1952 – First oil-free screw compressor stage.
1953 – First two stage oil-free industrial compressor module
1958 – Oil-free SILU prototype
1967 – SILU truck mount with auxiliary drive


1972 – SILU Aggregate for Truck Mounting
1979 – Supply and License agreement between Ingersoll-Rand and GHH
1984 – Design of 2 stage Oil-free CD block
1994 – Ingersoll-Rand joins MAN GHH in joint venture to form GHH RAND
1997 – Development and Implementation of UltraCoating on all oil-free airends
1998 – GHH RAND becomes full subsidiary of Ingersoll-Rand
2002 – GHH RAND celebrates its 50th Anniversary in the oil-free rotary screw industry
2005 – New OS Series of oil-injected screw airends
2009 - GHH RAND introduces a new product for the liquid road tanker market: The SV120, a compact and extremely reliable sliding vane compressor
2010 – GHH RAND introduces the next innovation: The CS1200 family. A direct driven in-chassis solution, PTO driven, light weight, durable and easy to install
2013 – The CS580/CS750 series completes the direct driven in-chassis range.