Views: 0 Author: Lucky He Publish Time: 2026-08-24 Origin: Site
In the cosmetics and personal‑care manufacturing industry, master‑slave double‑layer plastic tubes are widely used for facial cream, body lotion, facial cleanser and ointment products. This special tube structure brings higher requirements for tube‑end sealing. Ordinary hot‑melt sealing equipment often causes problems such as uneven sealing, tube surface scorching and poor sealing tightness. The ultrasonic master‑slave tube sealing machine solves these pain points with advanced ultrasonic vibration sealing technology, and has gradually become preferred packaging equipment for many cosmetic factories.
Different from traditional thermal sealing that relies on high‑temperature molds, ultrasonic sealing converts high‑frequency electric energy into mechanical vibration. Vibration energy acts on the tube tail of the master‑slave plastic tube. The internal plastic molecules rub and generate heat rapidly to achieve instant fusion. The whole sealing process does not need continuous high‑temperature heating. It will not damage the printed pattern on the tube surface, and the sealed edge is flat, firm and not easy to crack. This technology is especially suitable for composite double‑layer master‑slave tubes which are sensitive to high temperature.
Stable sealing quality for special tubes Targeted at master‑slave double‑layer plastic tubes, the ultrasonic transducer can output stable vibration energy. It avoids common defects like incomplete sealing, leakage and wrinkled tube tails which often appear on ordinary sealing machines. Sealing consistency stays good even in mass‑production.
Intelligent and easy operation Equipped with PLC control system and human‑machine touch screen interface. Operators can set sealing time, production count and running parameters directly on the screen. The machine supports automatic tube feeding, automatic positioning, sealing and finished‑product output. Fault alarm and prompt function help workers quickly locate abnormal conditions. The learning cost for new operators is low.
High‑standard hygiene design The main contact parts and machine frame adopt SUS304 stainless steel material, which complies with cosmetic production hygiene standards. It is easy to wipe and clean, effectively reducing cross‑contamination during production.
Strong production adaptability The machine supports quick adjustment for different tube diameters. Manufacturers do not need to change major components when switching among multiple tube specifications. It can meet the diversified production demands of small‑batch trial‑order and large‑volume mass‑production. Emergency stop button and status warning light are built‑in to guarantee operational safety.
This sealing equipment is mainly deployed in cosmetic production workshops. It processes master‑slave tubes filled with face cream, skin lotion, facial cleanser, hair care paste and pharmaceutical ointment. It works well for both independent cosmetic factories and OEM/ODM contract‑processing manufacturers.
As a cosmetic machinery leading factory, SIPUXIN focuses on practical machine solutions for overseas customers. Before shipment, we provide machine running test videos for customers’ confirmation. All machines enjoy 12‑month whole‑machine warranty. Long‑term online technical guidance and spare‑parts supply are available. We also accept customized configuration according to customers’ actual tube samples and factory site conditions.
For manufacturers using master‑slave double‑layer plastic soft tubes, choosing a professional ultrasonic tube sealing machine can effectively reduce product leakage rejection rate, improve finished‑product appearance quality and raise overall packaging‑line efficiency. Compared with conventional thermal sealing devices, ultrasonic sealing shows obvious advantages for special composite tubes. It is a worthwhile investment for long‑term cosmetic packaging production.