A lightweight structure for a stable and practical workbench. Constructive characteristics comparable with the Z 4000, with the extra advantage of a system which allows the workbench to adapt to different body builds. Two rollers are found at the extremities for positioning the coffin without effort. Once the casket is fixed the brakes are activated in order to prepare it for use. The wheels are large and swivelling, they allow to move the church trolley with precision and without effort.