Door Closers

Barzel Lock Stocks Door Closers In All Options & Finishes. 

Arrow Door Closers Corbin Russwin Door Closers Dorma Door Closers  Falcon Door Closers Hager Door Closers
LCN Door Closers Norton Door Closers Sargent Door Closers Taco Door Closers Yale Door Closers


Commercial door closers control how quickly or slowly a door closes, and the type of door closer you choose depends on several factors -- such as your needs, your budget, your building’s architecture, whether you need the door closer for an interior or exterior door, and whether you need a heavy-duty door closer for doors that get a high volume of usage. Barzel Lock offers a wide variety of door closers to meet any need.

We have the most basic types of door closers for light duty applications, to power operated door closers, to electromechanical door closers for applications in which the door will be used frequently by those who are older, are ill, use a wheelchair or have other disabilities. We also offer low-power pneumatic door closers and openers that are helpful in applications where door usage is usually manual, but sometimes automatic operation is needed.

Whether you need a door closer for a school, hospital, retail store, apartment building, nursing home or any other facility, commercial door closers from Barzel Lock make sure the door closes securely but at a safe speed. Browse our selection of door closers for commercial or health care facilities and place your order today.

The SARGENT 421 is a revolutionary door closer that provides the highest performance of any track type door closer made today. Its innovative cam action design applies the closing forces in exactly the proper locations for smooth and efficient operation. The result is a door that is light to open and still has more than enough power to close.


  • Conforms to standards UL 10C and UBC 7-2 for positive pressure fire test
  • UL and cUL listed for use on fire doors                                                                         Note: Any retrofit or other field modification to a fire rated opening can potentially impact the fire rating of the opening, and Sargent Manufacturing Company makes no representations or warranties concerning what such impact may be in any specific situation. When retrofitting any portion of an existing fire rated opening, or specifying and installing a new fire-rated opening, please consult with a code specialist or local code official (Authority Having Jurisdiction) to ensure compliance with all applicable codes and ratings. 
  • 10 Year Warranty 
  • While meeting the 5 lb. ADA requirements, the 421 still provides exceptional force to close and latch door
  • Square spindle provides fool proof arm installation
  • Push or pull installations with the same closer body
  • Adjustable spring power allows 421 closers a size range of 1 through 6
  • Closer bodies are non-handed
  • Designed to meet ADA requirements in push or pull track applications
  • Standard pressure relief valves for both opening and closing cycles protect the
    door & frame from damage caused by abuse
  • High impact non-corrosive one piece plastic covers standard (Optional metal
    cover available)
  • Cover secured by machine screws 
  • All weather fluid allows closer to operate effectively in extreme heat and cold
    without readjustment

Heavy Duty Construction

  • Heavy duty one piece high silicon content aluminum alloy body provides
    corrosion resistance, superior strength and wear resistance
  • Dual pistons provide superior door control and high efficiency
  • 1/2" arm engagement over a 7/16 square spindle ensures a wear-resistant tight joint
  • Full complement roller bearings provide resistance to abuse


  • Machine screws and self tapping screws provided for closer and arm
  • In addition, wood screws supplied when installed on wood doors without through bolts


  • Separate low sensitivity brass control valves offer ability to separately regulate
    door speed, latching, backcheck
  • All valves are captured to prevent accidental removal; adjustable with a
    5/32" Allen wrench
  • Adjustable backcheck protects the door and hardware from damage during the
    opening cycle


  • Innovative cam and dual piston design provides superior performance with the
    aesthetics of a track type closer
  • SARGENT’s revolutionary MicroShield™ available. This antimicrobial silver-based finish coating permanently suppresses the growth of bacteria, algae, fungus, mold and mildew. EPA and NSF approved and FDA listed