Cross-Guard’s premium Extendor Vulcan security grille (certified security grille)

Exclusive to Cross-Guard as part of the market-leading Extendor range, the Extendor Vulcan security grille is certified to LPS 1175 SR2 by the LPCB and Secured by Design as a Police Preferred specification. Extendor Vulcan security grilles deliver proven resistance against hacksaws and electric drills as one of Cross-Guard’s highest strength security grilles, protecting windows, doorways and various other building openings and access points. Vulcan security grilles are the only security grilles other than Extendor Eclipse to protect against bolt cutters.

Vulcan security grilles are commonly used in high-security environments such as government and embassy buildings. For unrivalled strength, clients often choose the Extendor Eclipse to secure lower floor access points, while using the Extendor Vulcan or Elite security grilles for upper floor windows. The Extendor Vulcan is suitable for the high security of all entry and access points/openings and can be used in combination with the Extendor Elite or Eclipse security grilles due to an identical appearance. The Vulcan security grille’s bold design creates a strong visual deterrent, while also providing a heavy-duty physical barrier for the protection of your premises.

Extendor Vulcan security grilles

Available in a range of sizes and colours to suit your requirements, Extendor Vulcan security grilles can be manufactured as fixed or retractable grilles. The Vulcan security grille operates an enhanced, bespoke CL03 multi-point locking system. Cylinders are individually pinned and keyed in-house at our dedicated Scunthorpe manufacturing facility for security grilles.

A core advantage of the Extendor range of security grilles is the fact they are uniform in appearance so, if you’d prefer a different level of certified security for the lower floors of your building compared to upper floors, you can install different Extendor grilles while keeping the same uniform design. Extendor Vulcan security grilles have a straight, hardened steel lattice/link design.

Cross-Guard’s Extendor Vulcan security grilles are easy to install with straight-forward fitting and maintenance instructions provided to you with the security grille. Requiring limited maintenance, it’s recommended you use a dry cloth to occasionally dust Extendor Vulcan security grilles. You can also use a wet cloth with mild detergent on the Vulcan security grille.

Security grille features

  • Certified to LPS 1175 SR2 by the LPCB
  • Enhanced CL03 bespoke locking system
  • In-built anti-jemmy security strip
  • Resistant to a broad range of tooling
  • Secured by Design approved
  • Hardened steel lattices
  • Hardened anti-saw bars in pickets
  • Corner fixed on all four sides
  • Easy reference fitting instructions
  • Top rolling
  • Recess track, channel and deep rail available
  • Zinc plated anti-rust finish
  • Durable powder coating
  • Vast size and colour range
  • 2-year warranty

Security grille benefits

  • Proven attack resistance
  • Enhanced security
  • Protects lock from attack
  • Increased protection from attack
  • Additional peace of mind
  • Increased resistance
  • Tools struggle to gain traction
  • Increased strength
  • Straightforward installation
  • Smooth operation
  • Reduced tripping hazards
  • Durability
  • Longer-lasting solution
  • Tailored to individual preference
  • Peace of mind*

Get in touch to receive our best price





* All Extendor Vulcan security grilles are guaranteed for 2 years against faulty parts or workmanship. The guarantee does exclude damage, misuse and incorrect installation of the security grilles.

Extendor Vulcan security grilles are very light to operate due to a combination of aluminium and stainless-steel components. Vulcan security grilles can contain neat, recessed handles for a premium look and feel.

Call +44 (0)808 301 9807 or email grillesales@cross-guard.com for technical specifications

Where are Extendor Vulcan security grilles used?

Cross-Guard’s Extendor Vulcan security grilles deliver leading security for the reinforcement of windows, doors and other openings. Vulcan security grilles are commonly used in buildings requiring the highest levels of security, including government facilities, foreign and commonwealth offices, embassies, police stations, commercial corporations, public utilities, universities, financial institutions and hospitals. Vulcan security grilles protect these buildings to prevent unauthorised access.

Vulcan grilles work in parallel with electronic security devices to provide a physical barrier. It’s usually not enough to rely purely on security systems that alert you of an intruder as robberies happen quickly and police response time may not be fast enough.

A certification reference is provided on the Vulcan grille lock post to give you peace of mind the security grilles are manufactured to the highest standards.  Extendor Vulcan security grilles are popular in markets that require an LPCB rated security grille or a Secured by Design grille.

Secured by Design was introduced to improve and standardise the safety and security of products. Vulcan retractable security grilles are developed to be as secure as possible in accordance with police guidelines. All Extendor security grilles are also bomb blast tested, installed in high-risk areas across the globe.

