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Hot and Cold Rolling Applications: Shearing
Hydraulics and Prevention of Unexpected Start-Up
Key kept on operator / maintenance to
prevent unexpected start-up
• CAT 4/PLe pneumatic & hydraulic valves• Mechanical bias to exhaust downstream
fluid power• Range of size options
• Block & bleed or block & hold options
Cell Active - Red light
Machine run down - Amber light
Unit unlocks and personal safety keys (ISO 14118, 5.3) can be removed
Cell safe to enter - Green light
Valve bleeds system removing hazardous energy
Gardpropro
• 10 kN retention force• Up to PLe• CAT 4• SIL 3• IP 65/67• 24/110/230 V• ISO 19837 keys
Proactive Inhibit Functions
Safety keys allow operators to take control of their own safety; taking the key into the hazardous area to prevent start up.
Multiple key types available with fully customisable colour types for ease of identification. We track all key types on each site we supply to ensure that no duplicates make it onto site – unless you request it.
• Connectivity • EtherNet/IP and PROFINET
solutions available with customisable connections
Control of hazardous energy
Poor visibility into hazardous area
Process enforcement
Positively driven monitoring
contacts indicate to PLC that process
is complete
Fortress Interlocks Ltd +441902349000 www.fortress-safety.com, Fortress Europe +31 (0)10 7536060 [email protected], Fortress USA +1 (859) 578 2390 [email protected], Fortress Australia +61 (0)3 9771 5350 [email protected], Fortress China +86 (021) 6167 9002 [email protected], Fortress India +91 7042358818 [email protected] September 2021 - v1.0
Reactive Inhibit Functions
Optional emergency release available in case egress is required from the area.
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