Cole-Parmer Stir-Pak 4554-10 Variable-speed Stirrer

Used Lab Equipment Warranty Condition: Used Will be thoroughly tested and serviced
Stock #:
2 Available In Stock (request a quote)
Dimensions (approx.):
4"W x 9"D x 10"H (outside)
Product Description Two motor shafts give you two mixers in one. The direct-drive shaft provides high-speed, low-viscosity mixing; switch to the gear-reduction shaft for your low-speed, high-viscosity mixing needs.
Rugged, permanent-magnet, totally enclosed, non-ventilated (TENV) motor has permanently lubricated ball bearings. Gear-shaft gear ratio is 20:1.
Solid-state controller maintains speed regulation better than ±2% critical for materials that change viscosity as mixing progresses. Improved torque limiting feature protects against motor gear failure.

Chuck: accepts 0.3125 in to 0.375 in dia shafts
Min speed (rpm): 50
Max speed (rpm): 50000

Includes 6"L x 1/2"diam mounting rod and chuck (accepts shafts from 8 to 10mm diam). Stand and impellors are not included and are available at an additional cost. *** Requires speed controller - see stock #35432 ***

** This stirrer is NOT available for sale in Ontario. **


Analytical Instruments / Chemistry lab apparatus
chromatographs, calorimeters, evaporators, fluorometers, hydrogenators, osmometers, polarimeters, spectrophotometers, titrators, meters for pH / conductivity / dissolved solids / ORP ... and much more...

Biology / Microbiology laboratory apparatus
bioreactors, cell disrupters, cell harvesters, cryostats, digesters, freeze-dryers / lyophilizers, growth chambers, homogenizers, hybridization, incubators, microscopes, osmometers, spiral platers, sterilizers ... and much more ...

General Use laboratory apparatus
balances, baths, blenders, centrifuges, chart recorders, freezers, fume hoods, furnaces, glassware washers, glove boxes, mixers, moisture testing, ovens, pumps, shakers, vacuum equipment, water purification ... and much more ...

Medical / Clinical laboratory apparatus
anaerobic incubators, autoclaves, blood testing, cell counters, CO2 incubators, cryostats, electrolyte analyzers, electrophoresis, glove boxes, microtomes, sterilizers, ... and much more ...

Petroleum Products and Biofuel lab apparatus
baths, calorimeters, color measurement, density meters, flash point, hydrogenators, oil testing, penetrometers, surface tension, vapor pressure, viscometers and rheometers, ... and much more ...

Pharmaceutical laboratory apparatus
stability chambers, tablet disintegration, tablet dissolution, tablet hardness, V-blenders, ... and much more ...

Materials Testing / Physical Properties / Metallurgical lab apparatus
abrasion, color measurement, environmental chambers, gloss / reflectance, hardness, impact testers, melt point, particle size, paint testers, penetrometers, sieve shakers, tensile strength, viscometers ... and much more ...