The secondhand equipment listed on these pages is all sold in working order, unless otherwise stated.

We offer a 3 months return to base warranty on used equipment, from installation date.  The warranty excludes lamp, piston seals, pistons and check valves. 

In the event that we are unable to repair the equipment we would, at our option, offer an equivalent item as a replacement or a refund of the purchase price.

Click on picture(s) for larger/more images

Waters M600 Quaternary Gradint Pump (Analytical)

This Waters Quaternary Gradient Pump comes in full working order (it has been used regularly in our laboratory over the past 12 months). The unit features dual pistons in parallel (to reduce pulsation), computer controlled solvent degassing using Helium (Helium not supplied), 4 solvent lines, static mixer and flow rate up to 10ml/min.

£1295.00 (+VAT)

Quaternary Gradient Pump from ATI Unicam, model Crystal 200. This pump is in excellent condition, almost like new, and in excellent working order. We have tested its gradient performance, which is excellent. The check valves and proportioning valves are working perfectly, and it gives very reproducible gradients time after time. We do not have a manual, but have been using it in our labs so can show you how it works, we also have made up a gradient start cable so it can be connected directly to the start signal from an autosampler.

It has a micorflow head, able to pump from 0.010-5.000ml/min, and gives very smooth flow.

£2495.00 (+VAT)