Z-height is always a concern when adding accessories such as stirrers, racks, pin tools, shakers, and heatblocks to any liquid handler. This is why V&P has made a line of ALPs for your Beckman Liquid Handler.

There are many different heights to choose from with mounting holes in the pocket. The mounting holes allow you to fix stirrers and other accessories with ease. 

We can also make custom heights if we do not have one that fits your application.