Southco

Go Wireless: Actuate Your Southco Locks with Remote Control

Wednesday, May 9, 2012 by Rachel Pilgren

Now you can wirelessly actuate Southco locks with ease with our new EA-R02 RF Remote Control System. The EA-R02 RF offers economical, remote control operation with a key fob, putting access in the palm of your hand.

The EA-R02 RF Remote Control System is an extension of our EA-R01 series, which was constructed for heavy duty and waterproof applications. The EA-R02 RF is Southco's electronic access solution (EAS) designed and constructed for use with light-duty, indoor applications.

Simply press the “lock” or “unlock” button (just like you do with your car’s keyfob) and your Southco lock will respond from approximately 60 feet away.

Like its predecessor, the EA-R02 RF provides convenient, secure access management and eliminates the need to carry numerous mechanical keys. The unit arrives pre-programmed as well, allowing for trouble-free installation and setup.

Do you have an application requiring the EA-R02 RF’s remote control locking availability? Tell us in the comments.

Electronic Access Latching Helps to Deter Theft

Wednesday, April 25, 2012 by Rachel Pilgren

When it comes to locker use, winning the war against theft can be tough. Whether an employer requires its employees to keep their belongings in a locker during their shifts, or a business offers lockers for customer use, security must always be at the forefront of operations. Because even codes to the most sophisticated combination can be cracked and keys can be stolen or copied, locker manufacturers are looking at new ways to deter theft - and many are turning to electronic access solutions.

A locker manufacturer recently approached Southco engineers about specifying a latching system for an upgraded line of lockers designed to protect more valuable belongings in both work and leisure settings, such as expo facilities and athletic clubs. Its engineers were mainly interested in a heavy-duty internal latch to be housed in the locker door, as well as a more unique option for user access than a key or combination lock.

Our engineers recommended the EA-KC2 Membrane Keypad Access Controller and R4-EM Electronic Rotary Latch, which simplify access management with a self-contained unit, meaning no external connections or software are required to program or operate the system.

The Membrane Keypad Controller contains a microprocessor that compares the stored user access codes with what is being entered on the corresponding Membrane Keypad and either grants or denies access. The Controller also provides two outputs for independent control of two separate latches and works with the Membrane Keypad, which can hold 120, four-digit user codes.

The R4-EM Electronic Rotary Latch, which features a secure, concealed electronic release latching solution, can be wired into the Membrane Keypad Access Controller system and when the Controller recognizes the code entered by the user, it will release the R4-EM latch. The user need only push to close the locker door and the latch will re-secure- itself.

How can electronic electronic access solutions enhance your locking applications? Tell us in the comments.

Compact Prox Card Reader Offers Simplified, Keyless Access

Wednesday, April 18, 2012 by Rachel Pilgren

Southco’s EA-P3 Proximity Reader provides convenient, secure access control of electronic locking devices in a compact package. The EA-P3 produces a standard 26 bit Wiegand output and accepts HID 125 kHz prox cards or tags, allowing it to be easily combined with an existing access controller to add additional keyless entry points to existing security systems.

In many equipment security applications, radio-frequency identification (RFID) proximity cards are replacing traditional lock and key applications as a flexible solution to access control needs. Southco’s EA-P3 is a great choice for applications requiring increased security because although the electronic locking system features sophisticated technology, it keeps access management simple and affordable for the operator.

The EA-P3 is easy to install, can be mounted virtually anywhere, and can also be combined with another Southco product – the EA-P1 Pin/Prox Reader – for a complete access control system.

The electronic locking capability of the EA-P3 makes it a practical addition to existing security systems, and is well suited to enclosures, medical and self service applications, secure storage and datacenters.

Interested in learning more about what Southco's Proximity Readers can do for your application? Email us!

Southco Sponsors Award-Winning FIRST FRC Team

Wednesday, April 11, 2012 by Rachel Pilgren

The Southco Honeoye Falls Facility is nurturing the next generation of engineers through the sponsorship of a team of local high-school students, who not only competed in this year’s regional FIRST Robotics Competition (FRC), but took the top honor against 41 teams.

FIRST (For Inspiration and Recognition of Science and Technology) was founded in 1989 to inspire young people's interest and participation in science and technology. FIRST sponsors events for K-12 students which are designed to help them discover and develop a passion for science, engineering, technology and math.

As the main focus of this year’s FRC, Honeoye’s team, the SUITS (Students Utilizing Ingenuity Technology and Science) created a robot that they used to participate in this year’s tournament, which required them to compete against other teams by executing a series of tasks for points.

