A two-joint assembly cured with a single-pole lightguide needs two separate trigger events, two lamp activations, and a repositioning step in between. The Incure LLG-2P-3 collapses that sequence into one.
One Lamp Head, Two Simultaneous Cure Points
Where a single-pole guide like the LLG-1P-3 requires two sequential exposures to cover two bond joints on the same assembly — connector housings, dual-port seals, paired lens elements — the LLG-2P-3 bifurcates the lightguide into two independent output poles, each delivering UV to its own bond point from a single lamp controller. Both spots illuminate simultaneously within one trigger cycle rather than requiring two separate lamps, two controllers, or two sequential activations to cover the same two joints.
Splitting one lamp’s output across two poles does mean each pole receives a share of the total available UV energy rather than the full output a single-pole guide would deliver — a trade-off worth confirming against the adhesive’s dose requirement at each bond point before committing to the bifurcated configuration on a joint that’s already running near the minimum cure dose on a single-pole setup.
The throughput impact compounds across a production run: eliminating one trigger event per part removes not just the second exposure’s dwell time but also the handling step between the first and second cure — the part doesn’t need to be repositioned or re-indexed between bond points.
No Indexing Step Between Bonds
The two output poles terminate independently and mount at fixed, separate positions in the fixture, each aimed at its own bond face. During a trigger cycle, both spots activate at once — the part stays still. That removes indexing as a source of handling variation entirely, and it eliminates a specific failure mode common on sequential single-pole setups: mechanical disturbance of the first bond while the second joint is still curing, which can happen whenever a part is moved or re-clamped between two sequential exposures.
Email Us if a two-joint assembly is currently running through two sequential single-pole cure cycles that a bifurcated guide could combine into one.
Precision Spot Size at Each Pole
Each of the LLG-2P-3’s two poles carries a 3 mm core — the same tight, contained cure spot as the single-pole LLG-1P-3, just delivered to two locations at once rather than one. That precision limits the irradiated zone at each bond point independently, avoiding unwanted UV exposure on adjacent components in dense two-joint assemblies. The minimum cable length of 750 mm is shorter than any single-pole option, suited to compact two-station fixture geometries where a longer guide would introduce excess cable slack between the split point and the two termination points.
Both poles deliver UV from 300 nm through the visible range, with total transmission up to 5 W split across the two outputs, and the guide is compatible with mercury arc, xenon, and halogen spot curing lamps.
Application Fit
The LLG-2P-3 is purpose-built for any assembly with exactly two bond joints that currently require sequential single-pole curing — connector housings with dual seal points, paired lens or optical element bonding, and dual-port sealing applications are the clearest matches. It’s not the right tool for a single joint, where a single-pole guide is simpler and more efficient, or for assemblies needing three or four simultaneous points, which the trifurcated and quad-pole configurations in the same range are built to handle.
Evaluating whether a bifurcated guide is worth the switch usually comes down to a simple audit: count how many separate trigger events a current process runs per part, and whether those events target exactly two distinct bond locations rather than the same joint cured twice for redundancy. If the answer is two genuinely different bond points, the LLG-2P-3 collapses that count to one without changing the lamp, the adhesive, or the fixture design otherwise. Operating temperature is rated −5°C to +35°C, consistent with the rest of the LLG range.
Scaling Up or Down Within the Range
For single-point curing at the same 3 mm precision, the LLG-1P-3 covers cable lengths up to 2,000 mm, or the LLG-1P-5 extends to 3,000 mm with a wider 5 mm core for higher dose per point. For a third simultaneous bond point beyond what the LLG-2P-3 covers, the trifurcated LLG-3P-3 extends the same 3 mm-per-pole precision to three joints at once. For four simultaneous points — the maximum in the LLG range — the quad-pole LLG-4P-3 covers the largest multi-joint assemblies from a single lamp controller.
None of these liquid lightguide configurations pair with UV LED sources; for LED-based multi-point spot curing, the Incure L9000 lightguide series is the compatible platform instead. See Incure’s lightguide selection guide for the full range comparison, consider the Incure S20 arc spot lamp as the mercury-arc source most commonly paired with multi-pole LLG configurations, and review the LS217 lightguide simulator for tracking each pole’s transmittance independently once the guide is in service. Contact Our Team to evaluate whether a bifurcated guide fits your two-joint assembly process.
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