Choosing between a dry scroll pump and an oil-sealed rotary vane pump is the most common primary-vacuum decision in a research or analytical lab. Both reach similar ultimate pressures; the real differences are contamination, maintenance, and cost of ownership. Here…
The Edwards nXDS series (nXDS6i, nXDS10i, nXDS15i, nXDS20i) is one of the most widely used dry scroll pumps in research and pharmaceutical labs — and the tip seal is its single consumable. If your pump-down time has crept up or…
A turbomolecular pump is one of the more expensive components in a GCMS or high-vacuum setup, and it’s also one where “powers on” and “actually works” can be very different claims. Here’s what we check before listing any turbo pump,…
When a lab upgrades an instrument or shuts down a project, the old equipment often sits in a corner for months because nobody’s sure what to do with it. A little bit of process at the point of decommissioning makes…
When a Peltier-cooled HPLC column oven — like the Shimadzu CTO-20AC or CTO-40 series — stops cooling below ambient temperature, the fault almost always lives in one of three places: the heatsink fan, the driver board, or the Peltier module…
