Vertical lift gates, those powerful workhorses of loading docks and industrial facilities, are undeniably convenient. But their very strength and size present potential hazards, making safety and security features paramount. Think of it like a powerful tool – incredibly useful, but requiring careful handling. Nobody wants a dropped load or, worse, an injury.
So, what keeps these hefty gates operating safely and securely? A key feature is the inclusion of safety edges. These sensitive strips, often running along the bottom edge of the gate, detect obstructions-anything from a stray pallet to a person-and immediately stop and reverse the gates movement. Its a crucial first line of defense against accidents.
Beyond safety edges, many modern vertical lift gates incorporate photo-eye sensors. These create an invisible beam across the gates opening. If the beam is broken, signaling a potential obstruction, the gates operation is halted. This adds another layer of protection, particularly in busy environments.
Hydraulic and mechanical safety systems work behind the scenes. Hydraulic systems often include pressure relief valves to prevent overloading and potential damage. Mechanical systems might feature brakes or holding mechanisms to prevent uncontrolled descent in case of power failure or component malfunction. These are the unsung heroes, silently ensuring the gate remains under control.
Security features are also essential. Locking mechanisms prevent unauthorized access, safeguarding valuable goods stored within the facility. Some gates integrate with access control systems, allowing only authorized personnel to operate them. This adds a layer of protection against theft and vandalism.
Finally, regular maintenance and inspection are crucial. Just like a car needs regular tune-ups, a vertical lift gate requires periodic checks to ensure all safety and security features are functioning correctly. Worn components should be replaced promptly, and the entire system should be tested regularly.
In short, the safety and security features of vertical lift gates are a combination of proactive measures like sensors and reactive measures like brakes and holding mechanisms. Coupled with regular maintenance and a culture of safety, these features help ensure these powerful tools operate efficiently and safely, protecting both personnel and property.
Installation and maintenance are crucial aspects of ensuring the longevity and reliable operation of vertical lift gates. These robust structures, essential for controlling water flow in a variety of settings from irrigation canals to flood control systems, demand precision and care throughout their lifecycle. A successful installation lays the foundation for years of dependable service, while a proactive maintenance program prevents costly repairs and downtime.
The installation process begins with careful site preparation. This includes ensuring a stable foundation capable of supporting the gates weight and the forces exerted by the water. Precise alignment is paramount; any deviations can lead to binding, uneven wear, and premature failure. Heavy lifting equipment is typically required to maneuver the gate components into position, highlighting the need for experienced personnel and adherence to strict safety protocols. Once the gate is erected, rigorous testing is conducted to verify its functionality, including smooth operation, proper sealing, and the responsiveness of the control systems.
Maintaining a vertical lift gate requires a multifaceted approach. Regular inspections are essential to identify potential issues before they escalate into major problems. These inspections should encompass all components, from the structural steel framework and lifting mechanisms to the seals, guides, and electrical systems. Lubrication is key to minimizing friction and wear on moving parts, and the type of lubricant used should be carefully selected based on the specific application and environmental conditions. Seals, vital for preventing leaks and maintaining watertight integrity, require periodic inspection and replacement. Furthermore, the control system, whether manual or automated, needs to be regularly tested and calibrated to ensure reliable operation.
Beyond routine maintenance, unforeseen circumstances like debris accumulation, impact damage, or extreme weather events can necessitate repairs. Addressing these issues promptly is crucial to prevent further damage and maintain the gates functionality. Depending on the nature of the repair, this may involve welding, replacing damaged components, or adjusting the gates alignment. A well-documented maintenance history proves invaluable in troubleshooting problems and anticipating future maintenance needs.
In conclusion, the installation and maintenance of vertical lift gates are critical for their long-term performance and reliability. A meticulous installation process, coupled with a comprehensive and proactive maintenance program, ensures that these essential structures continue to effectively manage water flow, contributing to flood control, irrigation, and various other water management applications.
Choosing the right vertical lift gate system involves more than just its functionality; cost plays a crucial role. While these gates offer robust security and efficient space utilization, understanding the various cost factors upfront can prevent budget overruns and ensure you get the best value for your investment.
One of the primary cost drivers is the size and complexity of the gate itself. Larger, heavier gates require more robust lifting mechanisms and potentially more complex control systems, directly impacting the upfront purchase price. Custom designs and specialized features, like integrated access control or unique finishes, also add to the initial cost.
