Photon Assay & G2 Truss
Photon Assay Facilities, Engineered & Built
Photon assay represents one of the most significant shifts in gold analysis in over a century. Compared to traditional fire assay, it's faster, non-destructive, and handles much larger sub-samples — improving representativity for coarse gold mineralization and dramatically reducing per-sample turnaround. But the technology itself is only half the equation. Deploying it onsite requires a facility engineered specifically for what photon assay needs.
This page shows two halves of the same project: a purpose-built photon assay facility with integrated sample preparation, and the G2 Commercial Structural Shell (CSS™) engineered wood-truss construction system that makes building that facility fast, predictable, and site-friendly.
A complete photon assay workflow under one roof — receiving to result.
Twin-console photon assay with integrated sample prep.
The PA-P2-V1 layout brings the full photon assay workflow — from sample receiving through prep, drying, crushing, and analysis — under a single 52' × 52'-11" roof. The Rocklabs Mid Boyd twin-console configuration is paired with dedicated Linac, Modulator, and Automation cabins, sized to support production throughput onsite.
Receiving & Drying
Sample intake with Alsto 2M3 drying ovens and drying rack staging — the first hand-off in the workflow.
Crushing
Twin Rocklabs Boyd Crusher RSD stations with paired consoles, designed for high-throughput sample preparation.
Photon Assay
Automation, Linac, and Modulator cabins housed in their own shielded zone, with chiller and compressor support adjacent.
Support & Utilities
Electrical, dust collection, make-up air, and QC hood — sized for sustained production-scale operation.
The shell that makes it possible — built off-site, assembled fast.
G2 Commercial Structural Shell.
Photon assay facilities need real structure — shielded equipment cabins, load-bearing roof spans for ventilation and dust collection, and a building envelope that can be erected quickly and on a tight site. The G2 CSS™ system uses prefabricated engineered wood components — including the proprietary G2T™ open-web truss — manufactured in plants across the country and assembled onsite in days rather than weeks.
Engineered for the loads modular labs need to carry.
The structural shell is more than a building — it's an engineered platform that has to accommodate shielded photon assay cabins, dust collection systems, make-up air units, and HVAC loads, all while spanning the working zones of a busy lab floor below. The G2T™ open-web truss system gives a shallower roof envelope than traditional construction, with engineered fastener patterns and connection details designed and stamped for the specific project.
Because the wall panels and trusses are prefabricated off-site at G2's manufacturing plants, the work that happens onsite is mostly assembly — not framing from raw lumber. That changes what site conditions you need, what labor mix is required, and how long the structure takes to close in.
Engineered Loads
G2T™ trusses are designed and stamped for the actual loads the lab will carry — equipment, mechanical, snow, wind, seismic.
Prefab Components
Wall panels and trusses arrive on site ready to assemble, with fastener patterns and connection details predefined.
EOR Services
Engineer-of-Record services available through G2 ProServ in conjunction with the structural shell deliverables.
Wood-Framed
Engineered wood construction with lower embodied carbon than equivalent steel-framed structures.
What the construction sequence looks like.
The G2 CSS™ system is engineered for rapid site assembly. The video above shows the construction animation; the phases below summarize how a typical lab shell comes together over a handful of working days.
Wall Panel Erection
Prefabricated wall panels arrive and are set on the prepared slab. Anchoring and panel-to-panel connections completed.
G2T™ Truss Installation
Open-web wood trusses are lifted into place, connected to bearing walls, and locked in with engineered fasteners.
Bracing & Sheathing
Permanent bracing installed, structural sheathing applied. The shell is now load-bearing and weather-ready.
Envelope & Fit-Out
Roofing, exterior finishes, and interior fit-out begin. Lab equipment installation follows the structural close-in.
Planning a photon assay facility?
Whether you're sizing a single twin-console layout or a full-scale production facility, we'll work through the workflow, the structure, and the deployment timeline with you.
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