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Hammerglass 2013-04-09

Hammerglass withstands explosions

Windows undamaged, but steel container was destroyed...
On Monday 12 November 2012, SP Technical Research Institute of Sweden in Borås carried out a new series of tests on Hammerglass Vehicle glass. The test was carried out in accordance with EN 13124-2. This meant that a series of shapes of glass were mounted in different types of steel frames. Seven explosions were carried out at a distance of 3 metres.

Hammerglass windscreens have undergone the following tests for use in hazardous areas:
- Pressure wave upon detonation (EN 13123-2 and EN 13124-2): 3 kg of TNT was detonated 3 metres from the screens. To prevent the Hammerglass screens falling into the driver compartment, the front windscreen is mounted in a steel frame.
- Heavy objects at high speed (EN 15152-2): A 1 kg, aluminum projectile is fired against the window at a speed of 450 km/h.
- Sharp objects (EN 356 P8B): The windscreen has withstood 72 blows from a machine-mounted axe, without the axe penetrating the glass (the impact point of the axe was in the same place every time).

Stronger than steel
As a final test a few kilos of gravel-type stones were placed around the explosives, prior to detonation. The stones made deep marks in the glass, but nothing more. However, they went right through the steel container - 3 mm of weathering steel! The container used for the test was completely ruined and moved by the explosions - even though it was filled with 20 tons of concrete in order to maintain stability.

Complete package
When buying a new machine to be used in places where there is a risk of undetonated explosives, Hammerglass offers a complete package including 12 mm Hammerglass in the front windscreen and 8 mm in the other windows. To achieve vandal-proof glass and a safer driving environment, there is a package that includes 8 mm Hammerglass in the windscreen and side windows and 6 mm Hammerglass in other windows. Hammerglass can of course also be retrofitted to older machines.

"What we have learned from these explosive tests is that having protection in the front windscreen only, is clearly not sufficient. If there is a strong explosion, the side windows in the cab will shatter, whether they are of tempered or laminated glass. That’s why we are developing Hammerglass solutions for side windows and rear windows."

How much is a life worth?
After blasting operations, it is not uncommon for undetonated explosives to remain in the ground. If a truck lifts or drives over this explosive and it detonates, there is a serious risk of injury or worse for the driver if the truck is equipped with a standard glass windscreen. A windscreen with 12 mm Hammerglass provides effective protection against a direct explosion. However, it is important to have the right sheets of Hammarglass throughout the vehicle. The pressure from an explosion will split the side windows if they are made of ordinary glass – with dire consequences for the driver. A 12 mm Hammerglass sheet weighs 14 kg/m². To achieve the same protection with safety glass you need a sheet 24 mm thick with a weight of 70 kg/m².


Hammerglass is expanding in Germany

Hammerglass Automotive continues its journey in the European construction world and the next stop on the road towards safer driving environments and better operating economy is Germany.

Swedish glassmaker Hammerglass is now continuing its expansion and has during the early autumn established itself with subsidiaries in Germany. Hammerglass Automotive, which is the market leader in the construction machinery segment, already exists with its own companies in Sweden, Norway and Denmark and included within the expansion plans are additional countries in Europe and the rest of the world.

Hammerglass opens in Nuremberg

Responsible for the business development in Germany will be Oliver Afsah, who left his position at the company Thyssenkrupp in early September to land at Hammerglass GmbH's Nuremberg office. Already today, Hammerglass is established in Germany as a product, but without its own sales organization. Although Hammerglass glass systems are available for most brands and models, there are still gaps in the range.

– Hammerglass' goal is to be available to all machine manufacturers shortly - either as an option when the customer buys a new machine, or in the aftermarket when a screen is broken or if you need to secure the machine for tougher workouts, says Oliver about the investment in Germany.

Oliver will be responsible for the German operations and is currently in an intensive phase of product training and marketing planning. Oliver will put a lot of energy into building relationships with Hammerglass partners and as a German speaker, communication will be easier.