The robot, which was designed and completely built within six weeks according to strict FIRST deadlines, also helped the team to secure the Rookie Highest Seed Award in addition to their victory at the Finger Lakes Regional Competition at Rochester Institute of Technology (RIT) in March.

Building a robot in only six weeks was no easy task. However, when it comes to design, Southco’s engineers are always up for a challenge. It’s only natural that Honeoye Falls’ own Rick Langkamp, Manager of Manufacturing Technology and New Product Development, would jump at the opportunity to mentor the SUITS and help them design, execute and test a robot in such a short time.

“It’s a very aggressive timeframe,” said Langkamp, who has over 28 years of experience with Southco. “It would be a stretch even if I brought it in here as a regular project.”

Langkamp is no stranger to FIRST – his own son has participated in the FIRST LEGO-League, a category for kids grades 4-8. Langkamps’s main focus as a mentor for the SUITS team is assisting them in the programming for the control system of the robot.

Langkamp, who has been with Southco since he was an engineering co-op, works primarily with mechanical and electronic controls and sensors, focusing on new product development and new manufacturing processes. He was impressed with the quality and sophistication of the software and full kit of electronic parts available to his team, which are provided by FIRST sponsors and are available to them for a full 12 months.

“We never had access to this cool stuff when I was a kid,” said Langkamp. “Imagine the potential of kids who come up through the program and what they could contribute to the future of engineering,” he said.

Southco’s products played a key role in the development of the team’s robot, said Langkamp. Scrap metal from Southco’s production facility, fasteners, latching hardware and other machined parts from the Honeoye Falls facility were used in the robot’s construction. Southco’s Information Technology (IT) team even donated several old laptops for the team to use when programming the robot.

The SUITS’ robot has a variety of advanced features and is designed to be as close to a real engineering experience as possible. Langkamp said that the robot-building process offered by FIRST is unique in that:

The frame is typically built from aluminum channel , similar to 80/20 aluminum.
A programmable logic controller from National instruments is included in the control system (These are programmed in Labview, Java, or C++).
A wireless network access point is incorporated, as all robots are required to run on a wireless network during the competition.
Electronics includes variable speed motors , switches, solenoids, servomechanisms and lighting.
Many robots incorporate a camera and vision system as well as ultrasonic sensors, gyros and accelerometers.
Teams also have the option of using a pneumatic compressor and air cylinders.
It is up to each FRC team to decide how they want to design their robot using Autocad, Pro- E (CREO) and other software.
The teams are held to a budget of $3200, with a maximum allowed robot weight of 120 lbs.

In addition to the robot design, FRC teams are challenged to raise funds, design a team “brand” and work together as a team. With the help of their team leader, Mike Shaughnessy, the SUITS have raised over $21K to pay for their entry fees and travel costs. The SUITS also sell LED light bulbs to support their team.

“It’s just a great program,” said Langkamp. “There is something for everyone because kids involved can choose to do marketing, fundraising and finance, not just engineering.”

Look for the SUITS’ logo, a black shirt with white tie, at the FIRST Championship competition, which will be hosted at the Edward Jones Dome in St. Louis, Missouri on April 25-28. The SUITS (Team #3951) will compete against other regional winners as they contend for the top spot in the national competition.

Heavy-duty Latches Ensure Secure Storage on the Road

Wednesday, March 28, 2012 by Daniel McCourt

The utility van: mobile office for the construction industry. For contractors working out of their vans, storage plays a key role in their daily operations. If tools and materials are not securely stored, contractors could face damage to their van and tools, as well as potential injury caused by unsecured objects.

A vehicle utility contractor for a large electricity company recently approached Southco engineers regarding a latching system to secure wall-mounted storage compartments and cabinets inside its fleet of utility service vans. The company had received reports from its employees that the existing hardware was sometimes unpredictable in its operation, resulting in tools popping out of boxes while the vehicle was in motion.

The contractor was seeking a strong, durable latch that would stay closed when disturbed by bumps

and turns while the van was in motion, as well as exposure to changing weather conditions, since the rear door of the van would be frequently opened and closed by the technician when on the job.

