G & O Kert P/L trading as

Elmass Internal Keyways
44-50 Achievement Crescent
Acacia Ridge QLD 4119
Tel: 07  3881 1919

Special Broaching Machines For Keyways, Involute & Straight Sided Splines


The modular design concept of our machines as well as the flexibility of our tools allow our design engineers to adapt our machines to a very wide range of applications.

Such applications can be the integration of the machines into a production line as demonstrated in the picture on the right. This machine automatically clamps a body into position and broaches thereafter 8 keyways simultaneously into it.

Similar integrations can be done by letting fixtures being precisely positioned on a carousel that travels through the centre of the broaching machines. Such carousels have usually a manual loading and unloading station. Alternatively they are purpose built stand alone machine to fulfil a dedicated task such as broaching a spline into a tapered bore of a pitman arm, machines with dual heads for mass production or machines that have exchangeable work tables with hydraulic clamping mechanisms for the mass production of different parts.


P20 – 250 NC Extra wide

Fully enclosed,  with NC-controlled cross table for the production of multiple keyways on a plate. This machine is used in the pharma industry

This machine operates in Germany.

P20-250 TS with exchangeable work tables

Each work table contains an integrated clamping mechanism for parts. The work tables are used to cut keyways in tapered and straight bores.

This machine operates in Mexico.

P36-700 NC – Dual Head

For mass production of indexed keyways. The options integrated cross table, NC-turn table, second broaching head  and air blow are included.

This machine operates in Australia.

H16-400 Spline broaching machine.

This machine broaches up to 4m long splines in a D = 38mm bore to increase the internal surface area in heat exchanger tubes that are made out of a special alloy.

This machine  operates in France.


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