A machine extending along a longitudinal axis and comprising a front side and a rear side, for assembling, filling and sealing capsules of coffee, comprising - a station for loading the capsules to be assembled, - a station for unloading the assembled, filled and sealed capsules, - a plurality of processing stations comprising at least one station for metering a product into the capsules and at least one station for sealing the capsules filled with the product, and - an intermittent conveyor for conveying the capsules sequentially along a feed path from the loading station to the unloading station through the processing stations, the feed path having at least a first stretch which extends along a first lateral longitudinal side of the machine, characterized in that the intermittent conveyor is an endless track conveyor belt on which are mounted in cantilever fashion a sequential series of bars, each bar in the series being spaced by one feed step of the intermittent conveyor from the bar before it and the one after it and having a plurality of housings for the capsules aligned transversely to the feed path, the feed path comprising at least a second stretch which extends along a second lateral longitudinal side of the machine opposite the first lateral side, at least a third stretch joining the first and second stretches (8, 10) and extending along a front side of the machine, the processing stations being distributed along the first, second and third stretches (8, 10, 12), the beginning of the first stretch and the end of the second stretch being located at the rear side of the machine, wherein the loading station is placed at the start of the first stretch located at the rear side of the machine and the unloading station is placed at the end of the second stretch located at the rear side of the machine. - a station for loading the capsules to be assembled, - a station for unloading the assembled, filled and sealed capsules, - a plurality of processing stations comprising at least one station for metering a product into the capsules and at least one station for sealing the capsules filled with the product, and - an intermittent conveyor for conveying the capsules sequentially along a feed path from the loading station to the unloading station through the processing stations, the feed path having at least a first stretch which extends along a first lateral longitudinal side of the machine, characterized in that the intermittent conveyor is an endless track conveyor belt on which are mounted in cantilever fashion a sequential series of bars, each bar in the series being spaced by one feed step of the intermittent conveyor from the bar before it and the one after it and having a plurality of housings for the capsules aligned transversely to the feed path, the feed path comprising at least a second stretch which extends along a second lateral longitudinal side of the machine opposite the first lateral side, at least a third stretch joining the first and second stretches (8, 10) and extending along a front side of the machine, the processing stations being distributed along the first, second and third stretches (8, 10, 12), the beginning of the first stretch and the end of the second stretch being located at the rear side of the machine, wherein the loading station is placed at the start of the first stretch located at the rear side of the machine and the unloading station is placed at the end of the second stretch located at the rear side of the machine.