Application Scenario

During the assembly of heavy machinery, bearings and molds, interference fit is required. Steel shaft parts are cooled in -196℃ liquid nitrogen; after the diameter shrinks, they are easily installed into holes, and after returning to room temperature they fit tightly without stress damage.

Supporting Equipment

• 5-10m³ liquid nitrogen storage tank
• Cryogenic treatment tank
• Self-pressurizing liquid supply system

Solution Advantages

Compared with press fitting, cryogenic assembly with liquid nitrogen does not damage part surfaces and mating faces, and assembly accuracy can reach micron level; cryogenic treatment can also eliminate internal residual stress of parts, improving part service life.