The object is to provide a substrate processing machine facilitating checking the operation of a device in the interior of a housing from the exterior of the housing. The substrate processing machine includes a base and a module, disposed on the base, and has a device configured to perform a predetermined operation contributing to the production of a substrate. The module can be switched between a fabrication position where the substrate is produced and an offset position that deviates from the production position relative to the base. The device can operate in the production position and the offset position. The operation speed of the device in the offset position is slower than the operation speed of the device to in the production position.