| Home | Supply | Service | Freezers | Engineering |

• inserting metal shafts into metal wheels & hubs
• press fitting steel or brass rings around shafts
• fitting guide pins into die shoes
• inserting brass bushings into hubs

Replaces conventional heat and force fitting and eliminates distortion of component parts.

Works faster and more efficiently than dry ice.

Typical shrinkage is:

• 0.002" per " diameter on steel
• 0.0035" per 1" on phosphor bronze

• repairs can be conveniently made and new lines and valves can be added without a general disruption of facility operations
• draining of pipeline contents unnecessary
• potentially hazardous pipeline contents do not need to be handled and stored in order to work on the pipeline

Pipelines composed of copper, steel, iron and lead are ideal candidates for liquid nitrogen freezing. Pipeline diameters of 1/2 inch and greater are easily handled.

When a press jams, production is halted an time and money are lost. An immediate resolution is required. By using liquid nitrogen, expensive press equipment is freed quickly, and most importantly, without damage to the component parts. After enclosing the effected area with a foil bag, liquid nitrogen is fed into the temporary reservoir causing the jammed metal to cool shrink. Benefits of this method include:

• response is immediate to ensure minimal downtime

• the entire process is non-intrusive and does involve the disassembling of equipment