A UV curing chamber that served a pilot line well can quietly become the station everyone waits on. The shift from batch chamber to belt-fed conveyor is a real process change, and it goes smoother when the warning signs are read early and the transfer is planned rather than rushed.
Q: When should a UV curing chamber be replaced by a UV conveyor?
A: Consider a conveyor when chamber handling time, not exposure time, limits output; when parts queue at the chamber while upstream and downstream stations wait; or when the line already runs continuously and a manual load-and-unload step is the only batch operation left. A conveyor replaces door cycles with continuous transport and sets dose through belt speed instead of a timer.
Five Signs the Chamber Is the Bottleneck
- Parts stack up before the chamber. Work-in-progress accumulates at the cure station while other operations idle.
- Exposure is short, but cycles are long. Loading, closing, opening, and unloading take far longer than the lamp is on.
- A second chamber is under discussion. Doubling enclosures also doubles operators, fixtures, and interlock checks.
- Handling causes defects. Repeated tray handling disturbs uncured parts or knocks fixtures out of position.
- Robots are already upstream. A pick-and-place or dispense cell feeding a manual cure step creates a mismatch in pace.
If two or more apply, the conveyor conversation is worth having. Want a second view on your station? Email Us with your cycle breakdown and target output.
What Changes When Dose Moves From Timer to Belt
In a chamber, dose equals irradiance at the shelf multiplied by exposure time. On a conveyor, time under the lamp is set by belt speed. Incure’s CDM™ UV conveyor runs from 1.5 ft/min to 12.0 ft/min, with 6.0 ft/min as the nominal speed; slowing the belt raises dose, speeding it up lowers dose. The practical consequence is that a qualified chamber recipe does not transfer directly. The dose target transfers; the setting that delivers it has to be found again on the new equipment.
Carrying the Lamp Decision Across
The CDM™ accepts several of the same lamp families used in chambers:
- LED flood heads: L64 and L88
- LED focused-beam heads: M51 and M62
- Mercury-arc flood heads: F100, F200, F400, and F500
That overlap helps. A process qualified at a particular LED wavelength in a C-Series™ chamber can stay on LED inline, and an arc process from a B500 can stay on arc. The L64, which has no matched C-Series™ chamber, is available as a conveyor head, so some processes that never fit a chamber become possible inline.
Arc conveyor heads come in two configurations. The x2AC pairs a UVA tube with a UVC tube for broadband output, while the x2A mounts two UVA heads in series to double dose in one pass. Incure lists F200x2A at 18,000 mJ/cm² against 9,000 mJ/cm² for F200x2AC at 1.5 ft/min, so the choice matters if the adhesive depends on UVC.
Part Width and Height Limits Inline
Chamber sizing asks whether a part fits the box. Conveyor sizing asks whether it fits under the lamp head. On the CDM™, maximum part width is 1 inch on the M51, 2 inches on the M62, 4 inches on the L64, 5 inches on the F400 and F500, and 8 inches on the L88, F100, and F200. Curing height runs 0.5 to 2 inches on the LED, F100, and F200 configurations and 3.0 to 6.5 inches on the F400 and F500. Check these against the part and any carrier before committing.
Planning the Transfer
- Record the chamber process: lamp, wavelength, shelf position, measured irradiance, exposure time, and verified dose.
- Choose a conveyor head matching the lamp technology and wavelength.
- Confirm part width and height against that head.
- Run trials across belt speeds and verify cure at each.
- Select a speed with margin, then qualify it on production parts.
- Wire controls: LED heads support PLC, RS-232, and foot-switch control, while arc heads have no external control port.
When to Keep the Chamber
Not every process should move. Low volumes, frequent changeovers, parts too large for any conveyor head, and qualification work all remain natural chamber jobs. Many facilities keep a chamber beside the line for engineering trials and rework after the conveyor takes over production. The chamber options and their lamp pairings are listed in Incure’s B/C-Series™ chamber guide.
For the underlying differences between batch and inline curing, see Incure’s UV cure chamber industrial guide.
Running Both During the Changeover
Keep the chamber process qualified and available until the conveyor recipe has run production parts successfully for an agreed period. If a conveyor trial reveals a problem, parts can return to the chamber without stopping the line, and the comparison between the two setups helps isolate what changed.
Making the Move Deliberately
The move from chamber to conveyor pays off when it removes a real bottleneck and keeps the qualified dose intact. Contact Our Team to review whether your process is ready to go inline.
Visit www.incurelab.com for more information.