The company described Scheinkestel's departure as a pre-determined "transition plan", effective on 31 December 2009.
The move coincides with the appointment of Mark Hooper as executive director of PaperlinX. Hooper has served as the company's chief financial officer since October 2008.
The overhaul continues a period of change for the company, which announced last month that it was pulling out of paper manufacturing in order to concentrate on its global merchanting operations.
This will result in the full closure of the company's Wesley Vale mill and the partial closure of its Burnie mill. The Australian Manufacturing Workers Union (AMWU) has said this would lead to the loss of as many as 580 jobs, though PaperlinX has claimed that only 252 jobs would be lost.
The company is continuing to look for a buyer for the Burnie mill, with workers conducting a series of strikes prior to Christmas, demanding that PaperlinX guarantee their redundancy and leave entitlements if a buyer is not found.
Reports claim that roughly 170 jobs will be retained at the mill if a buyer is found by June.