SED-2000DZY-A — Appareil de formation de billes à l’azote liquide
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SED-2000DZY-A Liquid Nitrogen Bead Making Machine — a benchtop laboratory R&D device. Uses a high-precision syringe pump and an XYZ-axis positioning dispenser to drop liquid into 4 × 500 ml liquid nitrogen tanks, instant
Fonctionnement
Sample liquid is metered by a high-precision syringe pump. The XYZ-axis positioning system moves the pump head over the liquid nitrogen tanks and dispenses droplets at the set volume (minimum 1 μl). Each droplet contacts liquid nitrogen (−196 °C) and instantly freezes into a sphere. XYZ-axis speed, acceleration/deceleration, and waiting time are independently adjustable to optimise droplet rate and sphericity.
