Fortress Interlocks

Look to Bulwark Safety Systems as your source for first-class products from Fortress Interlocks – Safety access, Keyed interlocks, Non-contact switches, and more.

Fortress Interlocks, protects your business’s human and capital assets by designing and manufacturing safety interlock systems for industrial applications.

The Fortress product portfolio includes trapped key interlocks (mGard), heavy duty safety gate switches, with and without guard locking (amGard Pro), standard duty interlocks with built-in control functionality (tGard), non contact magnetic switch technology (NCS), and stainless steel modular gate switches (amGardS40). All product ranges are compliant with the latest machinery safety standards and independently approved by TUV.


mGard – Premier Range of Robust Modular Trapped Key Interlocks
Only trapped key interlock on the market with TUV approval to PLe
A trapped key system removes the need for wiring at the gate
Modular design allows multiple logic sequences (e.g. jog control or teach mode)
Broadest trapped key interlock range available on the market
Trapped key technology offers the lowest cost solution for retrofit


amGardpro – Modular Gate Switches for Safeguarding Hazardous Machinery
The strongest interlock switch in the world
Highest level of actuator mis-alignment on the market
TUV approved to PLe
Safety key option prevents unexpected startup
Modular design allows flexible approach to machine safety


tGard – Interlock Switches and Control Devices for Automation Safety
Metal body construction at competitors plastic price point.
Customisable as standard – select your elements to create your tailored interlock
Stylish design enhances the workplace aesthetics
Unrivalled choice of control options
Very easy to install – four fixings only


amGardnct – Coded non-contact switch technology (NCS)
Non-contact safety switches are ideal for use in applications where precise
guidance of guards is difficult. Due to the design they are extremely
long-lasting devices that require minimal maintenance. In addition they
are resistant to shock and vibrations and offer a high level of prevention
against tampering.


amGardS40 – Stainless Steel Modular Gate Switches
amGardS40 is the latest range of safety interlock switches from Fortress Interlocks. Manufactured in 316 stainless steel, the range is modular in design, allowing a wide range of safety interlock switches to be configured to suit many industrial applications. The range is supplied in enclosures sealed to IP69K making it suitable to be pressure washed at high temperatures and has a retention force of 10,000N (greatest on the market) so it is ideal for ensuring guard doors are held closed until machines and/or processes are in a safe condition. Each module has a slim body design of 40mm so that it can be easily fitted to 50mm guarding sections or areas where space is limited.


Check out the video tGard video below

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