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Blocking system
Low floor bollard

Large diameter low-floor bollards.

Design: Nicholas Grimshaw & Partners, Industrial Design, London

This special bollard combines various bollard forms with the tried-and-true bayonet locking mechanism with predetermined breaking point and locking mechanism.

Upon request, any desired height, diameter, surface or colour is available. Thus an existing barrier system many be supplemented with BURRI Public Bollards with predetermined breaking point in a matching design.


Optional Design & Materials: 
color base frame
Functional Options: 
without predetermined break point
3-sided lock
with bayonet twist lock
with double lock
with KABA 5000 lock
with reflector strip
with predetermined break point
with special lock
with buried base
with base plate
with hand rail
with chain barrier
Mounting Options: 
for setting in concrete
for bolting to site-side foundation / finished flooring
Special base for shallow installation depth
Bollard ground sleeve
Cover plate for ground sleeve
Protective casing with cover

Complementary products

Making of

Competencies deployed in development: 
Design and prototyping
Materials and technology

Systematic safety

High usability – tested in real life

User-friendliness, safety and economy were the basis for their development. Other important conditions were the Road Traffic Act and guidelines issued by the bfu, BöV and the rescue services. The Public Bollard with predetermined breaking point may be knocked over by emergency vehicles if needed. Repair costs are also lower in unintentional collisions, which also lower life-cycle costs substantially. No new foundation or surface work is necessary. Bollards as well as baseplates remain intact. BURRI’s Public Bollard can be easily unlocked at handling height. The lock is thus well protected against snow, ice and dirt.

Sophisticated design and resistant materials

Intensively tried and tested

The special stainless steel castings were designed in close cooperation with
Nicholas Grimshaw & Partners, Industrial Design, in London. BURRI’s construction expertise and choice of durable materials are complemented by public service professional knowledge and guidelines. Feedback from municipal service departments and maintenance personnel was very important in the development of the predetermined breaking point. At the end of the development phase for the new predetermined breaking point, stress tests were carried out at EMPA (Swiss Federal Laboratories for Materials Science and Technology). The breaking point of the safety screws was tested in comprehensive tensile and stress tests.

Patented predetermined breaking point and improved handling

Based on decades of experience

Thanks to its predetermined breaking point, the knocked-over bollard can be restored on site with minimum handling. The drilling depth, diameter and number of notches of the patented BURRI safety screws are precisely tailored to the ideal breaking load range at bumper height. This is set at 350-450kg for bollards 76mm in diameter and 540-640kg for bollards 10cm in diameter. The bayonet locking mechanism, with its claw coupling and baseplate of cast stainless steel, is designed so that the bollard, after being released and rotated, can be removed and later reinstalled. An optional double lock now permits its integration into two different locking systems, e.g. a cylinder lock and a 3-sided lock.

Low life-cycle costs and flexible use

Long-term savings effect thanks to minimum surface impact

If normal bollards are knocked over, high costs often ensue since not only the bollard needs to be replaced, but foundation and surface work are also involved. With the patented Public Bollard predetermined breaking point, foundations are not damaged. BURRI’s new safety screws can be replaced directly on site and the bollard restored. Many older BURRI barrier posts with predetermined breaking points have been in use for more than 20 years, without any need to replace the baseplate or the foundations. Public Bollards with predetermined breaking points are easy to combine with cemented bollards in the same design. Flexible corridors can thus be created for rescue vehicles, deliveries and administration and sensitive areas near parking spaces and turning circles can be protected, as in the Olympic Village in London or various public installations in Switzerland and throughout Europe.