Peak irradiance and total dose per pass sound like the same thing until a process actually needs one specifically and not the other — and the F500x2A is a useful case study in why that distinction matters.
590 mW/cm² Per Head — the Ceiling for Dual-UVA Configurations
The Incure CDM™ / CDM™ Compact + F500x2A pairs either belt platform with two F500 UVA lamp heads in series — no UVC lamp head — delivering 590 mW/cm² at 365 nm per head, the highest per-lamp-head intensity of any dual-UVA configuration on the CDM™ fleet, ahead of the F400x2A’s 490 mW/cm² and the F200x2A’s 350 mW/cm² per head. For photoinitiator systems with a minimum irradiance threshold, or formulations that need above-threshold intensity to initiate the radical chain without extended exposure time, that peak intensity is the deciding spec.
Doubling the F500x2AC at Every Belt Speed
The single-assembly F500x2AC delivers 1,480 mJ/cm² UVA at 6 ft/min. The F500x2A places two F500 UVA heads in series on the same conveyor platform, doubling that to 2,960 mJ/cm² UVA at 6 ft/min — the same relationship the F400x2A and F200x2A hold to their respective single-assembly counterparts, just at the F500’s higher per-head intensity.
Where It Falls Short of the F400x2A — and Why
Despite the higher per-head intensity, the F500x2A delivers less total energy per pass than the F400x2A at any given belt speed — 2,960 mJ/cm² versus 5,260 mJ/cm² UVA at 6 ft/min — because the F500’s aperture is shorter in the belt-travel direction, so a part spends less total time under the beam even at higher instantaneous intensity. If total dose per pass is the primary requirement, the F400x2A is the correct configuration; if peak irradiance is what a formulation’s photoinitiator system actually needs, the F500x2A is the right one despite the lower total-energy number.
Sorting out whether a process needs peak intensity or total dose — they’re not the same requirement — is worth confirming against the adhesive’s actual photoinitiator data. Email Us with your formulation’s specification and Incure can help match the configuration.
A quick way to settle the question in practice: if a formulation cures reliably at a lower peak intensity given enough total exposure time, total dose is the governing variable and the F400x2A is likely the better fit. If cure quality drops sharply below a specific peak irradiance regardless of how much total time is allowed, the formulation has a genuine minimum-intensity threshold, and the F500x2A’s higher per-head output is the configuration built to clear it.
UVA-Only, Available on Both Platforms
No UVC lamp head means no UVC ventilation or PPE overhead. The F500x2A is available on both the standard CDM™ (polypropylene belt) and CDM™ Compact (stainless-steel wire belt), sharing the same 3.0–6.5 inch curing height range and 5-inch maximum part width on either chassis. A mounting stand is not available for F500 configurations on either platform. Lamp head replacement is planned at the 1,000-hour threshold per head, and belt speed adjustment remains the only process control — no external PLC/RS-232 port is available on this configuration; see the Incure L-Series™ UV LED Flood Lamps family if external control integration is a requirement instead.
This configuration sits within the broader Incure CDM™ UV Conveyor lineup — matching peak intensity, total dose, and belt platform to the actual formulation avoids specifying the wrong variable.
Where This Configuration Fits Best
The F500x2A earns its place specifically on processes with photoinitiator systems documented against a minimum irradiance threshold rather than a total-dose target — fast-curing UV adhesives with sharp activation curves, or formulations where the manufacturer’s technical data sheet specifies a peak mW/cm² floor rather than a cumulative mJ/cm² target. For dose-driven formulations without that specific requirement, the F400x2A’s higher total energy per pass is usually the more broadly useful choice at this end of the CDM™ arc lineup.
Uniformity Is Slightly Different at This Tier
Dynamic uniformity at 2.0 inches for the F500x2A is 0.81 and static uniformity is 0.74 — marginally lower than the 0.82/0.75 typical of the F100/F200/F400 arc lineup, reflecting the F500’s shorter, more concentrated aperture geometry. In practice that’s a small enough difference that it rarely changes a configuration decision on its own, but it’s worth knowing about if a process is right at the edge of a uniformity specification and comparing the F500x2A against the F400x2A as alternatives.
The Real Decision: What Does the Photoinitiator Actually Need?
The F500x2A versus F400x2A choice ultimately comes down to reading the adhesive’s technical data sheet correctly rather than defaulting to whichever spec number looks higher. A photoinitiator system’s cure kinetics are typically documented in terms of a minimum irradiance threshold, a total dose requirement, or both — and only one of those numbers determines which configuration actually fits. Treating peak mW/cm² as a universal “better” metric without checking which requirement governs the specific formulation is the most common way to end up with the wrong configuration on this platform.
For a full review of your process, Contact Our Team.
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