Description
The ‘A’ Type End-Load Center-Hung Top Arm Assembly is designed for commercial door applications, providing reliable operation for overhead concealed door closer systems. Ideal for aluminum and hollow metal doors, this arm assembly ensures smooth and controlled door movement in high-traffic environments.
Sold by: Each
Function: Closer Arm
Type: ‘A’ Type End-Load Center-Hung Top Arm Assembly
Handing: Non-Handed
Recommended Door Type: Aluminum, Hollow Metal
Minimum Top Rail Depth: 1″ (25.4 mm)
Rail Type: End-Load for Open-End Top Rails
Adjustment: Door Centering via End Bolts (No In/Out Adjustment)
Corner Type: Not Applicable (No Radius or Square Corners)
Includes: End Load Arm
Application: Concealed Door Closer Systems
Part Number: CH-529
Constructed for durability and consistent performance, this end-load arm assembly is engineered to deliver efficient force transfer and dependable closing action. Its robust design maintains proper door alignment while supporting long-term operation in demanding applications.
Designed for use with 1″ top rails, this ‘A’ type arm assembly features an end-loading configuration with no in or out adjustment. The two bolts at the end of the arm allow for precise door centering, making it suitable for installations where fine alignment is required. Ideal for center-hung door systems with an opening at the end of the rail, it provides reliable and accurate door control.





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