Norton Rixson HM27 Series Heavy Duty Floor Closer with 3/4" Offset for Hollow Metal Doors up to 250 lbs

Norton Rixson HM27 Series Heavy Duty Floor Closer with 3/4" Offset for Hollow Metal Doors up to 250 lbs

Professional Grade Floor Closer for Commercial Hollow Metal Door Applications

The Norton Rixson HM27 Series is a heavy-duty 3/4" offset-hung floor closer engineered for 1-3/4" hollow metal door and frame installations. Designed to support doors weighing up to 250 lbs with maximum door width up to 4'0" (1219mm), this Grade 1 certified closer features a robust Cycolac rust-proof cement case construction. The unit includes three special steel 4-1/2" ball bearing standard weight hinges with 3/4" offset and provides built-in positive dead stop functionality with options for 85°, 90°, or 95° opening degrees.

Professional Features & Benefits

• Heavy-Duty Door Support: Supports doors weighing up to 250 lbs with maximum door width up to 4'0" (1219mm) for demanding commercial applications.
• Precision Offset Design: 3/4" offset-hung configuration designed specifically for 1-3/4" hollow metal doors and frames with standard weight hinge preparation.
• Multi-Valve Control System: Separate independent valves for closing speed, latch speed, and backcheck provide precision adjustment and enhanced operational control.
• Built-In Dead Stop Protection: Positive dead stop prevents doors from swinging beyond the desired opening degree with options for 85°, 90°, or 95° maximum swing.
• Robust Construction: Cycolac rust-proof cement case with heavy-duty internal components engineered for long life and consistent operation in interior or exterior applications.
• Complete Hardware Package: Includes three special steel 4-1/2" ball bearing standard weight hinges with 3/4" offset plus surface mounted bottom arm with thru-bolts.
• Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 certified for commercial applications with UL Listed options available (F prefix models).
• Manufacturer Warranty: 10 Year Limited warranty for added confidence and protection in commercial installations.

Technical Specifications

• ANSI/BHMA: ANSI/BHMA A156.4, Grade 1
• Commercial/Residential: Commercial
• Cover Type: Cycolac, rust-proof cement case
• Delay Function: Yes
• Department: Door Hardware
• Door Swing: Single Acting
• Door Weight: 250 lbs.
• Duty Level: Heavy Duty
• Grade: Grade 1
• Hang Type: Offset Hung
• Hold Open Feature: No
• Mounting Method: Offset
• Product Category: Door Controls
• Product Group: Door Controls
• Product Model: HM27N
• Product Subgroup: Door Closers - Floor
• Product Type: Floor Door Closers
• Series: HM27 Series
• Subcategory: Floor Closers
• Warranty: 10 Year Limited

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including 1-3/4" hollow metal door thickness and standard weight 4-1/2" hinge preparation compatibility.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on floor and door surfaces for the 3/4" offset configuration.
3. Prepare floor installation location by drilling required holes for floor plate or threshold mounting as specified in manufacturer instructions.
4. Install the three included special steel 4-1/2" ball bearing hinges with 3/4" offset per manufacturer torque specifications.
5. Mount the floor closer unit and connect the surface mounted bottom arm with thru-bolts ensuring proper alignment with door swing path.
6. Adjust the separate independent valves for closing speed, latch speed, and backcheck to achieve desired door operation and set dead stop to specified degree (85°, 90°, or 95°).
7. Test door operation throughout full range of motion to verify proper function 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
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Norton Rixson Quality?

Norton Rixson HM27 Series floor closers deliver professional-grade reliability with heavy-duty construction featuring robust Cycolac rust-proof cement case and precision-engineered internal components. ANSI/BHMA A156.4 Grade 1 certification ensures commercial-grade performance, while the 10 Year Limited warranty provides long-term protection. Engineered for demanding commercial applications where dependable door control and structural support are essential.