The ship was built in 1928 as Moerdijk by the Dutch state, for the service between the city of Moerdijk and Willemsdorp, crossing the river Hollands Diep. Only in 1936 the ferry was replaced by a new bridge (Moerdijkbrug). During the Second World War, the ferry was requisitioned by the German Wehrmacht, using the ferry for the transport of troops. Also during the war, the Moerdijkbrug was damaged, so right after the war ended, the ferry was temporarily used again between Moerdijk and Willemsdorp. 

Halfway the 1940s, the three nearly identical Moerdijk ferries were transferred to the PSD (Provinciale Stoombootdiensten Zeeland) ferry services, strengthening their heavily damaged fleet. In the first postwar years, PSD invested in new ferries, resulting in the ferry Moerdijk being sold to RTM in 1953. 

RTM renamed the ferry to Krammer, and the steamer was put into service between Zijpe and Anna Jacobapolder. In 1959 sister ship Willemsdorp also joined the RTM fleet, being renamed Zijpe. Krammer was in RTM service until September 1972. No other car ferry service in the country was carried out with steam. The condition of the boilers quickly deteriorated in the 1970s, however. Sister vessel Zijpe was converted to diesel propulsion, Krammer awaited scrap in August 1973. 

Zijpe provided the ferry service until 6 July 1988. With the completion of the Philipsdam (part of the famous Delta Works), the ferry service ended after 88 years.