BEST HD8000 Series Heavy Duty Surface Mounted Door Closer with Grade 1 Certification

BEST HD8000 Series Heavy Duty Surface Mounted Door Closer with Grade 1 Certification

Professional Heavy-Duty Door Control Solution

The BEST HD8000 Series Heavy Duty Surface Mounted Door Closer delivers Grade 1 certified performance for demanding commercial applications. Designed for doors up to 48" wide interior (42" wide exterior) and up to 180 lb, this hydraulic closer features adjustable spring sizes 1-6 with corrosion-resistant aluminum housing and hardened pinion/piston construction. ANSI/BHMA A156.4 Grade 1 certified and ADA compliant, the HD8000 provides reliable door control in high-traffic environments.

Professional Features & Benefits

• Door Compatibility: Accommodates doors up to 48" wide interior (42" wide exterior) and up to 180 lb for versatile commercial applications.
• Adjustable Spring Power: Fully adjustable spring sizes 1-6 with Size 1 (5 lb opening force) meeting interior barrier-free ADA requirements.
• Heavy-Duty Construction: Corrosion-resistant aluminum housing with hardened pinion and piston for durability in high-use applications.
• Backcheck Protection: Standard backcheck valve provides adjustable-intensity hydraulic cushioning to prevent uncontrolled door opening and protect door and frame.
• Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 certified with UL and CUL listings for professional compliance.
• Versatile Mounting Options: Non-handed design supports regular, top jamb, and parallel arm applications with standard components included.
• Advanced Valve Control: Full adjustment using BC, Sweep and Latch valves with tamper-resistant hex key adjustments.
• Specialty Arm Compatibility: Available with more than 30 specialty function arms interchangeable across most surface closer models.

Technical Specifications

• Commercial/Residential: Commercial
• Delay Function: Yes
• Department: Door Hardware
• Duty Level: Heavy Duty
• Fasteners: Self-Drilling, Self-Tapping, Thru Bolts 1-3/4" Door With Machine Screws
• Function Description: Electrically Locked
• Grade: Grade 1
• Product Category: Door Controls
• Product Group: Door Controls
• Product Subgroup: Door Closers - Surface Mounted
• Product Type: Surface Mounted Door Closers
• Series: HD8000 Series
• Subcategory: Surface Mounted

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, weight capacity up to 180 lb, and width up to 48" interior applications.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for regular, top jamb, or parallel arm configurations.
3. Prepare door and frame by drilling required holes using provided self-drilling and self-tapping fasteners for 1-3/4" thick doors or machine screws as appropriate.
4. Install all mounting hardware and secure the closer to door and frame per manufacturer torque specifications using standard components for selected mounting configuration.
5. Adjust spring power (sizes 1-6), backcheck valve, sweep valve, and latch valve for proper door control and ADA compliance where required.
6. Test closer operation to verify proper function including backcheck protection and make final valve adjustments using tamper-resistant hex key tools. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Educational Facilities and Universities
• Healthcare Institutions
• Government Offices and Municipal Buildings
• Transportation Facilities and Airports
• Commercial Office Buildings
• High-Traffic Retail Establishments
• Industrial and Warehouse Facilities

Delayed Action Option

Optional Delayed Action valve available to delay door closing, allowing extra time for passage through the opening. Advanced Variable Backcheck (AVB) option maintains effective backcheck range on parallel arm applications with valve accessible while closer is installed.

Why Choose BEST Quality?

BEST HD8000 Series door closers deliver professional-grade reliability with corrosion-resistant aluminum housing and hardened pinion/piston construction rated for heavy-duty commercial applications. Grade 1 certification ensures compliance with ANSI/BHMA A156.4 standards while ADA compliance provides barrier-free accessibility. Engineered for demanding high-traffic environments where dependable door control and building security are essential.