PRM Engineering Services is proud to announce that their ground breaking Sentinel SIL-Rated Height and Slew Limiter was a finalist at the prestigious 2026 ARISO Rail Safety Awards. Judged by the Australian Rail Industry Standards Organisation (ARISO), this recognition highlights our ongoing commitment to developing world-class safety technologies that protect infrastructure and lives across the rail corridor.

Driving Local Innovation Ahead of Global Standards

Since 2017, PRM Engineering Services has been a trusted, preferred supplier of height and slew limiters for Tier 1 contractors, Original Equipment Manufacturers (OEMs) and rail networks Queensland Rail and Aurizon.

While Europe has recently mandated that all height limiters operating under energised lines must meet strict PL d safety standards under ISO 13849-1:2023 (SIL 2), Australia has not yet introduced a matching regulatory mandate. Following our long-standing tradition of adopting European best practices, PRM Engineering Services proactively resolved to bridge this gap. We are proud to offer our domestic clients this elite tier of safety right now, ensuring Australian rail projects remain ahead of global safety benchmarks.

Unmatched Protection in the Rail Corridor

The Sentinel Height & Slew Limiter system allows heavy earthmoving machinery including excavators, loaders, skid steers, and backhoes to operate safely near overhead powerlines, around bridges, and inside confined tunnels.

Key features of our safety-rated system include:

• The Only Australian-Designed SIL 2 System: Sentinel is currently the only system engineered entirely within Australia to meet both SIL 2 standards and the rigorous criteria of Queensland Rail and Aurizon.
• Enhanced Built-In Redundancies: The latest iteration of the system integrates superior hardware and software safety loops, maximizing reliability in high-risk zones.
• Next-Generation Remote Cloud Monitoring: Through our newly developed remote monitoring capability—accessible via a mature, secure cloud platform, we manage and deliver machine status updates in real time. This empowers fleet managers to strategically reduce operational downtime while keeping operator safety at the forefront of every decision.
• Comprehensive Workspace Protection: The technology protects not just the operator inside the cab, but also ground crews and co-workers working nearby. In the critical event of a potential powerline strike, the system isolates or restricts movement to safeguard the machine body and its surroundings.

Proudly Australian Made

As an officially approved Made in Australia system, the Sentinel safety range proves that local engineering can set a global benchmark. This recognition as an ARISO Rail Safety Award finalist validates our team’s hard work in helping the rail industry continually elevate its safety performance.

As proud recipients of prestigious accolades like the Safe Work Queensland Award, PRM Engineering Services range of Sentinel Safety Products combines the brilliance of our Australian engineering team with an elite, hybrid crew of auto electricians, hydraulic fitters, and mobile machinery experts.

By collaborating directly with Original Equipment Manufacturers (OEMs), we guarantee absolute compliance with your exact design requirements. This powerful technical synergy allows us to deploy, test, and perfect solutions on live machinery in real-time. Built for the most rugged conditions, PRM Engineering Services delivers field-tested reliability across a diverse range of industries.

For further information contact: Avril Davis, Director, PRM Engineering Services