Disc for rotary disc digital shaker

Quick Answer: The Disc for rotary disc digital shaker is an interchangeable tube-holding disc, pictured as a bright, metal-look disc with two concentric rings of spring clips, which fits a disc rotator so tubes turn end over end as it spins.

Two Rings of Clips

The photo shows a flat, silver-coloured disc with spring clips standing up in an outer and an inner ring. Two rings put more tubes on one disc, and on many discs the rings are sized differently so small and larger tubes can share the load. Tubes on the outer ring travel further per turn than those near the centre, but both rings invert their tubes once per revolution, so mixing is comparable.

Swapping discs is how a rotary disc digital shaker changes tube format: the motor and controls stay the same, and the disc decides which tubes it can carry. A matching drive style in this range is the Rotating disc digital agitator; confirm the disc fits the hub of your unit before ordering.

A removable disc is also easier to keep clean, because it can be lifted off after a spill and disinfected at the sink rather than wiped in place. Where discs are carried on rods, support rods for rotary shaker discs are listed separately.

Care & Handling

• Push tubes straight into the clips; levering them sideways bends the springs.
• Disinfect the disc off the instrument after a spill, then rinse and dry it.
• Store the disc flat so the clips are not crushed.

Specifications

Uses

• Running small and larger tubes on one rotator during the same incubation
• Adding capacity when the original disc is full
• Replacing a disc with worn or broken clips
• Keeping a separate disc for samples that must not share clips with others

Why Choose LabEquip

Labs extending an existing disc rotator buy this disc to widen tube formats or replace worn clips. It is listed in General Lab Products alongside the rotators it is designed around.

Frequently Asked Questions

Why does the disc have two rings of clips?

Two rings fit more tubes on one disc and often allow two tube sizes at once. Both rings invert their tubes once per turn, so samples on the inner ring still mix well.

Will the disc fit my rotator?

Discs are made for a particular hub and diameter. The rotating disc digital agitator in this range is the likely match, but check your rotator’s model against the disc before ordering.

How should tubes of different sizes be loaded?

Put tubes of the same size opposite each other on the same ring, so each ring is balanced on its own. Mixed loads that are balanced ring by ring run smoothly.

Can the clips be bent back if they loosen?

Spring clips can sometimes be eased back, but repeated bending weakens them. If tubes slip after adjustment, replace the disc rather than risk tubes flying out.

Is the disc suitable for disinfection with ethanol?

Wiping with 70% ethanol is a common routine for rotator discs. For bleach or other harsh disinfectants, check that the disc material tolerates them and rinse thoroughly afterwards.

Should the disc be removed for cleaning?

Yes, where the design allows. Cleaning it off the instrument keeps liquid away from the motor and electronics and lets you reach behind the clips.

Last Updated: September 2026