STIRRER SHAFTS, POLISHED, 19MM, CHEM-STIR™

Eliminates Flask Breakage:
• PTFE is the only contact in the lower radius of the flask, therefore breakage due to dropping the stirrer shaft has been eliminated.
Eliminates the Frustration of Assembly:
• Unique design permits the proper amount of tension to be applied to the blade, thereby preventing the blade from flipping over to the incorrect side during insertion into the flask.
• Special PTFE blades are not required. Design permits use with any PTFE stirrer blade with the keyhole shaped cutout for 10mm or 19mm shafts.
• Available in both Ground and Polished styles.

A 19mm OD precision ground and polished stirrer shaft with our patented Chem-Stir™ blade attachment system. Shaft (C) has been manufactured with a ring at the lower end to permit attachment of the blade (B) with a PTFE nut (D) and bolt (A). Shaft is supplied complete with PTFE nut and bolt set. For use with PTFE bearings such as the CG-2086. Polished shaft will not cause abrasion to the sealing surfaces of the PTFE bearing, thereby allowing a vacuum tight seal. Uses the same PTFE nut and bolt blade attachment method as the CG-2084 ground shaft.

PLEASE NOTE: STIRRER BLADES MUST BE PURCHASED SEPARATELY.

THESE SHAFTS ARE NOT TO BE USED WITH ANY TYPE OF GLASS BEARING. FOR GROUND SHAFTS USED WITH GLASS BEARINGS SEE CG-2084.

ALSO NOTE: 19MM SHAFTS HAVE A REDUCED DIAMETER TOP SECTION THAT IS 1/2"OD, PLEASE KEEP THIS IN MIND WHEN SELECTING THE PROPER SIZE COUPLING.

** US Patent Number 5,326,167