– It will be a great advantage that I am both where the customer is geographically and also has the language as a mother tongue, says Oliver.
What are your biggest challenges with Hammerglass Automotive in Germany?
– To make the market aware that there are no alternatives to Hammerglass, Oliver concludes with a smile.

The protection rules for construction machinery are tightening

Around Europe, a lot is happening on the driver's safety front. Earlier this spring, the Norwegian State Roads Agency introduced new tough rules for the protection standard that applies to the construction machinery used on their construction sites. More countries are expected to follow in the same tracks as risks in the machinists' work environment are at the center. The protection standard used in Norway and Sweden is called Protection Class 3 - RABS and is a collection standard consisting of several different European sub-standards and standards. Nothing new then, just a new combination requirement. Hammerglass is one of the few companies that meets the tough requirements and that welcomes more standards in the field.

Bengt Nilsson, CEO of Hammerglass AB comments on the RABS requirements:
– It is good for the industry if there are clear requirements and standards that regulate what is the right protection. This makes it easier for contracting companies to create a safe working environment”, says Bengt Nilsson.

Lifeguard and piggy bank

In addition to Safety Class 3 - RABS being a protection for the individual machine driver, Hammerglass protection solutions also offer several financial advantages for construction machine owners. With Hammerglass in the cab, downtime in production is limited or avoided as window replacements are made less frequently. Machines that do not run in high-risk environments also benefit from the Hammerglass system, especially with an add-on Sacrificial Screen. When the sacrificial screen is worn by gravel wear and propelling stone chips, it is replaced without having to make more in-depth window replacements in the cab. The savings with replacing a sacrificial screen many times greater than replacing an ordinary windscreen.

Property 2018-03-24

Record order for bullet-proof glass

Hammerglass AB has landed the company’s biggest order in years with a request for bullet-proof and explosion-proof windows and doors worth 1.8 million EUR. The order was received by Hammerglass Property and confirms the company’s leading position within the area of security glass.

– Unfortunately, the very strict secrecy requirements mean that we cannot disclose the identity of either the customer or the risk object, but I can confirm that installation will be carried out during Q3 and Q4 this year, and that it involves upgrading a property in Sweden, says the Head of Hammerglass Property, Torbjörn Timmermans.

– We have for a long time offered ballistic-resistant solutions which, thanks to the characteristics of Hammerglass, are much thinner and lighter than traditional bullet-proof panels. Because we are also able to manufacture bullet-proof insulating glass, a lower weight and thinner glass package are of extra significance.- Besides supplying complete window and door systems, we can also handle everything from fixing solutions to turnkey installation. In consultation with the customer we establish the relevant threat level, make a thorough risk assessment of the risk object (Security Assessment) and finally present the customer with a solution.

– There are still many that believe it is enough just to have a protective film on the inside of the pane in order to withstand terror attacks. Unfortunately, both experience and testing demonstrate that not even films of the right protection class can help to any significant extent. What is more, in 9 out of 10 cases it is not possible to attach the film to the window frame in the correct way, which means that the entire glass package is forced into the room in a violent attack. We live in a world where the risk of terrorist attacks is constantly on the rise, and more and more understand the importance of having the right type of protection in case anything should happen.

Bengt Nilsson, MD of Hammerglass AB in Förslöv, now sees that further investment is needed in both production equipment and personnel in order to cope with the increased demand.
– We increased our turnover by 80% from 2016 to 2017 and by the end of February this year we had already reached our projected turnover for 2018, says Bengt Nilsson. This is of course extremely gratifying, but we’ve been laying the groundwork for this over many years and that is what has made our current market presence and volume increase possible. Exports account for around 40% of the turnover, and even though our business in Sweden is growing, we can still see that the primary potential for increases in sales of our products lies in exports. And we are not just active in the Property division, but also in Infrastructure and Automotive. These, too, are showing excellent growth, which means that the question of taking on new staff will arise during the year, says Bengt Nilsson in conclusion.