Dorex 753AL Door closer, size 3 (interior doors)

Product Overview

The Dorex 753AL Door Closer (Size 3 Power) is a versatile, medium-duty commercial door closer designed for standard interior and light-duty exterior applications. Size 3 is one of the most commonly specified spring sizes for commercial buildings, offering balanced closing force and dependable performance.

The Aluminum (AL) finish provides a clean, neutral appearance suitable for most commercial environments.

Key Features

• Size 3 Spring Power – Ideal for standard commercial doors
• Aluminum Finish (AL) – Standard commercial silver finish
• Rack and Pinion Operation – Smooth and consistent door control
• Adjustable Sweep & Latch Speed – Independent speed control valves
• Surface Mounted Installation – Compatible with wood, hollow metal, and aluminum doors
• Non-Handed Design – Suitable for left- or right-hand installations

Recommended Applications

• Interior office doors
• Retail and commercial spaces
• Institutional facilities
• Light-duty exterior doors (depending on exposure and door weight)
• Standard aluminum storefront interior doors

Technical Specifications (Typical for Size 3 Closers)

• Door Width Range: Typically up to 36"–42" (depending on door weight and conditions)
• Mounting Type: Standard surface mount (regular arm)
• Material: Cast aluminum body
• Adjustments: Sweep speed and latch speed valves
• Arm Type: Standard arm included
• Finish: Aluminum

When to Choose Size 3

Select a Size 3 closer when:

• The door is a standard commercial width
• Traffic volume is moderate to high
• A Size 2 closer does not provide enough closing force
• Reliable, balanced door control is required

The Dorex 753AL provides dependable commercial performance for typical office, retail, and institutional door applications.