What temperature is the tool holder heated to during the shrinking process?

This depends on the geometry of the holder, the size of the clamping diameter and the taper size. While some standard holders have 4.5 degrees, slim holders have 3 degrees. Depending on the type, a different temperature from 150˚C to 350˚C is used when shrinking the holder.

What types of cutting materials can be used in shrink-fit holders for the shrink-fit process?

Steel, HSS, carbide, heavy metals, metal powder, shrink-fit extensions.

What is the required tolerance for the shank diameter of the cutting tool when using a shrink-fit tool holder?

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

Is it possible to monitor the service life of the tool holder and the number of shrink cycles of the tool holder?

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

What is the minimum and maximum heating time?

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.

What is the minimum and maximum cooling time?

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

Is an air-conditioned room required to install the »powerShrink« device?

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

How does shrinking work and what kind of process takes place here?

The concept is simple. Each shrink tool holder is manufactured with an internal diameter that is slightly smaller than the shank diameter of the cutting tool. Using an induction device, the nose area of the tool holder is quickly heated to increase the internal diameter. At this point, the cutting tool can be inserted into the tool holder. The tool holder is then cooled and the diameter shrinks, exerting a force on the shank of the cutting tool to hold it precisely in position.

What is non-contact cooling and contact cooling?

When tool holders are shrunk without direct contact, the tool holder system is called non-contact cooling. This is done, for example, with the help of cooling adapters or air cooling. If the tool holders are cooled with a liquid after heating, this process is called quenching. The service life of the holder is reduced and the holder rusts if the tool holder continues to be used with liquids directly on it. The cooling liquid becomes dirty after a short time and must be replaced, otherwise it collapses, smells strongly and contains harmful ingredients that are dangerous to human skin.

Is it possible to use the same shrink-fit machine for standard diameters from 3 to 32 mm and heavy-duty shrink-fit holders for diameters over 32 mm?

Yes, this is possible with the ZOLLER »powerShrink 600«, where the 14 kVA induction coil and the 22 kVA induction coil can be exchanged quickly and easily via the quick-change interface.

Is it possible to adjust the overall length of the tool after shrinking with the »powerShrink« machine?

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

»powerShrink« - Options & accessories

Name: »powerShrink«
Brand: Zoller

Make your choice simply and clearly or contact us: We will be happy to advise you on the selection of your model and the innovative variety of options.

Flue gas extraction

The fume extraction system reliably removes fumes from the operator's working area. The established and patented fume extraction system above the induction coil has been extended to include an integrated extraction system inside the coil housing. The fumes are therefore extracted directly where they are produced. The filter unit has a safe place in the under-table.

Air cooling »zStream«

With ZOLLER's air cooling »zStream« you obtain maximal flexibility and protection with the cooling of your shrink fit tool holder, independently of its contour or diameter. In addition, your shrink-clamping tools are cooled consistently and safely across their entire length – without the risk of being damaged. »zStream« is also ideally suited for cooling placed down tools.

Length adjustment »eQset«

The integrated length adjustment system is used to set the overall length or projection length and for tool replacement. The pneumatically activated quick adjustment and fine adjustment by handwheel enable fast, ergonomic and precise positioning of the probe head to the desired height.

Scan function incl. hand scanner

The »pilot« software scan function in combination with the hand scanner enables reliable selection of the appropriate shrink fit parameter by scanning the holder number on the shrink fit holder. Regardless of the manufacturer, all shrink fit toolholders with DataMatrix code (e.g. ZOLLER »idLabel«, ZOLLER »idChip«) are supported.

In the »pilot« software, each heating process can be counted for each shrink fit chuck. In addition, a warning and wear limit can be stored in relation to the permitted heating processes.

Set-up table for »powerShrink 400«

As an alternative to installation on a workbench, the »powerShrink 300« and »powerShrink 400« can be positioned on a set-up table with ergonomically optimal working height. This provides a tidy place for the cooler and flue gas suction device. The table is optionally available with sturdy rollers and an ergonomic handle to allow variable positioning.

Configurations for »powerShrink 400 | 11«

There are 3 basic configurations for the induction coils to choose from:

1. combination of any 14 kVA induction coil with quick-change interface, changing the induction coil from one induction coil axis to the other depending on the shrink chuck length

2. combination of any 2 14 kVA induction coils without »shrinkbyLight« and without quick-change interface

3. combination of any 14 kVA induction coil with a 22 kVA induction coil with quick-change interface

Receptacle

With your »powerShrink«, you will receive a receiving pot as standard. Additional pots can be ordered for parallel heating and cooling. The work surface is perfectly matched to the receiving pot and ensures convenient and quiet movement.

Pick-up rings

The different mounting rings allow flexible changeover between different mounting interfaces. For all common tool holder types and sizes up to SK 50, HSK 100 and PSC 10.