Installation expenses are another significant consideration. Factors like the existing infrastructure, site preparation requirements, and the complexity of the electrical and mechanical installations can influence the overall cost. For example, installing a gate on a sloped surface or integrating it with existing security systems will likely increase labor and material costs.
Beyond the initial purchase and installation, ongoing operational costs are also important. Regular maintenance, including lubrication, inspections, and potential repairs, are essential for ensuring the gate's longevity and reliable operation. These costs can vary depending on the gates usage frequency, environmental conditions, and the chosen maintenance plan. Furthermore, the type of drive system – hydraulic, mechanical, or pneumatic – impacts energy consumption, contributing to the overall operating expenses.
Finally, dont overlook potential long-term costs. While a higher initial investment in a durable, high-quality gate might seem expensive, it can lead to lower maintenance and repair costs over time. Conversely, opting for a cheaper, less robust system might result in more frequent repairs and a shorter lifespan, ultimately proving more costly in the long run.
In conclusion, understanding the various cost considerations associated with vertical lift gate systems is crucial for making an informed decision. By carefully evaluating the initial purchase price, installation expenses, ongoing maintenance costs, and potential long-term expenses, you can select a system that meets your security needs and fits within your budget. Dont hesitate to consult with reputable suppliers and installers to discuss your specific requirements and obtain detailed cost estimates.
When choosing an electric gate for your property, youre faced with a variety of options, each with its own set of pros and cons. While swing gates and sliding gates are common choices, vertical lift gates offer a unique solution that might be the perfect fit for certain situations. So, how do they stack up against the competition?
One of the biggest advantages of vertical lift gates is their space-saving design. Unlike swing gates, they dont require a large swing radius, making them ideal for properties with limited space or where a swinging gate might encroach on a sidewalk or roadway. Similarly, they dont need the extended track required by sliding gates, which can be a significant advantage on sloped or uneven terrain.
Security is another area where vertical lift gates shine. Their robust construction and vertical lifting mechanism make them inherently more difficult to force open compared to traditional swing gates. The added height when closed also provides a greater visual deterrent.
However, vertical lift gates arent without their drawbacks. Installation is generally more complex and costly than other gate types, often requiring specialized expertise. The mechanism itself can be more susceptible to damage from high winds or impacts, and repairs can be more expensive. Furthermore, the height requirement for the gate to lift fully can be a limiting factor in some locations.
Compared to sliding gates, vertical lift gates offer superior security and space-saving design, but come at a higher initial cost and require more specialized maintenance. Sliding gates are a good compromise between cost and functionality, offering good security and relatively straightforward installation, but they do require a significant amount of linear space. Swing gates are the most economical and easiest to install, but their security can be less robust and they require ample swing clearance.
Ultimately, the best choice depends on your individual needs and priorities. If security and space are paramount, a vertical lift gate might be the perfect solution. If budget and ease of installation are key concerns, a swing or sliding gate might be a more practical choice. Carefully weigh the pros and cons of each type before making your decision.
An electric gate is a type of gate that can be opened and closed using an electrically powered mechanism.
Driveway gate openers can be the rollback (sliding) type that retracts a gate along the fence or wall on wheels or bearing, or the swing type that draws the gate open or closed on hinges. They are usually operated by a remote controller or a sensor
Articulated gate openers can be used for gates with wide posts allowing opening in small spaces.[1] An easy system for DIY installers as they are simple to install but not as aesthetically pleasing as other motor designs. Also known as Crank arm operators, they are the main type of automation system sold in France, where low aluminium gates are often used.
Under-gate Jack operators usually control the gate by directly moving the pivot point of each gate leaf. This makes the unit ideal cosmetically and also allows for up to 180 degrees of leaf swing as required. However controlling the pivot point of the gate, is like opening a door by twisting the hinge, and as so is very difficult due to the loads needed at that point. This is highlighted with snap, as the gate has to change direct, as soon as it can. For this reason they are recommend as only suitable for ‘Domestic’ systems in a low risk of abuse environment. Another major consideration with the use of under-gate units is that of water immersion/ingress and warranty voidance. If the water table is high or the drainage of the unit's foundation box inadequate throughout the systems life, then water ingress and unit failure is increased.
Ram or link arm units are usually simpler to install and maintain, they are visible to otherwise ignorant abuse and as they fix down along each gate leaf, they also have an obvious and sometimes major, mechanical advantage over Jacks. Therefore, Rams are far more suitable on Multi-user & commercial systems. Also the manual release is always above ground, making it often more user friendly in operation.
