Description
The Soft Cross in the Blade System
A soft-edged cross that keeps thin liquids moving without drawing air into them. Heidon’s blade selection chart places the Soft Cross in the anti-foaming column for thin liquids where air entrainment must be avoided. Supplied as SUS-316 tip or SUS-316 boss. A reverse-twist L version is available on request for shafts turning the opposite direction.
Choosing It Over the Alternatives
- Foam control: the chart’s anti-foaming choice for liquids around 1,000 mPa·s, cultures, and surfactant solutions
- Vessel match: above 10,000 mPa·s, choose a blade diameter of at least 60 percent of the vessel diameter; below that, a ø70 mm blade suits bench vessels from beakers to small tanks
- Multi-stage mixing: boss mount versions clamp at any height and stack two or three deep on one shaft
In the Box and On the Shaft
Blade only; shafts are sold separately and in the FS blade sets. Fits every Three-One Motor mixer that takes the ø8 mm shaft. Backed by our One-Year Total Care Warranty covering parts, labor, and specification compliance.
Need the shaft too? The ø8 mm Mixing Shaft SUS-316 comes in five lengths with the retaining nut included.


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