Cal-Royal 501502 501/502 Hold-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$32.88

Cal-Royal 501502 501/502 Hold-Open Arm & Parallel Bracket with Forged Steel Construction

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Model: 501 / 502-DURO
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$32.88
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Cal-Royal 501/502 Hold-Open Arm & Parallel Bracket with Forged Steel Construction

The Cal-Royal 501/502 Hold-Open Arm & Parallel Bracket is a surface-mounted door control accessory engineered for commercial door closer applications. Built from forged steel for long-term durability, this component is non-handed, making it a versatile fit for a wide range of door configurations without the need for handing-specific parts. Designed as a compatible replacement or upgrade part within the 500 series door closer family, it provides reliable hold-open functionality for commercial doors that require the door to remain open during high-traffic periods or specific operational needs.

Key Features

  • Heavy-Duty Construction: Forged steel construction provides exceptional durability and long-term structural integrity for demanding commercial applications.
  • Hold-Open Functionality: Combined arm and parallel bracket assembly allows the door closer to hold the door open as needed, improving traffic flow and accessibility.
  • Non-Handed Design: A single configuration fits either handing, simplifying inventory, ordering, and installation for facility maintenance teams.
  • Parallel Arm Mounting: Parallel bracket design is intended for surface-mounted door closer installations, supporting a clean, low-profile appearance at the head of the frame.
  • Commercial-Grade Component: Purpose-built as a parts and accessory item within the Door Controls category for compatibility with 500-series style closer arm applications.

Technical Specifications

  • Subcategory: Surface Mounted
  • Product Group: Door Controls
  • Product Subgroup: Parts and Accessories
  • Product Type: Parts and Accessories
  • Commercial/Residential: Commercial
  • Product Model: 500PBF
  • Product Category: Door Controls
  • Department: Door Hardware

Typical Applications

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

Why Cal-Royal 501/502?

Cal-Royal 501/502 door control components are built from forged steel to deliver dependable, professional-grade performance for commercial door closer installations. As a non-handed part, it simplifies specification and stocking while maintaining the structural integrity facilities managers expect from surface-mounted door hardware. Engineered as part of the broader Door Controls category, it supports consistent, reliable hold-open operation across demanding commercial environments.

Product Specs

Subcategory:
Surface Mounted
Product Group:
Door Controls
Product Subgroup:
Parts and Accessories
Product Type:
Parts and Accessories
Commercial/Residential:
Commercial
Product Model:
500PBF
Product Category:
Door Controls
Department:
Door Hardware

