Microplate Washer

A microplate washer is an automated lab device used primarily in ELISA (Enzyme-Linked Immunosorbent Assay) and other assays to ensure consistent washing of microplates, which hold multiple samples.

This instrument streamlines washing processes by dispensing, aspirating, and rinsing reagents within wells, enhancing reproducibility and accuracy across tests. By minimizing residual liquids and contaminants, microplate washers reduce variability in results and help prevent cross-contamination between wells.

They are highly programmable, allowing for custom wash cycles, soak times, and aspiration settings suited to different assay requirements. Microplate washers support various plate formats, such as 96- and 384-well plates, accommodating diverse assay volumes and plate densities.

The washer uses an array of nozzles aligned with the wells to simultaneously dispense and aspirate fluids, making it significantly faster than manual washing methods. Modern microplate washers include adjustable pressure and flow rates to handle delicate cell-based assays without damaging cell layers. Some models integrate magnetic or vacuum filtration for advanced applications, further improving washing efficiency. The device enhances workflow in high-throughput laboratories, especially in diagnostics, drug development, and research applications. With built-in calibration and maintenance routines, these washers ensure consistent performance and reduce the risk of equipment downtime.