Norton Rixson Floor Closer Bot...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$211.28
$61.18
Norton Rixson Floor Closer Bottom Arm Assembly for 20, 27, 51 Series - Heavy-Duty Commercial Grade

Norton Rixson Floor Closer Bottom Arm Assembly for 20, 27, 51 Series - Heavy-Duty Commercial Grade

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Model: 252050R-612
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$211.28
$61.18
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Norton Rixson Floor Closer Bottom Arm Assembly for 20, 27, 51 Series - Heavy-Duty Commercial Grade

Professional Floor Closer Arm Pack for Commercial Applications

The Norton Rixson 252050R Floor Closer Arm Pack delivers precision-engineered performance for 20, 27, and 51 Series floor closers. This heavy-duty bottom arm assembly features premium-grade steel construction with architectural finishes including 626 (Satin Chrome) and 613 (Oil-Rubbed Bronze). ANSI/BHMA A156.4 Grade 1 certified for commercial applications, this arm pack ensures reliable door control in high-traffic environments.

Professional Features & Benefits

  • Series Compatibility: Specifically designed for Norton Rixson 20, 27, and 51 Series floor closers for versatile installation options.
  • Heavy-Duty Construction: Premium-grade steel and stainless steel materials provide exceptional durability for commercial applications.
  • Grade 1 Performance: ANSI/BHMA A156.4 Grade 1 certification ensures superior performance standards for high-traffic commercial use.
  • Architectural Finishes: Available in 626 (Satin Chrome), 613 (Oil-Rubbed Bronze), and other architectural finishes to match commercial hardware standards.
  • Complete Assembly: Includes essential arm components and hardware for quick and secure installation with proper alignment.
  • High-Traffic Rating: Engineered for frequent daily use in demanding commercial and institutional environments.
  • Universal Door Compatibility: Suitable for wood, metal, and select glass door configurations in various architectural settings.
  • Manufacturer Warranty: 2 Year Limited warranty for added confidence and protection.

Technical Specifications

  • ANSI/BHMA: ANSI/BHMA A156.4, Grade 1
  • Commercial/Residential: Commercial
  • Cover Type: Cast iron cement case
  • Department: Door Hardware
  • Door Swing: Single Acting
  • Duty Level: Heavy Duty
  • Grade: Grade 1
  • Hold Open Feature: No
  • Product Group: Door Controls
  • Product Subgroup: Door Closers - Floor
  • Product Type: Floor Door Closers
  • Series: SEC27 Series
  • Subcategory: Specialty Closers
  • Traffic Rating: High Traffic
  • Warranty: 2 Year Limited

Installation & Operation

This arm assembly is designed for use with compatible Norton Rixson floor closers. Refer to the parent floor closer installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation and verify proper alignment for optimal door control performance.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Architectural and Institutional Buildings

Why Choose Norton Rixson Quality?

Norton Rixson floor closer components deliver professional-grade reliability with heavy-duty steel construction and ANSI/BHMA A156.4 Grade 1 certification for demanding commercial applications. 2 Year Limited warranty provides added confidence for high-traffic installations. Engineered for demanding commercial applications where dependable door control performance is essential.

Manufacturer Resources

Product Specs

Subcategory:
Floor Closers
Series:
SEC27 Series
Grade:
Grade 1
Warranty:
2 Year Limited
Door Swing:
Single Acting
Traffic Rating:
High Traffic
ANSI/BHMA:
ANSI/BHMA A156.4, Grade 1
Product Group:
Door Controls
Product Subgroup:
Door Closers - Floor
Product Type:
Floor Door Closers
Duty Level:
Heavy Duty
Commercial/Residential:
Commercial
Cover Type:
Cast iron cement case
Hold Open Feature:
No
Department:
Door Hardware
Product Category:
Door Controls

