Hamilton Company expands its PSD/4 precision syringe drive product family with the launch of PSD/4 Smooth Flow. The Smooth Flow delivers exact flow rates in nanoliters per minute with total dispense times up to 8 hours. It is perfect for engineers seeking an economical way to automate processes that were developed on lab-scale pumps, and is also ideal for flow cytometry and microfluidics applications where smaller sample volumes, faster analysis time, and more sensitive detection mechanisms require accurate and extremely small precision flow rates. The compact PSD/4 design now has 192,000 steps of resolution across the 30-mm stroke. The pump is compatible with a variety of catalog and custom valves as well as standard and long-life syringes from 12.5 µL to 12.5 mL.