If space is an issue or the driveway behind the gates is on a steep incline, a better option would be a sliding gate. Sliding gates are also very popular in a commercial environment. Sliding gates are also used for cantilever gate systems.
One of the first electric gates was invented by a Canadian Fred W. Watson in 1881. It was designed to be used for railway systems.[2] In 1884, a number of American newspapers reported that the French railway companies were about to adopt an electric gate opener. “A catch connected with an electro-magnet keeps a gate closed,” reported The National Tribune on October 9, 1884.[3] One of the early demonstrations of such gates in the United States was arranged by the short-lived Toulmin Electric Railway Gate Company in 1887, in Baltimore.[4] At the end of the 19th century, electric gates were also used at horse racing tracks.[5]
The first commercial electric gate systems were hydraulic and designed for reliability and ease of use. The cost of the hydraulic systems however meant that other companies started producing more affordable electromechanical alternatives. Hydraulic motors are the preferred choice on large and heavy gates as they can generate high levels of torque, electromechanical systems designed for lower usage domestic installations because they can be produced more cost effectively.[6]
The backbone of any electric gate, whether automatic or not, is the electric gate motor, two distinct motor types exist hydraulic, or electromechanical. This is the electric device which actually enables the electric gate to open and close without having to manually push the gate.
The safety of an automated gate is an important consideration, in the European Union, automated gate safety is specified by a series of European Normalisations. An automated gate that has not been fitted with safety in mind can potentially become a major hazard particularly to untrained users. Various safety devices are available to make sure that your gates meet the highest of European or American safety standards.
Since electric gates operate slowly, they are susceptible to "tailgating" threats, in which a person or vehicle sneaks in behind an authorized user.[7] If security is a concern, a video surveillance camera should be installed.[7]
Electric gates alone, however solid and imposing they may be, cannot guarantee a completely secure environment electric locks, are often needed to boost the locking effectiveness of the gate motors. Electric gates are recommended to be used in combination with other security features to install a full security system. A few of these features are closed circuits with security cameras, additional gates in conjunction with the main gate, electronic keycards and keypads, security guards.[8]
Aside from the additional security features that should go with parking barrier gates, electric security gates often offer safety features like sensors that determine when there is an obstruction to prevent the electronic gate from swinging into a vehicle or closing on somebody's hands. To prevent the electronic gates from being damaged by irresponsible drivers driving fast speed bumps are also commonly placed before gate entrances to slow down vehicles.
In the United States all the electric gate installations must meet Underwriters Laboratories 325 (UL 325) standard while in Europe installations must meet with the Machinery directive 2006/42/EC with EN13241-1 being the regulations concerning gates.[9][10][11][12]
The installer of the gate is responsible for the conformity to regulation, not the manufacturer. The two main EN regulations that then apply are EN 12453 which describes the safety levels that should be observed when installing a gate and EN12445 which describes the testing method that must be undertaken.[13]
The major points are the maximum amount of force at certain test points. Example - a maximum of 400N of force can be applied in the last 50, 300 and 500 mm of travel of a gate, after the initial impact the force must drop to 150N within 0.75 of a second and reduce to 25N within 5 seconds. During the mid travel of a gate the allowable force is 1400N. A full risk assessment of the gates must take place with all crush, cutting points shown to the client with appropriate protection devices offered, a recommended maintenance program should also be provided. Finally the installer must confirm that all electrical equipment fitted has the European CE mark all the time.
To conform to these regulations the gate system must be checked with a calibrated force tester and the full results kept in a technical file for 7 years. If the gate is not tested it does not comply.
Most gate kits can be fitted with safety equipment so that these limits are achieved and so cover that part of EN13241-1.
In September 2010, following two incidents in Bridgend and Manchester, when children were killed by sliding gates, the UK Health and Safety Executive issued 2 safety notices aimed at gate manufacturers and installers, demanding them to comply with the Annex A of BS EN 12453:2001 standard.[14][15]
In recent years, aluminium has emerged as the material of choice for driveway gates in the UK, and for good reason. One of the key reasons for this shift is the ease with which aluminium gates can meet force limitation guidance. Force limitation refers to the maximum amount of force that a gate can exert on an object or person, ensuring safety and minimizing the risk of accidents or injuries. With lightweight aluminium gates, meeting these force limitation guidelines becomes much more achievable, as they require less force to open and close compared to heavier materials such as wrought iron or steel.
