LCN 4050A Heavy-Duty Cast Aluminum Surface-Mounted Door Closer with 25-Year WarrantyProfessional-Grade Commercial Door Closer SolutionThe LCN 4050A Series cast aluminum door closer delivers professional-grade performance engineered for high-frequency, high-abuse commercial applications. Featuring a cast aluminum cylinder with full-complement bearing and 1-1/2″ diameter piston, this closer provides reliable operation with adjustable spring sizes 1-6 for versatile door weight compatibility. Built to excel in harsh environments while meeting ANSI/BHMA A156.4 Grade 1 certification and ADA requirements with industry-leading 25-year warranty coverage.Professional Features & BenefitsHeavy-Duty Cast Aluminum Construction: Cast aluminum cylinder with full-complement bearing and double heat-treated steel pinion journal provides exceptional durability for demanding commercial applications.Adjustable Spring Force: Spring sizes 1-6 accommodate various door weights and applications for optimal closing performance across different installation requirements.All-Weather Performance: Liquid X all-weather fluid ensures consistent operation across temperature extremes and environmental conditions for reliable year-round performance.Grade 1 Certification: Tested and certified under ANSI/BHMA A156.4 Grade 1 standards with UL and cUL listings for code compliance and professional applications.Universal Installation: Non-handed design simplifies inventory and installation with multiple mounting options including hinge pull side, push side top jamb, and push side parallel arm configurations.ADA Compliance: Meets ADA requirements for accessible door operation in commercial facilities ensuring regulatory compliance.Manufacturer Warranty: Industry-leading 25-year warranty coverage provides long-term confidence and protection for commercial installations.Versatile Finish Options: Standard powder coat finish with 6 standard colors and unlimited custom colors, plus optional full metal cover and SRI primer for corrosive conditions.Technical SpecificationsADA Compliant: YesBAA Qualified: YesCloser Size: 1Closer Size: 3Closer Size: 5Closer Size: 6Closer Size: 2Closer Size: 4Commercial/Residential: CommercialCover Type: Plastic/MetalDelay Function: YesDepartment: Door HardwareDuty Level: Heavy DutyFinish Type: Powder CoatFluid Type: All-WeatherMounting Detail: Surface – Hinge Mount(Pull Side), Top Jamb Mount(Push Side), Parallel Arm Mount(Push Side)Mounting Hole Pattern: 2-3/8″ x 6-3/4″Mounting Location: Pull SideMounting Location: Push SideMounting Method: Surface MountProduct Category: Door ControlsProduct Group: Door ControlsProduct Model: 4050AProduct Subgroup: Door Closers – Surface MountedProduct Substrate: AluminumProduct Type: Surface Mounted Door ClosersSeries: 4050A SeriesSubcategory: Door Closers – Surface MountedWarranty: 25 YearProfessional ApplicationsCommercial Office BuildingsEducational FacilitiesHealthcare InstitutionsRetail EstablishmentsIndustrial and Warehouse FacilitiesMulti-Tenant Residential PropertiesGovernment and Municipal BuildingsWhy Choose LCN Quality?LCN door closer products deliver professional-grade reliability with cast aluminum construction and full-complement bearing design rated for high-frequency, high-abuse applications. Backed by an industry-leading 25-year warranty and featuring patent-pending design elements with all-weather Liquid X fluid. Engineered for demanding commercial applications where dependable performance and long-term durability are essential.