Munich-based chain manufacturer, iwis. has recently launched high-performance roller chains, the new b.triton series, with a combination of coatings to suit use in harsh operating environments.

These high-performance zinc flake technology is combined with a special surface treatment, ensuring that JWIS b.triton chains are resistant to corrosion than comparable competitor products in the market, as shown by the results of standardised corrosion tests. The new roller chains are highly sustainable, so they are particularly environment-friendly, especially as they are made from RoHS-compliant materials and free from hexavalent chromium (CrVI). 

The basis of the newly developed chains is the strength of carbon steel combined with special surface coatings. This technology means the chains are ideal for use in highly corrosive environments requiring the characteristically high fatigue strength and tensile strength of carbon steel chains. The feature of the special zinc flake coating is its extremely good adhesion to the base material, which guarantees reliable protection of the roller chain against corrosion – even under the toughest operating conditions. An additional salt spray test with chains already in operational use confirmed that the chain is reliably protected against corrosion. 

Special coatings on bushes and pins reduce wear in JWIS b.triton chain bearings. Extruded bushes and rollers guarantee even better corrosion resistance, reduced run-in elongation and quieter chain running. The new lubricant ‘iwiDUR G’, which was specially developed for the applications in which b.triton chains are used, provides additional protection against wear and corrosion. As a result, JWIS b.triton chains can be used in a temperature range from -10 °C to +130 °C – which can be extended to 150 °C by using an alternative high-temperature lubricant. 

iwis offers a wide range of products for all drive and conveyor technology applications. The comprehensive product portfolio includes precision and high-performance roller chains, conveyor chains, maintenance-free and corrosion-proof chains, accumulation chains, conveyor chains for special applications, leaf chains, flat-top chains, hollow pin chains, pin oven chains and tube conveyor chains, chains and accessories for agricultural machinery, and timing chain drive systems for the automotive industry.