Grade 1 Heavy Duty Door Closer D-4550

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The D-4550 Series is STANLEY’S best performing heavy-duty closer. The non-handed 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.
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FORGED SILICON ALLOY CYLINDER BODY
Manufactured with automotive grade silicon aluminum alloy to enable superior performance and wear resistance under extreme hydraulic pressures
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FORGED HEAVY DUTY ARMS
Forged construction provides superior performance with an aesthetically-pleasing low profile design
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IMPACT RESISTANT COVER
Non-handed impact resistant cover providing aesthetically-pleasing design with dependable cylinder body engagement
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SPRING POWER ADJUSTMENT
Widest range of spring power adjustment to accommodate application needs
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EASY/LOW PROFILE HYDRAULIC ADJUSTMENT
V-slot valves enable fine tune hydraulic adjustment
Low profile “O” rings reduce leaks from improper field adjustment
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ALL SEASON FLUID
Eliminates the need for seasonal adjustment
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RETROFIT ADAPTER MOUNTING PLATES
Retrofit adapter plates for use on LCN 4040XP and 4110 mounting hole locations

PRODUCT RESOURCES

 
Stanley
 

Mechanical & Electronic Access Control Hardware Systems

All hardware meets ANSI/BHMA A156.13 and UL 3Hr A Label

Get your technical questions answered with installation guides, door templates, spec sheets, product catalogs, and other materials available whenever you need it.

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