Our engineers recommended Southco’s Stainless Steel R4-10 Rotary Latch, which brings corrosion-resistant strength to a proven latching

solution that delivers long lasting durability and security to heavy-duty

applications. For this application, our engineers recommended combining the R4-10 with Southco’s AC-70 Single Point Paddle Actuator for a complete latching solution. When installed, the R4-10 is linked to the Actuator by a cable, which triggers the latch when the Actuator is engaged. Additionally, the AC-70’s low-protrusion, front-mount design allows for easy operation by the end user, who need only actuate the paddle with the pull of a finger.

With a simple push-to-close operation, the R4-10’s concealed latch accommodates misalignment between the latch and striker bolt, making it suitable for a wide variety of applications. In gasketed applications, a double stage latching option provides additional security and functionality, allowing the user to push the door once to keep it closed, and push it a second time to securely latch it, preventing a false latching condition which could result in the door opening accidentally.

Are you facing a challenging application that calls for a more robust latching solution or want to know more about our rotary latches or hinges? Tell us in the comments.

Push-to-Close Latching; The Secret of Simple Operation

Thursday, March 15, 2012 by Daniel McCourt

When it comes to convenience, it’s easy to take even the simplest of operations for granted. This week we take a closer look at a simple operation that often goes unnoticed: push-to-close latching.

Push-to-close latching technology is in everything from car doors and glove boxes to storage cabinets and office furniture. Its simple functionality allows us to securely close a panel and not have to worry about having to manually re-latch it.

In a push-to-close application, the cam rotates freely from the "closed”

position as it contacts the frame or keeper, and an integral spring pushes the cam back into the engaged position once the cam clears the keeper. Southco’s E5 Push-to-Close Cam Latch features push-to-close convenience by incorporating a spring-loaded ramped cam or actuator for single or multi-point operation.

Basically it works like this: Think about how often you open and close a cabinet door. Adding our E5 to this application means that when you push the door towards its frame, a ramp-shaped cam rotates as it contacts the frame, the cam then springs back and moves behind the frame to achieve latching.

As with conventional cam latches, the E5 latching mechanism rotates to disengage from the keeper, but once the panel is opened and the cam rotates back to the "closed" position, the ramp-shaped face of the retractable cam functions like a push-to-close mechanism, ensuring safe, trouble-free operation even if the door is shut with the cam in the closed position.

The unsung value that push-to-close operation brings to your application design is paramount. Incorporating an action as simple as not having to manually re-lock a door every time it is closed can bring great value to end users in a wide array of industries.

Is simplicity a priority in your application? Tell us in the comments.

Slide Latching Adds Security and Style to Transom Doors

Tuesday, February 28, 2012 by Daniel McCourt

It’s no secret that yacht design is all about the details. These large luxury vessels are built to complement the luxe tastes of their buyers, with elegant, streamlined designs and top of the line features. However, yacht manufacturers are often tasked with ensuring that a yacht’s components not only look good, but withstand quality performance requirements as well.

A yacht manufacturer recently came to us about upgrading the latching hardware on a transom door that it was installing in a new line of trawler yachts. The manufacturer was not satisfied with the quality of the hardware that came standard with the door, so its engineers were looking for a more dependable, secure latching solution to replace it with.

The manufacturer, however, did not wish to sacrifice the overall aesthetic of the yacht for the sake of functionality, so it specified that any hardware installed must be attractive and complement the yacht’s overall design, as well as all other hardware used throughout.

We suggested Southco’s TM Swim Door Latches, which provide heavy-duty, marine-grade construction suitable for a variety of door thicknesses. The Swim Door Latch features an intuitive operation with push button and turn handle actuation as well as an internal o-ring design that dampens the closing action, providing a smooth end user feel.

Stylish and easy to operate, the Swim Door Latch provides flexibility and functionality for many marine applications, including transom and fly bridge doors, as well as other types of swing doors. Available in 316 stainless steel, these durable latches are resistant to salt spray and the elements.

What challenges have you faced in balancing quality and aesthetics in your yacht design? Tell us in the comments.

“Hooked” on Interior Railway Design Upgrades

Tuesday, February 14, 2012 by Daniel McCourt

“If the cost of gas goes any higher, I’m taking the train.” Sound familiar? It’s no secret that the ever-rising cost of gas is forcing many commuters to abandon their normal car ride to work and opt for public transportation instead. In answer, many railway

companies are taking increased ridership by the horns, and making design upgrades to their heavily used railcars.

We recently had a conversation with an engineer who was tasked with redesigning the interior of a local transit company’s existing railcar. The transit company had requested the engineer to incorporate suggestions obtained through a commuter survey into the design, including improvements to hinges, locking mechanisms embedded in seating. Of the commuters who provided feedback, a significant number were concerned about having a place to hang their coats, bags and personal belongings during overcrowded peak hours.

