Description
HWS-couplings for stirrers with bellow, VA
For compensation of extreme vibrations
HWS-dynamic seal for stirrers, self-adjusting, patended
HWS Dynamical seals are manufactured, that medium can only come in contact with glass or PTFE. They can be used under vacuum and little overpressure, however a fine ground (or polished) shaft in glass, metal or other materials is necessary. A speed of max. 800 rpm should be only be exceed for a short time.
A coil in special steel presses the PTFE lips permanently against the shaft and glassbody.
HWS-ceramic mechanical seal
In PTFE compound with 2 encapsulated ball bearings in s/s.
The planes of the ceramic seals can be used without oil and discover a high gas tightness. The co-rotating inner sleeve (in PEEK or Hastelloy HC4) permits the use of stirrers in different materials (particularly suited for coated stirrers). max. 800 rpm, max. Temp. 200°C.
BOLA Magnetic Stirrer Heads (P-MRK) Rodaviss, PTFE
BOLA Magnetic Stirrer Heads (P-MRK), Hastelloy®, PTFE
Ideal stirrer head for PTFE-jacketed stirrer shafts from BOLA. Consisting of capsuled drive shaft (stainless steel) with ball bearings, rotor and lower bearing made of PEEK-Compound and a borosilicate glass receiver. Requires little space due to compact construction. No leakage or memory effects due to non-porous, welded rotor. Compression fittings for safe fixing of stirrer shaft and optimum power transmission. Joint-Cone with nut (Safe-Lab) made of PTFE for easy locking and unlocking of the ground joint. Square size 6 mm for accepting an agitator or a stirrer coupling.
BOLA Magnetic Stirrer Heads (P-MRK), Glass, PTFE
Ideal stirrer head for PTFE-jacketed stirrer shafts from BOLA. Consisting of capsuled drive shaft (stainless steel) with ball bearings, rotor and lower bearing made of PEEK-Compound and a hollow shaft made of Hastelloy®. Requires little space due to compact construction. No leakage or memory effects due to non-porous, welded rotor. Compression fittings made of PEEK-Compound for safe fixing of stirrer shaft and optimum power transmission. Joint-cone with Rodaviss® fixing system for easy locking and unlocking of ground joint connections with Rodaviss® thread. Rodaviss® screw cap, sealing ring and expanding ring are included in the scope of delivery.
BOLA Magnetic Stirrer Heads (G-MRK), Glass, PTFE
Perfect combination of drive shaft with ball bearings, rotor and lower bearing made of PTFE/PEEK and a conductor made of borosilicate glass. Requires little space due to compact construction. No leakage or memory effects due to non-porous, welded rotor. This rotor holds the stirrer shaft by means of three stud screws which are fixed in the counterbores of the stirrer shaft. This provides optimum power transmission and a safe fixing. The 6 mm square can be fixed into the stirrer coupling or into the agitator.
