My machine was manufactured about three years ago I think and didn't include needle valves on the cylinders. The cylinders would create enough of a shock wave to pop nearby 0402 parts out of the tapes.

I found these excellent flow control valves, SMC part number SMC AS1201F-M5-04A (with 5mm threads) that have really tamed down the cylinder actions. I haven't had a chance to check if they will entirely solve the 0402 problem but will get to that soon, and hopefully add a reply to this post. The machine makes a much calmer sound on feed advance and it's a comfort to know that I can apply the required amount of power and no more. The valves also have a really clever locking mechanism where the top pops down to lock the control so vibration can't change the setting.

They were also about $7 ea in the US so very affordable.