Stirrer couplings

Required for stirring tasks using glass stirring rods. The flexible coupling compensates for any structural variances.

Further spare parts on request.

Fixed-diameter connection between motor and stirring shaft. Suitable for use in potentially explosive atmospheres (ATEX). Material no. 1.4404

The dissolver stirring rotor creates a radial flow with high turbulence. The mixture is drawn from top to bottom. High shear forces are created at the dissolver disk, which provides effective particle reduction. Recommended for medium to high speed operations.

Made of POM, a plastic material with a good mechanical strength, powerful transmission of up to 300 Ncm, suitable for a speed of up to 1.200 rounds per minute, maximum misalignment of axes 10 mm. Ideal for balancing misalignment of axes between agitator and stirrer shaft, suitable for glass, metal or PTFE stirrer shafts.

• very low centrifugal forces due to low weight
• suitable for both left and right-handed rotation
• no resonance
• simple assembly by means of screw joints with clamp rings
• pivot (length 90 mm) can be shortened by the user

Stirrer head with a permanent magnetic coupling for mixing applications under vacuum. No straight-through shaft, no shaft sealing rings required as the torque is provided contactless by magnetic force.

Speed: 2500 rpm
Material: 1.4435 (AISI 316L)
Seal: FKM
Bearing: Ball bearing made of stainless steel

Drive shaft supplied with 6 mm external square stub.

Perfect combination of drive shaft with ball bearings, rotor and lower bearing made of PTFE/PEEK and a rod 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 into counterbores on the stirrer shaft. This provides optimum power transmission and secure mounting. The 6mm square drive can be fixed into the stirrer coupling or into the agitator.

• powerful transmission of up to 50 Ncm
• no grease required
• all products exposed to the medium being stirred do not contain any metals
• high speed of up to max. 1500 rpm
• high working temperatures up to +250 °C are possible
• excellent chemical resistance
• safe to run dry
• high durability

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 PTFE/PEEK and a hollow shaft made of borosilicate glass. 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) for easy locking and unlocking of the ground joint. Square size 6mm for accepting an agitator or a stirrer coupling. Insertion length of shaft 95mm. Drive shaft outside diameter 50mm.

• gastight stirrer head for perfect vacuum
• stirrer shaft's height adjustable, approx. 40mm
• also suitable for shortened stirrer shafts
• powerful transmission of up to 90Ncm
• excellent chemical resistance
• all products which are exposed to the medium do not contain any metals
• no grease required / save to run dry
• high speed of up to max. 1.500rpm
• drive shaft fixed for your safety
• high durability
• easy disassembly of all parts for cleaning

R 60: Only for use with EUROSTAR 20 / 40 / 60 / 100 / 200 / RW 20, excluding EUROSTAR 20 high speed digital and control.

R 60.1: For MINISTAR 20 / 40 / 80 digital and control, MICROSTAR series and NANOSTAR 7.5 digital.