Dorex 785AL Door Closer #4 Power Aluminum Doors w/Backcheck

Product Overview

The Dorex 785AL Door Closer (Size 5 Power) is an extra heavy-duty commercial door closer built for wide, heavy, and high-traffic doors. Designed for demanding exterior and institutional environments, this model includes integrated backcheck to reduce damage from forceful opening or wind pressure.

The Aluminum (AL) finish provides a clean, neutral appearance suitable for commercial, industrial, and institutional applications.

Key Features

• Size 5 Spring Power – Maximum closing force for heavy and oversized commercial doors
• Integrated Backcheck – Cushions the door during opening to protect frames and hardware
• Aluminum Finish (AL) – Standard commercial silver finish
• Heavy-Duty Rack and Pinion Mechanism – Smooth, controlled closing performance
• Adjustable Sweep & Latch Speed – Independent valve adjustments
• Surface Mounted Design – Suitable for wood, hollow metal, and aluminum doors
• Non-Handed Installation – Compatible with left- or right-hand doors

Recommended Applications

• Exterior commercial entrance doors
• Industrial and warehouse facilities
• Institutional buildings
• High-wind exposure locations
• Very high-traffic openings

Technical Specifications (Typical for Size 5 Closers with Backcheck)

• Door Width Range: Typically up to 48" and larger (depending on door weight and site conditions)
• Mounting Type: Standard surface mount (regular arm)
• Material: Cast aluminum body
• Adjustments: Sweep speed, latch speed, and backcheck
• Arm Type: Standard arm included
• Finish: Aluminum

Why Choose Size 5 with Backcheck?

Select the 785AL when:

• The door is wide, heavy, or oversized
• Strong wind conditions affect door control
• Traffic volume is very high
• Maximum durability and consistent latching are required

The Dorex 785AL delivers powerful closing force combined with backcheck protection, making it ideal for demanding commercial and industrial environments.