NATIONAL INNOFINLAND PRIZE 2004

ROSETTE SYSTEMS OY, VIHTI

Production of Building Modules and Trusses of Light Gauge Steel by CAD-Controlled Automated Process

By Rosette Technology three workers can produce from steel band 100 different trusses or wall modules automatically during one working day. As raw material is used steel band, in which details are machined directly controlled by computer, including a joint patented by Rosette which is pressed with numerically controlled tools into a construction joint.

The innovation is based on a manufacturing process developed by M.Sc. (Eng.) Kimmo Sahramaa and on his idea how to automatically connect light gauge steel, without any separate elements.

The progress made in Rosette’s designing programs enables direct communication with and visualisation of products to the final customer, and further the automatic transfer of the information to the machines. Direct connection from the customer’s wishes to the manufacturing machine has now materialised also in the construction industry. Exact measurements of wall panels and trusses make it possible to efficiently erect the whole frame on the job site, because the product has been designed till the last detail.

Rosette technology is used in building frames and trusses of single-family houses, frames of multi-storey houses up to the 6th or 6th floor, as well as frames of business buildings and metal halls. The most common raw material is 1-2 mm thick galvanised steel. Constructions may also be made of coated or stainless steel.

The production lines of Rosette Systems products are made by the Finnish cooperation partners. Sales and marketing take place through Rosette’s own, world-wide sales network. Lines have been sold to North and South America and most recently to Turkey. Besides entire processes, Rosette sells technology licences to the lines and keeps its licence customers’ know-how updated. Rosette participates, for example, in the EU-financed Seismic project, which investigates the durability of thin steel constructions in seismic conditions where steel has already become known as a safe building material.

Rosette Systems Oy
Partner Kimmo Sahramaa
Vihdintie 32
FI-03100 Nummela
Phone +358 (0)9 224 27017, fax +358 (0)9 224 27050
kimmo.sahramaa@rosettesystems.com
www.rosettesystems.com