A compactor can include a first sidewall, a second sidewall, and a bottom wall, which define a receptacle. The compactor can further include a ram assembly positioned with the receptacle and coupled to a drive assembly. The compactor can further include a frame having a lower longitudinal support member extending between the first sidewall and the second sidewall and an upper longitudinal support member extending between the first sidewall and the second sidewall at the top of the receptacle. A continuous, unobstructed opening is defined between the upper longitudinal support member and the lower longitudinal support member, and a removable cover can be fastened to the frame to overlap the continuous, unobstructed opening.