Norton Rixson 9ADJ Series Checkmate Heavy Duty Adjustable Surface Mount Door Stop and Holder with 110° Opening

Norton Rixson 9ADJ Series Checkmate Heavy Duty Adjustable Surface Mount Door Stop and Holder with 110° Opening

Professional Heavy-Duty Door Control Solution

The Norton Rixson 9ADJ Series Checkmate is a heavy-duty, adjustable, surface-mounted door stop and holder engineered for high-traffic, high-abuse commercial and institutional environments. This Grade 1 certified overhead stop features a 110° maximum opening (105° for center hung 30-36" doors), 1-3/4" minimum door thickness compatibility, and a 1-3/16" square channel construction. The adjustable slide track arm design provides reliable stopping and holding functionality with a heavy shock absorber spring that offers 5-7 degrees compression before dead stop.

Professional Features & Benefits

• Adjustable Opening Control: 110° maximum opening (105° for center hung 30-36" doors) with fully adjustable degree of opening that can be adapted to changing needs.
• Heavy-Duty Construction: Grade 1 certified design with 1-3/16" square channel and durable slider cam and shock block for demanding commercial applications.
• Advanced Shock Absorption: Heavy shock absorber spring provides 5-7 degrees compression before dead stop for smooth, controlled door operation.
• Door Compatibility: Designed for 1-3/4" minimum door thickness on interior or exterior single acting doors with versatile mounting options.
• Dual Functionality: Combined hold open and stop functions provide comprehensive door control in a single unit.
• Security Hardware Options: Torx screws available for exposed fasteners in high security areas, with complete screw packet including thru-bolts for door plus wood and machine screws for frame.
• Professional Certifications: ANSI/BHMA A156.8 Grade 1 certified with UL listed stop functions for code compliance and reliability assurance.
• Manufacturer Warranty: 2-year limited warranty for added confidence and protection.

Technical Specifications

• ANSI/BHMA: Certain Models ANSI/BHMA A156.8, Grade 1 Certified
• Arm Specification: Slide Track
• Commercial/Residential: Commercial
• Department: Door Hardware
• Door Swing: Single Acting
• Duty Level: Heavy Duty
• Fasteners: Torx Screws Optional
• Grade: Grade 1
• Hold Open Feature: Yes
• Mounting Method: Surface
• Product Category: Door Controls
• Product Group: Door Controls
• Product Subgroup: Overhead Stops and Holders
• Product Type: Overhead Stops and Holders - Surface Mount
• Series: 9ADJ Series
• Subcategory: Surface
• Warranty: 2 Year Limited

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" minimum), stile width, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware using the complete screw packet with thru-bolts for door, plus wood and machine screws for frame per manufacturer torque specifications.
5. Adjust the slide track arm for desired opening angle up to 110° maximum (105° for center hung 30-36" doors) and verify proper alignment and smooth operation.
6. Test device operation to verify proper hold open and stop functions, shock absorption performance, and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Government and Municipal Buildings
• Industrial and Warehouse Facilities
• High-Security Areas
• Multi-Tenant Residential Properties

Why Choose Norton Rixson Quality?

Norton Rixson 9ADJ Series door stops deliver professional-grade reliability with heavy-duty construction and Grade 1 certification for demanding commercial applications. The 2-year limited warranty and UL listed stop functions ensure dependable performance in high-traffic, high-abuse environments. Engineered with advanced shock absorption and adjustable opening control where consistent door management is essential.