New from Adams Rite: The UltraLine Electric Strike

Because the electric strike's locking mechanism tilts, the UltraLine 7400 Series can release a door under up to 30 pounds of pre-load


The electric strike was developed in the late 1800's to enable New York apartment dwellers to remotely open the locked common entrance door for their visitors. Each tenant in the building could remotely unlock the entrance door from within his or her unit. Over the years, electric strikes have...


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For the purpose of this article, the 7400 Series sample was installed into a wood jamb using the Major Manufacturing HIT-34 Series router guides for wood doors and jambs, 1/2” two flute up-shear router bit and a 5/8” outside diameter template guide. The Adams Rite 74R1 and 74R2 were installed into an aluminum jamb. As an alternative, the electric strike preparation can be completed using a sharp chisel and hammer.

We started with a wood jamb prepped to accommodate a 4-7/8” strike plate with dust box. To complete the necessary electric strike prep, we used the Major Manufacturing HIT-34, HIT-34LP1 and the HIT-34SB6. The HIT-34 was mounted onto the jamb following the vertical and horizontal centerlines of the strike opening.

The first step was to rout the opening necessary for the electric strike lip using the HIT-34LP1. Once the jamb had been routed for the lip, the next step was to rout out the opening for the electric strike body using the HIT-34SB6. The final step was to drill a hole for the wiring. For an actual installation, the wiring would have to be run for the power supply and the access mechanisms.

The Adams Rite UltraLine 7400 Series electric strike is designed to accommodate a 5/8” throw latch from a cylindrical key-in-knob/lever lock or Adams Rite 4500, 4700 or 4900 Series locks. The semi-mortised Adams Rite 74R1 electric strike is designed to operate rim mounted exit devices equipped with a 3/4” Pullman bolt. The 74R2 electric strike is designed to operate rim mounted exit devices equipped with a 1/2” Pullman bolt. The Adams Rite semi-mortised electric strikes are designed to work with rim exit devices with or without an auxiliary deadlatch.

The two semi-mortised models have a zinc/aluminum alloy mounting plate whose Ritecoat epoxy standard finishes are designed to match clear, dark bronze anodized or black anodized finishes on narrow stile aluminum glass doors and jambs.

The three faceplate sizes for the 7400 Series electric strikes are: 4-7/8" radiused or square corner, 7-15/16” radiused corner and 10-1/4” radiused corner. Faceplates are available in the Adams Rite finishes.

To accommodate different jamb sizes, the UltraLine has field applied lip extensions, which mount onto the bottom of the electric strike's lip using two Phillips head screws. Lip extension kits are available in various lengths to accommodate the distance at the jamb from the vertical centerline of the door to the edge of the frame.

The 7400 Series Electric Strikes can be installed into wood, hollow metal or aluminum jambs. They have a five-year limited warranty.

For more information, contact your local locksmith wholesaler or:

Adams Rite, 260 Santa Fe Street , Pomona , CA 91767 . Telephone: 800-872-3267. Web site: www.adamsrite.com.

Major Manufacturing, 1825 Via Burton , Anaheim , CA 92806 . Telephone: 714-772-5202. Web Site: www.majormfg.com.

 

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