Special cooling adapter

Cooling adapter for special shrink fit chuck shapes and sizes (e.g. also for D3 mm to D5 mm). Suitable for cooling bells D14 mm to D16 mm or D25 mm to D32 mm.

Shelves

Storage board for mounting rings and special cooling adapters
The storage board provides space for storing four mounting rings and six special cooling adapters size I or three special cooling adapters size I and size II.

Tool tray
For storing socket tools at the shrinking workstation. The position of the tray can be freely selected by the operator.

Shelf for cleaning brushes
A shelf with all brush diameters is available for storing cleaning brushes, which can be attached to the device in any position using magnets. The brushes for cleaning the mounting hole of shrink fit chucks are also available from ZOLLER - for shaft diameters D3 mm to D32 mm, optionally made of brass or plastic.

Split shielding discs with tray
An optional set of shielding discs (5 pieces) in a split design including the corresponding disc tray can be ordered for shrink-fitting offset tools.

Coil operating handle

For optimum user-friendliness, the operating handle, which is fitted on the left as standard, can be fitted on the right or on both sides. Each operating handle is equipped with two function buttons - for moving the coil and activating the heating process.

Shrinking device »toolEx«

»toolEx« helps you to remove tools from the shrink fit chuck that cannot be pulled out by hand or with pliers, such as broken tools. The set includes a holder and six ejector rods.

Length adjustment »liteSet«

Use »liteSet« to set the projection length of the tool to be shrunk. The maximum projection length is 150 mm. The set contains four clamping prisms for shank diameters D3 mm to D32 mm.

The Fastest Way to Find the Right Model

	»powerShrink 200«	»powerShrink 300«	»powerShrink 400«	»powerShrink 600«
Machine equipment
13.3" touch monitor with ZOLLER image processing software »pilot«	Base model	Base model	Base model	Base model
Stable table	not possible	optional	optional	Base model
Workbench version for compact installation on own tabletop	not possible	optional	optional	not possible
Manual coil axis with electromagnetic/pneumatic axis clam	Base model	Base model	Base model	not possible
Manual coil axis with electromagnetic/pneumatic axis clamping	not possible	Base model	Base model	Base model
Tool axis with manual axis clamping	Base model	not possible	not possible	not possible
Heating
Induction coil with shielding discs	Base model	Base model	Base model	Base model
Induction coil with shielding discs, »shrinkbyLight«	not possible	not possible	optional	optional
Induction coil, »varOct«, manually adjustable	not possible	optional	optional	optional
Induction coil, »varOct«, manually adjustable, »shrinkbyLight«	not possible	not possible	optional	optional
Induction coil, »varOct«, CNC, »shrinkbyLight«	not possible	not possible	optional	optional
Quick change interface	not possible	not possible	not possible	optional
14 kVA induction coil	Base model	Base model	Base model	Base model
22 kVA induction coil	not possible	not possible	not possible	optional
Flue gas suction device	optional	optional	optional	optional
Coil operating handle left	not possible	Base model	Base model	Base model
Coil operating handle right or on both sides	not possible	optional	optional	optional
Cooling
No cooling system	Base model	not possible	not possible	not possible
Air cooling beneath the induction coil	optional	not possible	not possible	not possible
Cooling bells default, 3-fold	not possible	Base model	not possible	not possible
Cooling bells default, 5-fold	not possible	not possible	Base model	Base model
Cooling bells with »coolbyLight«, including cooling time monitoring, 5-fold	not possible	not possible	optional	optional
Free cooling bells guidance with fix mechanism	not possible	Base model	Base model	Base model
Linear, mechanical cooling bells guidance with push-to-release mechanism	not possible	not possible	not possible	optional
Air cooling »zStream« with two cooling places	not possible	not possible	optional	not possible
Cool manager	not possible	not possible	Base model	Base model
Software
ZOLLER image processing software »pilot«	Base model	Base model	Base model	Base model
Self-explanatory, graphic function surfaces	Base model	Base model	Base model	Base model
Color animated status indicators	Base model	Base model	Base model	Base model
Interface to the »actbyLight« operator guidance	not possible	not possible	optional	Base model
Scan function	optional	optional	optional	optional
Counting functions of shrink-clamping procedure	optional	optional	optional	optional
Hardware Options & Accessories
Length setting »eQset«	not possible	not possible	optional	optional
Hand scanner	optional	optional	optional	optional
Mounting pot	not possible	optional	optional	optional
Mounting rings SK, HSK, polygon shank taper, others on request	optional	optional	optional	optional
Special cooling adapter	not possible	optional	optional	optional
Storage board for mounting rings	Base model	optional	optional	optional
Tool tray	Base model	optional	optional	optional
Tray for cleaning brushes	optional	optional	optional	optional
Divided shielding discs with disc storage	optional	optional	optional	optional
Unclamping device »toolEx«	optional	optional	optional	optional
Positioning device »liteSet«	optional	optional	optional	optional

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