To protect its drive systems from corrosion, chemicals, wear, scratches, impacts and moisture, Nord Drivesystems offers a wide range of different methods for each application area – from environmentally friendly painting to long-life high-performance coatings and the innovative nsd tupH surface treatment.
In almost all industries, it is important to efficiently protect plant and machinery as well as the drive technology used from external influences like dirt, moisture, spray water and aggressive media. NORD motors and drives are already designed with a high level of protection. Furthermore, high-performance coatings, paints and finishing processes protect the surfaces of drive systems and ensure an aesthetic and uniform appearance.
For paint finishes, NORD uses the latest generation of high-solid paints, which considerably reduces the emission of solvents far below the legally required limits. With up to 80%, high-solid paints contain a large proportion of solid material and combine the emission benefits of hydro paints with the functionality of solvent-based coating materials. In addition, the lower solvent proportion of only 20% allows for very short drying times in production – a decisive advantage over water-based coating systems.
For the electrical industry, NORD offers robust and long-life powder coatings. The treated surfaces are resistant to impact, scratches and wear. They are resistant to weather and chemicals and are even more robust than conventional NORD paints. The anti-static properties of the electrically conducting powder paints prevent static charging of the drive technology and so downtimes are reduced to a minimum. A further advantage: powder coatings are free from solvents and make an important contribution to protecting the environment.
In case of stringent requirements on surface and corrosion protection, nsd tupH surface treatment is the technology of choice. Thanks to a special method, the surface is made corrosion-resistant and harder and makes aluminium behave like stainless steel with regard to corrosion protection. This is not a coating, but a surface treatment that creates a protective layer which is permanently bonded to the substrate material. So nothing can detach or flake off. Damage remains locally restricted and does not spread. The drives are easy to clean and largely resistant to acids and alkalis. It is even possible to use high-pressure cleaners or apply aggressive media.
An nsd tupH treatment is available for most of the NORD modular drive systems made from aluminium. They are not only suitable for hygienically sensitive applications in the food sector but also for various applications in process and pharmaceutical industries. They are typically used on conveyor belts, pumps, mixers or agitators, but also in water and sewage plants and car wash facilities.
Maxxdrive: Heavy-duty industrial gear units
For applications up to 250kNm, NORD’s robust industrial gear units are characterised by very high power density, quiet operation and top reliability. The modular system with its multiple options ensures an extremely high level of design flexibility.
Maxxdrive industrial gear units from NORD provide high output torques from 15kNm to 250kNm and are ideal for use in heavy-duty applications such as agitators, belt drives, mixers, mills, drums or crushers. Thanks to the torsionally rigid one-piece Unicase housing, they achieve a longer bearing life than gear casings manufactured from jointed parts and ensure efficient power transmission and high tolerance for peak loads and impacts. Large low-friction rolling bearings ensure extremely high axial and radial load capacities and a long service life. High-precision axis alignment ensures quiet running. NORD industrial gear units are offered as parallel gear units or as right-angle gear units and cover speed ratios from 5,54:1 to 400:1, as well as up to 30.000:1 with an auxiliary primary stage gear unit. Mounting and fastening can take place on all six sides of the gear unit.
NORD has developed its Maxxdrive XT series 2-stage right-angle gear units especially for applications where low speed ratios in combination with high power performance is required. As standard, the series is equipped with a heavily ribbed Unicase housing and an integrated axial fan. Due to the increased surface and the air guide covers, the cooling air flow is optimised and a very high thermal limiting power is achieved. In many cases, additional cooling is not required. Large roller bearings and centre distances increase the load capacity and service life of the components.
Based on the modular system, NORD plans complete and customised drive systems for heavy-duty operation. This way, attractive solutions can also be provided for price-sensitive industries. This is based on a comprehensive range of frequency inverters, motors, gear units and attached components like couplings, brakes, swing frames and many other options. For example, various versions of drive and driven shafts, mountings, sealing systems, back stops, auxiliary gear units, cooling equipment and sensors for condition monitoring (speed, temperature, vibrations, etc.) are available.