Another advantage of aluminium gates is their compatibility with brushless motor operators. Brushless motors offer numerous benefits over traditional brushed motors, including higher efficiency, longer lifespan, and reduced maintenance requirements. Aluminium gates, being lightweight, work well with brushless motor operators, as the motors do not have to work as hard to maneuver the gates. This not only enhances the overall performance and reliability of the gate system but also contributes to energy efficiency, leading to cost savings in the long run.
Furthermore, aluminium gates provide additional advantages such as resistance to rust and corrosion, making them a durable and low-maintenance option. They are also highly customizable, allowing homeowners to choose from a wide range of designs, colors, and finishes to match their aesthetic preferences. Additionally, aluminium is a sustainable material as it can be recycled, aligning with the growing trend of eco-consciousness in the construction and home improvement industries.
[16]
Overall, the combination of meeting force limitation guidance more easily, compatibility with brushless motor operators, durability, low maintenance, and customizability has made aluminium the material of choice for driveway gates in the UK. With its numerous benefits, it offers homeowners a reliable, safe, and aesthetically pleasing option for enhancing the security and curb appeal of their properties.
A gate or gateway is a point of entry to or from a space enclosed by walls. The word is derived from Proto-Germanic *gatan, meaning an opening or passageway.[1] Synonyms include yett (which comes from the same root word) and portal. The concept originally referred to the gap or hole in the wall or fence, rather than a barrier which closed it. Gates may prevent or control the entry or exit of individuals, or they may be merely decorative. The moving part or parts of a gateway may be considered "doors", as they are fixed at one side whilst opening and closing like one.[2]
A gate may have a latch that can be raised and lowered to both open a gate or prevent it from swinging.[3] Gate operation can be either automated or manual. Locks are also used on gates to increase security.
Larger gates can be used for a whole building, such as a castle or fortified town. Doors can also be considered gates when they are used to block entry as prevalent within a gatehouse.
A fence is a structure that encloses an area, typically outdoors, and is usually constructed from posts that are connected by boards, wire, rails or netting.[1] A fence differs from a wall in not having a solid foundation along its whole length.[2]
Alternatives to fencing include a ditch (sometimes filled with water, forming a moat).
A balustrade or railing is a fence to prevent people from falling over an edge, most commonly found on a stairway, landing, or balcony. Railing systems and balustrades are also used along roofs, bridges, cliffs, pits, and bodies of water.
Another aim of using fence is to limit the intrusion attempt into a property by malicious intruders. In support of these barriers there are sophisticated technologies that can be applied on fence itself and strengthen the defence of territory reducing the risk.
The elements that reinforce the perimeter protection are:
In most developed areas the use of fencing is regulated, variously in commercial, residential, and agricultural areas. Height, material, setback, and aesthetic issues are among the considerations subject to regulation.
The following types of areas or facilities often are required by law to be fenced in, for safety and security reasons:
Servitudes[6] are legal arrangements of land use arising out of private agreements. Under the feudal system, most land in England was cultivated in common fields, where peasants were allocated strips of arable land that were used to support the needs of the local village or manor. By the sixteenth century the growth of population and prosperity provided incentives for landowners to use their land in more profitable ways, dispossessing the peasantry. Common fields were aggregated and enclosed by large and enterprising farmers—either through negotiation among one another or by lease from the landlord—to maximize the productivity of the available land and contain livestock. Fences redefined the means by which land is used, resulting in the modern law of servitudes.[7]
In the United States, the earliest settlers claimed land by simply fencing it in. Later, as the American government formed, unsettled land became technically owned by the government and programs to register land ownership developed, usually making raw land available for low prices or for free, if the owner improved the property, including the construction of fences. However, the remaining vast tracts of unsettled land were often used as a commons, or, in the American West, "open range" as degradation of habitat developed due to overgrazing and a tragedy of the commons situation arose, common areas began to either be allocated to individual landowners via mechanisms such as the Homestead Act and Desert Land Act and fenced in, or, if kept in public hands, leased to individual users for limited purposes, with fences built to separate tracts of public and private land.