Specifically, the engineer was seeking a safe way in which to incorporate coat hooks. In the traditional rail car design, a multi-pronged coat hook protruded from the center of the outer seat panel into the walkway, and often into people forced to stand during peak commuting hours. The challenge was replacing this outdated and potentially dangerous design with something that was both safe and functional.

Our experts suggested Southco’s MP Coat Hook, which remains flush when not in use, and deploys an inner latch, releasing pop-out hook with just the push of a button. It’s ability to remain flush when unused frees up more space, allowing for multiple installations should the design require it. The MP is available with several flange shapes with multiple chrome- or brass-plated finishes to match the stylish new interiors of many mass transportation vehicles – including not only railcars, but buses and airplanes as well.

How will the growth of commuting impact mass transit interior design? Or have an application for a compression latch or position contol hinge you would like to discuss? Tell us in the comments.

Multi-Point Latching Goes to Great Lengths for Enclosure Cabinet Security

Thursday, February 2, 2012 by Daniel McCourt

Data center engineers dedicate sizeable amounts of time to designing enclosures, which includes specifying cabinet storage that will ultimately house the complete system. Factors such as size, materials, rack dimensions, security, heating and cooling options and the costs associated are all considered by engineers throughout the design, but when it comes to accessibility, it sometimes isn’t approached until the very end of the design process.

We recently had an engineering firm come to us late in the design process with a need to incorporate a multi-point locking system into a tall, upright enclosure door design. The cabinet required a latch that would securely lock its entire length with only one turn. The firm also requested that the system take up minimal space in the overall cabinet design.

Southco engineers suggested one, three-point H3 Swinghandle Multi-point System to secure

the enclosure door. When installed, the Swinghandle, which nests into its housing with minimal protrusion, sits on the outside of the cabinet door, and pops up to swing smoothly for easy latch actuation. The cam mechanism sits on the inside of the enclosure door, and a series of rods that run up the entire length of the door are activated by a linear actuator, releasing the latch when the Swinghandle is rotated.

Southco’s H3 is available with multiple offset cams, multi-point latching, and numerous locking and non-locking options that simplify cost-effective configuration. Available in lightweight, robust nylon or heavy-duty die-cast, the H3 is suitable for indoor enclosure cabinet applications across industries.

What types of challenges have you experienced in your enclosure design? Or do you have an application question about latches, hinges or captive fasteners? Tell us in the comments.

Reliable latch technology in a lightweight package

Friday, November 18, 2011 by Daniel McCourt

Electronic rotary action latch light duty

It seems like everyone is dieting these days…even our products. The new R4-EM Light Duty Electronic Rotary Latch brings the same proven reliability of the standard steel version but has lost a bit of weight—65% to be exact, thanks to its engineered composite plastic construction. But don’t be misled by the compact package; this latch is big in performance.

A microprocessor control brings energy efficiency, and an integrated mechanical override is included for use should a power failure occur.

Need to know the latch status? The optional microswitch will let you know when the door is locked or unlocked. And if you want to monitor and control complete systems remotely, it’s all possible with this latch.

The R4-EM is simple to use, simple to install and is concealed for hidden access. Add a 12-24 volt DC power supply (and any access control device), and you have a complete electronic access solution.

Visit our website for more information on the entire line of Rotary Latches or any of our other latches, hinges or electronic access solutions.

What do you think of the new R4-EM? Drop us a line.

Innovative Southco Marine Hardware Solutions

Tuesday, November 1, 2011 by Daniel McCourt

The Southco Marine team is happy to invite you to our booth at this year’s METS exhibition between 15-17th of November.

Come and see our Innovative Marine Hardware Products and our extended product offering, and explore how our team can help you with solutions for entry, cabin, and deck applications.

The show will be hosted at the Amsterdam RAI Convention Centre in The Netherlands. For registration details and accommodations visit www.metstrade.com.

We look forward to seeing you!

Welcome!

You will find us at Hall: 3 Booth: 414

Two new actuators, one great list of benefits

Friday, October 21, 2011 by Daniel McCourt

If you’ve ever taken a good look at off-highway equipment that has been left outdoors and exposed to the elements, then you know the damage that is visible from rain, heat and cold. Well, Southco’s new line of actuators are here, and they are as tough as the elements and are designed for entry door applications. The AC-30 and AC-40 are constructed of corrosion resistant materials and can be used in a wide range of outdoor temperatures.

