The 100-tonne Cimolai mobile boat hauler is believed to be the largest machine in New Zealand, and would be based at the south shipyard from October.
A 450-tonne Cimolai mobile hauler was part of the next stage of development and would be ready for the 2016 summer season.
Initial design of a unique 4000-tonne syncrolift for installation at the site was also being completed.
"This first stage not only targets a market that Oceania Marine currently does not cater for but in addition will ease pressure on the slipping schedule of the 800-tonne railway slipway at north shipyard ... located close by for more large vessel haul outs," said managing director Martin Gleeson. Construction and installation of the first phase was set to finish in October in time for the new season.
Jim Loynes, client liaison and marketing manager for Oceania Marine, said the new haul-out facilities would provide the company with round-the-clock ability to get ships into the yard, solving the scheduling challenges that the company has struggled with.
The firm was looking at a $5 million investment for the initial stages, with the syncrolift operation coming closer to an estimated $20 million.
Oceania took over the lease of the Fraser St yard in 2009 and bought it in 2013 and provides refit, repair and construction services for ships with a focus on superyachts over 25m and commercial ships.
The larger commercial vessels were sent to the Whangarei company due to its ability to cater for the larger ships and the lower cost of services.