A high capacity square baler comprising a pickup mechanism configured to pick up a single windrow of crop material off the ground. The baler additionally comprising one or more stuffer chutes each configured to receive at least a portion of the crop material picked up by the pickup mechanism. The baler additionally comprising one or more stuffer assemblies each configured to push crop material generally upward through one or more of the stuffer chutes. The baler additionally comprising a plurality of bale-forming chambers each configured to receive crop material from one or more of the stuffer chutes. The baler further comprising a plurality of knotter assemblies each associated with one of the bales forming chambers and each configured to wrap and tie securement lines around each formed bale. The knotter assemblies are configured to operate independently of one another, such that formed bales can be tied at different times.
