Fisherbrand Tube Rotator Multi-Purpose 80 RPM

The Fisherbrand™ (Catalog Number 88861049) Multi-Purpose Tube Rotator is a versatile benchtop mixing device designed to provide a wide range of motion for biological samples, ranging from gentle rotation to vigorous tumbling. Unlike standard fixed-angle rotators that offer only one type of agitation, this unit is defined by its adjustable head angle, which can be manipulated to change the mixing action. When the head is oriented vertically, it provides an end-over-end tumbling motion ideal for keeping blood or cell suspensions mixed; when tilted horizontally, it offers a milder rolling motion suitable for delicate samples.

The unit features a variable speed control, typically offering a range of 5 to 80 RPM, which allows the user to fine-tune the agitation intensity to the specific viscosity of the sample. It is equipped with a digital display (depending on the specific revision, some are analog) to monitor speed and run time. The housing is designed to be compact and stable, occupying minimal bench space while remaining heavy enough to prevent "walking" during operation.

A key advantage of this system is its flexibility regarding tube capacity. The rotator utilizes an interchangeable paddle system (tube holders) that snaps onto the rotating head. These paddles can be mixed and matched to accommodate various tube sizes simultaneously, including standard 1.5/2.0 mL microcentrifuge tubes, 5 mL / 7 mL collection tubes, and larger 15 mL or 50 mL conical tubes. This eliminates the need to buy separate dedicated machines for different vessel sizes.

Used; excellent condition.