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Variable speed, reversible control unit for Fisher Dyna-Mix overhead stirrers, enabling precise RPM adjustment.
The Fisher Dyna-Mix 143 Variable Speed Reversible Controller is a specialized laboratory device designed to offer precise speed regulation for Fisher Dyna-Mix overhead stirrers (stirrers sold separately). This compact controller provides variable speed control and reversible rotation, allowing researchers to fine-tune stir rates essential for consistent mixing during sample preparation and biochemical assays.
This controller is widely adopted in laboratory environments requiring reliable speed modulation to support diverse experimental protocols, including biomanufacturing process development and molecular biology sample handling. It enhances reproducibility and efficiency in complex assays demanding consistent and controllable agitation.
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We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 23 October 2026
The middle half of the 273 with a price runs from €250 to €2,150.