Ultrasonic Tube Sealer for Refrigerator and Air Conditioner | Buying Guide
An ultrasonic tube sealer is a professional metal tube sealing equipment that realizes solid-state metal connection through high-frequency ultrasonic vibration. It is widely used in the refrigeration industry for tail sealing and cutting of copper tubes and aluminum tubes for refrigerators, air conditioners, freezers and heat pump units.
Different from traditional flame welding, ultrasonic metal sealing requires no open flame, no welding wire and no auxiliary consumables. It ensures stable sealing strength and effectively prevents refrigerant leakage. For refrigeration manufacturing and maintenance workshops, the core purchasing factors include matching power, pipe diameter compatibility, explosion-proof certification and automation level.
1. Core Purchasing Criteria for Ultrasonic Tube Sealer
1.1 Power Selection Based on Pipe Diameter
Tube diameter and tube wall thickness determine the required ultrasonic power. Matching power can guarantee one-time forming and uniform sealing effect.
2000W–3000W: Suitable for conventional household refrigeration pipelines with a diameter of φ6mm to φ16mm. It covers standard pipelines of household air conditioners, small and medium-sized refrigerators and freezers, meeting daily production and maintenance needs.
4000W and above: Designed for thick-walled tubes and large-section copper tubes. It provides stronger ultrasonic energy, completes solid-state fusion in a short time, and is applicable to industrial heat pump units and large refrigeration equipment.
1.2 Explosion-Proof Safety Certification
Many environmentally friendly refrigerants used in modern refrigeration equipment are flammable, including R290 and R600a. In formal production lines, flammable refrigerants may remain in the pipelines.
Ordinary sealing equipment may cause safety hazards due to electric sparks. It is necessary to select an ultrasonic tube sealer with complete explosion-proof electrical design to adapt to production scenarios wit