• D4551 Stanley Door Closer Surface Mount Regular Arm Size 1 thru 4

*Actual product and finish may vary

D4551 Stanley Door Closer Regular Arm Size 1 thru 4

Arms & brackets – Tri-pack standard (regular, top jamb, parallel configurations).

Stanley D4550 Closer Information

D4550 Series is Stanley’s best performing Heavy Duty Closer. The cylinder body is manufactured using R-14 Silicon Aluminum Alloy providing superior strength and durability on institutional applications. Available in a variety of standard and heavy-duty arm configurations accommodating a broader range of today’s growing architectural application requirements.


Fully Hydraulic Checking - Controls the door through the entire opening and closing cycles by providing adjustable backcheck upon opening and adjusting general and latch speeds through the closing cycle.

Adjustable Spring Power - The D-4551 Series Door Closers are adjustable from size 1 through 4 more than 20% adjustment over size 4. The D-4551 Series Door Closers are designed to meet entrance accessibility requirements of 5LBF opening force or less.

Non-Critical Regulation - The separate adjustments for backcheck, general and latch speeds are equipped with non-critical “V-Slot” regulating valves which allow for fine tuning the closing and latching speeds as well as the backcheck intensity.

All Season Fluid - All season fluid eliminates the need for seasonal adjustment.

Special High Silicon Aluminum Alloy Housing - All D-4551 Series Door Closers are constructed of RYOBI’S R14 HIGH SILICON ALUMINUM ALLOY to exceed the ANSI/BHMA A156.4 Grade 1 requirements.

Forged Arms - Heavy duty forged arms are interchangeable between the D-4550 and D-3550 Series Door Closers.

High Impact Cover - All D-4550 / D-4551 Series Door Closers are shipped with a high impact self-extinguishing decorative cover.

Maintenance Free - Door Closers mounted in accordance with the provided installation instructions are maintenance free from periodic inspection and adjustment.

ANSI and U.L. Specifications

The D-4550 / D-4551 Series Door Closers have been tested and exceed the requirements of the ANSI/BHMA Standard A156.4 - 2000 Grade 1.

UL listed with Underwriters’ Laboratories, Inc. and Underwriters’ Laboratories of Canada for “Self-Closing Doors Without Hold- Open Feature”. (File number 7525R).

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D4551 Stanley Door Closer Surface Mount Regular Arm Size 1 thru 4

  • $234.00

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