Type & Accessories: Equipped with closed drawbar ends and includes stationary and winding cones for secure installation

Technical Specifications at a Glance

Ideal Applications

• Replacement or repair of left-hand garage door torsion springs
• Mechanical assemblies requiring consistent, full-range torque control over 180°
• Systems needing accurate tension and controlled release, such as sectional door operators or machinery mechanisms

Installation & Safety Notes

• Must be used as a left-hand wind spring; usually installed on the left side when viewed from inside the garage
• Replace both springs in dual-spring setups simultaneously to avoid uneven strain and failure
• Use only proper winding tools—Prime-Line’s GD 52238 winding rod is explicitly recommended—to avoid injury
• Installation or removal by untrained individuals is not advised due to potential hazards of handling stored torsional energy

Why Choose GD 12225?

Primeline Tools delivers dependable garage and mechanical components. The GD 12225 spring stands out with its:

• Precision engineering for predictable torque characteristics
• Sturdy construction—carbon steel resists fatigue from frequent cycles
• Factory-included cones that simplify installation and ensure proper orientation

In sum, GD 12225 combines safety, accuracy, and performance—perfect for professional installers and maintenance experts.