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

Heavy-Duty Commercial Door Closer with Adjustable Back Check

The Seco-Larm SD-C101-SGQ is a heavy-duty, surface-mounted door closer 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.

Separate adjustment valves control the sweep speed, latch speed, and back check. Sweep adjustment regulates the main closing movement, while latch-speed adjustment controls the final 15 degrees of travel to help the door engage its latch. The adjustable back check helps slow excessive opening movement as the door approaches its maximum opening angle.

The reversible, non-handed design can be installed on left- or right-hand doors. Included tri-pack hardware supports regular-arm, top-jamb, and parallel-arm mounting, allowing the closer to accommodate different door and frame configurations.

The SD-C101-SGQ has a cast-aluminum body, forged-steel arm, and silver finish. Its ANSI/BHMA A156.4 Grade 1 certification covers 2 million operating cycles, making it appropriate for frequently used commercial entrances, offices, multifamily properties, controlled-access doors, and compatible fire or smoke-check doors.

Key Features

• Heavy-duty Grade 1 surface-mounted commercial door closer
• Adjustable Size 1 through Size 6 spring force
• Supports metal or wood doors weighing from 45 to 330 lb.
• Fits doors approximately 32 to 60 in. wide
• Independent sweep-speed and latch-speed adjustments
• Adjustable back check helps control excessive opening movement
• Non-handed design for left- or right-hand doors
• Tri-pack mounting for regular arm, top jamb, or parallel arm
• Cast-aluminum body with forged-steel arm
• Silver finish
• Maximum hinge-side opening angle of 130°
• 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-SGQ
• 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: Reversible, non-handed design
• 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: 130°
• 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
• Parallel-Arm Accessories: Included
• Closer Body Length: Approximately 9-11/16 in. (246 mm)
• Closer Body Height: Approximately 2-3/4 in. (70 mm)
• Mounting Footprint: Approximately 9-1/16 x 3/4 in. (230 x 19 mm)
• Product Weight: Approximately 3.5 lb. (1.58 kg)
• Included Components: Door closer, forged-steel arm assembly, parallel-arm accessories, and installation hardware
• Warranty: Five years
• Installation Note: Closing force, sweep speed, latch speed, and back check should be adjusted for the door size, weight, mounting configuration, and site conditions

Conclusion

The Seco-Larm SD-C101-SGQ provides adjustable closing control for commercial doors weighing up to 330 pounds. Its Grade 1 construction, three mounting configurations, back check, and separate speed adjustments allow the closer to be configured for a range of commercial and controlled-access door applications.