At the heart of the station stopping device, is the Technogrid® energy absorbing system. Each Technopost station stopper has one Technogrid unit centrally mounted flush between the rails. One end of the Technogrid® is anchored to the footwall. The impact post’ is attached to the other end. 

The Technogrid® is a strain energy absorption device that will absorb the kinetic or potential energy of a moving object by deforming a metal grid of known design and characteristics through a stroke deformation of predicted value. 

The impact post is designed to fold flat between the rails to allow traffic flow. The control of the system can be interlocked into the existing station stopping devices and cage winder interlocking systems. 

The impact post is always in the up position and has to be lowered by activating a solenoid valve to allow traffic to pass over the device. If the power source is interrupted while the impact post is in the lowered position, the impact post will automatically fail to the safe ‘up position’. During an impact, the drive shaft will ‘shear off’ and allow the Technogrid® to open up. 

Some of the benefits provided:

• Minimal excavations
• Technopost is installed between the rails
• Minimal drainage requirements
• Controlled deceleration (less than 1g)
• Low maintenance
• Easy to install
• Can be retrofitted
• Cost effective
• Impact energy is safely dissipated
• Only the Technogrid® itself and the drive shaft need replacing after a full impact  

Options:

• 120kJ Technopost
• 300kJ Technopost
• 120kJ Short Technopost
• 120/300kJ Raised Post Technopost

                 120kJ Technopost impact post in up position to arrest rolling stock before falling down a vertical mine shaft.

                                                        Close up of the impact post in the lowered position.