Norton Rixson 252050R-612 – Frequently Asked Questions

1) Is this the whole floor closer or just the arm?
Just the bottom arm assembly. It is a replacement arm pack with the arm components and mounting hardware, intended to be fitted to a Norton Rixson 20, 27 or 51 Series closer body that is already in the floor. If you need the closer itself, you are looking for the closer body and cement case, not this part.
2) Is this arm rated for a high-traffic commercial entrance?
Yes. It carries ANSI/BHMA A156.4 Grade 1, is classed heavy duty, and is rated for high traffic commercial use. Grade 1 is the top performance grade under A156.4 for door controls, which is what a school, hospital or office lobby entrance normally gets specified to.
3) Can a Dorma BTS80 or BTS75V floor closer be used to replace the Norton Rixson 252050R bottom arm assembly?
No. The Norton Rixson 252050R is a bottom arm assembly - the arm hardware that ties the door to a Norton Rixson 20, 27 or 51 Series floor closer - not a closer itself. The Dormakaba BTS80 and BTS75V are floor closer bodies, sold as body only, and the BTS75V ships with its cement case and less spindle. They are complete closer mechanisms for a new or fully replaced installation, not arm components, and they carry their own Dormakaba arm and spindle hardware rather than accepting a Rixson arm. If the existing Rixson closer body is sound and only the arm is worn, the 252050R is the part that addresses it.
4) The floor closer itself is failing, not just the arm - what full floor closer can be specified instead of ordering the Rixson 252050R arm pack?
When the closer body is the problem, an arm pack will not correct it. The Dormakaba BTS75V is a Grade 1 floor closer body supplied with a cement case and less spindle, in an NHO non-hold-open function. The Dormakaba BTS80 is a heavy duty concealed floor closer body. Both are complete closer mechanisms rather than arm hardware. Note that the BTS75V ships less spindle, so the spindle is specified separately with that unit, and a new closer body changes the floor prep and the arm hardware the opening will use.
5) Can I use this arm on a double-acting center-hung door?
The application here is single acting. The arm pack is catalogued for single acting floor closer service, so a double-acting door that swings both ways is a different arm setup. Confirm your closer body's swing before ordering the arm.
6) Does this Norton Rixson arm pack give me a hold-open?
No hold-open. The 252050R arm assembly is a non hold open part, so the door closes fully every cycle. If the opening needs the door to stand open, that function comes from the closer body specification, not from swapping this arm.
7) Does the Rixson 252050R arm assembly provide a hold-open function, and how does that compare to the Dorma alternatives?
The Norton Rixson 252050R bottom arm assembly is a non hold open component - it does not add a hold-open function to the opening. The Dormakaba BTS75V is likewise an NHO non-hold-open floor closer. For an opening that must stand open, hold-open has to come from the closer body's function, not from swapping the bottom arm.
8) Is the Rixson 252050R arm assembly suitable for a double-acting center-hung opening?
The Norton Rixson 252050R bottom arm assembly is specified for single acting door swing and pairs with 20, 27 and 51 Series floor closers, carrying an ANSI/BHMA A156.4 Grade 1 rating for high traffic commercial use. For a double-acting opening, confirm the closer body's swing before ordering arm hardware - the arm must match the swing the closer is set up for, and a Grade 1 body such as the Dormakaba BTS75V is a separate closer decision rather than an arm swap.
9) What finish does the Norton Rixson 252050R bottom arm come in?
612 Satin Bronze is the finish offered on the arm assembly. If your existing floor closer hardware is 626 satin chrome or 613 oil-rubbed bronze, the arm will not match visually, though it fits and functions the same.
10) What kind of floor box does a Norton Rixson closer using this arm sit in?
A cast iron cement case is the housing type for these floor closers. That case is poured into the floor slab under the door, and it is the part you generally do not disturb when replacing wear parts like the bottom arm. If you are doing new construction rather than a repair, the cement case has to be set before the slab goes down.
How fast can I get the Norton Rixson 252050R-612 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Norton Rixson 252050R-612 come with a warranty?
Absolutely. The Norton Rixson 252050R-612 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Norton Rixson 252050R-612?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Norton Rixson 252050R-612 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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