Ultrasonic Plastic Tube Sealing & Trimming Systems for Cosmetic Packaging
Clean, hermetic end-sealing and integrated waste trimming for laminated tubes (ABL, PBL) and mono-material PE/PP squeeze tubes. Welds reliably through oily creams, thick lotions, and gel contamination without burning or odor.
Figure 1: UltraLanank semi-automatic ultrasonic tube sealer with pneumatic orientation, date/batch code embossing, and precision pneumatic trimmer.
1. The Ultrasonic Advantage: Welding Directly Through Oily Residue
In high-speed cosmetic and pharmaceutical filling lines, oily ointments, sunscreens, and thick pastes inevitably splash onto tube seal areas. Traditional hot-air or heated conduction sealers burn the product residue, producing blackened plastic edges, chemical odors, and micro-leaks under transit pressure.
Ultrasonic tube sealing operates by transmitting 20kHz mechanical oscillations directly into the plastic laminate. The violent micro-vibrations expel liquids and particulate grease out of the sealing plane before molecular fusion occurs, achieving a pristine, 100% leak-proof seal in just 0.2 to 0.5 seconds.
2. Recommended Equipment & Tooling Architecture
- Semi-Automatic Ultrasonic Plastic Tube Sealing & Trimming Machine (UL-TS20): Complete with color-mark photocell tracking, alphanumeric date/lot debossing dies, and clean pneumatic edge trimming.
- Explore our full range of Industrial Ultrasonic Plastic Welding Systems.
3. Cosmetic Tube Sealing Technical FAQ
Q: Can ultrasonic systems seal aluminum-barrier laminated (ABL) tubes?
A: Yes. Acoustic energy penetrates outer polyethylene layers and bonds inner sealing films together while respecting internal aluminum foil moisture barriers.
Q: What tube diameters and cycle speeds are supported?
A: Our UL-TS20 accommodates standard cosmetic tube diameters from Ø10mm to Ø60mm, running at 15–30 tubes per minute for semi-automatic models and up to 60–80 tubes per minute on fully automated rotary carousels.
Q: Can we send sample filled tubes for seal strength testing?
A: Yes. Ship 10–20 empty or filled sample tubes to our Zhaoqing testing lab. We execute trial sealing, burst squeeze tests, and provide complete 4K video documentation within 48 hours.
Upgrade Your Tube Packaging Line with Zero-Leak Ultrasonic Sealing
Get immediate technical advice and custom tube fixture tooling design from Chief Engineers in Zhaoqing.