Centralized Competence in Plastics for Professional Cutting Tools
Greiner Assistec displays its technological diversity in the production of water sets for Makita and Dolmar cutting tools.From concept to serial production, Greiner Assistec supports the Makita Group during the development of its water sets. The plastic components designed for the cutting tools need to fulfill an array of specific requirements. A unique and highly functional solution was implemented using a variety of technological methods.
Kremsmünster, 20 June 2013 – “When cutting tools are used on rigid materials such as stone or concrete, water is applied to capture the dust generated during the process. When cutting steel, the professional cutting tool needs to arrest flying sparks. The plastic water sets required for this process are exposed to extreme loads. Due to solution-oriented action in our partnership with Dolmar – the combustion engine-based equipment specialist of the Makita Group – we managed to devise an optimum solution,” Franz Dilly, Head of Division Greiner Assistec at Greiner Packaging International, was pleased to say.
Challenges: Temperature, tightness, geometry
During practical use, water sets are exposed to heavy loads. Therefore, the deflection temperature needs to be as high as 200º C under load (1.8 MPa). In addition, the water sets need to contain flying sparks. And another demand is watertightness along with the relevant throughput, and this is provided by the specialized inner geometry of the plastic parts.
A combination of diverse technologies
This challenge in regards to geometry is overcome by Greiner Assistec with the use of GIT (Gas Injection Technology), an injection-molding technique that is particularly suitable for thick-walled components. Crosslinking (electron radiation) is used to modify the plastic parts to resist high temperature loads. At the Greiner Assistec facility, these plastic parts with their enhanced material properties are mounted on the water sets. This comprehensive service package for Makita-Dolmar also includes the performing of functional tests as well as testing for watertightness.
In 1915, Makita was founded in Japan by Mosaburo Makita. The Makita Group took over the German power tool manufacturer, Dolmar, in 1991. The company group’s Research & Development sector maintains a consistent focus on applications, which are the basis for the regular market launch of innovative, high-performance Dolmar and Makita branded products.
Greiner Assistec is a division of Greiner Packaging International. Its main strengths are the development, production, logistics and assembly of plastic parts hereby offering custom-tailored sourcing solutions. Greiner Packaging International is one of the leading companies in the European packaging industry. In 2012, the company achieved annual sales of EUR 472.9 million (EUR 488 million including Joint Ventures) – more than one-third of the total Greiner Group sales. Greiner Packaging International has a workforce of 3,236 employees throughout 34 locations.