Description

Handle medium‑to‑heavy garage doors with confidence using the Retractable SA350 Gear Set, designed for doors weighing 260–350lbs (118–159kg).

Suitable for door heights between 6’8″ and 7’5″, this heavy‑duty retractable system provides smooth, balanced operation and long‑term reliability — ideal for both door refurbishments and new custom‑built installations.
The AP350 Box Standard Arm Heavy Duty Lifting Gear delivers powerful lifting capability, making it the perfect upgrade for older garage doors where original parts are obsolete or no longer supported by the manufacturer. Its multi‑spring configuration spreads the load evenly across the door, improving longevity and operational stability.
Although capable DIY users may be able to carry out the installation, we strongly recommend using a specialist garage door installer. Correct alignment and safe spring tensioning are essential to ensure dependable and safe operation, particularly with doors in the 260–350lb weight range.

Key Features

• Designed for garage doors weighing 260–350lbs (118–159kg)
• Fits door heights from 6’8″ to 7’5″
• Heavy‑duty multi‑spring retractable design for balanced lifting
• Ideal for double doors and medium‑heavy timber or steel door panels
• Perfect replacement for obsolete or worn retractable gear systems
• Built for strength, stability and long service life

Ideal For

• Replacing outdated or damaged retractable gear on heavy double doors
• Upgrading older garage doors requiring stronger lifting hardware
• Custom‑built garage door projects needing heavy‑duty support
• Ensuring smooth, safe, and reliable operation on larger door panels

Please enquire for short arm (6’0″ to 6’8″) and high arm (7’5¼” to 9’0″) gear packs.

* Locking sets are NOT included in the Kits or Prices *

Heavy Duty Lifting Gear Installation Instructions