Poisson series appear frequently in problems of non-linear dynamics and celestial mechanics. The size of such mathematical objects makes their manipulation by means of general symbolic processors (GSP) inefficient. Special processors named Poisson series processors (PSP) have been created to handle them in a more efficient way. We propose here a way to combine the flexibility and easy use of GSPs with the power of PSPs. Using the communication tool MathLink we produced PSPCLink to connect Mathematica with PSPC, a PSP of our own creation. PSPCLink is a set of C-files and one Mathematica package. Compiling the C-files we created an executable program to be called from Mathematica. With PSPCLink we use the PSPC functions in a way completely integrated into Mathematica taking advantage of the good properties of both Mathematica and PSPC.