1. Capable of uniformly expanding tube sheets of 15-500mm thickness in a single operation;
2. Digital automatic control, precise setting of expansion pressure, simple operation, and reliable expansion quality;
3. Integrated hydraulic system design, leak-proof system;
4. Can expand internally threaded tubes or welded tubes;
5. Low residual stress in the expanded heat exchanger tubes, effectively preventing crevice corrosion and reducing stress corrosion;
6. Slight contraction rather than axial elongation after expansion, reducing equipment operating noise;
7. Low requirements for heat exchanger tube dimensional accuracy; large inner hole errors can be adjusted on-site with appropriate adjustment of the expansion rod diameter;
8. No contamination at the expansion joint; expansion before welding is unaffected;
9. Can expand copper, carbon steel, stainless steel, duplex steel, titanium alloy, composite materials, etc.;
10. The operating handle weighs only 1.5kg, allowing for continuous and rapid expansion by a single person;
11. High-pressure resistant imported rubber expansion bags have strong fatigue resistance, with an average service life of over 100 cycles per piece;
12. The integrated design of the vulnerable component-the expansion rod-makes replacement simple;
13. Low labor intensity and high production efficiency; each machine can expand and connect over 2000 pipe holes per shift.
