Cal-Royal CR801/CR801S Grade 1 Hydraulic Door Closer Series with Adjustable Back-CheckThe Cal-Royal CR801/CR801S is a heavy-duty hydraulic door closer series engineered to ANSI A156.4 Grade 1 standards and UL Listed for fire door assemblies. Designed as a non-handed, universal application closer for standard, top jamb, or parallel arm installation, this series is non-sized with 1 thru 6 adjustability and a factory preset of Size 3, accommodating door weights from 30-260 lbs across all models. Built for office buildings, shopping centers, and other commercial buildings, this full-feature multi-size commercial door closer delivers extra smooth action via a heavy-duty lever arm.Key FeaturesUniversal Sizing: Non-sized closer adjustable 1 thru 6, factory preset at Size 3, for accommodating a wide range of door types and applications.Door Weight Capacity: Rated for door weights of 30-260 lbs across all models for versatile commercial use.Adjustable Back-Check Function: Standard back-check protects the door and frame from damage caused by forceful opening.Dual Regulating Valves: Adjustable closing and latching speed controlled by two separate regulating valves for precise, tunable door operation.Universal Installation: Non-handed design supports standard, top jamb, or parallel arm mounting configurations.Standard Cover Options: CR801 includes a Standard Full Plastic Cover, while CR801S includes a Standard Slim Plastic Cover, both with sex bolts and screws for secure, finished installation.Optional Adjustable Delayed Action (DA): Factory preset at approximately 20 seconds between 70 and 0, with delay time easily adjustable up to 1 minute.Optional Barrier-Free (BF) Configuration: Meets ADA regulation with reduced spring power in Sizes 1 thru 6, providing easier opening for handicapped or elderly users.Certifications & ComplianceANSI A156.4 Grade 1UL Listed for Fire Door AssembliesBarrier-Free (BF) option meets ADA regulationTechnical SpecificationsSubcategory: Surface MountedProduct Group: Door ControlsProduct Subgroup: Door Closers – Surface MountedProduct Type: Surface Mounted Door ClosersProduct Category: Door ControlsDepartment: Door HardwareTypical ApplicationsCommercial Office BuildingsShopping Centers and Retail EstablishmentsEducational FacilitiesHealthcare InstitutionsGovernment and Municipal BuildingsMulti-Tenant Residential PropertiesIndustrial and Warehouse FacilitiesWhy Cal-Royal CR801?Cal-Royal CR801/CR801S door closers deliver professional-grade reliability, meeting the highest industry standards with a Grade 1 rating and UL Listing for fire door assemblies. With a heavy-duty lever arm, dual regulating valves for precise speed control, and optional Delayed Action or Barrier-Free configurations, this series is engineered for demanding commercial applications where dependable, smooth door operation is essential.