We take responsibility - ecologically, economically and socially.
In 2015, the UN member states adopted 17 Sustainable Development Goals, which should make our planet more livable by 2030. Sandhelden focuses in particular on the following goals:
Build a resilient infrastructure, promote inclusive and sustainable industrialization and support innovations.
Ensure sustainable forms of consumption and production.
Take immediate measures to combat climate change and its effects.
REGIONALITY IN PRODUCTION AND RAW MATERIALS
Sustainability begins with the raw material quartz sand, which comes directly from Bavaria. Together with a Bavarian system manufacturer, tailor-made products are manufactured regionally.
This reduces the transport routes and the associated greenhouse gas emissions. Post-production, such as hardening and coating, is also carried out locally. This makes Sandhelden products 100% “Made in Bavaria”.
Sustainability is also becoming increasingly important for binders, including inorganic binders.
100 % Made in Bavaria
GREEN PRODUCTION PROCESS
Additive manufacturing is one of the sustainability issues in industry. Aside from plastics, 3D printing is also possible with natural materials such as sand. Sandhelden produces customized quartz sand products using a patented 3D printing process.
In terms of energy and raw material efficiency, 3D printing with sand stands out like ceramics, porcelain and aluminum. In contrast to other processes (additive and non-additive), for example, no melting temperatures are required, which means that the power requirement is also lower.
The customer-specific production enables individual needs and tailored requirements to be met. The process is optimized in such a way that waste is also minimized. The sand not used in the printing process can be reused up to 8 times in production. The prerequisite for this is that the sand was not printed - i.e. did not come into contact with a binder.
In addition, the used sand can be prepared and cleaned after the eighth recycling so that it is suitable for production again.
Products with a high reject rate in their traditional production can thus be produced more resource-efficiently.
Thanks to additive manufacturing, no toolmaking is required. This reduces raw material and energy consumption again. In addition, production errors caused by tool making can be completely avoided.
SUSTAINABLE CUSTOMER AND SUPPLIER MANAGEMENT
We rely on long-term and trusting cooperation in our customer and supplier relationships and pay attention to environmentally friendly transport routes based on regional production, among other things.
Every year Sandhelden saves large amounts of valuable primary resources in the value chain as part of a waste management program with interseroh. The resources saved through the interseroh program alone corresponded to the equivalent of 11 apple trees and 680 kg of greenhouse gas emissions in 2019.
Sandhelden is currently testing 3D printing with recycled plastic. With the innovation voucher from the State of Bavaria, a first feasibility study on the use of microplastics in additive manufacturing was commissioned by the Fraunhofer Institute.
Microplastic printing from the sea differs from conventional 3D printing with plastic not only in that the raw material is recycled, but also in that the printing material is used as a powder instead of a paste. Compared to the established FDM process, the plastic is not made elastic and sprayed, but applied and glued layer by layer.
The next step will therefore be to realize the production from microplastics. For this, the plastic must be brought into a suitable powder form so that it can be printed.
WORK ATMOSPHERE & WORK-LIFE BALANCE
Sandhelden offers open doors for versatile talents within the framework of a respectful, personal and direct culture. As a young company, we offer flexible working time models and performance-based pay.
We also promote the personal well-being of our employees, for example through a dog-friendly office or by using the outdoor pool for breaks.