YZJ-5-350 350MPa Hydraulic tube expander machine

YZJ-5-350 350MPa Hydraulic tube expander machine

YZJ series rapid tube expansion machine is a special expansion equipment for boiler and heat exchanger manufacturing and maintenance. The equipment can reliably expand the heat exchange tubes of various specifications and materials, especially for the expansion of thick tube plates and large diameter tube heat exchangers. The heat exchanger produced by rapid tube expansion machine has the advantages of uniform tube expansion, safety and reliability, long service life and low failure rate. Moreover, the expansion operation is simple, the expansion speed is fast, the manufacturing or maintenance time is greatly shortened, the production loss of chemical equipment is reduced, and the economic benefits are very high.

YZJ type hydraulic expansion technology has the following characteristics

1, The tube plate of any thickness is uniformly expanded at one time with all thickness.

2, Expansion of intermediate tubesheet or multi-tubesheet heat exchangers at any depth.

3, Expansion of internal threaded pipe or seam welded pipe.

4, The residual stress after expansion is low, which is not easy to produce gap corrosion.

5, After the expansion of the heat exchange tube, the axial direction is not extended and slightly contracted, which is conducive to reducing the operating noise.

6, The inner hole error of the pipe is large, and the diameter of the expansion head can be adjusted appropriately on site (the maximum grinding allowance of the expansion head is 0.3mm).

7, No oil pollution at the expansion joint, the first expansion after welding is not affected.

8, The edge of the heat exchanger with the tube box can be directly expanded, which is very convenient.

9, One person can continuously expand, can expand 6-8 tube heads per minute.

10, The comprehensive economic benefits have been greatly improved.

Conditions of use

1, Indoor use.

2, The ambient temperature is in the range of -20℃ to 40℃.

3, The use of the area of the maximum monthly average relative humidity is not more than 85%, while the monthly average temperature of the month is not higher than 30℃.

4, There is no conductive dust, explosive gas level 1 can seriously damage the metal box insulation corrosive gas.

Pipe expansion machine structure

The hydraulic tube expansion machine is mainly composed of hydraulic control system, pressure amplification system, hydraulic tube expansion control system and automatic water adding system.