Method of manufacturing a rotary scroll machine with radial clearance control

A method for machining and selecting for assembly the pairs of scrolls for scroll compressors comprising the steps of:

• machining a plurality of the first wraps of the pairs of scrolls such that the thickness of the first wrap of each scroll is within a first predetermined range and the plurality of first wraps have a thickness extending over the predetermined range and the radial spacing between adjacent turns of each of the first wrap plus the thickness of the corresponding wrap is the same in each of the plurality of first wraps and is equal to a first predetermined constant;
• machining a plurality of the second wraps of the pairs of scrolls such that the thickness of the second wrap of each scroll is within a second predetermined range such that the thickness of each of the second wraps plus the thickness of a corresponding one of the first wraps is equal to a second predetermined constant and the radial spacing between adjacent turns of each of the second wraps plus the thickness of the corresponding wrap is the same in each of the plurality of second wraps and is equal to the first predetermined constant:
• and
• selecting corresponding first and second wraps such that the combined thickness of the selected first and second wraps is equal to the second predetermined constant.