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Safety screens

Sharp rocks, big stones, branches, unstable loads - a driver without protection is living a dangerous life. Hammerglass offers unbreakable glass solutions as a substitute for standard screens, bullet resistant glass and mesh-reinforced glass. Hammerglass replacement screens are available for the most commonly occurring machines, in thicknesses appropriate to the screen size and specific protection needs involved. Hammerglass screens are bonded to the cab like the original screens.

Requirements for vehicle glazing

Scratch resistance – The screen must not be scratched by the windscreen wiper, unless there is sand or grit on the screen. Hammerglass screens are coated with a thin layer of silicon oxide which protects against scratches and wear and tear. In sand-filled environments, however, we recommend that a sacrificial film is applied to the screen.
Sharp object – During quarrying and metal recycling sharp-edged projectiles are directed at the screen. The screen must withstand such attacks, but eventually it will become chipped and will need to be replaced.
Large rocks – The screen must remain in place and protect the driver if large rocks strike the cab at high speed.
Pressure wave – The screen must remain in place in its mounting in an encounter with undetonated explosives. It must not be forced into the cab by the pressure wave or sucked out by the vacuum generated following the explosion. Hammerglass RABS  approved screens are explosion tested and comply with the driver safety requirements of the Swedish Work Environment Authority.


Hammerglass versus competing laminated glass in a FOPS test in the autumn of 2020.

This is how it went, and the question is...


Unbreakable solutions are used as a replacement for standard screens, bullet-proof glass and grilles. The Hammerglass screen is fitted in the same way as the original screen. The Hammerglass screens will withstand both chemicals and the action of the windscreen wiper. However, in environments with increased exposure, where ordinary screens become chipped or worn away by sand and grit, the screen can be provided with a self-adhesive sacrificial film, which the driver replaces as and when required. The screens are also available in a special heat-reducing version which removes around 50% of incoming solar heat.


One-piece angled screens save both time and money. An angled windscreen for a wheel loader can be supplied in one piece or in three separate sections for gluing/assembling in situ. The installation work can be completed within little more than an hour, which is a fraction of the time required for the installation of a normal glass screen. The screen can be provided with a sacrificial film to reduce wear and tear from the windscreen wiper in gravelly environments.


The material properties of Hammerglass make it possible to cold bend a screen, where a glass joint or fixing with a window pillar would otherwise normally be required. Hammerglass may also be thermoformed in order to produce bent or double-bent screens. We are working actively to expand our range of unbreakable shaped screens. However, this range is controlled by demand, so please enquire with your machine dealer about bent or curved Hammerglass screens for excavators, dumpers or wheel loaders.