DynaLock 2870 Accessory, Armat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$38.37
DynaLock DynaLock 2870 Accessory, Armature Swivel Extension, 2800 Series DYK-2870

DynaLock 2870 Accessory, Armature Swivel Extension, 2800 Series

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Model: 2870

In Stock (leaves warehouse same day if ordered before 3pm ET)

$38.37
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DynaLock 2800 Series Electromagnetic Door Holders

Model 2870 Accessory, Armature Swivel Extension

DynaLock 2800 Series Electromagnetic Door Holders are designed to hold self-closing fire or smoke barrier doors open until automatically released by fire alarm, smoke detection, or sprinkler systems. They can also be manually controlled wherever instant closing of doors is required for safety or convenience. Each door holder assembly consists of a floor or wall mounted heavy-duty electromagnet, a selfadjusting and pivoting armature, and all necessary mounting hardware. All models are field selectable to operate on 12 VDC, 24 VAC/VDC, or 120 VAC input voltage. Convenient screw terminals are provided for field hook-up. All holder models are UL listed. Optional Extension rods are available, to extend the armature projection, for installations where a wide standoff distance between the electromagnet and armature mounting locations exist. DynaLock 2800 Door Holders each provide 30-45 lbs. of holding force, allowing manual door closure when electromagnets are energized.

Standard Features
• 30-45 Lbs. holding force per door.
• Low power consumption conserves energy, reduces operating costs and extends battery stand-by time.
• Tri-Voltage: 12 VDC, 24 VAC/VDC or 120 VAC/60Hz selectable operation.
• Fail-Safe Operation: Electromagnet releases instantly upon power loss.
• Self-adjusting and pivoting armature assembly.
• Built-in spike suppression protects other solid state components within the system from damage when the door holder is de-energized.
• Heavy-duty die cast metal housings & faceplates. (2806 & 2810 - Stainless steel faceplates)
• Satin Aluminum US28 finish is standard. Optional sprayed finishes available. -Consult Factory- (2806 & 2810 - US32D)
• Lifetime Warranty: Made in the USA by DynaLock, with over 20 years experience in the manufacture of electronic security & access control products.

Accessories - Sold Separately

DynaLock_Corp-2022-A-Catalog_HQ_Print_20211027.pdf

http://www.dynalock.com/

Manufacturer Resources

Product Specs

Subcategory:
Push Buttons
Series:
2800
Product Group:
Electronic Access Controls
Product Subgroup:
Parts and Accessories
Product Type:
Door Armature
Commercial/Residential:
Commercial
Electronic:
Yes
Holding Force:
30-45 lbs.
Warranty:
Lifetime Warranty
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Model:
2870
Product Finish:
Satin Aluminum (US28)
Product Category:
Door Controls
Department:
Door Hardware

DynaLock 2870 – Frequently Asked Questions

1) What is the DynaLock 2870 extension used for on a 2800 Series door holder?
The 2870 is an armature swivel extension for the DynaLock 2800 Series electromagnetic door holders. It extends the armature projection so the magnet and the armature can still meet when there's a wide standoff between where the electromagnet mounts (floor or wall) and where the armature mounts on the door. If your magnet lands flush against the door leaf at its normal projection, you don't need it. It's an accessory sold separately from the holder itself.
2) Do I need a 2870 extension rod, or does the door holder come with everything to mount it?
Each 2800 Series door holder assembly ships with the electromagnet, a self-adjusting pivoting armature, and all necessary mounting hardware. The 2870 extension is only for the case where the gap between the magnet mounting point and the armature mounting point on the door is wider than the standard armature projection covers. Measure that standoff on the actual opening before you add one, because it is an extra line item, not part of the holder.
3) Will a DynaLock 2870 fit any brand of electromagnetic door holder?
No. It's a DynaLock 2800 Series part, sized to that family's armature. Fitting it to another manufacturer's holder isn't something the 2800 Series data supports, so if you're extending the standoff on a non-DynaLock magnetic holder, source the extension from that holder's own line.
4) Does adding a 2870 swivel extension change the holding force of a DynaLock 2800 door holder?
No. DynaLock 2800 Series holders provide 30-45 lbs of holding force per door, and the 2870 is a mechanical extension on the armature side, not a magnet or a coil. Voltage selection stays with the holder as well: those units are field selectable for 12 VDC, 24 VAC/VDC, or 120 VAC.
5) What finish does the DynaLock 2870 armature extension come in?
Satin Aluminum, US28, which is the standard finish across the 2800 Series holders, so the extension matches a standard 2806 or 2810 install. That's the only finish the 2870 is built in. Note the 2806 and 2810 holders themselves carry US32D stainless faceplates, so on those two models the extension won't be an exact finish match to the faceplate.
6) Is the DynaLock 2870 rated for commercial fire door hold-open use?
The 2800 Series door holders it fits are UL listed and are built to hold self-closing fire or smoke barrier doors open until a fire alarm, smoke detection, or sprinkler system releases them. They're fail-safe, so the magnet drops the door the instant power is lost. The 2870 itself is a commercial-grade mechanical accessory in that assembly.
7) Can I order a DynaLock 2870 as a replacement for a damaged armature swivel on an existing door holder?
Yes, the 2870 is stocked as a replacement part for the 2800 Series, so it can go on an existing installed holder rather than only on a new one. The armature side is self-adjusting and pivoting, which is what lets it seat square against the magnet face after a swap.
How fast can I get the DynaLock 2870 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 DynaLock 2870 come with a warranty?
Absolutely. The DynaLock 2870 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 DynaLock 2870?
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 DynaLock 2870 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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