Ownership of a fence on a boundary varies. The last relevant original title deed(s)[8] and a completed seller's property information form may document which side has to put up and has installed any fence respectively; the first using "T" marks/symbols (the side with the "T" denotes the owner); the latter by a ticked box to the best of the last owner's belief with no duty, as the conventionally agreed conveyancing process stresses, to make any detailed, protracted enquiry.[9] Commonly the mesh or panelling is in mid-position. Otherwise it tends to be on non-owner's side so the fence owner might access the posts when repairs are needed but this is not a legal requirement.[10] Where estate planners wish to entrench privacy a close-boarded fence or equivalent well-maintained hedge of a minimum height may be stipulated by deed. Beyond a standard height planning permission is necessary.
Where a rural fence or hedge has (or in some cases had) an adjacent ditch, the ditch is normally in the same ownership as the hedge or fence, with the ownership boundary being the edge of the ditch furthest from the fence or hedge.[11] The principle of this rule is that an owner digging a boundary ditch will normally dig it up to the very edge of their land, and must then pile the spoil on their own side of the ditch to avoid trespassing on their neighbour. They may then erect a fence or hedge on the spoil, leaving the ditch on its far side. Exceptions exist in law, for example where a plot of land derives from subdivision of a larger one along the centre line of a previously existing ditch or other feature, particularly where reinforced by historic parcel numbers with acreages beneath which were used to tally up a total for administrative units not to confirm the actual size of holdings, a rare instance where Ordnance Survey maps often provide more than circumstantial evidence namely as to which feature is to be considered the boundary.
On private land in the United Kingdom, it is the landowner's responsibility to fence their livestock in. Conversely, for common land, it is the surrounding landowners' duty to fence the common's livestock out such as in large parts of the New Forest. Large commons with livestock roaming have been greatly reduced by 18th and 19th century Acts for enclosure of commons covering most local units, with most remaining such land in the UK's National Parks.
A 19th-century law requires railways to be fenced to keep people and livestock out.[12] It is also illegal to trespass on railways, incurring a fine of up to £1000.
Distinctly different land ownership and fencing patterns arose in the eastern and western United States. Original fence laws on the east coast were based on the British common law system, and rapidly increasing population quickly resulted in laws requiring livestock to be fenced in. In the west, land ownership patterns and policies reflected a strong influence of Spanish law and tradition, plus the vast land area involved made extensive fencing impractical until mandated by a growing population and conflicts between landowners. The "open range" tradition of requiring landowners to fence out unwanted livestock was dominant in most of the rural west until very late in the 20th century, and even today, a few isolated regions of the west still have open range statutes on the books. More recently, fences are generally constructed on the surveyed property line as precisely as possible. Today, across the nation, each state is free to develop its own laws regarding fences. In many cases for both rural and urban property owners, the laws were designed to require adjacent landowners to share the responsibility for maintaining a common boundary fenceline. Today, however, only 22 states have retained that provision.
Some U.S. states, including Texas, Illinois, Missouri, and North Carolina, have enacted laws establishing that purple paint markings on fences (or trees) are the legal equivalent of "No Trespassing" signs. The laws are meant to spare landowners, particularly in rural areas, from having to continually replace printed signs that often end up being stolen or obliterated by the elements.[13]
The value of fences and the metaphorical significance of a fence, both positive and negative, has been extensively utilized throughout western culture. A few examples include:
Notes
Bibliography
Evergreen Electric Gates installed a gate at my entrance a couple of days back. Logan was very helpful in answering all my doubts. His crew did a fantastic job. The gate is visually impressive and the pricing was highly reasonable. I am extremely pleased with their quality of work and service!
I highly recommend Evegreen Electric Gate ! Logan and his crew were professional, friendly, and easy to work with. Gate posts, automatic gate, and fence were completed well and in a timely fashion.
After completing an inquiry on their website, we received a prompt response which was refreshing. They sent David out to come see what we wanted, took measurements & notes and was very professional & personable! It was a pleasure working with him from start to finish! The installation team lead by Roberto was also dedicated & precise, making sure we got what we wanted! We couldn’t be happier with the outcome! Awesome gate, glides easy & so happy we can latch & lock! THANK YOU TO ALL THE STAFF & TEAM! We’re extremely pleased and grateful!
Logan was prompt and arrived as scheduled and was very polite and friendly. We took the time to discuss my options, as was very clear about the costs. The steel gate itself was fine, so we only needed an installation of new LiftMaster dual swing gate system. Though my gate required the fabrication of new mounting arms, Logan fabricated, welded, and painted them on site. Logan offered us a price that was very fair; he was able to get us scheduled within the next week, and and the installation job was completed in less than a day. Thank you Logan and Evergreen Electric Gates NW.