A fixture with three bond joints and a single-output spot lamp forces a choice nobody wants to make on the production floor: cure one joint at a time and eat the cycle-time penalty, or add a second controller and double the capital cost. Incure’s S20™ UV arc spot lamp solves that with lightguide configuration instead — one controller, up to four simultaneous cure outputs.
One Controller, Four Lightguide Configurations
The S20™ ships as a base unit (S20-BASE, sold without a lightguide for pairing with existing tooling) or pre-paired with a 1-, 2-, 3-, or 4-pole UV liquid lightguide. Each additional pole splits the same mercury arc output across another simultaneous cure point rather than requiring a separate lamp per joint — a 2-pole configuration doubles throughput on a symmetrical assembly in one trigger cycle, and the 4-pole configuration reaches four cure points from a single controller, the highest-throughput configuration in the line. That single-controller, multi-point approach is the spot-lamp equivalent of the belt-speed dose control on Incure’s CDM™ UV conveyor — both let one piece of equipment scale to a fixture’s actual bonding layout instead of forcing the layout to match the equipment.
Broad-Spectrum Mercury Arc Output
A 200W mercury arc lamp drives peak output above 21 W/cm² (up to 23 W/cm²) at the lightguide tip, across a 275–650 nm spectrum spanning UV into visible light. That breadth is the practical advantage over a single-wavelength LED source: broadband output is compatible with virtually any photoinitiator chemistry without first confirming the adhesive was formulated for one specific peak wavelength, a consideration covered in more depth in Incure’s explanation of what a light guide actually does in a UV spot lamp system. The tradeoff is warm-up: as a mercury arc system, the S20™ needs 1–2 minutes to reach full operating intensity and a cooldown period before restart, unlike an LED spot source that fires at full intensity immediately — a real consideration on a start-stop line, though the S20™’s rated lamp life of 2,000+ hours and dual DC fan cooling keep that warm-up penalty from compounding into frequent lamp swaps.
Matching Pole Count to Fixture Layout
Pole count should follow the fixture, not the other way around. S20-1P suits a single-joint bond — an individual fiber optic connector or small component — where one focused output tip is all the geometry calls for. S20-2P targets symmetrical assemblies and dual-joint bonding fixtures, curing both sides in one trigger instead of indexing the part between two separate cure steps. S20-3P is built around triangular fixture layouts and connector potting where three bond points need to complete together rather than sequentially, and S20-4P is reserved for high-volume automated lines running four bonding positions per fixture, where a single-pole lamp would turn the cure step into the line’s actual bottleneck.
Email Us with your fixture’s bond-point count and layout, and Incure’s engineers can confirm whether a 1-, 2-, 3-, or 4-pole S20™ configuration matches your cycle-time target.
Where the S20™ Fits on the Line
PCB conformal coat curing, SMD component bonding, underfill dispensing, and FPC connector assembly are common fits for multi-pole configurations, since a single trigger can cure several joints on a panel in one cycle rather than indexing the lamp across each one — an application also covered from the equipment-integration side in Incure’s guide to how UV spot lamps are used in electronics assembly. Precision optics work — lens bonding, fiber optic ferrule assembly, and waveguide alignment — draws on the S20™’s broad-spectrum output to ensure complete cure of optical adhesive formulations at whatever wavelength they were designed around, a pairing worth checking against Incure’s Optik™ UV optical adhesive grade guide when the adhesive and lamp are being specified together. General structural bonding, gasketing, and potting work across electronics, automotive, and broader manufacturing use the S20™ where high-intensity spot curing is required but a full conveyor line isn’t justified by part volume. In lab and qualification settings, the programmable timer and adjustable intensity make the S20™ a repeatable tool for cure-schedule development and adhesive qualification work ahead of a production rollout.
Control and Safety
Output intensity is adjustable from 25% to 100%, with a programmable 1–99 second timer for repeatable dose delivery across a production run rather than relying on operator timing. Constant power regulation holds output steady as the lamp ages within its rated life, and dual DC fans with filtering manage heat load during continuous-cycle use. Every lightguide-paired configuration (1P through 4P) ships with safety goggles, since the S20™’s broad-spectrum output includes wavelengths that require eye protection at the intensities the lamp is capable of delivering. The controller runs on either 100–120 VAC or 200–240 VAC input, so specifying the correct voltage option for the facility avoids a mismatch discovered only after the unit arrives on the floor.
Contact Our Team to confirm the S20™ lightguide configuration, intensity range, and control setup for your fixture.
Visit www.incurelab.com for more information.