Cal-Royal 501 / 502-DURO – Frequently Asked Questions

1) Will the Cal-Royal 501/502 hold-open arm work on a left hand door and a right hand door?
Non-handed, so one part covers both handings. That's the practical benefit for a maintenance shop stocking closers across a building: you keep one arm assembly on the shelf instead of a left and a right, and the installer doesn't have to check the swing before opening the box. Cal-Royal builds the 501/502 arm and parallel bracket as a single configuration for either handing.
2) Is the Cal-Royal 501/502 arm for parallel arm mounting or regular arm mounting?
Parallel arm. The 501/502 comes as a combined arm and parallel bracket, which mounts the closer on the pull side of the door with the arm running along the face of the door under the frame head. If your closer is mounted regular arm on the hinge side, or top jamb, this bracket is not the piece you want. Parallel arm is the usual choice on doors where you want the arm tucked flat at the head rather than projecting into the opening.
3) Which Cal-Royal closers does the 501/502 hold-open arm fit?
It's built for the Cal-Royal 500 series surface closers, carried under model designation 500PBF. It is sold as a replacement or upgrade arm within that family, so it's the part to order when a 500 series closer needs a hold-open arm added or a damaged arm swapped out. It is not a universal arm; match it to a 500 series closer body.
4) I need a hold-open arm but my closer is an LCN or a Deltana, not a Cal-Royal. What do I order?
Closer arms aren't cross-brand parts, so a Cal-Royal 500 series arm won't fit another maker's closer. Match the arm to the closer body you have: Deltana's DCHA1050 is the hold open arm for the DC10 closer, and LCN's 4040SEH-3038 hold open track serves the 4000 series. Read the model off the closer body or its cover plate before ordering, because the arm is series-specific every time.
5) What is the closest equivalent to the Cal-Royal 501/502 hold-open arm if the door already has a Deltana DC10 closer on it?
The Deltana DCHA1050 is a hold open arm built for the DC10 door closer series, so it is the arm to order when the body on the door is a DC10. The Cal-Royal 501/502 hold-open arm and parallel bracket is a component within the 500 series closer family and is non-handed, so it fits either handing without a left or right part number. Arms and brackets are closer-family specific, so match the arm to the closer body already mounted at the head of the frame rather than swapping arms between series.
6) Difference between a hold-open arm like the Cal-Royal 501/502 and a hold open track such as the LCN 4040SEH-3038?
The Cal-Royal 501/502 is an arm and parallel bracket assembly, surface mounted, that lets the closer hold the door open during high traffic periods. The LCN 4040SEH-3038 is a hold open track, a door closer accessory in the 4000 Series, so the arm rides in a track along the frame instead of a jointed forearm reaching to a bracket. Both produce hold open, but the mounting hardware and the frame prep are different, so the two are not interchangeable on an existing installation.
7) If the opening must not be held open because it is a fire door, what track replaces a hold-open arm?
The LCN 4040SE-3038 is a standard track for fire and life safety door closers in the 4040SE Series, meaning the door closes on every cycle rather than latching open. The Cal-Royal 501/502 arm and bracket is built specifically to provide hold-open functionality for commercial doors that need to stay open during high traffic periods, which is the opposite behavior. On an opening where the door has to self close, specify the standard track version rather than a hold-open arm.
8) The parallel arm bracket does not clear the reveal on my frame - what else is available?
The Cal-Royal 501/502 parallel bracket is intended for surface-mounted closer installations at the head of the frame. When the reveal is the obstacle, the LCN 1260-30 is a cush shoe support with 3-1/16 inch reveal compatibility, and the LCN 1260-18QF is a quick fix bracket kit for door closers in the 1000 Series. Both are LCN parts and belong on LCN closer bodies, so measure the reveal from the face of the door to the frame stop before selecting the mounting hardware.
9) Does the Cal-Royal 501/502 arm hold the door open by itself, or do I need a separate stop?
The arm and bracket assembly is what gives the closer its hold-open function, so the door stays open where you set it and closes normally when pushed past that point. That's what facilities want for move-in days, deliveries, or a corridor that has to stay open during a rush. Bear in mind a hold-open arm should not go on a fire rated opening unless the closer is a listed hold-open device released by the fire alarm.
10) Is a forged steel closer arm worth it over a cast arm for a high traffic door?
On a door that gets kicked, propped, and slammed all day, the arm is the part that fails first, and the 501/502 is forged steel rather than cast. Forged holds up better to the repeated bending load a parallel arm sees, which is why it's specified for schools, hospitals, retail entries, and warehouse doors. If you're replacing arms more than once on the same opening, the arm material is usually why.
11) What's the difference between a hold-open arm and a cush or stop arm on a parallel arm closer?
They solve different problems. The 501/502 is a hold-open: it keeps the door standing open at a set point. A cushion or stop arm instead builds a stop into the arm so the door cannot swing past a set degree and damage the wall or the closer, which is what the Deltana DCCA4041 cushion arm does for the DC40. If your complaint is doors slamming into a corridor wall, you want a stop or cush arm, not this one. If it's doors being propped with a wedge, the hold-open is the fix.
12) My parallel arm closer bracket is bent but the closer body is fine. Can I just replace the bracket?
Yes, and that's exactly what this part is for. The 501/502 is sold as an arm and parallel bracket assembly for the Cal-Royal 500 series, so a bent bracket or a sprung arm on an existing 500 series closer is a parts swap, not a whole closer replacement. The closer body, its mounting holes, and the door prep stay as they are.
13) Does the Cal-Royal 501/502 hold-open arm suit a floor closer or a concealed closer?
No. This is a surface-mounted component for a surface-applied closer at the head of the frame. A center hung floor closer is a completely different install with the operator set in the floor, like the Norton Rixson 28 Series single acting or the 30 Series double acting units, and those take their own arms and spindles. If your door pivots on a floor closer, an overhead parallel arm assembly has nothing to attach to.
14) Cal-Royal 501/502 versus a cushion arm - do they do the same job?
No. The Deltana DCCA4041 is a cushion arm for the DC40 door closer, a stop-and-cushion style arm that limits how far the door swings and absorbs the shock at the end of the swing. The Cal-Royal 501/502 is a hold-open arm and parallel bracket that keeps the door standing open. If the requirement is to protect the wall and stop the door, the cushion arm answers it; if the requirement is to park the door open, the hold-open arm does.
15) Can a hold-open arm be used on a center hung door with a floor closer?
No. A surface-mounted arm and parallel bracket such as the Cal-Royal 501/502 mounts at the head of the frame and works with a surface closer body. Center hung floor closers are a separate system: the Norton Rixson 28 Series is a center hung single acting heavy duty floor closer rated to 350 lbs door weight, the 328 Series is single acting at 325 lbs, and the 30 Series is double acting at 200 lbs, all Grade 1. Those openings take a bottom arm and pivot hardware, not a surface parallel arm.
16) Is the Dorma 15323 offset bottom arm a substitute for a parallel arm and bracket?
It is a different part for a different mounting. The Dorma 15323 is a 1-1/2 inch offset bottom arm with cover, standard duty, with a fire rating of no, and a bottom arm ties a floor or pivot closer to the bottom rail of the door. The Cal-Royal 501/502 is a hold-open arm with a parallel bracket for surface-mounted closers at the head of the frame. The two attach at opposite ends of the door and are not alternatives to each other.
17) Which finishes does the Cal-Royal 501/502 arm come in, and how do I match it on a job that also uses floor closers?
The Cal-Royal 501/502 hold-open arm and parallel bracket is offered in Aluminum and Duronodic, the two common architectural finishes for surface door control hardware, and it is forged steel and non-handed so a single part number covers both hands. On a job that mixes surface closers with center hung floor closers such as the Norton Rixson 40 Series heavy duty center hung floor closer with cement case, only the exposed arm and cover need to match visually, since the floor closer body sits in the case below the threshold.
How fast can I get the Cal-Royal 501 / 502-DURO 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 Cal-Royal 501 / 502-DURO come with a warranty?
Absolutely. The Cal-Royal 501 / 502-DURO 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 Cal-Royal 501 / 502-DURO?
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
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