Vulcan security grilles for commercial security

As the video above illustrates, security in the workplace is a key issue with concerns over terrorism, organised crime and data theft. It’s important to review your security requirements to implement a security system that works for you, incorporating physical deterrents alongside other measures. The multi-point locking mechanism of Vulcan security grilles makes them infinitely stronger. These security grilles can be locked in the open position and can be integrated with electronic locking options that wire into fire suppression systems.

Below are images displaying some of the various applications of Extendor Vulcan security grilles. Extendor Vulcan security grilles provide you with an authentic, market-leading security solution for lasting peace of mind about the security of your premises.

The images above show how Vulcan security grilles combine the need for protection and security with the need for aesthetic appeal. Extendor security grilles are unsurpassed for security with no other comparable products created to the same quality with the same unique design. In high-risk commercial buildings, Extendor Vulcan security grilles ensure complete security, while also allowing ample ventilation during summer months for a safe, comfortable working environment.

Since the Extendor Vulcan is a high-security grille, it is well suited to the demands of high-risk environments where there are threats to the national critical infrastructure. It also works well as a deterrent for specialist burglars who carefully select targets, focussing on wealthy estates, and are usually more sophisticated than ‘smash and grab’ burglars.

Call +44 (0)808 301 9807 or email grillesales@cross-guard.com for assistance

What does it mean for the Extendor Vulcan security grille to be LPCB certified to LPS 1175 SR2 and Secured by Design?

As the Extendor Vulcan is a certified security grille, it is manufactured to set standards and externally tested and approved by the LPCB (Loss Prevention Certification Board). The Extendor Vulcan security grille is proven to withstand attack from certain tools for a specification duration of time. Vulcan grilles are tested with the following tools to achieve the LPS 1175 SR2 security grille rating:

  • Pry bar
  • Screwdriver
  • Wrench knife
  • Glass cutter
  • Knife
  • Pliers
  • Bolt cutters
  • Hacksaw
  • Pipe wrench
  • Claw hammer
  • Hand drill

Vulcan security grilles are tested by the LPCB for a maximum duration of 15 minute with certified resistance against all the above tools. Majority of intruders and thieves typically spend less than 1 minute trying to gain access to a building, which means Vulcan grilles provide the ideal deterrent. By increasing attack time required, Vulcan certified security grilles encourage thieves and other intruders to move on to easier targets where there is less security in place. Thieves are 300% more likely to target a building without security in place.

A certification reference is provided on the Vulcan grille lock post to give you peace of mind the security grilles are manufactured to the highest standards. Extendor Vulcan security grilles are popular in markets that require an LPCB rated security grille or a Secured by Design grille.

Secured by Design was introduced to improve and standardise the safety and security of products. Vulcan retractable security grilles are developed to be as secure as possible in accordance with police guidelines. All Extendor security grilles are also bomb blast tested, installed in high-risk areas across the globe.

Extendor Vulcan security grille components

Extendor Vulcan security grilles are manufactured with straight lattices/links (the cross-sections of the Vulcan grille), which are held together between pickets. With no visible/vulnerable rivets, the Extendor Vulcan grid is fully secured at the top rail and track with tempered aluminium carriers and guides. Case-hardened components are used in Vulcan security grilles, in conjunction with rotating rods and drill-resistant cylinders, in order to protect against attack using a drill.

Extendor Vulcan security grilles operate by a wheel rolling in the top track if a retractable grille is requested. Since the Vulcan security grille is top hung, there is less risk of anything blocking the bottom track or hindering operation of the security grille. The bespoke locking mechanism utilises a high security kaba cylinder for leading protection and increased attack resistance.

The Extendor Vulcan security grille is available with options including a recessed track, channel rail, or deep rail, where the grille track is installed into the ground. This enhances access for pushchairs and wheelchairs, providing the security grille with a more professional finish that has minimal components on display.

If you’d like details about any of the other options available with the Vulcan security grille, give our specialist grilles team a call: +44 (0)808 301 9807.

Technical drawing for Vulcan security grille

Technical illustration of a Vulcan security grille

The illustration above displays some of the components that fit into an Extendor Vulcan security grille. If you’re one of Cross-Guard’s approved suppliers and distributors and would like to receive any imagery, please do get in touch. You can also call or email us if you’d like technical specifications for the Vulcan security grille.

Fixed, single and double Extendor Vulcan security grille assemblies

Fixed Extendor Vulcan security grilles are security grilles that don’t retract or move. These security grilles can be used where static security measures are required, for example for window security.

For Cross-Guard’s retractable Extendor Vulcan security grilles, there are two primary stacking options available. A Vulcan security grille with a single sash, more often known as a single stack security grille, will include one grille stack to the left- or right-hand side of your opening, depending on your preference. A double stack, or double sash, Extendor Vulcan security grille, will comprise of a bi-parting grille assembly.

Get A Quote


Close Menu