Both actuators work with Southco R4 rotary latches directl

y or can be used with cables and rods for a complete rotary latch system. Your equipment will be secure on the job site or roadside due to the key-locking feature with multiple key codes.

The AC-30’s single hole installation enables effective mounting in restricted spaces, and the AC-40 features a large grip handle and single-motion open feature. With the addition of these new actuators, Southco has an even great line of solutions for your most challenging applications. Tell us about it. Or leave a comment. We love to hear from you.

Ten questions to ask when designing in a hinge

Thursday, October 13, 2011 by Daniel McCourt

Part 10 in a 10-part series on specifying hinges

We spent the last several weeks discussing different factors for specifying hinges. After all, incorporating hinges early into designs helps keep costs down and options open. So here, for your reference, is a quick summary of questions to ask in the early stages of your application. They will save you time, money and maybe even a bit of frustration!

How much load must the hinge withstand? Determine the size, weight, and center of gravity of the door.
How do hinges fit in the overall design? Designing the hinge in early may allow use of an available hinge.
How much space can you afford inside or outside the enclosure? This may help you decide between concealed and externally mounted hinges.
How do you plan to mount or access the door? Door and frame configurations play a critical role!
How far must the door open? Detent and friction hinges will keep a door open without secondary mechanical supports.
Is removing the door a requirement? Lift-off hinges enable fast door removal.
What specifications must the hinge and enclosure meet? Many hinges are certified to meet various industry standard specifications.
How will the hinge be installed? Consider the manufacturing and installation process carefully.
Do you need to meet specific material requirements? Think about environmental conditions the end product may face.
How large a role do aesthetics play in the design? Balance performance needs with style and appearance.

To learn more about any of these topics, please see the past weeks’ blog entries, which discuss each of these questions in greater detail. Or contact us personally. We'd love your feedback and questions.

Hinges and aesthetics

Thursday, September 29, 2011 by Daniel McCourt

Part 9 in a 10-part series on specifying hinges

Okay, so you’re looking to optimize the overall quality and cost effectiveness of your application. When it comes to hinges, it is important to balance performance needs with aesthetic judgment. Looks DO matter and can greatly influence a product’s overall look and perception of quality.

Large, external hinges give an impression of great strength while

concealed hinges can increase security or create a streamlined look. To further enhance an application’s design, we often have the option of customizing plastic and powder-coated hinges to suit specific color specifications. Some hinges even include snap-on covers to conceal mounting hardware and create and more polished appearance. Even the mounting hardware can be concealed by installing the hinge from the back side of the door.

Whether you want polished and sleek or sturdy and strong, there is a hinge that will convey the appearance you seek and contribute to the overall aesthetic of your application.

Next week: Ten questions to ask when designing a hinge

Hinges and Material Requirements

Wednesday, September 21, 2011 by Daniel McCourt

Part 8 in a 10-part series on specifying hinges

There are many factors to consider when selecting a hinge. We have discussed opening angle, frame configuration, industry specs and installation method, among others. But a critical consideration not to be overlooked may seem like the simplest: material.

When deciding between material options, be sure to consider not only the end us

e but also

environmental conditions. Factors from temperature range and chemical exposure to UV radiation and moisture conditions can (and should) influence our choices. As you well know, hinges comes in a variety of materials such as steel, stainless steel, die-cast zinc and engineering plastics. Each of these materials brings with it certain great benefits.

Steel and stainless steel hinges withstand temperature variations, and engineering plastics and stainless steel offer corrosion resistance. Need reduced noise and vibration? Consider a plastic hinge. Whatever your need or application, there is a hinge material perfectly suited to it. Need help finding one? Contact Southco or share your thoughts on this discussion.

Next week: Hinges and aesthetics

Hinges and Installation Method

Friday, September 16, 2011 by Daniel McCourt

Part 7 in a 10-part series on specifying hinges

The method of installation is an often overlooked consideration when selecting a hinge. Manufacturing tolerances in the design and installation process can impact our hinge specifications, especially where aligning the hinges on the door and frame are concerned. Slotted holes may help compensate for manufacturing variations.

An important questions that we have to ask is: Where in the manufacturing process is the hinge installed? This may have a profound impact on hinge selection. It’s helpful to determine whether the leaves will be assembled to the door and frame at the same time or in different locations and assembled later. Mounting methods run the gamut and include screws, studs, rivets, welds and adhesives.

