An alternative method of Heat-Shrinking Heavy Bearings

Introducing the Ruggedised Industrial Freezer

The Efficient Solution for Heat-Shrinking Heavy Bearings

Traditionally, fitting new bearings into existing plant and equipment involves heating the outer housing with a flame. However, this process can be costly and inconvenient, especially on remote mine sites where shipping liquid nitrogen from capital cities is required.

An alternative method using a two-stage water-cooled industrial freezer has been developed, capable of freezing the item to -70°C or with a liquid nitrogen boost down to -180°C. Although effective, this method requires the item to be pre-cooled in a workshop, making it unfeasible in some cases.

Now, the manufacturer of this innovative freezer has developed a ruggedised industrial freezer that is skid-mounted on the back of a truck, eliminating the need for bringing the part to the workshop. This top-loading, heavy-duty industrial freezer is designed to hold up in harsh heat treat environments. Connected to an air-cooled water chiller, the system can operate in ambience up to +55°C, and the chiller eliminates the need for a suitable mineral-free water supply, which is often not available on-site.

Additionally, the chilling process can be sped up by filling the chamber with delaminate, a natural liquid that freezes at about -90°C. This enables faster cooling and makes the system ideal for other metallurgical applications with steel, including age hardening, stress relieving, martensiting, and dimensional stabilisation.

As the authorised CSZ Industrial agent in Australia and New Zealand with over 40 years of experience in test machine sales and commissioning, our expert engineers at Hylec Controls are available to assist you. Simply email for a quotation.

Leave a comment

Please note, comments must be approved before they are published