Operating economy, modern design, avant-garde technology, are the strong points of this extraordinary plastering machine. Hundreds of machines sold all over the world demonstrate its success. The S28 combines highly professional performances with an interesting price. A product, then, that applies to both general contractors and professionals. We do our best to meet your requirements of quality, performance, reliability and assistance. That attention has led to the development of new and interesting features.It is possible to purchase it with a manual reversing mixer, DMGR, or with a hydraulic loading mixer, HYS, characterised by a low load height. The result: a greater productivity and high ease of use.It is possible to purchase it with a manual reversing mixer, DMGR, or with a hydraulic loading mixer, HYS, characterised by a low load height. The result: a greater productivity and high ease of use. We needed an innovative screw pump able to satisfy the needs of modern building sites. With the S28 from BUNKER, plastering - pumping - injecting is a pleasure. The S28 is a silenced plastering machine with a complete hydraulic operation. This solution avoids the use of unnecessary mechanical parts improving performance and control. Designed for an exceptional resistance against wear, it guarantees perfect plastering for dozens of houses even of 15 storeys, all thanks to the hydraulic control of the flow.