M.C.M. Sealing N.V.

Seal-welding Technology

Seal Welding Technology – Field Replaceable Seals Without Disassembly M.C.M. Sealing has developed an innovative seal welding technology that enables seals to be replaced directly in the field, eliminating the need for complete equipment disassembly. This breakthrough significantly reduces maintenance time, lowers operational costs, and minimizes system downtime. The process allows both O-rings and PTFE seals to be replaced on-site, providing a practical and efficient solution for maintenance in demanding industrial environments. A unique advantage of the technology is that it enables M.C.M. Sealing to produce seals in virtually unlimited diameters, offering new flexibility for large-scale or custom sealing applications. At the core of the innovation lies a highly controlled welding process that creates a joint strong enough to maintain the full functionality of the seal. The weld integrity is designed to withstand high pressures and temperatures without compromising performance. This is where the process clearly differentiates itself from other solutions, which can introduce potential reliability risks. Because sealing systems are critical components, reliability and quality are paramount. The seal welding technology is engineered to ensure consistent weld strength and long-term sealing performance, even in the most demanding operating conditions. By combining field serviceability, cost efficiency, and uncompromising reliability, the seal welding technology represents a significant step forward in sealing solutions for modern industrial systems.

FFKM evolast for SEMICON applications

KEFLOY® FOOD GRADE MATERIALS

Discover our KEFLOY® compounds, approved for food applications. mcm-ol seals continues to expand its range of Kefloy® compounds in compliance with a range of standards: WRAS, BAM, USP Class VI and 3-A® Sanitary Standards Contact us for more information and discover how we are sealing your industry!

New polyurethane materials, Kefloy® 86 and Kefloy® 87

mcm-ol seals introduces new polyurethane materials, Kefloy® 86 and Kefloy® 87, which conform to the latest EU REACH environmental standards coming into force November 2017. Kefloy® 86 and Kefloy® 87 will supersede the renowned Kefloy® 85, Kefloy® 116 and Kefloy® 124 as the materials of choice for polyurethane seals used in demanding linear and rotary applications also in tough environments. The materials maximum operating temperature are improved in water and water-based fluids. In addition, the new materials also boast the characteristics of toughness, rigidity, wear and scratch resistance and demonstrate similar performance characteristics of the materials they replace. For further information on our Kefloy® compounds, please visit www.mcm-olseals.eu

ROTARY SEALS OS-N21 /

Description: Pressure loadable radial shaft seal Elastomer-coated OD, flat Short spring-loaded sealing lip Protective lip against entry of contamination from outside (dust, dirt,...) Special features: Pressure loadable due to special sealing lip design Reliable static sealing inside housing For housings with high thermal expansion, e.g., light metal housing For split housings For housings with increased surface roughness For sealing thin-body and gaseous media No risk of fretting corrosion Efficient protection against air side contaminations Applications e.g.: Rotating / pressurized applications Pressurized units such as pumps or hydraulic motors Materials: Standard material Elastomer NBR 80 blue Spring Spring steel according to DIN EN 10270-1 Metal case Carbon steel according to DIN EN 10139 Special materials : Elastomer FKM / Silicon / ACM / HNBR / CR / EPDM Spring Stainless steel 1.4301 Metal case Stainless steel 1.4301 Application parameters for the standard materials combination: Temperature -40°C to +100°C Pressure acc. to table „Operating parameters for rotary shaft seals“ Shaft speed acc. to chart „Operating parameters for rotary shaft seals“ Media Mineral oil based lubricants, synthetic lubricants. When synthetic lubricants are used for which there is no empirical experience, test the compatibility in the laboratory or - better even - in practical trials. The operating temperature should not exceed 80°C. Design information: Shaft : Tolerance ISO h11 Hardness min. 45 HRC Roughness Ra = 0.2 - 0.8 μm Rz = 1 - 5 μm Rmax ≤ 6.3 μm Surface finish free of orientation (lead free) Housing bore: Tolerance ISO H8 Roughness Ra = 1.6 - 6.3 μm Rz = 10 - 20 μm Rmax ≤ 25 μm Installation: Please read our installation instructions.

EVOLAST® FFKM COMPOUND

Perfluorinated rubber – FFKM EVOLAST® FFKM materials are elastomers with the highest ­chemical and heat resistance. Some FFKM types can be exposed to temperatures a little ­above 300°C. The resistance to chemicals is ­nearly ­universal and compares to that of PTFE. The ­advantage of FFKM is the combination of the ­chemical and thermal stability of PTFE with the elastic properties of an elastomer material. These special-purpose elastomers are used ­wherever safety requirements and high maintenance input justify the high price of these materials and where standard elastomers cannot be used.