References

A Porsche 356 in front of the garage, a paved driveway constantly blocked by strangers' vehicles: today a single retractable V4A bollard with LED ring at the narrow point keeps unauthorised parkers and thieves away – and is invisible in the ground whenever it is not needed.

A new build with a paved driveway, natural stone walls and carport: two retractable barrier bollards made of V4A stainless steel secure the property against unauthorised parking and theft – framed in granite, with a red LED ring, without a gate. With photos by day, at dusk and at night.

Groundwater five centimetres below the turf, the whole area under water: our pneumatic V4A bollards still run at this site. All that sits in the ground is a stainless steel cylinder sealed to IP69 – without motor, circuit board, heater or drain. What counts at a wet site, and three questions you should ask every supplier.

The headquarters of a financial services provider in the Rhine-Main area has an open forecourt directly on the street – any vehicle could roll right up to the main entrance. Today, retractable security bollards made of stainless steel V4A secure both access points: raised and lit blue at night, lowered within seconds for the fire brigade and deliveries.

A campus car park in continuous use, a narrow passage and repeated dents from manoeuvring: two retractable V4A bollards now control who drives into a university car park – by radio transmitter and push button, without a barrier arm and without a gatekeeper.

19 retractable security bollards made of V4A stainless steel secure the Mercedes-Benz Center in Hamburg: raised at night against vehicle theft, lowered during the day for customers – connected to the compressed air of the dealership's own workshop.

Unauthorised parking by day, smash-and-grab raids at night: a business on an industrial estate in Kassel has closed its wide access with three retractable security bollards made of V4A stainless steel – illuminated, at the push of a button, without a gate or barrier arm.

At night, the pedestrian zone of a small town in northern Germany turned into a racetrack – squealing tyres, noise, sleepless residents. Retractable security bollards made of stainless steel V4A now close the access points after closing time and open them for delivery traffic and emergency services. The response was so good that the side streets were retrofitted too.

A stroke at the wheel, full throttle, 65 km/h – and a group of 15 people in front of the hospital entrance. In between, just one stainless steel security bollard. It held: no change in gap, just oil to wipe off. With photos and the crash data (1.5 t, 65 km/h, 250 kJ).

The best-known side street of the Reeperbahn: since October 2018, six retractable V4A security bollards have closed Große Freiheit every night from 8 p.m. to 6 a.m. against vehicle attacks – lowered during the day for delivery traffic, controlled from the Davidwache, mechanically locked against sabotage. With photos of the installation and in operation.

No fence, no gate – the open architecture was to remain, yet the driveway was to stay private. A retractable V4A bollard solves this, and it keeps running in frost, snow and road salt.