The invention relates to an oilless
compression device with multiple cylinders and opposite pistons. The oilless
compression device comprises a driving motor, a cylinder and an air guiding cover, and is characterized in that an output shaft of the driving motor is connected with a group of
piston subassemblies which share a shaft, are opposite to one another and freely move in the cylinders in a reciprocating manner; the
piston subassemblies are connected to crankshafts which are connected with the output shaft of the driving motor; a
crankcase is arranged between each
crankshaft and the driving motor; and the
piston subassemblies are driven by the crankshafts to regularly move vertically in a reciprocating manner. Compared with a like compressor, the oilless
compression device has the advantages that the design thought is fashionable; the traditional oil
lubrication mode or the traditional compression
lubrication mode is changed; the structure of the oilless compression device is novel; each double-head piston is provided with a guiding ring and a piston cup, the crankshafts are arranged perpendicularly in a staggered manner, the two cylinders are opposite to each other, and uniform and pure
compressed air can be yielded; and the oilless compression device is reliable and compact in structure, low in cost, high in efficiency, low in leakage, long in service life and high in stability.