GAT Rotary Unions & Slip Rings for Machine Tools

GAT manufactures Rotary Unions, Slip Rings and Combinations for Machine Tool applications such as coolant through spindles, coolant supply for powered tool heads, hydraulic chuck actuation, media supply for rotary tables, swivelling spindle axis etc.  Cut operating costs with GAT rotary unions and slip rings. Carefully selected sealing systems and state-of-the-art technology ensure maximum operational safety.

Uncompromised Reliability

Extremely compact design of rotary unions and slip rings. Suitable for a great variety of media, flow rates, pressures and electrical transmission. Machine tools fitted with GAT products prove to be reliable equipment.

Optimally Adjusted to your Processes

Axial mechanical seals, contactless gap seal technology or elastomer seals. Individual solutions or complete systems. GAT offers powerful transmission technology – custom-made for your requirements.

Tried-and-proven solutions

GAT ensures that your production runs smoothly by maintaining a reliable coolant flow at all times. GAT products are subject to continuous development, always representing cutting-edge technology.

Application Example : ROTODISK S1-AK

Rotary Union ROTODISK S 
Speed [rpm] 20,000
Sealing system Axial Mechanical Seal
Highlights Suitable for operation with up to 3 media
Number of channels 1
Medium Emulsion Air Oil-air mixture
Pressure [bar] 80 10 10


Please contact us for any of your Rotary Union requirements.


New MAPAL Tool Holders Programme

At a Glance
  • New design concept for chucks with added value
  • Brilliant surface finish and clear handling information
  • Expansion to the entire chuck programme planned
  • Corrosion-resistant chucks
  • Self-explanatory, straightforward handling – foolproof
  • Greatest possible stability with optimal usage of resources

Carefully considered Design taps Potential

Not only the appearance of the chucks was revised, above all added value for the customer was to be generated by means of carefully considered industrial design. Why? An ingenious design is not only a visual highlight, it also taps economic and ecological potential. Starting from this point, the product designers prepared, together with those responsible for the products at MAPAL, a new concept that is also based on function and FEM analyses.

The chucks designed according to this concept shine proverbially with a new brilliance. One of the elements in the new concept is the brilliant surface finish. This surface finish, produced by a specially developed polishing method, ensures that the chucks are more resistant to corrosion than in the past.

Easy, Self-explanatory “foolproof” Handling

A further requirement on the new design was so-called “foolproof handling”; that is the easy, self-explanatory handling of the chucks. Controls were to be identifiable as such more quickly with directly understandable handling information. These requirements were addressed, on the one hand, by the blue colour for the controls, such as the actuating screw on a hydraulic chuck and, on the other hand, by internally developed symbols that contain corresponding information, independent of the related language.

Last but not least the shape of the chucks, their weight and use of material were studied and optimised. The new shape addresses the requirements for the greatest possible stability with optimal usage of resources. Even the smallest weight savings on chucks have major effects that become apparent in use over the long term. Among other aspects, the lighter the chuck, the less energy is required during the acceleration and braking of the spindle.

Corporate design creates Recognition

Due to the new corporate design, the complete clamping technology range can be immediately identified as a MAPAL product – with a promise of quality and function.


OMG: TSI-TSX Series Adjustable Twin MultiSpindle Heads







The OMG adjustable Multi Spindle Heads TSI and TSX Series come with two parallel or convergent spindles that are especially suitable to mill and to chamfer gear teeth. Special care has been taken with the spindles bearing layout to withstand difficult machining conditions. The result is a solid, compact and reliable unit.

The adjustable multispindle heads TSI and TSX series have many different features: Aluminium body, Cast Iron spindle support, simple and easy to adjust by the operator.

The spindles may turn in the same direction or in apposite direction and the adjustment of both spindles is achieved thanks to a single act. The tool connection may be cylindrical shank or with spring collets. The lubrication is by long life grease. The production of the twin adjustable multispindle head is made possible by the experience acquired in the construction of multispindle heads, production process knowledge and know how to cater for individual requirements with qualified products.

Please contact us for any further information on OMG Multispindle Heads.


HORN: New Supermini HP Geometry + Holder Systems

New Supermini HP and Holder Systems

The new HP geometry for SuperMini is suitable for drilling, boring, face turning and skimming. The new cutting geometry enables shorter machining times due to higher cutting depths. As well as the new geometries, Horn has developed a new holder system for the Supermini type 105. In addition to high repeatability when changing inserts, this results in a higher holding force of the insert and therefore a high rigidity of the overall system.



Please contact us for more information on the new Supermini HP geometry and the new Supermini holding systems.


JBO: Custom Precision Thread Gauges

Special Thread Gauges and Inspection Machine Mountings

We are pleased to offer special custom precision gauges and inspection machine mountings from Johs Boss GmbH & Co KG, Germany.  Thread gauges are used to measure various types of threads.  Plug gauges are used to measure internal threads and Ring gauges are used to measure external threads.

Examples of special gauges are shown below.



GO/NO GO thread plug gauge and GO thread ring gauge for customer-specific 3-starts special thread.


Multiple GO thread plug gauge and GO thread ring gauge M 12.5 x 6 P 0.75 – 6g (8-starts). Maximum quality with ground thread.


GO/NO GO thread plug gauge and GO thread ring gauge for customer-specific asymmetric special thread.


The coordinate gauge rod determines the position of an internal thread via a 3D measuring machine.



GO/NO GO thread plug gauge with increased stem diameter for checking small, deep seated threads.


GO thread ring gauge with DLC coating provides outstanding wear.


Gauge for checking the minimum bore diameter and concentricity of the bore with an internal thread.

JBO Calibration Services for Thread Gauges

If you require thread gauges with a documented calibration certificate, JBO issues a calibration certificate generated in their metrology laboratory. The inspection is carried out in accordance to determined directives, for e.g. acc. DAkkS-DKD-R 4-3 page 4.8/4.9 and is adapted to the intended standards and factory standards of each test item (DIN, ISO, ANSI, etc.).

The scope of testing (see index “Order-Code”), the exact specification, the uncertainty of measurement and the type of inspection are always completely described on the calibration certificate. The traceability to national and international standards is guaranteed. Therefor our standards are recalibrated regularly by an accredited calibration laboratory. On request we supply DAkkS-certifcates or certificates established by an accredited partner-laboratory.

Please contact us for any special gauge requirement.  Our team will be happy to help you with more information.