This depends on the holder's geometry, the clamping diameter, and the taper size. While some standard holders have a 4.5-degree taper, slim holders have a 3-degree taper. Depending on the type, a different temperature ranging from 150°C to 350°C is used when shrinking the holder.

Steel, HSS, carbide, heavy metals, metal powders, collet extensions.

The shank tolerance of the cutting tool must be h6 or h5.

With the ZOLLER »powerShrink«, it is possible to monitor the heating cycles of the tool holder using a unique tool holder ID number, such as the ZOLLER »idChip« technology. Each cycle is monitored and recorded in the »pilot« software.

The heating time depends on the geometry of the tool holder and the clamping diameter. For small diameters, this takes 2 to 3 seconds; for large diameters, 5 to 7 seconds.

ZOLLER offers two types of cooling systems: a contactless cooling system with air cooling and cooling adapters. Depending on the tool diameter, the cooling time with cooling adapters ranges from 60 to 120 seconds. With »Zstream« air cooling, the process is called conditioning, during which the entire tool holder is cooled from the nose to the flange. The conditioning time depends on the diameter of the holder and ranges from 3 to 5 minutes.

An air-conditioned room is not required. The unit can be installed in a dust-free area of the machine hall.

The concept is simple. Each shrink-fit tool holder is manufactured with an inner diameter that is slightly smaller than the shank diameter of the cutting tool. An induction heater is used to rapidly heat the nose area of the tool holder to expand the inner diameter. At this point, the cutting tool can be inserted into the tool holder. The tool holder is then cooled, causing the diameter to shrink and applying a force to the shank of the cutting tool to hold it securely in place.

When tool holders are shrunk without direct contact, the tool holder system is referred to as a contactless cooling system. This is achieved, for example, using cooling adapters or air cooling.

If the tool holders are cooled with a liquid after heating, this process is called quenching. The tool holder’s service life is reduced and the holder rusts if the tool holder continues to be used with liquids applied directly to it. The coolant becomes contaminated after a short time and must be replaced; otherwise, it breaks down, emits a strong odor, and contains harmful substances that are dangerous to human skin.

Yes, this is possible with the ZOLLER »powerShrink 600«, which allows the 14 kVA induction coil and the 22 kVA induction coil to be quickly and easily swapped out using the quick-change interface.

Yes, with the »eQset« and »liteSet« adjustment systems, it is possible to preset the total length of the tool on »the powerShrink«.