Security Door Controls Blog

Proven Delayed Egress Innovation...

See why our proven Delayed Egress solutions have led the industry since 1995 with the most choices and customization available. Also, learn why SDC has been the premier manufacturer of popular electrified access control hardware like bolt locks, strikes, EMLocks® and egress devices - all Designed, Engineered and Built in America since 1972, while most of our larger competitors manufacture overseas.

Low Energy Swing Door Operators

SDC’s EntryControl™ AUTO series low energy swing door operator with built-in 1 amp+ power supply provides the ability to power motorized electric latch retraction without a separate power supply.

Designed for low-power retrofits of any building entrance with an exit device, SDC operators feature fast, one-man installation time and help meet US and Canadian disability compliance for door installation in retail storefronts, office buildings, campuses and healthcare facilities. With single button setup, self-tuning, self-learning and onboard lock sequencing capabilities, SDC operators integrate easily with popular access and egress control hardware. 

See these selected 1st quarter highlights from our robust toolbox of over 35,000 access + egress control components...

... all designed, engineered and built in America while most of our larger competitors manufacture overseas.

Since 1972, SDC has manufactured popular electrified access control hardware like bolt locks, strikes, EMLocks® and egress devices in America while most of our larger competitors manufacture overseas. Designed, engineered and built in America means SDC products are readily available with standard one week lead times for most products.

With a robust toolbox of over 35,000 access and egress control components, SDC’s code compliant products form turnkey solutions for almost any door opening imagined.

Since 1972 SDC products have been designed, engineered and built in America while most of our larger competitors manufacture overseas. With a robust toolbox of over 35,000 access & egress control components at your fingertips, you can assemble turnkey solutions to address both market-specific and application-specific requirements for almost any door opening imagined. 

Electric Latch Retraction (ELR)

With a visually appealing and functional design, SDC Door Prop Alarms are compatible with all access control systems, but can also function as a stand-alone solution. Now you can support positive access control and security behavior at any facility.

"Bringing Electronics to the Door"

 How you upgrade the door is key to minimizing liability and maximizing profit potential.

Volumes have been written and various training courses designed to educate security pros about the proper ways to convert door openings to electronic access control (EAC). This overview is a short summary of recommendations to consider when upgrading any door from mechanical to electronic.

Visit the article to read more!

SDC's UniFLEX™ electric strike products feature an interchangeable faceplate design.

Why should you care? The interchangeable faceplate design allows for these strikes to meet a variety of applications. Simply change the faceplate to meet your specific needs!

SDC's 55 series and 45 series electric strikes are available in a variety of configurations to accommodate several types of mechanical locksets and door and frame styles - as well as failsafe and failsecure applications.

SDC’s 55 series 3/4” latchbolt electric strikes are heavy duty. They are designed for installation in hollow metal frames for access control of cylindrical locksets, mortise locksets with or without deadbolts and mortise exit devices. 55 series strikes accept 3/4” throw latchbolts and up to 1” throw deadbolts. The choice of six application faceplates eliminates the need for centerline relocation, making them ideal for new or retrofit, high security access control applications.

SDC’s 45 series 5/8” latchbolt electric strikes are centerline latch entry strikes designed for use with cylindrical locksets and mortise locksets without deadbolt for both metal and wood frames. 45 series strikes accept 5/8” throw latchbolts or up to ¾” throw latchbolts with 1/8” door gap. Centerline latch entry strikes require the latch to enter at the strike “centerline” located exactly between the top and bottom of the strike faceplate.

As an additional benefit, we have created all-in-one part numbers that come with the electric strike and three faceplates for the most common applications.

Check out our new Electric Strikes page for more information!