MURTFELDT Spann-Box G 2 20B-2

Product Details Description The Murtfeldt Spann-Box G 2 is a high-quality automatic chain tensioner, engineered to provide constant and reliable tension for drive and conveyor chains. This model is equipped with a curved guide profile specifically designed for duplex roller chains of the 20B-2 type. Its robust steel housing and the self-lubricating, wear-resistant green plastic guide ensure a long service life and minimal maintenance, effectively reducing operational noise and component wear. Specifications Manufacturer: Murtfeldt Product Line: Spann-Box Model: Size G 2 Guide Profile for Chain Type: 20B-2 (Duplex Roller Chain) Housing Material: Steel, black coated Guide Material: Original Werkstoff ‘S’ (UHMW-PE), green Tensioning System: Internal spring mechanism Label Info Brand: SPANN-BOX Embossed Markings: Murtfeldt Kunststoffe, G 2, 20B-2 Application Ideal for use in conveyor systems, packaging machinery, food processing equipment, and general industrial applications where reliable chain tensioning is crucial for operational efficiency and longevity of the drive system. Country of Origin Made in Germany. CO2 Impact By purchasing this pre-owned item, you are helping to avoid the emission of approximately 10.0 kg of CO2, which would be generated in the production of a new unit. This promotes a sustainable, circular economy. Availability This item is in stock and ready for immediate dispatch. It is a new old stock item in excellent condition. Order now from profideals for expert support and fast delivery. FAQ What is the correct way to install the Spann-Box G 2?First, mount the Spann-Box without fully tightening it, allowing some play against the chain. Then, release the tensioning springs one by one. Once the guide profile is pressing against the chain, slide the unit into its final position and securely fasten it using the locking screws. What kind of environment is the ‘Original Werkstoff S’ material suitable for?The green guide is made from ultra-high-molecular-weight polyethylene (UHMW-PE), which offers excellent resistance to abrasion, impact, and many chemicals. It is suitable for a wide range of industrial environments, including those with moisture, but should not be used in applications with continuous temperatures above 80 deg Celsius. How do I know when the tensioner needs replacement?Regularly inspect the green guide profile for signs of excessive wear, such as deep grooves or significant material loss. The tensioner itself is very durable, but the guide is a wear part. Replace the guide profile when wear impacts chain performance or if the tensioning force diminishes noticeably. profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. Last Update: Friday, March 13, 2026