New Semi-Automatic Plastic and Composite Soft Tube Sealing Machine DF-20B. This Semi-Automatic Tube Sealing Machine is designed to use an Ultrasonic Seal on Plastic Tubes and comes with the ability to emboss production dates or lot numbers. Sealing Width: 10 – 55mm, Air Pressure: 0.4MPa, Speed: approx 5-25 per minute,(depending on product) Electrics: 110 Volts/1Ph/60Hz. Overall Dimensions: 450 x 450 x 600 mm. Delivery Time: approx 4 weeks.