e400s is one of the low speed single disc single disc machine manufactured by german columbus company. it is used for stripping, sanding, cleaning, shampooing and buffing the surfaces and floor covering. with a 400-millimeter working width, e400s is suitable for daily and long-term usage in small to medium-sized surfaces. operator can easily control the water supply via the handle bar. the mains cable of the machine is waterproof and kink-proof. it has also large operating range because of its 12-meter length. this single disc machine is equipped with a planetary gear set with three planet gears. the configuration of the maintenance free planetary gear and the powerful motor is the ideal pair guaranteeing consistently high performance. a belt drive ensures low running noise in these machines and therefore it is suitable for sound sensitive environments such as hospitals. e400s with a simple structure is smaller and lighter than scrubber driers. operator can easily push this single disc machine because of its large wheels. the steel body of e400s makes it a long durable machine. the body casings are made from shatterproof plastic to protect furniture and fragile objects from accidental damages. this single disc machine machine is also equipped with rubber bumper ring protecting both the machine and the working environment. work safely and with less operator fatigue occur due to continuously variable handle grip and a safety button preventing accidental operation. this single disc machine with a flat construction is suitable to clean under radiators, pipes and shelves. there are various accessories available for e400s machine depending on use such as tank, sprayer and suction unit with ring for dust-free operation.