Seco-Larm SD-C101-SBAQ Grade-1 Door Closer

Heavy-Duty Commercial Door Closer with Adjustable Back Check

The Seco-Larm SD-C101-SBAQ is a heavy-duty, surface-mounted door closer designed for commercial metal and wood doors. Its adjustable Size 1 through Size 6 spring force allows the closer to be configured for doors weighing from 45 to 330 pounds and measuring up to 60 inches wide.

Independent adjustments for sweep speed, latch speed, and back check allow installers to control how the door closes throughout its travel. The back-check function helps reduce abrupt opening near the end of the door swing, while the adjustable latch range controls the final closing movement from approximately 15 degrees to the closed position.

The SD-C101-SBAQ uses a cast-aluminum body and forged-steel arm assembly with a silver finish. Its non-handed design supports left- or right-hand doors, and the tri-pack hardware allows regular-arm, top-jamb, or parallel-arm installation. A plastic cover is included to conceal the closer body after installation.

Certified to ANSI/BHMA A156.4 Grade 1 standards for 2 million cycles, this closer is suited for frequently used commercial entrances, offices, controlled-access doors, multifamily buildings, institutional facilities, and compatible fire or smoke-check doors.

Key Features

• Heavy-duty Grade 1 surface-mounted door closer
• Designed for commercial metal and wood doors
• Adjustable Size 1 through Size 6 closing force
• Supports doors weighing from 45 to 330 lb.
• Compatible with door widths from approximately 32 to 60 in.
• Independent sweep-speed and latch-speed adjustment
• Adjustable back check helps control excessive opening force
• Non-handed design for left- or right-hand doors
• Tri-pack installation for regular arm, top jamb, or parallel arm
• Cast-aluminum closer body with forged-steel arms
• Silver finish with concealing plastic cover
• Maximum hinge-side opening angle of 180 degrees
• Suitable for compatible fire and smoke-check doors
• ANSI/BHMA A156.4 certified for 2 million cycles
• UL listed
• Five-year manufacturer warranty

Technical Specifications

• Manufacturer: SECO-LARM
• Brand: ENFORCER
• Model / Part Number: SD-C101-SBAQ
• Product Type: Surface-mounted hydraulic door closer with back check
• Commercial Grade: Grade 1
• Certification: ANSI/BHMA A156.4
• Cycle Rating: 2 million cycles
• UL Listing: Yes
• Closing Force: Adjustable Size 1 through Size 6
• Closing-Force Adjustment: Adjustment screw
• Sweep Speed: Adjustable
• Latch Speed: Adjustable
• Latch Range: Approximately 15° to 0°
• Back Check: Adjustable
• Adjustment Valves: One sweep valve, one latch valve, and one back-check valve
• Handing: Non-handed and reversible
• Door Width Range: Approximately 32 to 60 in. (800 to 1,500 mm)
• Door Weight Range: 45 to 330 lb. (20 to 150 kg)
• Compatible Door Materials: Metal or wood
• Maximum Hinge-Side Opening: 180°
• Fire and Smoke-Check Door Use: Yes
• Installation Configurations: Regular arm, top jamb, and parallel arm
• Body Construction: Cast aluminum
• Arm Construction: Forged steel
• Finish: Silver
• Cover: Plastic body cover included
• Parallel-Arm Accessories: Included
• Closer Body Length: Approximately 12-13/16 in. (325 mm)
• Closer Body Height: Approximately 2 in. (51.5 mm)
• Closer Body Depth: Approximately 1-7/8 in. (47 mm)
• Mounting Footprint: 12 x 3/4 in. (304.8 x 19 mm)
• Product Weight: Approximately 4 lb. (1.83 kg)
• Included Components: Door closer, forged-steel arm assembly, plastic cover, and installation hardware
• Warranty: Five years
• Installation Note: Closing force and speed adjustments should be set for the specific door size, weight, installation method, and site conditions

Conclusion

The Seco-Larm SD-C101-SBAQ provides adjustable closing control for commercial doors ranging from lighter interior openings to doors weighing up to 330 pounds. Its Grade 1 construction, back check, three mounting configurations, and independently adjustable closing functions allow the closer to be matched to a wide range of commercial door applications.