Automatic slotter RS4 – slotting with vacuum feeder
The automatic slotter (RS4 type) slots, cuts the glue flap and creases corrugated box blanks with automatic feeding. Blanks are fed one at a time by a vacuum lead edge feeder and then pass through the creasing and slotting sections.
Compared with a semi-automatic slotter, it gives much higher output and steadier feeding, and is less dependent on the operator.
Machine overview
The machine consists of a lead edge feeder, a creasing shaft section and a slotting shaft section. Knife phase is adjusted electronically through 360 degrees, so the slot position along the blank length can be set quickly and accurately without a long stop at job change.
Reference video
Applications
- Slotting, flap cutting and creasing of corrugated boxes in large quantities.
- Processing plain or pre-printed blanks.
- Adding slotting capacity when the printer slotter is overloaded.
Key features
- Lead edge feeder: feeds sheet by sheet under vacuum; blanks enter straight and steadily.
- 360-degree electronic knife phase adjustment: fast, accurate change of slot position.
- Large blank range: from 350 × 600 mm to 1600 × 2800 mm.
- High output: 100 – 180 sheets/min.
Practical benefits
- High output for large-volume plain box orders.
- Even feeding, fewer slot misalignment defects than hand feeding.
- Less labour at the feeding stage.
- Fast size changes thanks to electronic knife phasing.
Suitable customers
- Box plants with medium and large volumes.
- Plants that need a dedicated slotter for plain boxes, separate from the printer slotter.
Technical specifications
| Parameter | Value |
|---|---|
| Machine type | RS4 automatic slotter, vacuum feeding |
| Minimum blank size | 350 × 600 mm |
| Maximum blank size | 1600 × 2800 mm |
| Operating speed | 100 – 180 sheets/min |
| Feeder | Lead edge feeder, vacuum |
| Knife phase adjustment | Electronic, 360 degrees |
Specifications are given as standard configuration ranges; actual values depend on the model and the configuration ordered. Contact PTS for the detailed specification sheet of each model.
Conclusion
The automatic slotter suits plants that need high-output, stable slotting with little labour. PTS advises on machine size, installs and commissions the machine, and supplies slotting knives and feeder spare parts.
📞 Hotline: (+84) 905 675 566 – Send an enquiry – See also: converting machines and auxiliary equipment
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