A safety locking shroud gas spring is a compression gas spring that utilizes a mechanical locking device to mechanically lock the gas spring in full-extended position. The benefit of locking a shroud spring in full extension is in loss of holding force the safety catch can hold the spring in full extension until released. This type of spring is utilized in increased liability applications where this safety feature saves money in liability costs. It is available in many different sizes.
The safety mat is a simple, normally open switch. When a specified minimum weight is applied to the safety mat the switch closes. This sends a signal to the safety mat controller, which in turn, sends a stop signal to the guarded machine. Each safety mat presents four wires to the safety mat controller. This provides the redundancy required to monitor the wires for open circuits due to incorrect wiring or physical damage to the safety mat wires. It can also simplify routine tasks such as machine set-up, maintenance and repair. It offers freedom, flexibility, and reduced operator fatigue when compared with traditional guarding methods such as interlocked fences, pullback restraints or perimeter barriers. Full visibility of and access to the work area is maintained.