Renault Portugal relies on RETROFiT
The QUICKPOINT cylindrical grinding machines selected for RETROFiT reliably produced gear shafts at Renault Portugal in three-shift operation for 19 years. The machines required no major maintenance during their nearly two decades of operation. Now, the machines are undergoing their retrofit at JUNKER. Renault re-installs the upgraded machines in their new production line of transmission shafts for cars requiring the Euro 6 emissions standard. The car manufacturer also purchased new QUICKPOINT machines for this project.
The machines must produce with high precision and top-notch surface quality at maximum capacity. Nuno Almeida, Project Manager for production lines at Renault Cacia S.A., appreciates the reliability of QUICKPOINT cylindrical grinding machines and continues to trust the machine model.
The JUNKER retrofit service
During a RETROFiT, the JUNKER service team checks the machine directly at the customer site. All components are inspected and documented. The expert team of the JUNKER Group considers the customer requirements and takes the latest safety regulations and technological advances into account when performing a technical upgrade of a machine. The machine conversion can take place at the customer site or at one of JUNKER‘S production sites in Germany, the Czech Republic, or Brazil.
Renault counts on JUNKER‘S RETROFiT service to modernize its QUICKPOINT machines at JUNKER‘S production site. Grinding and dressing spindles, as well as the workpiece spindle, receive new bearings, alignment, and balancing. The infeed spindles of the machine are completely renewed, and electrical, hydraulics and measuring system are upgraded. A control system upgrade ensures simplified operation and the required process reliability in the production line. JUNKER takes care of the entire RETROFiT process considering transport, modernization, installation, and startup back in the production line.
Most customers undergoing a RETROFiT usually need to create a buffer of workpieces to keep their assembly running smoothly. At Renault, the planning was somewhat simpler: upon completion of the machine upgrades, the modified machines will be installed in a new production line currently under planning, while the newly purchased QUICKPOINT machines filled in the gaps in the old production line in the meantime.
The Renault project shows that modernization is worthwhile for growing or restructuring companies. The JUNKER RETROFiT service offers numerous advantages: low investment costs, functional expansion through modern components, higher flexibility through new software, extended scope of application, and increased machining quality. Renault Portugal intends to continue modernizing its machinery with the RETROFiT service. According to Nuno Almeida, „in the next few years, the JUMAT grinding machines will also be overhauled. At the moment, these machines cannot yet work on the new gear shafts, but this can be changed with a RETROFiT.“back to overview