DJ771 Multi-Head Doming for Repeat Label Sheets
Two DJ771 epoxy doming runs show how needle arrangement and dispensing path adapt to different label shapes: rounded-rectangle Robota labels and circular logos.
Browse All Case StudiesQuick Answer
The DJ771 dispensed 120 rounded-rectangle Robota labels with 5 needles and a straight-line path in about 45 seconds. A second run dispensed 90 circular logo labels with 3 needles and point dispensing in about 58 seconds. Each time runs from program start until the needles return to the waste-discharge position, excluding loading and unloading. Choose the needle arrangement and path to match your label layout and resin flow.
Two Sample Runs at a Glance
| Sample detail | Robota labels | Circular logo labels |
|---|---|---|
| Resin | Epoxy resin | Epoxy resin |
| Label shape | Rounded rectangle | Circle |
| Needles | 5 | 3 |
| Dispensing path | Straight-line path | Point dispensing |
| Labels dispensed | 120 | 90 |
| Approximate program cycle | 45 seconds | 58 seconds |
| Full cure | 15–24 hours at approximately 25°C room temperature | 15–24 hours at approximately 25°C room temperature |
Both times cover program start through return to the waste-discharge position. Loading and unloading are excluded. Each run uses a different combination of label shape, quantity, needle arrangement and dispensing path.
Sample 1: Robota Labels — 5 Needles, Straight-Line Path
120 rounded-rectangle Robota logo labels; approximately 45 seconds from program start until the needles return to the waste-discharge position. Loading and unloading are excluded.
Sample 2: Circular Logos — 3 Needles, Point Dispensing
90 circular logo labels; approximately 58 seconds from program start until the needles return to the waste-discharge position. Loading and unloading are excluded.
Production Need
The production task required repeated dispensing over a stable label-sheet arrangement. The main decision was whether a saved 3-axis path and optional multi-nozzle setup could reduce repeated manual positioning.
What the Two Videos Show
- Saved coordinates repeat dispensing positions across regular label sheets.
- The 5-needle setup uses a straight-line path for rounded-rectangle Robota labels; the 3-needle setup uses point dispensing for circular logos.
- Multiple needles can dispense in parallel where label pitch and needle spacing are compatible.
Planning Your Label Production
- Include sheet loading, unloading, curing and inspection when planning daily output alongside the dispensing cycle.
- Match needle spacing to label pitch so that each needle dispenses within its assigned label.
- Keep sheets flat and check resin flow at the smallest gaps and edges before running a batch.
- Choose the needle count and dispensing path together with the label shape and layout. More needles are useful when the sheet supports parallel dispensing.
When This Setup Usually Fits
DJ771 suits stable repeat sheets, predictable product spacing and recurring orders. Use a single head when layouts or resin flow do not support parallel dispensing. Compare SJ4060 if placement variation or frequent irregular-design changes make positioning and path setup more demanding.