Lastly, you want to determine clearance for any tools needed for installation (as well as the hardware itself). Most of us have found ourselves in this unfortunate situation at least once! So don’t get stuck at the end. Figure this out early and save yourself time and aggravation.

Next week: Hinges and material requirements

Hinges and industry specifications

Monday, August 29, 2011 by Daniel McCourt

Part 6 in a 10-part series on specifying hinges

Selecting the proper hinge can sometimes be more challenging that we might expect. In addition to considering cost, aesthetics, strength requirements and door configurations, we need to also consider any regulations or specifications that might affect our applications.

For example, hinges used on outdoor enclosures housing electronic equipment may be required to meet NEMA and IP standards. Is your application in the food equipment industry? NSF certification imposes stringent guidelines on materials and design.

Specs may require evaluation of an entire system, or hinges may be certified to meet a spec as-is. Either way, you want to select a hinge capable of meeting all product standards.

A keen understanding of industry requirements will help you select the best hinge for your application (and will save you time and money in the process!).

Next week: Hinges and installation method

Removable hinges and interior access

Thursday, August 18, 2011 by Daniel McCourt

Part 5 in a 10-part series on specifying hinges

Sometimes a user or service technician requires full access to the interior of a cabinet or enclosure. If this is the case, lift-off hinges or hinges with retractable pins can make it quick and easy to remove a door. You’ll also find these hinges valuable if a product ships unassembled or if the door and frame are manufactured in different locations.

Lift-off hinges let you remove the door in a single motion (without using tools). Just lift the door off the hinge pins mounted to the frame, and replace it by lowering it back over the hinge pins. Both your hands will remain free to maneuver the door. It might be a two-person job at most, but you’ll be amazed at the ease and speed of removal these hinges allow.

Hinges with retractable pins enable door removal without ever having to lift it. You retract the hinge pins and pull the door straight off. To replace it, you would just need to align the two halves of the hinge, extend the pins and lock the door back into place. Quick and very simple. While hinges with pins permanently attached won’t let the hinges drop or get lost, retractable hinge pings might be a better choice if the hinge axis is not guaranteed to remain vertical and steady.

Next week: Working within industry specifications

Considering the opening angle: Detent and torque hinges

Monday, August 15, 2011 by Daniel McCourt

Part 4 in a 10-part series on specifying hinges

We have all been there: Trying to keep a door open with our foot, a shoe or something else we find lying around. Today’s applications increasingly require hands–free access (or a really patient friend who will hold the door for you). If this is the case with your application, consider using a hinge with a built-in detent feature to hold the door or panel open at a preset angle. Or use an adjustable-torque feature, which will let you tighten or free up the door swing. Both of these hinge styles eliminate mechanical supports like gas struts or door stays.

Detent and torque hinges are two products in one—the hinge and the door stay. They bring with them some nice benefits, too. They reduce the number of parts, cut down on installation time and lower the overall cost.

Most detent hinges come with preset opening angles; some even provide negative angles that let the hinge go slightly past center when closed. This also holds the door securely against the frame and reduces vibration (a viable option when you know you might have rattling!). In some cases, you won’t even need a latch. Detent hinges are most appropriate for small lightweight applications. If this sounds like your application and you can benefit from some of these features, give it a try!

Next week: Using removable hinges to access an interior

Deciding between concealed and externally mounted hinges

Friday, July 29, 2011 by Daniel McCourt

Part 3 in a 10-part series on specifying hinges

We’ve discussed how important a consideration strength is when selecting a hinge. Now it’s time to examine the design considerations that sometimes dictate whether we select a concealed or externally mounted hinge.

Concealed hinges mount on the interior part of the door and frame. They are great to use when you desire a clean outer panel (and you get the added benefit of vandal resistance). When using an internal hinge, just remember to consider the amount of internal protrusion since inside space may be limited. These hinges may also restrict access and make it hard to install and hide mounting hardware. Since they work with specific doors and frames, product and mounting options should be designed with them in mind. Used appropriately, internal hinges deliver a sleek, streamlined appearance.

Exposed, external hinges deliver a different set of benefits: they work with limited interior space, offer greater strength and allow for a greater door-opening angle. Unlike concealed hinges, they are easy to fit to an application anytime in the design process…and they are more universal. They of course won’t be hidden, so care should be taken to blend the hinge design with the application.

Next week: Door and frame configuration and flexibility with opening angles